[Feature][ZXW-88]merge P50 version

Only Configure: No
Affected branch: master
Affected module: unknown
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I34667719d9e0e7e29e8e4368848601cde0a48408
diff --git a/ap/lib/libcurl/curl-7.86.0/tests/runtests.pl b/ap/lib/libcurl/curl-7.86.0/tests/runtests.pl
new file mode 100755
index 0000000..3f61972
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/tests/runtests.pl
@@ -0,0 +1,6306 @@
+#!/usr/bin/env perl
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# SPDX-License-Identifier: curl
+#
+###########################################################################
+
+# Experimental hooks are available to run tests remotely on machines that
+# are able to run curl but are unable to run the test harness.
+# The following sections need to be modified:
+#
+#  $HOSTIP, $HOST6IP - Set to the address of the host running the test suite
+#  $CLIENTIP, $CLIENT6IP - Set to the address of the host running curl
+#  runclient, runclientoutput - Modify to copy all the files in the log/
+#    directory to the system running curl, run the given command remotely
+#    and save the return code or returned stdout (respectively), then
+#    copy all the files from the remote system's log/ directory back to
+#    the host running the test suite.  This can be done a few ways, such
+#    as using scp & ssh, rsync & telnet, or using a NFS shared directory
+#    and ssh.
+#
+# 'make && make test' needs to be done on both machines before making the
+# above changes and running runtests.pl manually.  In the shared NFS case,
+# the contents of the tests/server/ directory must be from the host
+# running the test suite, while the rest must be from the host running curl.
+#
+# Note that even with these changes a number of tests will still fail (mainly
+# to do with cookies, those that set environment variables, or those that
+# do more than touch the file system in a <precheck> or <postcheck>
+# section). These can be added to the $TESTCASES line below,
+# e.g. $TESTCASES="!8 !31 !63 !cookies..."
+#
+# Finally, to properly support -g and -n, checktestcmd needs to change
+# to check the remote system's PATH, and the places in the code where
+# the curl binary is read directly to determine its type also need to be
+# fixed. As long as the -g option is never given, and the -n is always
+# given, this won't be a problem.
+
+
+# These should be the only variables that might be needed to get edited:
+
+BEGIN {
+    # Define srcdir to the location of the tests source directory. This is
+    # usually set by the Makefile, but for out-of-tree builds with direct
+    # invocation of runtests.pl, it may not be set.
+    if(!defined $ENV{'srcdir'}) {
+        use File::Basename;
+        $ENV{'srcdir'} = dirname(__FILE__);
+    }
+    push(@INC, $ENV{'srcdir'});
+    # run time statistics needs Time::HiRes
+    eval {
+        no warnings "all";
+        require Time::HiRes;
+        import  Time::HiRes qw( time );
+    }
+}
+
+use strict;
+use warnings;
+use Cwd;
+use Digest::MD5 qw(md5);
+use MIME::Base64;
+
+# Subs imported from serverhelp module
+use serverhelp qw(
+    serverfactors
+    servername_id
+    servername_str
+    servername_canon
+    server_pidfilename
+    server_portfilename
+    server_logfilename
+    );
+
+# Variables and subs imported from sshhelp module
+use sshhelp qw(
+    $sshdexe
+    $sshexe
+    $sftpexe
+    $sshconfig
+    $sftpconfig
+    $sshdlog
+    $sshlog
+    $sftplog
+    $sftpcmds
+    display_sshdconfig
+    display_sshconfig
+    display_sftpconfig
+    display_sshdlog
+    display_sshlog
+    display_sftplog
+    exe_ext
+    find_sshd
+    find_ssh
+    find_sftp
+    find_httptlssrv
+    sshversioninfo
+    );
+
+use pathhelp;
+
+require "getpart.pm"; # array functions
+require "valgrind.pm"; # valgrind report parser
+require "ftp.pm";
+require "azure.pm";
+require "appveyor.pm";
+
+my $HOSTIP="127.0.0.1";   # address on which the test server listens
+my $HOST6IP="[::1]";      # address on which the test server listens
+my $CLIENTIP="127.0.0.1"; # address which curl uses for incoming connections
+my $CLIENT6IP="[::1]";    # address which curl uses for incoming connections
+
+my $noport="[not running]";
+
+my $NOLISTENPORT=47;     # port number we use for a local non-listening service
+my $MQTTPORT=$noport;    # MQTT server port
+my $HTTPPORT=$noport;    # HTTP server port
+my $HTTP6PORT=$noport;   # HTTP IPv6 server port
+my $HTTPSPORT=$noport;   # HTTPS (stunnel) server port
+my $HTTPSPROXYPORT = $noport; # HTTPS-proxy (stunnel) port
+my $FTPPORT=$noport;     # FTP server port
+my $FTPSPORT=$noport;    # FTPS (stunnel) server port
+my $FTP6PORT=$noport;    # FTP IPv6 server port
+my $TFTPPORT=$noport;    # TFTP
+my $TFTP6PORT=$noport;   # TFTP
+my $SSHPORT=$noport;     # SCP/SFTP
+my $SOCKSPORT=$noport;   # SOCKS4/5 port
+my $POP3PORT=$noport;    # POP3
+my $POP36PORT=$noport;   # POP3 IPv6 server port
+my $IMAPPORT=$noport;    # IMAP
+my $IMAP6PORT=$noport;   # IMAP IPv6 server port
+my $SMTPPORT=$noport;    # SMTP
+my $SMTP6PORT=$noport;   # SMTP IPv6 server port
+my $RTSPPORT=$noport;    # RTSP
+my $RTSP6PORT=$noport;   # RTSP IPv6 server port
+my $GOPHERPORT=$noport;  # Gopher
+my $GOPHERSPORT=$noport; # Gophers
+my $GOPHER6PORT=$noport; # Gopher IPv6 server port
+my $HTTPTLSPORT=$noport; # HTTP TLS (non-stunnel) server port
+my $HTTPTLS6PORT=$noport; # HTTP TLS (non-stunnel) IPv6 server port
+my $HTTPPROXYPORT=$noport; # HTTP proxy port, when using CONNECT
+my $HTTP2PORT=$noport;   # HTTP/2 server port
+my $DICTPORT=$noport;    # DICT server port
+my $SMBPORT=$noport;     # SMB server port
+my $SMBSPORT=$noport;    # SMBS server port
+my $TELNETPORT=$noport;  # TELNET server port with negotiation
+my $HTTPUNIXPATH;        # HTTP server Unix domain socket path
+my $SOCKSUNIXPATH;       # socks server Unix domain socket path
+
+my $use_external_proxy = 0;
+my $proxy_address;
+my %custom_skip_reasons;
+
+my $SSHSRVMD5 = "[uninitialized]"; # MD5 of ssh server public key
+my $SSHSRVSHA256 = "[uninitialized]"; # SHA256 of ssh server public key
+my $VERSION="";          # curl's reported version number
+
+my $srcdir = $ENV{'srcdir'} || '.';
+my $CURL="../src/curl".exe_ext('TOOL'); # what curl binary to run on the tests
+my $VCURL=$CURL;   # what curl binary to use to verify the servers with
+                   # VCURL is handy to set to the system one when the one you
+                   # just built hangs or crashes and thus prevent verification
+my $ACURL=$VCURL;  # what curl binary to use to talk to APIs (relevant for CI)
+                   # ACURL is handy to set to the system one for reliability
+my $DBGCURL=$CURL; #"../src/.libs/curl";  # alternative for debugging
+my $LOGDIR="log";
+my $TESTDIR="$srcdir/data";
+my $LIBDIR="./libtest";
+my $UNITDIR="./unit";
+# TODO: change this to use server_inputfilename()
+my $SERVERIN="$LOGDIR/server.input"; # what curl sent the server
+my $SERVER2IN="$LOGDIR/server2.input"; # what curl sent the second server
+my $PROXYIN="$LOGDIR/proxy.input"; # what curl sent the proxy
+my $SOCKSIN="$LOGDIR/socksd-request.log"; # what curl sent to the SOCKS proxy
+my $CURLLOG="commands.log"; # all command lines run
+my $FTPDCMD="$LOGDIR/ftpserver.cmd"; # copy server instructions here
+my $SERVERLOGS_LOCK="$LOGDIR/serverlogs.lock"; # server logs advisor read lock
+my $CURLCONFIG="../curl-config"; # curl-config from current build
+
+# Normally, all test cases should be run, but at times it is handy to
+# simply run a particular one:
+my $TESTCASES="all";
+
+# To run specific test cases, set them like:
+# $TESTCASES="1 2 3 7 8";
+
+#######################################################################
+# No variables below this point should need to be modified
+#
+
+# invoke perl like this:
+my $perl="perl -I$srcdir";
+my $server_response_maxtime=13;
+
+my $debug_build=0;          # built debug enabled (--enable-debug)
+my $has_memory_tracking=0;  # built with memory tracking (--enable-curldebug)
+my $libtool;
+my $repeat = 0;
+
+# name of the file that the memory debugging creates:
+my $memdump="$LOGDIR/memdump";
+
+# the path to the script that analyzes the memory debug output file:
+my $memanalyze="$perl $srcdir/memanalyze.pl";
+
+my $pwd = getcwd();          # current working directory
+my $posix_pwd = $pwd;
+
+my $start;
+my $ftpchecktime=1; # time it took to verify our test FTP server
+my $scrambleorder;
+my $stunnel = checkcmd("stunnel4") || checkcmd("tstunnel") || checkcmd("stunnel");
+my $valgrind = checktestcmd("valgrind");
+my $valgrind_logfile="--logfile";
+my $valgrind_tool;
+my $gdb = checktestcmd("gdb");
+my $httptlssrv = find_httptlssrv();
+
+my $uname_release = `uname -r`;
+my $is_wsl = $uname_release =~ /Microsoft$/;
+
+my $has_ssl;        # set if libcurl is built with SSL support
+my $has_largefile;  # set if libcurl is built with large file support
+my $has_idn;        # set if libcurl is built with IDN support
+my $http_ipv6;      # set if HTTP server has IPv6 support
+my $http_unix;      # set if HTTP server has Unix sockets support
+my $ftp_ipv6;       # set if FTP server has IPv6 support
+my $tftp_ipv6;      # set if TFTP server has IPv6 support
+my $gopher_ipv6;    # set if Gopher server has IPv6 support
+my $has_ipv6;       # set if libcurl is built with IPv6 support
+my $has_unix;       # set if libcurl is built with Unix sockets support
+my $has_libz;       # set if libcurl is built with libz support
+my $has_brotli;     # set if libcurl is built with brotli support
+my $has_zstd;       # set if libcurl is built with zstd support
+my $has_getrlimit;  # set if system has getrlimit()
+my $has_ntlm;       # set if libcurl is built with NTLM support
+my $has_ntlm_wb;    # set if libcurl is built with NTLM delegation to winbind
+my $has_sspi;       # set if libcurl is built with Windows SSPI
+my $has_gssapi;     # set if libcurl is built with a GSS-API library
+my $has_kerberos;   # set if libcurl is built with Kerberos support
+my $has_spnego;     # set if libcurl is built with SPNEGO support
+my $has_charconv;   # set if libcurl is built with CharConv support
+my $has_tls_srp;    # set if libcurl is built with TLS-SRP support
+my $has_http2;      # set if libcurl is built with HTTP2 support
+my $has_h2c;        # set if libcurl is built with h2c support
+my $has_httpsproxy; # set if libcurl is built with HTTPS-proxy support
+my $has_crypto;     # set if libcurl is built with cryptographic support
+my $has_cares;      # set if built with c-ares
+my $has_threadedres;# set if built with threaded resolver
+my $has_psl;        # set if libcurl is built with PSL support
+my $has_altsvc;     # set if libcurl is built with alt-svc support
+my $has_hsts;       # set if libcurl is built with HSTS support
+my $has_ldpreload;  # set if built for systems supporting LD_PRELOAD
+my $has_multissl;   # set if build with MultiSSL support
+my $has_manual;     # set if built with built-in manual
+my $has_win32;      # set if built for Windows
+my $has_mingw;      # set if built with MinGW (as opposed to MinGW-w64)
+my $has_hyper = 0;  # set if built with Hyper
+my $has_libssh2;    # set if built with libssh2
+my $has_libssh;     # set if built with libssh
+my $has_oldlibssh;  # set if built with libssh < 0.9.4
+my $has_wolfssh;    # set if built with wolfssh
+my $has_unicode;    # set if libcurl is built with Unicode support
+my $has_threadsafe; # set if libcurl is built with thread-safety support
+
+# this version is decided by the particular nghttp2 library that is being used
+my $h2cver = "h2c";
+
+my $has_rustls;     # built with rustls
+my $has_openssl;    # built with a lib using an OpenSSL-like API
+my $has_gnutls;     # built with GnuTLS
+my $has_nss;        # built with NSS
+my $has_wolfssl;    # built with wolfSSL
+my $has_bearssl;    # built with BearSSL
+my $has_schannel;   # built with Schannel
+my $has_sectransp;  # built with Secure Transport
+my $has_boringssl;  # built with BoringSSL
+my $has_libressl;   # built with libressl
+my $has_mbedtls;    # built with mbedTLS
+
+my $has_sslpinning; # built with a TLS backend that supports pinning
+
+my $has_shared = "unknown";  # built shared
+
+my $resolver;       # name of the resolver backend (for human presentation)
+
+my $has_textaware;  # set if running on a system that has a text mode concept
+                    # on files. Windows for example
+my @protocols;   # array of lowercase supported protocol servers
+
+my $skipped=0;  # number of tests skipped; reported in main loop
+my %skipped;    # skipped{reason}=counter, reasons for skip
+my @teststat;   # teststat[testnum]=reason, reasons for skip
+my %disabled_keywords;  # key words of tests to skip
+my %ignored_keywords;   # key words of tests to ignore results
+my %enabled_keywords;   # key words of tests to run
+my %disabled;           # disabled test cases
+my %ignored;            # ignored results of test cases
+
+my $sshdid;      # for socks server, ssh daemon version id
+my $sshdvernum;  # for socks server, ssh daemon version number
+my $sshdverstr;  # for socks server, ssh daemon version string
+my $sshderror;   # for socks server, ssh daemon version error
+
+my $defserverlogslocktimeout = 2; # timeout to await server logs lock removal
+my $defpostcommanddelay = 0; # delay between command and postcheck sections
+
+my $timestats;   # time stamping and stats generation
+my $fullstats;   # show time stats for every single test
+my %timeprepini; # timestamp for each test preparation start
+my %timesrvrini; # timestamp for each test required servers verification start
+my %timesrvrend; # timestamp for each test required servers verification end
+my %timetoolini; # timestamp for each test command run starting
+my %timetoolend; # timestamp for each test command run stopping
+my %timesrvrlog; # timestamp for each test server logs lock removal
+my %timevrfyend; # timestamp for each test result verification end
+
+my $testnumcheck; # test number, set in singletest sub.
+my %oldenv;
+my %feature;      # array of enabled features
+my %keywords;     # array of keywords from the test spec
+
+#######################################################################
+# variables that command line options may set
+#
+
+my $short;
+my $automakestyle;
+my $verbose;
+my $debugprotocol;
+my $anyway;
+my $gdbthis;      # run test case with gdb debugger
+my $gdbxwin;      # use windowed gdb when using gdb
+my $keepoutfiles; # keep stdout and stderr files after tests
+my $clearlocks;   # force removal of files by killing locking processes
+my $listonly;     # only list the tests
+my $postmortem;   # display detailed info about failed tests
+my $err_unexpected; # error instead of warning on server unexpectedly alive
+my $run_event_based; # run curl with --test-event to test the event API
+my $run_disabeled; # run the specific tests even if listed in DISABLED
+
+my %run;          # running server
+my %doesntrun;    # servers that don't work, identified by pidfile
+my %serverpidfile;# all server pid file names, identified by server id
+my %serverportfile;# all server port file names, identified by server id
+my %runcert;      # cert file currently in use by an ssl running server
+
+# torture test variables
+my $torture;
+my $tortnum;
+my $tortalloc;
+my $shallow;
+my $randseed = 0;
+
+# Azure Pipelines specific variables
+my $AZURE_RUN_ID = 0;
+my $AZURE_RESULT_ID = 0;
+
+#######################################################################
+# logmsg is our general message logging subroutine.
+#
+sub logmsg {
+    for(@_) {
+        my $line = $_;
+        if ($is_wsl) {
+            # use \r\n for WSL shell
+            $line =~ s/\r?\n$/\r\n/g;
+        }
+        print "$line";
+    }
+}
+
+# get the name of the current user
+my $USER = $ENV{USER};          # Linux
+if (!$USER) {
+    $USER = $ENV{USERNAME};     # Windows
+    if (!$USER) {
+        $USER = $ENV{LOGNAME};  # Some Unix (I think)
+    }
+}
+
+# enable memory debugging if curl is compiled with it
+$ENV{'CURL_MEMDEBUG'} = $memdump;
+$ENV{'CURL_ENTROPY'}="12345678";
+$ENV{'CURL_FORCETIME'}=1; # for debug NTLM magic
+$ENV{'CURL_GLOBAL_INIT'}=1; # debug curl_global_init/cleanup use
+$ENV{'HOME'}=$pwd;
+$ENV{'CURL_HOME'}=$ENV{'HOME'};
+$ENV{'XDG_CONFIG_HOME'}=$ENV{'HOME'};
+$ENV{'COLUMNS'}=79; # screen width!
+
+sub catch_zap {
+    my $signame = shift;
+    logmsg "runtests.pl received SIG$signame, exiting\n";
+    stopservers($verbose);
+    die "Somebody sent me a SIG$signame";
+}
+$SIG{INT} = \&catch_zap;
+$SIG{TERM} = \&catch_zap;
+
+##########################################################################
+# Clear all possible '*_proxy' environment variables for various protocols
+# to prevent them to interfere with our testing!
+
+my $protocol;
+foreach $protocol (('ftp', 'http', 'ftps', 'https', 'no', 'all')) {
+    my $proxy = "${protocol}_proxy";
+    # clear lowercase version
+    delete $ENV{$proxy} if($ENV{$proxy});
+    # clear uppercase version
+    delete $ENV{uc($proxy)} if($ENV{uc($proxy)});
+}
+
+# make sure we don't get affected by other variables that control our
+# behavior
+
+delete $ENV{'SSL_CERT_DIR'} if($ENV{'SSL_CERT_DIR'});
+delete $ENV{'SSL_CERT_PATH'} if($ENV{'SSL_CERT_PATH'});
+delete $ENV{'DEBUGINFOD_URLS'} if($ENV{'DEBUGINFOD_URLS'});
+delete $ENV{'CURL_CA_BUNDLE'} if($ENV{'CURL_CA_BUNDLE'});
+
+#######################################################################
+# Load serverpidfile and serverportfile hashes with file names for all
+# possible servers.
+#
+sub init_serverpidfile_hash {
+  for my $proto (('ftp', 'gopher', 'http', 'imap', 'pop3', 'smtp', 'http/2')) {
+    for my $ssl (('', 's')) {
+      for my $ipvnum ((4, 6)) {
+        for my $idnum ((1, 2, 3)) {
+          my $serv = servername_id("$proto$ssl", $ipvnum, $idnum);
+          my $pidf = server_pidfilename("$proto$ssl", $ipvnum, $idnum);
+          $serverpidfile{$serv} = $pidf;
+          my $portf = server_portfilename("$proto$ssl", $ipvnum, $idnum);
+          $serverportfile{$serv} = $portf;
+        }
+      }
+    }
+  }
+  for my $proto (('tftp', 'sftp', 'socks', 'ssh', 'rtsp', 'httptls',
+                  'dict', 'smb', 'smbs', 'telnet', 'mqtt')) {
+    for my $ipvnum ((4, 6)) {
+      for my $idnum ((1, 2)) {
+        my $serv = servername_id($proto, $ipvnum, $idnum);
+        my $pidf = server_pidfilename($proto, $ipvnum, $idnum);
+        $serverpidfile{$serv} = $pidf;
+        my $portf = server_portfilename($proto, $ipvnum, $idnum);
+        $serverportfile{$serv} = $portf;
+      }
+    }
+  }
+  for my $proto (('http', 'imap', 'pop3', 'smtp', 'http/2')) {
+    for my $ssl (('', 's')) {
+      my $serv = servername_id("$proto$ssl", "unix", 1);
+      my $pidf = server_pidfilename("$proto$ssl", "unix", 1);
+      $serverpidfile{$serv} = $pidf;
+      my $portf = server_portfilename("$proto$ssl", "unix", 1);
+      $serverportfile{$serv} = $portf;
+    }
+  }
+}
+
+#######################################################################
+# Check if a given child process has just died. Reaps it if so.
+#
+sub checkdied {
+    use POSIX ":sys_wait_h";
+    my $pid = $_[0];
+    if((not defined $pid) || $pid <= 0) {
+        return 0;
+    }
+    my $rc = pidwait($pid, &WNOHANG);
+    return ($rc == $pid)?1:0;
+}
+
+#######################################################################
+# Start a new thread/process and run the given command line in there.
+# Return the pids (yes plural) of the new child process to the parent.
+#
+sub startnew {
+    my ($cmd, $pidfile, $timeout, $fake)=@_;
+
+    logmsg "startnew: $cmd\n" if ($verbose);
+
+    my $child = fork();
+    my $pid2 = 0;
+
+    if(not defined $child) {
+        logmsg "startnew: fork() failure detected\n";
+        return (-1,-1);
+    }
+
+    if(0 == $child) {
+        # Here we are the child. Run the given command.
+
+        # Flush output.
+        $| = 1;
+
+        # Put an "exec" in front of the command so that the child process
+        # keeps this child's process ID.
+        exec("exec $cmd") || die "Can't exec() $cmd: $!";
+
+        # exec() should never return back here to this process. We protect
+        # ourselves by calling die() just in case something goes really bad.
+        die "error: exec() has returned";
+    }
+
+    # Ugly hack but ssh client and gnutls-serv don't support pid files
+    if ($fake) {
+        if(open(OUT, ">$pidfile")) {
+            print OUT $child . "\n";
+            close(OUT);
+            logmsg "startnew: $pidfile faked with pid=$child\n" if($verbose);
+        }
+        else {
+            logmsg "startnew: failed to write fake $pidfile with pid=$child\n";
+        }
+        # could/should do a while connect fails sleep a bit and loop
+        portable_sleep($timeout);
+        if (checkdied($child)) {
+            logmsg "startnew: child process has failed to start\n" if($verbose);
+            return (-1,-1);
+        }
+    }
+
+    my $count = $timeout;
+    while($count--) {
+        if(-f $pidfile && -s $pidfile && open(PID, "<$pidfile")) {
+            $pid2 = 0 + <PID>;
+            close(PID);
+            if(($pid2 > 0) && pidexists($pid2)) {
+                # if $pid2 is valid, then make sure this pid is alive, as
+                # otherwise it is just likely to be the _previous_ pidfile or
+                # similar!
+                last;
+            }
+            # invalidate $pid2 if not actually alive
+            $pid2 = 0;
+        }
+        if (checkdied($child)) {
+            logmsg "startnew: child process has died, server might start up\n"
+                if($verbose);
+            # We can't just abort waiting for the server with a
+            # return (-1,-1);
+            # because the server might have forked and could still start
+            # up normally. Instead, just reduce the amount of time we remain
+            # waiting.
+            $count >>= 2;
+        }
+        sleep(1);
+    }
+
+    # Return two PIDs, the one for the child process we spawned and the one
+    # reported by the server itself (in case it forked again on its own).
+    # Both (potentially) need to be killed at the end of the test.
+    return ($child, $pid2);
+}
+
+
+#######################################################################
+# Check for a command in the PATH of the test server.
+#
+sub checkcmd {
+    my ($cmd)=@_;
+    my @paths=(split(":", $ENV{'PATH'}), "/usr/sbin", "/usr/local/sbin",
+               "/sbin", "/usr/bin", "/usr/local/bin",
+               "$LIBDIR/.libs", "$LIBDIR");
+    for(@paths) {
+        if( -x "$_/$cmd" && ! -d "$_/$cmd") {
+            # executable bit but not a directory!
+            return "$_/$cmd";
+        }
+    }
+}
+
+#######################################################################
+# Get the list of tests that the tests/data/Makefile.am knows about!
+#
+my $disttests = "";
+sub get_disttests {
+    # If a non-default $TESTDIR is being used there may not be any
+    # Makefile.inc in which case there's nothing to do.
+    open(D, "<$TESTDIR/Makefile.inc") or return;
+    while(<D>) {
+        chomp $_;
+        if(($_ =~ /^#/) ||($_ !~ /test/)) {
+            next;
+        }
+        $disttests .= $_;
+    }
+    close(D);
+}
+
+#######################################################################
+# Check for a command in the PATH of the machine running curl.
+#
+sub checktestcmd {
+    my ($cmd)=@_;
+    return checkcmd($cmd);
+}
+
+#######################################################################
+# Run the application under test and return its return code
+#
+sub runclient {
+    my ($cmd)=@_;
+    my $ret = system($cmd);
+    print "CMD ($ret): $cmd\n" if($verbose && !$torture);
+    return $ret;
+
+# This is one way to test curl on a remote machine
+#    my $out = system("ssh $CLIENTIP cd \'$pwd\' \\; \'$cmd\'");
+#    sleep 2;    # time to allow the NFS server to be updated
+#    return $out;
+}
+
+#######################################################################
+# Run the application under test and return its stdout
+#
+sub runclientoutput {
+    my ($cmd)=@_;
+    return `$cmd`;
+
+# This is one way to test curl on a remote machine
+#    my @out = `ssh $CLIENTIP cd \'$pwd\' \\; \'$cmd\'`;
+#    sleep 2;    # time to allow the NFS server to be updated
+#    return @out;
+ }
+
+#######################################################################
+# Memory allocation test and failure torture testing.
+#
+sub torture {
+    my ($testcmd, $testnum, $gdbline) = @_;
+
+    # remove memdump first to be sure we get a new nice and clean one
+    unlink($memdump);
+
+    # First get URL from test server, ignore the output/result
+    runclient($testcmd);
+
+    logmsg " CMD: $testcmd\n" if($verbose);
+
+    # memanalyze -v is our friend, get the number of allocations made
+    my $count=0;
+    my @out = `$memanalyze -v $memdump`;
+    for(@out) {
+        if(/^Operations: (\d+)/) {
+            $count = $1;
+            last;
+        }
+    }
+    if(!$count) {
+        logmsg " found no functions to make fail\n";
+        return 0;
+    }
+
+    my @ttests = (1 .. $count);
+    if($shallow && ($shallow < $count)) {
+        my $discard = scalar(@ttests) - $shallow;
+        my $percent = sprintf("%.2f%%", $shallow * 100 / scalar(@ttests));
+        logmsg " $count functions found, but only fail $shallow ($percent)\n";
+        while($discard) {
+            my $rm;
+            do {
+                # find a test to discard
+                $rm = rand(scalar(@ttests));
+            } while(!$ttests[$rm]);
+            $ttests[$rm] = undef;
+            $discard--;
+        }
+    }
+    else {
+        logmsg " $count functions to make fail\n";
+    }
+
+    for (@ttests) {
+        my $limit = $_;
+        my $fail;
+        my $dumped_core;
+
+        if(!defined($limit)) {
+            # --shallow can undefine them
+            next;
+        }
+        if($tortalloc && ($tortalloc != $limit)) {
+            next;
+        }
+
+        if($verbose) {
+            my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
+                localtime(time());
+            my $now = sprintf("%02d:%02d:%02d ", $hour, $min, $sec);
+            logmsg "Fail function no: $limit at $now\r";
+        }
+
+        # make the memory allocation function number $limit return failure
+        $ENV{'CURL_MEMLIMIT'} = $limit;
+
+        # remove memdump first to be sure we get a new nice and clean one
+        unlink($memdump);
+
+        my $cmd = $testcmd;
+        if($valgrind && !$gdbthis) {
+            my @valgrindoption = getpart("verify", "valgrind");
+            if((!@valgrindoption) || ($valgrindoption[0] !~ /disable/)) {
+                my $valgrindcmd = "$valgrind ";
+                $valgrindcmd .= "$valgrind_tool " if($valgrind_tool);
+                $valgrindcmd .= "--quiet --leak-check=yes ";
+                $valgrindcmd .= "--suppressions=$srcdir/valgrind.supp ";
+                # $valgrindcmd .= "--gen-suppressions=all ";
+                $valgrindcmd .= "--num-callers=16 ";
+                $valgrindcmd .= "${valgrind_logfile}=$LOGDIR/valgrind$testnum";
+                $cmd = "$valgrindcmd $testcmd";
+            }
+        }
+        logmsg "*** Function number $limit is now set to fail ***\n" if($gdbthis);
+
+        my $ret = 0;
+        if($gdbthis) {
+            runclient($gdbline);
+        }
+        else {
+            $ret = runclient($cmd);
+        }
+        #logmsg "$_ Returned " . ($ret >> 8) . "\n";
+
+        # Now clear the variable again
+        delete $ENV{'CURL_MEMLIMIT'} if($ENV{'CURL_MEMLIMIT'});
+
+        if(-r "core") {
+            # there's core file present now!
+            logmsg " core dumped\n";
+            $dumped_core = 1;
+            $fail = 2;
+        }
+
+        if($valgrind) {
+            my @e = valgrindparse("$LOGDIR/valgrind$testnum");
+            if(@e && $e[0]) {
+                if($automakestyle) {
+                    logmsg "FAIL: torture $testnum - valgrind\n";
+                }
+                else {
+                    logmsg " valgrind ERROR ";
+                    logmsg @e;
+                }
+                $fail = 1;
+            }
+        }
+
+        # verify that it returns a proper error code, doesn't leak memory
+        # and doesn't core dump
+        if(($ret & 255) || ($ret >> 8) >= 128) {
+            logmsg " system() returned $ret\n";
+            $fail=1;
+        }
+        else {
+            my @memdata=`$memanalyze $memdump`;
+            my $leak=0;
+            for(@memdata) {
+                if($_ ne "") {
+                    # well it could be other memory problems as well, but
+                    # we call it leak for short here
+                    $leak=1;
+                }
+            }
+            if($leak) {
+                logmsg "** MEMORY FAILURE\n";
+                logmsg @memdata;
+                logmsg `$memanalyze -l $memdump`;
+                $fail = 1;
+            }
+        }
+        if($fail) {
+            logmsg " Failed on function number $limit in test.\n",
+            " invoke with \"-t$limit\" to repeat this single case.\n";
+            stopservers($verbose);
+            return 1;
+        }
+    }
+
+    logmsg "torture OK\n";
+    return 0;
+}
+
+#######################################################################
+# Stop a test server along with pids which aren't in the %run hash yet.
+# This also stops all servers which are relative to the given one.
+#
+sub stopserver {
+    my ($server, $pidlist) = @_;
+
+    #
+    # kill sockfilter processes for pingpong relative server
+    #
+    if($server =~ /^(ftp|imap|pop3|smtp)s?(\d*)(-ipv6|)$/) {
+        my $proto  = $1;
+        my $idnum  = ($2 && ($2 > 1)) ? $2 : 1;
+        my $ipvnum = ($3 && ($3 =~ /6$/)) ? 6 : 4;
+        killsockfilters($proto, $ipvnum, $idnum, $verbose);
+    }
+    #
+    # All servers relative to the given one must be stopped also
+    #
+    my @killservers;
+    if($server =~ /^(ftp|http|imap|pop3|smtp)s((\d*)(-ipv6|-unix|))$/) {
+        # given a stunnel based ssl server, also kill non-ssl underlying one
+        push @killservers, "${1}${2}";
+    }
+    elsif($server =~ /^(ftp|http|imap|pop3|smtp)((\d*)(-ipv6|-unix|))$/) {
+        # given a non-ssl server, also kill stunnel based ssl piggybacking one
+        push @killservers, "${1}s${2}";
+    }
+    elsif($server =~ /^(socks)((\d*)(-ipv6|))$/) {
+        # given a socks server, also kill ssh underlying one
+        push @killservers, "ssh${2}";
+    }
+    elsif($server =~ /^(ssh)((\d*)(-ipv6|))$/) {
+        # given a ssh server, also kill socks piggybacking one
+        push @killservers, "socks${2}";
+    }
+    if($server eq "http") {
+        # since the http2 server is a proxy that needs to know about the
+        # dynamic http port it too needs to get restarted when the http server
+        # is killed
+        push @killservers, "http/2";
+    }
+    push @killservers, $server;
+    #
+    # kill given pids and server relative ones clearing them in %run hash
+    #
+    foreach my $server (@killservers) {
+        if($run{$server}) {
+            # we must prepend a space since $pidlist may already contain a pid
+            $pidlist .= " $run{$server}";
+            $run{$server} = 0;
+        }
+        $runcert{$server} = 0 if($runcert{$server});
+    }
+    killpid($verbose, $pidlist);
+    #
+    # cleanup server pid files
+    #
+    my $result = 0;
+    foreach my $server (@killservers) {
+        my $pidfile = $serverpidfile{$server};
+        my $pid = processexists($pidfile);
+        if($pid > 0) {
+            if($err_unexpected) {
+                logmsg "ERROR: ";
+                $result = -1;
+            }
+            else {
+                logmsg "Warning: ";
+            }
+            logmsg "$server server unexpectedly alive\n";
+            killpid($verbose, $pid);
+        }
+        unlink($pidfile) if(-f $pidfile);
+    }
+
+    return $result;
+}
+
+#######################################################################
+# Return flags to let curl use an external HTTP proxy
+#
+sub getexternalproxyflags {
+    return " --proxy $proxy_address ";
+}
+
+#######################################################################
+# Verify that the server that runs on $ip, $port is our server.  This also
+# implies that we can speak with it, as there might be occasions when the
+# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
+# assign requested address")
+#
+sub verifyhttp {
+    my ($proto, $ipvnum, $idnum, $ip, $port_or_path) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pid = 0;
+    my $bonus="";
+    # $port_or_path contains a path for Unix sockets, sws ignores the port
+    my $port = ($ipvnum eq "unix") ? 80 : $port_or_path;
+
+    my $verifyout = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.out';
+    unlink($verifyout) if(-f $verifyout);
+
+    my $verifylog = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
+    unlink($verifylog) if(-f $verifylog);
+
+    if($proto eq "gopher") {
+        # gopher is funny
+        $bonus="1/";
+    }
+
+    my $flags = "--max-time $server_response_maxtime ";
+    $flags .= "--output $verifyout ";
+    $flags .= "--silent ";
+    $flags .= "--verbose ";
+    $flags .= "--globoff ";
+    $flags .= "--unix-socket '$port_or_path' " if $ipvnum eq "unix";
+    $flags .= "--insecure " if($proto eq 'https');
+    if($use_external_proxy) {
+        $flags .= getexternalproxyflags();
+    }
+    $flags .= "\"$proto://$ip:$port/${bonus}verifiedserver\"";
+
+    my $cmd = "$VCURL $flags 2>$verifylog";
+
+    # verify if our/any server is running on this port
+    logmsg "RUN: $cmd\n" if($verbose);
+    my $res = runclient($cmd);
+
+    $res >>= 8; # rotate the result
+    if($res & 128) {
+        logmsg "RUN: curl command died with a coredump\n";
+        return -1;
+    }
+
+    if($res && $verbose) {
+        logmsg "RUN: curl command returned $res\n";
+        if(open(FILE, "<$verifylog")) {
+            while(my $string = <FILE>) {
+                logmsg "RUN: $string" if($string !~ /^([ \t]*)$/);
+            }
+            close(FILE);
+        }
+    }
+
+    my $data;
+    if(open(FILE, "<$verifyout")) {
+        while(my $string = <FILE>) {
+            $data = $string;
+            last; # only want first line
+        }
+        close(FILE);
+    }
+
+    if($data && ($data =~ /WE ROOLZ: (\d+)/)) {
+        $pid = 0+$1;
+    }
+    elsif($res == 6) {
+        # curl: (6) Couldn't resolve host '::1'
+        logmsg "RUN: failed to resolve host ($proto://$ip:$port/verifiedserver)\n";
+        return -1;
+    }
+    elsif($data || ($res && ($res != 7))) {
+        logmsg "RUN: Unknown server on our $server port: $port ($res)\n";
+        return -1;
+    }
+    return $pid;
+}
+
+#######################################################################
+# Verify that the server that runs on $ip, $port is our server.  This also
+# implies that we can speak with it, as there might be occasions when the
+# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
+# assign requested address")
+#
+sub verifyftp {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pid = 0;
+    my $time=time();
+    my $extra="";
+
+    my $verifylog = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
+    unlink($verifylog) if(-f $verifylog);
+
+    if($proto eq "ftps") {
+        $extra .= "--insecure --ftp-ssl-control ";
+    }
+
+    my $flags = "--max-time $server_response_maxtime ";
+    $flags .= "--silent ";
+    $flags .= "--verbose ";
+    $flags .= "--globoff ";
+    $flags .= $extra;
+    if($use_external_proxy) {
+        $flags .= getexternalproxyflags();
+    }
+    $flags .= "\"$proto://$ip:$port/verifiedserver\"";
+
+    my $cmd = "$VCURL $flags 2>$verifylog";
+
+    # check if this is our server running on this port:
+    logmsg "RUN: $cmd\n" if($verbose);
+    my @data = runclientoutput($cmd);
+
+    my $res = $? >> 8; # rotate the result
+    if($res & 128) {
+        logmsg "RUN: curl command died with a coredump\n";
+        return -1;
+    }
+
+    foreach my $line (@data) {
+        if($line =~ /WE ROOLZ: (\d+)/) {
+            # this is our test server with a known pid!
+            $pid = 0+$1;
+            last;
+        }
+    }
+    if($pid <= 0 && @data && $data[0]) {
+        # this is not a known server
+        logmsg "RUN: Unknown server on our $server port: $port\n";
+        return 0;
+    }
+    # we can/should use the time it took to verify the FTP server as a measure
+    # on how fast/slow this host/FTP is.
+    my $took = int(0.5+time()-$time);
+
+    if($verbose) {
+        logmsg "RUN: Verifying our test $server server took $took seconds\n";
+    }
+    $ftpchecktime = $took>=1?$took:1; # make sure it never is below 1
+
+    return $pid;
+}
+
+#######################################################################
+# Verify that the server that runs on $ip, $port is our server.  This also
+# implies that we can speak with it, as there might be occasions when the
+# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
+# assign requested address")
+#
+sub verifyrtsp {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pid = 0;
+
+    my $verifyout = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.out';
+    unlink($verifyout) if(-f $verifyout);
+
+    my $verifylog = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
+    unlink($verifylog) if(-f $verifylog);
+
+    my $flags = "--max-time $server_response_maxtime ";
+    $flags .= "--output $verifyout ";
+    $flags .= "--silent ";
+    $flags .= "--verbose ";
+    $flags .= "--globoff ";
+    if($use_external_proxy) {
+        $flags .= getexternalproxyflags();
+    }
+    # currently verification is done using http
+    $flags .= "\"http://$ip:$port/verifiedserver\"";
+
+    my $cmd = "$VCURL $flags 2>$verifylog";
+
+    # verify if our/any server is running on this port
+    logmsg "RUN: $cmd\n" if($verbose);
+    my $res = runclient($cmd);
+
+    $res >>= 8; # rotate the result
+    if($res & 128) {
+        logmsg "RUN: curl command died with a coredump\n";
+        return -1;
+    }
+
+    if($res && $verbose) {
+        logmsg "RUN: curl command returned $res\n";
+        if(open(FILE, "<$verifylog")) {
+            while(my $string = <FILE>) {
+                logmsg "RUN: $string" if($string !~ /^([ \t]*)$/);
+            }
+            close(FILE);
+        }
+    }
+
+    my $data;
+    if(open(FILE, "<$verifyout")) {
+        while(my $string = <FILE>) {
+            $data = $string;
+            last; # only want first line
+        }
+        close(FILE);
+    }
+
+    if($data && ($data =~ /RTSP_SERVER WE ROOLZ: (\d+)/)) {
+        $pid = 0+$1;
+    }
+    elsif($res == 6) {
+        # curl: (6) Couldn't resolve host '::1'
+        logmsg "RUN: failed to resolve host ($proto://$ip:$port/verifiedserver)\n";
+        return -1;
+    }
+    elsif($data || ($res != 7)) {
+        logmsg "RUN: Unknown server on our $server port: $port\n";
+        return -1;
+    }
+    return $pid;
+}
+
+#######################################################################
+# Verify that the ssh server has written out its pidfile, recovering
+# the pid from the file and returning it if a process with that pid is
+# actually alive.
+#
+sub verifyssh {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pidfile = server_pidfilename($proto, $ipvnum, $idnum);
+    my $pid = 0;
+    if(open(FILE, "<$pidfile")) {
+        $pid=0+<FILE>;
+        close(FILE);
+    }
+    if($pid > 0) {
+        # if we have a pid it is actually our ssh server,
+        # since runsshserver() unlinks previous pidfile
+        if(!pidexists($pid)) {
+            logmsg "RUN: SSH server has died after starting up\n";
+            checkdied($pid);
+            unlink($pidfile);
+            $pid = -1;
+        }
+    }
+    return $pid;
+}
+
+#######################################################################
+# Verify that we can connect to the sftp server, properly authenticate
+# with generated config and key files and run a simple remote pwd.
+#
+sub verifysftp {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $verified = 0;
+    # Find out sftp client canonical file name
+    my $sftp = find_sftp();
+    if(!$sftp) {
+        logmsg "RUN: SFTP server cannot find $sftpexe\n";
+        return -1;
+    }
+    # Find out ssh client canonical file name
+    my $ssh = find_ssh();
+    if(!$ssh) {
+        logmsg "RUN: SFTP server cannot find $sshexe\n";
+        return -1;
+    }
+    # Connect to sftp server, authenticate and run a remote pwd
+    # command using our generated configuration and key files
+    my $cmd = "\"$sftp\" -b $sftpcmds -F $sftpconfig -S \"$ssh\" $ip > $sftplog 2>&1";
+    my $res = runclient($cmd);
+    # Search for pwd command response in log file
+    if(open(SFTPLOGFILE, "<$sftplog")) {
+        while(<SFTPLOGFILE>) {
+            if(/^Remote working directory: /) {
+                $verified = 1;
+                last;
+            }
+        }
+        close(SFTPLOGFILE);
+    }
+    return $verified;
+}
+
+#######################################################################
+# Verify that the non-stunnel HTTP TLS extensions capable server that runs
+# on $ip, $port is our server.  This also implies that we can speak with it,
+# as there might be occasions when the server runs fine but we cannot talk
+# to it ("Failed to connect to ::1: Can't assign requested address")
+#
+sub verifyhttptls {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pidfile = server_pidfilename($proto, $ipvnum, $idnum);
+    my $pid = 0;
+
+    my $verifyout = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.out';
+    unlink($verifyout) if(-f $verifyout);
+
+    my $verifylog = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
+    unlink($verifylog) if(-f $verifylog);
+
+    my $flags = "--max-time $server_response_maxtime ";
+    $flags .= "--output $verifyout ";
+    $flags .= "--verbose ";
+    $flags .= "--globoff ";
+    $flags .= "--insecure ";
+    $flags .= "--tlsauthtype SRP ";
+    $flags .= "--tlsuser jsmith ";
+    $flags .= "--tlspassword abc ";
+    if($use_external_proxy) {
+        $flags .= getexternalproxyflags();
+    }
+    $flags .= "\"https://$ip:$port/verifiedserver\"";
+
+    my $cmd = "$VCURL $flags 2>$verifylog";
+
+    # verify if our/any server is running on this port
+    logmsg "RUN: $cmd\n" if($verbose);
+    my $res = runclient($cmd);
+
+    $res >>= 8; # rotate the result
+    if($res & 128) {
+        logmsg "RUN: curl command died with a coredump\n";
+        return -1;
+    }
+
+    if($res && $verbose) {
+        logmsg "RUN: curl command returned $res\n";
+        if(open(FILE, "<$verifylog")) {
+            while(my $string = <FILE>) {
+                logmsg "RUN: $string" if($string !~ /^([ \t]*)$/);
+            }
+            close(FILE);
+        }
+    }
+
+    my $data;
+    if(open(FILE, "<$verifyout")) {
+        while(my $string = <FILE>) {
+            $data .= $string;
+        }
+        close(FILE);
+    }
+
+    if($data && ($data =~ /(GNUTLS|GnuTLS)/) && open(FILE, "<$pidfile")) {
+        $pid=0+<FILE>;
+        close(FILE);
+        if($pid > 0) {
+            # if we have a pid it is actually our httptls server,
+            # since runhttptlsserver() unlinks previous pidfile
+            if(!pidexists($pid)) {
+                logmsg "RUN: $server server has died after starting up\n";
+                checkdied($pid);
+                unlink($pidfile);
+                $pid = -1;
+            }
+        }
+        return $pid;
+    }
+    elsif($res == 6) {
+        # curl: (6) Couldn't resolve host '::1'
+        logmsg "RUN: failed to resolve host (https://$ip:$port/verifiedserver)\n";
+        return -1;
+    }
+    elsif($data || ($res && ($res != 7))) {
+        logmsg "RUN: Unknown server on our $server port: $port ($res)\n";
+        return -1;
+    }
+    return $pid;
+}
+
+#######################################################################
+# STUB for verifying socks
+#
+sub verifysocks {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pidfile = server_pidfilename($proto, $ipvnum, $idnum);
+    my $pid = 0;
+    if(open(FILE, "<$pidfile")) {
+        $pid=0+<FILE>;
+        close(FILE);
+    }
+    if($pid > 0) {
+        # if we have a pid it is actually our socks server,
+        # since runsocksserver() unlinks previous pidfile
+        if(!pidexists($pid)) {
+            logmsg "RUN: SOCKS server has died after starting up\n";
+            checkdied($pid);
+            unlink($pidfile);
+            $pid = -1;
+        }
+    }
+    return $pid;
+}
+
+#######################################################################
+# Verify that the server that runs on $ip, $port is our server.  This also
+# implies that we can speak with it, as there might be occasions when the
+# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
+# assign requested address")
+#
+sub verifysmb {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pid = 0;
+    my $time=time();
+    my $extra="";
+
+    my $verifylog = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
+    unlink($verifylog) if(-f $verifylog);
+
+    my $flags = "--max-time $server_response_maxtime ";
+    $flags .= "--silent ";
+    $flags .= "--verbose ";
+    $flags .= "--globoff ";
+    $flags .= "-u 'curltest:curltest' ";
+    $flags .= $extra;
+    $flags .= "\"$proto://$ip:$port/SERVER/verifiedserver\"";
+
+    my $cmd = "$VCURL $flags 2>$verifylog";
+
+    # check if this is our server running on this port:
+    logmsg "RUN: $cmd\n" if($verbose);
+    my @data = runclientoutput($cmd);
+
+    my $res = $? >> 8; # rotate the result
+    if($res & 128) {
+        logmsg "RUN: curl command died with a coredump\n";
+        return -1;
+    }
+
+    foreach my $line (@data) {
+        if($line =~ /WE ROOLZ: (\d+)/) {
+            # this is our test server with a known pid!
+            $pid = 0+$1;
+            last;
+        }
+    }
+    if($pid <= 0 && @data && $data[0]) {
+        # this is not a known server
+        logmsg "RUN: Unknown server on our $server port: $port\n";
+        return 0;
+    }
+    # we can/should use the time it took to verify the server as a measure
+    # on how fast/slow this host is.
+    my $took = int(0.5+time()-$time);
+
+    if($verbose) {
+        logmsg "RUN: Verifying our test $server server took $took seconds\n";
+    }
+    $ftpchecktime = $took>=1?$took:1; # make sure it never is below 1
+
+    return $pid;
+}
+
+#######################################################################
+# Verify that the server that runs on $ip, $port is our server.  This also
+# implies that we can speak with it, as there might be occasions when the
+# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
+# assign requested address")
+#
+sub verifytelnet {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $server = servername_id($proto, $ipvnum, $idnum);
+    my $pid = 0;
+    my $time=time();
+    my $extra="";
+
+    my $verifylog = "$LOGDIR/".
+        servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
+    unlink($verifylog) if(-f $verifylog);
+
+    my $flags = "--max-time $server_response_maxtime ";
+    $flags .= "--silent ";
+    $flags .= "--verbose ";
+    $flags .= "--globoff ";
+    $flags .= "--upload-file - ";
+    $flags .= $extra;
+    $flags .= "\"$proto://$ip:$port\"";
+
+    my $cmd = "echo 'verifiedserver' | $VCURL $flags 2>$verifylog";
+
+    # check if this is our server running on this port:
+    logmsg "RUN: $cmd\n" if($verbose);
+    my @data = runclientoutput($cmd);
+
+    my $res = $? >> 8; # rotate the result
+    if($res & 128) {
+        logmsg "RUN: curl command died with a coredump\n";
+        return -1;
+    }
+
+    foreach my $line (@data) {
+        if($line =~ /WE ROOLZ: (\d+)/) {
+            # this is our test server with a known pid!
+            $pid = 0+$1;
+            last;
+        }
+    }
+    if($pid <= 0 && @data && $data[0]) {
+        # this is not a known server
+        logmsg "RUN: Unknown server on our $server port: $port\n";
+        return 0;
+    }
+    # we can/should use the time it took to verify the server as a measure
+    # on how fast/slow this host is.
+    my $took = int(0.5+time()-$time);
+
+    if($verbose) {
+        logmsg "RUN: Verifying our test $server server took $took seconds\n";
+    }
+
+    return $pid;
+}
+
+
+#######################################################################
+# Verify that the server that runs on $ip, $port is our server.
+# Retry over several seconds before giving up.  The ssh server in
+# particular can take a long time to start if it needs to generate
+# keys on a slow or loaded host.
+#
+# Just for convenience, test harness uses 'https' and 'httptls' literals
+# as values for 'proto' variable in order to differentiate different
+# servers. 'https' literal is used for stunnel based https test servers,
+# and 'httptls' is used for non-stunnel https test servers.
+#
+
+my %protofunc = ('http' => \&verifyhttp,
+                 'https' => \&verifyhttp,
+                 'rtsp' => \&verifyrtsp,
+                 'ftp' => \&verifyftp,
+                 'pop3' => \&verifyftp,
+                 'imap' => \&verifyftp,
+                 'smtp' => \&verifyftp,
+                 'ftps' => \&verifyftp,
+                 'tftp' => \&verifyftp,
+                 'ssh' => \&verifyssh,
+                 'socks' => \&verifysocks,
+                 'socks5unix' => \&verifysocks,
+                 'gopher' => \&verifyhttp,
+                 'httptls' => \&verifyhttptls,
+                 'dict' => \&verifyftp,
+                 'smb' => \&verifysmb,
+                 'telnet' => \&verifytelnet);
+
+sub verifyserver {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+
+    my $count = 30; # try for this many seconds
+    my $pid;
+
+    while($count--) {
+        my $fun = $protofunc{$proto};
+
+        $pid = &$fun($proto, $ipvnum, $idnum, $ip, $port);
+
+        if($pid > 0) {
+            last;
+        }
+        elsif($pid < 0) {
+            # a real failure, stop trying and bail out
+            return 0;
+        }
+        sleep(1);
+    }
+    return $pid;
+}
+
+#######################################################################
+# Single shot server responsiveness test. This should only be used
+# to verify that a server present in %run hash is still functional
+#
+sub responsiveserver {
+    my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
+    my $prev_verbose = $verbose;
+
+    $verbose = 0;
+    my $fun = $protofunc{$proto};
+    my $pid = &$fun($proto, $ipvnum, $idnum, $ip, $port);
+    $verbose = $prev_verbose;
+
+    if($pid > 0) {
+        return 1; # responsive
+    }
+
+    my $srvrname = servername_str($proto, $ipvnum, $idnum);
+    logmsg " server precheck FAILED (unresponsive $srvrname server)\n";
+    return 0;
+}
+
+#######################################################################
+# start the http2 server
+#
+sub runhttp2server {
+    my ($verbose) = @_;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+    my $proto="http/2";
+    my $ipvnum = 4;
+    my $idnum = 0;
+    my $exe = "$perl $srcdir/http2-server.pl";
+    my $verbose_flag = "--verbose ";
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--connect $HOSTIP:$HTTPPORT ";
+    $flags .= $verbose_flag if($debugprotocol);
+
+    my ($http2pid, $pid2);
+    my $port = 23113;
+    for(1 .. 10) {
+        $port += int(rand(900));
+        my $aflags = "--port $port $flags";
+
+        my $cmd = "$exe $aflags";
+        ($http2pid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+        if($http2pid <= 0 || !pidexists($http2pid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            $doesntrun{$pidfile} = 1;
+            $http2pid = $pid2 = 0;
+            next;
+        }
+        $doesntrun{$pidfile} = 0;
+
+        if($verbose) {
+            logmsg "RUN: $srvrname server PID $http2pid port $port\n";
+        }
+        last;
+    }
+
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$http2pid);
+
+    return ($http2pid, $pid2, $port);
+}
+
+#######################################################################
+# start the http server
+#
+sub runhttpserver {
+    my ($proto, $verbose, $alt, $port_or_path) = @_;
+    my $ip = $HOSTIP;
+    my $ipvnum = 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+    my $exe = "$perl $srcdir/httpserver.pl";
+    my $verbose_flag = "--verbose ";
+
+    if($alt eq "ipv6") {
+        # if IPv6, use a different setup
+        $ipvnum = 6;
+        $ip = $HOST6IP;
+    }
+    elsif($alt eq "proxy") {
+        # basically the same, but another ID
+        $idnum = 2;
+    }
+    elsif($alt eq "unix") {
+        # IP (protocol) is mutually exclusive with Unix sockets
+        $ipvnum = "unix";
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+    my $portfile = $serverportfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--gopher " if($proto eq "gopher");
+    $flags .= "--connect $HOSTIP " if($alt eq "proxy");
+    $flags .= $verbose_flag if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--portfile $portfile ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    if($ipvnum eq "unix") {
+        $flags .= "--unix-socket '$port_or_path' ";
+    } else {
+        $flags .= "--ipv$ipvnum --port 0 ";
+    }
+    $flags .= "--srcdir \"$TESTDIR/..\"";
+
+    my $cmd = "$exe $flags";
+    my ($httppid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+    if($httppid <= 0 || !pidexists($httppid)) {
+        # it is NOT alive
+        logmsg "RUN: failed to start the $srvrname server\n";
+        stopserver($server, "$pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+
+    # where is it?
+    my $port;
+    if(!$port_or_path) {
+        $port = $port_or_path = pidfromfile($portfile);
+    }
+
+    # Server is up. Verify that we can speak to it.
+    my $pid3 = verifyserver($proto, $ipvnum, $idnum, $ip, $port_or_path);
+    if(!$pid3) {
+        logmsg "RUN: $srvrname server failed verification\n";
+        # failed to talk to it properly. Kill the server and return failure
+        stopserver($server, "$httppid $pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+    $pid2 = $pid3;
+
+    if($verbose) {
+        logmsg "RUN: $srvrname server is on PID $httppid port $port\n";
+    }
+
+    return ($httppid, $pid2, $port);
+}
+
+#######################################################################
+# start the https stunnel based server
+#
+sub runhttpsserver {
+    my ($verbose, $proto, $proxy, $certfile) = @_;
+    my $ip = $HOSTIP;
+    my $ipvnum = 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if($proxy eq "proxy") {
+        # the https-proxy runs as https2
+        $idnum = 2;
+    }
+
+    if(!$stunnel) {
+        return (0, 0, 0);
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $certfile = 'stunnel.pem' unless($certfile);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--ipv$ipvnum --proto $proto ";
+    $flags .= "--certfile \"$certfile\" " if($certfile ne 'stunnel.pem');
+    $flags .= "--stunnel \"$stunnel\" --srcdir \"$srcdir\" ";
+    if($proto eq "gophers") {
+        $flags .= "--connect $GOPHERPORT";
+    }
+    elsif(!$proxy) {
+        $flags .= "--connect $HTTPPORT";
+    }
+    else {
+        # for HTTPS-proxy we connect to the HTTP proxy
+        $flags .= "--connect $HTTPPROXYPORT";
+    }
+
+    my $pid2;
+    my $httpspid;
+    my $port = 24512; # start attempt
+    for (1 .. 10) {
+        $port += int(rand(600));
+        my $options = "$flags --accept $port";
+
+        my $cmd = "$perl $srcdir/secureserver.pl $options";
+        ($httpspid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+        if($httpspid <= 0 || !pidexists($httpspid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            displaylogs($testnumcheck);
+            $doesntrun{$pidfile} = 1;
+            $httpspid = $pid2 = 0;
+            next;
+        }
+        # we have a server!
+        if($verbose) {
+            logmsg "RUN: $srvrname server is PID $httpspid port $port\n";
+        }
+        last;
+    }
+    $runcert{$server} = $certfile;
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$httpspid);
+
+    return ($httpspid, $pid2, $port);
+}
+
+#######################################################################
+# start the non-stunnel HTTP TLS extensions capable server
+#
+sub runhttptlsserver {
+    my ($verbose, $ipv6) = @_;
+    my $proto = "httptls";
+    my $ip = ($ipv6 && ($ipv6 =~ /6$/)) ? "$HOST6IP" : "$HOSTIP";
+    my $ipvnum = ($ipv6 && ($ipv6 =~ /6$/)) ? 6 : 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if(!$httptlssrv) {
+        return (0,0);
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--http ";
+    $flags .= "--debug 1 " if($debugprotocol);
+    $flags .= "--priority NORMAL:+SRP ";
+    $flags .= "--srppasswd $srcdir/certs/srp-verifier-db ";
+    $flags .= "--srppasswdconf $srcdir/certs/srp-verifier-conf";
+
+    my $port = 24367;
+    my ($httptlspid, $pid2);
+    for (1 .. 10) {
+        $port += int(rand(800));
+        my $allflags = "--port $port $flags";
+
+        my $cmd = "$httptlssrv $allflags > $logfile 2>&1";
+        ($httptlspid, $pid2) = startnew($cmd, $pidfile, 10, 1);
+
+        if($httptlspid <= 0 || !pidexists($httptlspid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            displaylogs($testnumcheck);
+            $doesntrun{$pidfile} = 1;
+            $httptlspid = $pid2 = 0;
+            next;
+        }
+        $doesntrun{$pidfile} = 0;
+
+        if($verbose) {
+            logmsg "RUN: $srvrname server PID $httptlspid port $port\n";
+        }
+        last;
+    }
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$httptlspid);
+    return ($httptlspid, $pid2, $port);
+}
+
+#######################################################################
+# start the pingpong server (FTP, POP3, IMAP, SMTP)
+#
+sub runpingpongserver {
+    my ($proto, $id, $verbose, $ipv6) = @_;
+    my $port;
+    my $ip = ($ipv6 && ($ipv6 =~ /6$/)) ? "$HOST6IP" : "$HOSTIP";
+    my $ipvnum = ($ipv6 && ($ipv6 =~ /6$/)) ? 6 : 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+    my $portfile = $serverportfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0,0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--portfile \"$portfile\" ";
+    $flags .= "--srcdir \"$srcdir\" --proto $proto ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--ipv$ipvnum --port 0 --addr \"$ip\"";
+
+    my $cmd = "$perl $srcdir/ftpserver.pl $flags";
+    my ($ftppid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+    if($ftppid <= 0 || !pidexists($ftppid)) {
+        # it is NOT alive
+        logmsg "RUN: failed to start the $srvrname server\n";
+        stopserver($server, "$pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0,0);
+    }
+
+    # where is it?
+    $port = pidfromfile($portfile);
+
+    logmsg "PINGPONG runs on port $port ($portfile)\n" if($verbose);
+
+    # Server is up. Verify that we can speak to it.
+    my $pid3 = verifyserver($proto, $ipvnum, $idnum, $ip, $port);
+    if(!$pid3) {
+        logmsg "RUN: $srvrname server failed verification\n";
+        # failed to talk to it properly. Kill the server and return failure
+        stopserver($server, "$ftppid $pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0,0);
+    }
+    $pid2 = $pid3;
+
+    logmsg "RUN: $srvrname server is PID $ftppid port $port\n" if($verbose);
+
+    # Assign the correct port variable!
+    if($proto eq "ftp") {
+        if($ipvnum == 6) {
+            # if IPv6, use a different setup
+            $FTP6PORT = $port;
+        }
+        else {
+            $FTPPORT = $port;
+        }
+    }
+    elsif($proto eq "pop3") {
+        if($ipvnum == 6) {
+            $POP36PORT = $port;
+        }
+        else {
+            $POP3PORT = $port;
+        }
+    }
+    elsif($proto eq "imap") {
+        if($ipvnum == 6) {
+            $IMAP6PORT  = $port;
+        }
+        else {
+            $IMAPPORT = $port;
+        }
+    }
+    elsif($proto eq "smtp") {
+        if($ipvnum == 6) {
+            $SMTP6PORT = $port;
+        }
+        else {
+            $SMTPPORT = $port;
+        }
+    }
+    else {
+        print STDERR "Unsupported protocol $proto!!\n";
+        return (0,0);
+    }
+
+    return ($pid2, $ftppid);
+}
+
+#######################################################################
+# start the ftps server (or rather, tunnel)
+#
+sub runftpsserver {
+    my ($verbose, $ipv6, $certfile) = @_;
+    my $proto = 'ftps';
+    my $ip = ($ipv6 && ($ipv6 =~ /6$/)) ? "$HOST6IP" : "$HOSTIP";
+    my $ipvnum = ($ipv6 && ($ipv6 =~ /6$/)) ? 6 : 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if(!$stunnel) {
+        return (0,0);
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $certfile = 'stunnel.pem' unless($certfile);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--ipv$ipvnum --proto $proto ";
+    $flags .= "--certfile \"$certfile\" " if($certfile ne 'stunnel.pem');
+    $flags .= "--stunnel \"$stunnel\" --srcdir \"$srcdir\" ";
+    $flags .= "--connect $FTPPORT";
+
+    my $ftpspid;
+    my $pid2;
+    my $port = 26713;
+    for (1 .. 10) {
+        $port += int(rand(700));
+        my $options = "$flags --accept $port";
+        my $cmd = "$perl $srcdir/secureserver.pl $options";
+        ($ftpspid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+        if($ftpspid <= 0 || !pidexists($ftpspid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            displaylogs($testnumcheck);
+            $doesntrun{$pidfile} = 1;
+            $ftpspid = $pid2 = 0;
+            next;
+        }
+
+        $doesntrun{$pidfile} = 0;
+        $runcert{$server} = $certfile;
+
+        if($verbose) {
+            logmsg "RUN: $srvrname server is PID $ftpspid port $port\n";
+        }
+        last;
+    }
+
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$ftpspid);
+
+    return ($ftpspid, $pid2, $port);
+}
+
+#######################################################################
+# start the tftp server
+#
+sub runtftpserver {
+    my ($id, $verbose, $ipv6) = @_;
+    my $ip = $HOSTIP;
+    my $proto = 'tftp';
+    my $ipvnum = 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if($ipv6) {
+        # if IPv6, use a different setup
+        $ipvnum = 6;
+        $ip = $HOST6IP;
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+    my $portfile = $serverportfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" ".
+        "--portfile \"$portfile\" ".
+        "--logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--ipv$ipvnum --port 0 --srcdir \"$srcdir\"";
+
+    my $cmd = "$perl $srcdir/tftpserver.pl $flags";
+    my ($tftppid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+    if($tftppid <= 0 || !pidexists($tftppid)) {
+        # it is NOT alive
+        logmsg "RUN: failed to start the $srvrname server\n";
+        stopserver($server, "$pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+
+    my $port = pidfromfile($portfile);
+
+    # Server is up. Verify that we can speak to it.
+    my $pid3 = verifyserver($proto, $ipvnum, $idnum, $ip, $port);
+    if(!$pid3) {
+        logmsg "RUN: $srvrname server failed verification\n";
+        # failed to talk to it properly. Kill the server and return failure
+        stopserver($server, "$tftppid $pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+    $pid2 = $pid3;
+
+    if($verbose) {
+        logmsg "RUN: $srvrname server on PID $tftppid port $port\n";
+    }
+
+    return ($pid2, $tftppid, $port);
+}
+
+
+#######################################################################
+# start the rtsp server
+#
+sub runrtspserver {
+    my ($verbose, $ipv6) = @_;
+    my $ip = $HOSTIP;
+    my $proto = 'rtsp';
+    my $ipvnum = 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if($ipv6) {
+        # if IPv6, use a different setup
+        $ipvnum = 6;
+        $ip = $HOST6IP;
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+    my $portfile = $serverportfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" ".
+         "--portfile \"$portfile\" ".
+        "--logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--ipv$ipvnum --port 0 --srcdir \"$srcdir\"";
+
+    my $cmd = "$perl $srcdir/rtspserver.pl $flags";
+    my ($rtsppid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+    if($rtsppid <= 0 || !pidexists($rtsppid)) {
+        # it is NOT alive
+        logmsg "RUN: failed to start the $srvrname server\n";
+        stopserver($server, "$pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+
+    my $port = pidfromfile($portfile);
+
+    # Server is up. Verify that we can speak to it.
+    my $pid3 = verifyserver($proto, $ipvnum, $idnum, $ip, $port);
+    if(!$pid3) {
+        logmsg "RUN: $srvrname server failed verification\n";
+        # failed to talk to it properly. Kill the server and return failure
+        stopserver($server, "$rtsppid $pid2");
+        displaylogs($testnumcheck);
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+    $pid2 = $pid3;
+
+    if($verbose) {
+        logmsg "RUN: $srvrname server PID $rtsppid port $port\n";
+    }
+
+    return ($rtsppid, $pid2, $port);
+}
+
+
+#######################################################################
+# Start the ssh (scp/sftp) server
+#
+sub runsshserver {
+    my ($id, $verbose, $ipv6) = @_;
+    my $ip=$HOSTIP;
+    my $proto = 'ssh';
+    my $ipvnum = 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $port = 20000; # no lower port
+
+    if(!$USER) {
+        logmsg "Can't start ssh server due to lack of USER name";
+        return (0,0,0);
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $sshd = find_sshd();
+    if($sshd) {
+        ($sshdid,$sshdvernum,$sshdverstr,$sshderror) = sshversioninfo($sshd);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    my $flags = "";
+    $flags .= "--verbose " if($verbose);
+    $flags .= "--debugprotocol " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--ipv$ipvnum --addr \"$ip\" ";
+    $flags .= "--user \"$USER\"";
+
+    my $sshpid;
+    my $pid2;
+
+    my $wport = 0,
+    my @tports;
+    for(1 .. 10) {
+
+        # sshd doesn't have a way to pick an unused random port number, so
+        # instead we iterate over possible port numbers to use until we find
+        # one that works
+        $port += int(rand(500));
+        push @tports, $port;
+
+        my $options = "$flags --sshport $port";
+
+        my $cmd = "$perl $srcdir/sshserver.pl $options";
+        ($sshpid, $pid2) = startnew($cmd, $pidfile, 60, 0);
+
+        # on loaded systems sshserver start up can take longer than the
+        # timeout passed to startnew, when this happens startnew completes
+        # without being able to read the pidfile and consequently returns a
+        # zero pid2 above.
+        if($sshpid <= 0 || !pidexists($sshpid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            $doesntrun{$pidfile} = 1;
+            $sshpid = $pid2 = 0;
+            next;
+        }
+
+        # once it is known that the ssh server is alive, sftp server
+        # verification is performed actually connecting to it, authenticating
+        # and performing a very simple remote command.  This verification is
+        # tried only one time.
+
+        $sshdlog = server_logfilename($LOGDIR, 'ssh', $ipvnum, $idnum);
+        $sftplog = server_logfilename($LOGDIR, 'sftp', $ipvnum, $idnum);
+
+        if(verifysftp('sftp', $ipvnum, $idnum, $ip, $port) < 1) {
+            logmsg "RUN: SFTP server failed verification\n";
+            # failed to talk to it properly. Kill the server and return failure
+            display_sftplog();
+            display_sftpconfig();
+            display_sshdlog();
+            display_sshdconfig();
+            stopserver($server, "$sshpid $pid2");
+            $doesntrun{$pidfile} = 1;
+            $sshpid = $pid2 = 0;
+            next;
+        }
+        # we're happy, no need to loop anymore!
+        $doesntrun{$pidfile} = 0;
+        $wport = $port;
+        last;
+    }
+    logmsg "RUN: failed to start the $srvrname server on $port\n" if(!$sshpid);
+
+    if(!$wport) {
+        logmsg "RUN: couldn't start $srvrname. Tried these ports:";
+        logmsg "RUN: ".join(", ", @tports);
+        return (0,0,0);
+    }
+
+    my $hstpubmd5f = "curl_host_rsa_key.pub_md5";
+    if(!open(PUBMD5FILE, "<", $hstpubmd5f) ||
+       (read(PUBMD5FILE, $SSHSRVMD5, 32) != 32) ||
+       !close(PUBMD5FILE) ||
+       ($SSHSRVMD5 !~ /^[a-f0-9]{32}$/i))
+    {
+        my $msg = "Fatal: $srvrname pubkey md5 missing : \"$hstpubmd5f\" : $!";
+        logmsg "$msg\n";
+        stopservers($verbose);
+        die $msg;
+    }
+
+    my $hstpubsha256f = "curl_host_rsa_key.pub_sha256";
+    if(!open(PUBSHA256FILE, "<", $hstpubsha256f) ||
+       (read(PUBSHA256FILE, $SSHSRVSHA256, 48) == 0) ||
+       !close(PUBSHA256FILE))
+    {
+        my $msg = "Fatal: $srvrname pubkey sha256 missing : \"$hstpubsha256f\" : $!";
+        logmsg "$msg\n";
+        stopservers($verbose);
+        die $msg;
+    }
+
+    logmsg "RUN: $srvrname on PID $pid2 port $wport\n" if($verbose);
+
+    return ($pid2, $sshpid, $wport);
+}
+
+#######################################################################
+# Start the MQTT server
+#
+sub runmqttserver {
+    my ($id, $verbose, $ipv6) = @_;
+    my $ip=$HOSTIP;
+    my $port = $MQTTPORT;
+    my $proto = 'mqtt';
+    my $ipvnum = 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $portfile;
+    my $logfile;
+    my $flags = "";
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+    $pidfile = $serverpidfile{$server};
+    $portfile = $serverportfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0,0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    # start our MQTT server - on a random port!
+    my $cmd="server/mqttd".exe_ext('SRV').
+        " --port 0 ".
+        " --pidfile $pidfile".
+        " --portfile $portfile".
+        " --config $FTPDCMD";
+    my ($sockspid, $pid2) = startnew($cmd, $pidfile, 30, 0);
+
+    if($sockspid <= 0 || !pidexists($sockspid)) {
+        # it is NOT alive
+        logmsg "RUN: failed to start the $srvrname server\n";
+        stopserver($server, "$pid2");
+        $doesntrun{$pidfile} = 1;
+        return (0,0);
+    }
+
+    $MQTTPORT = pidfromfile($portfile);
+
+    if($verbose) {
+        logmsg "RUN: $srvrname server is now running PID $pid2 on PORT $MQTTPORT\n";
+    }
+
+    return ($pid2, $sockspid);
+}
+
+#######################################################################
+# Start the socks server
+#
+sub runsocksserver {
+    my ($id, $verbose, $ipv6, $is_unix) = @_;
+    my $ip=$HOSTIP;
+    my $proto = 'socks';
+    my $ipvnum = 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+    my $portfile = $serverportfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    # start our socks server, get commands from the FTP cmd file
+    my $cmd="";
+    if($is_unix) {
+        $cmd="server/socksd".exe_ext('SRV').
+            " --pidfile $pidfile".
+            " --unix-socket $SOCKSUNIXPATH".
+            " --backend $HOSTIP".
+            " --config $FTPDCMD";
+    } else {
+        $cmd="server/socksd".exe_ext('SRV').
+            " --port 0 ".
+            " --pidfile $pidfile".
+            " --portfile $portfile".
+            " --backend $HOSTIP".
+            " --config $FTPDCMD";
+    }
+    my ($sockspid, $pid2) = startnew($cmd, $pidfile, 30, 0);
+
+    if($sockspid <= 0 || !pidexists($sockspid)) {
+        # it is NOT alive
+        logmsg "RUN: failed to start the $srvrname server\n";
+        stopserver($server, "$pid2");
+        $doesntrun{$pidfile} = 1;
+        return (0, 0, 0);
+    }
+
+    my $port = pidfromfile($portfile);
+
+    if($verbose) {
+        logmsg "RUN: $srvrname server is now running PID $pid2\n";
+    }
+
+    return ($pid2, $sockspid, $port);
+}
+
+#######################################################################
+# start the dict server
+#
+sub rundictserver {
+    my ($verbose, $alt) = @_;
+    my $proto = "dict";
+    my $ip = $HOSTIP;
+    my $ipvnum = 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if($alt eq "ipv6") {
+        # No IPv6
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose 1 " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--srcdir \"$srcdir\" ";
+    $flags .= "--host $HOSTIP";
+
+    my $port = 29000;
+    my ($dictpid, $pid2);
+    for(1 .. 10) {
+        $port += int(rand(900));
+        my $aflags = "--port $port $flags";
+        my $cmd = "$srcdir/dictserver.py $aflags";
+        ($dictpid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+        if($dictpid <= 0 || !pidexists($dictpid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            displaylogs($testnumcheck);
+            $doesntrun{$pidfile} = 1;
+            $dictpid = $pid2 = 0;
+            next;
+        }
+        $doesntrun{$pidfile} = 0;
+
+        if($verbose) {
+            logmsg "RUN: $srvrname server PID $dictpid port $port\n";
+        }
+        last;
+    }
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$dictpid);
+
+    return ($dictpid, $pid2, $port);
+}
+
+#######################################################################
+# start the SMB server
+#
+sub runsmbserver {
+    my ($verbose, $alt) = @_;
+    my $proto = "smb";
+    my $ip = $HOSTIP;
+    my $ipvnum = 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if($alt eq "ipv6") {
+        # No IPv6
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose 1 " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--srcdir \"$srcdir\" ";
+    $flags .= "--host $HOSTIP";
+
+    my ($smbpid, $pid2);
+    my $port = 31923;
+    for(1 .. 10) {
+        $port += int(rand(760));
+        my $aflags = "--port $port $flags";
+        my $cmd = "$srcdir/smbserver.py $aflags";
+        ($smbpid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+        if($smbpid <= 0 || !pidexists($smbpid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            displaylogs($testnumcheck);
+            $doesntrun{$pidfile} = 1;
+            $smbpid = $pid2 = 0;
+            next;
+        }
+        $doesntrun{$pidfile} = 0;
+
+        if($verbose) {
+            logmsg "RUN: $srvrname server PID $smbpid port $port\n";
+        }
+        last;
+    }
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$smbpid);
+
+    return ($smbpid, $pid2, $port);
+}
+
+#######################################################################
+# start the telnet server
+#
+sub runnegtelnetserver {
+    my ($verbose, $alt) = @_;
+    my $proto = "telnet";
+    my $ip = $HOSTIP;
+    my $ipvnum = 4;
+    my $idnum = 1;
+    my $server;
+    my $srvrname;
+    my $pidfile;
+    my $logfile;
+    my $flags = "";
+
+    if($alt eq "ipv6") {
+        # No IPv6
+    }
+
+    $server = servername_id($proto, $ipvnum, $idnum);
+
+    $pidfile = $serverpidfile{$server};
+
+    # don't retry if the server doesn't work
+    if ($doesntrun{$pidfile}) {
+        return (0, 0, 0);
+    }
+
+    my $pid = processexists($pidfile);
+    if($pid > 0) {
+        stopserver($server, "$pid");
+    }
+    unlink($pidfile) if(-f $pidfile);
+
+    $srvrname = servername_str($proto, $ipvnum, $idnum);
+
+    $logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
+
+    $flags .= "--verbose 1 " if($debugprotocol);
+    $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+    $flags .= "--id $idnum " if($idnum > 1);
+    $flags .= "--srcdir \"$srcdir\"";
+
+    my ($ntelpid, $pid2);
+    my $port = 32000;
+    for(1 .. 10) {
+        $port += int(rand(800));
+        my $aflags = "--port $port $flags";
+        my $cmd = "$srcdir/negtelnetserver.py $aflags";
+        ($ntelpid, $pid2) = startnew($cmd, $pidfile, 15, 0);
+
+        if($ntelpid <= 0 || !pidexists($ntelpid)) {
+            # it is NOT alive
+            stopserver($server, "$pid2");
+            displaylogs($testnumcheck);
+            $doesntrun{$pidfile} = 1;
+            $ntelpid = $pid2 = 0;
+            next;
+        }
+        $doesntrun{$pidfile} = 0;
+
+        if($verbose) {
+            logmsg "RUN: $srvrname server PID $ntelpid port $port\n";
+        }
+        last;
+    }
+    logmsg "RUN: failed to start the $srvrname server\n" if(!$ntelpid);
+
+    return ($ntelpid, $pid2, $port);
+}
+
+
+#######################################################################
+# Single shot http and gopher server responsiveness test. This should only
+# be used to verify that a server present in %run hash is still functional
+#
+sub responsive_http_server {
+    my ($proto, $verbose, $alt, $port_or_path) = @_;
+    my $ip = $HOSTIP;
+    my $ipvnum = 4;
+    my $idnum = 1;
+
+    if($alt eq "ipv6") {
+        # if IPv6, use a different setup
+        $ipvnum = 6;
+        $ip = $HOST6IP;
+    }
+    elsif($alt eq "proxy") {
+        $idnum = 2;
+    }
+    elsif($alt eq "unix") {
+        # IP (protocol) is mutually exclusive with Unix sockets
+        $ipvnum = "unix";
+    }
+
+    return &responsiveserver($proto, $ipvnum, $idnum, $ip, $port_or_path);
+}
+
+#######################################################################
+# Single shot pingpong server responsiveness test. This should only be
+# used to verify that a server present in %run hash is still functional
+#
+sub responsive_pingpong_server {
+    my ($proto, $id, $verbose, $ipv6) = @_;
+    my $port;
+    my $ip = ($ipv6 && ($ipv6 =~ /6$/)) ? "$HOST6IP" : "$HOSTIP";
+    my $ipvnum = ($ipv6 && ($ipv6 =~ /6$/)) ? 6 : 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+
+    if($proto eq "ftp") {
+        $port = $FTPPORT;
+
+        if($ipvnum==6) {
+            # if IPv6, use a different setup
+            $port = $FTP6PORT;
+        }
+    }
+    elsif($proto eq "pop3") {
+        $port = ($ipvnum==6) ? $POP36PORT : $POP3PORT;
+    }
+    elsif($proto eq "imap") {
+        $port = ($ipvnum==6) ? $IMAP6PORT : $IMAPPORT;
+    }
+    elsif($proto eq "smtp") {
+        $port = ($ipvnum==6) ? $SMTP6PORT : $SMTPPORT;
+    }
+    else {
+        print STDERR "Unsupported protocol $proto!!\n";
+        return 0;
+    }
+
+    return &responsiveserver($proto, $ipvnum, $idnum, $ip, $port);
+}
+
+#######################################################################
+# Single shot rtsp server responsiveness test. This should only be
+# used to verify that a server present in %run hash is still functional
+#
+sub responsive_rtsp_server {
+    my ($verbose, $ipv6) = @_;
+    my $port = $RTSPPORT;
+    my $ip = $HOSTIP;
+    my $proto = 'rtsp';
+    my $ipvnum = 4;
+    my $idnum = 1;
+
+    if($ipv6) {
+        # if IPv6, use a different setup
+        $ipvnum = 6;
+        $port = $RTSP6PORT;
+        $ip = $HOST6IP;
+    }
+
+    return &responsiveserver($proto, $ipvnum, $idnum, $ip, $port);
+}
+
+#######################################################################
+# Single shot tftp server responsiveness test. This should only be
+# used to verify that a server present in %run hash is still functional
+#
+sub responsive_tftp_server {
+    my ($id, $verbose, $ipv6) = @_;
+    my $port = $TFTPPORT;
+    my $ip = $HOSTIP;
+    my $proto = 'tftp';
+    my $ipvnum = 4;
+    my $idnum = ($id && ($id =~ /^(\d+)$/) && ($id > 1)) ? $id : 1;
+
+    if($ipv6) {
+        # if IPv6, use a different setup
+        $ipvnum = 6;
+        $port = $TFTP6PORT;
+        $ip = $HOST6IP;
+    }
+
+    return &responsiveserver($proto, $ipvnum, $idnum, $ip, $port);
+}
+
+#######################################################################
+# Single shot non-stunnel HTTP TLS extensions capable server
+# responsiveness test. This should only be used to verify that a
+# server present in %run hash is still functional
+#
+sub responsive_httptls_server {
+    my ($verbose, $ipv6) = @_;
+    my $proto = "httptls";
+    my $port = ($ipv6 && ($ipv6 =~ /6$/)) ? $HTTPTLS6PORT : $HTTPTLSPORT;
+    my $ip = ($ipv6 && ($ipv6 =~ /6$/)) ? "$HOST6IP" : "$HOSTIP";
+    my $ipvnum = ($ipv6 && ($ipv6 =~ /6$/)) ? 6 : 4;
+    my $idnum = 1;
+
+    return &responsiveserver($proto, $ipvnum, $idnum, $ip, $port);
+}
+
+#######################################################################
+# Kill the processes that still lock files in a directory
+#
+sub clearlocks {
+    my $dir = $_[0];
+    my $done = 0;
+
+    if(pathhelp::os_is_win()) {
+        $dir = pathhelp::sys_native_abs_path($dir);
+        $dir =~ s/\//\\\\/g;
+        my $handle = "handle.exe";
+        if($ENV{"PROCESSOR_ARCHITECTURE"} =~ /64$/) {
+            $handle = "handle64.exe";
+        }
+        my @handles = `$handle $dir -accepteula -nobanner`;
+        for $handle (@handles) {
+            if($handle =~ /^(\S+)\s+pid:\s+(\d+)\s+type:\s+(\w+)\s+([0-9A-F]+):\s+(.+)\r\r/) {
+                logmsg "Found $3 lock of '$5' ($4) by $1 ($2)\n";
+                # Ignore stunnel since we cannot do anything about its locks
+                if("$3" eq "File" && "$1" ne "tstunnel.exe") {
+                    logmsg "Killing IMAGENAME eq $1 and PID eq $2\n";
+                    system("taskkill.exe -f -fi \"IMAGENAME eq $1\" -fi \"PID eq $2\" >nul 2>&1");
+                    $done = 1;
+                }
+            }
+        }
+    }
+    return $done;
+}
+
+#######################################################################
+# Remove all files in the specified directory
+#
+sub cleardir {
+    my $dir = $_[0];
+    my $done = 1;
+    my $file;
+
+    # Get all files
+    opendir(my $dh, $dir) ||
+        return 0; # can't open dir
+    while($file = readdir($dh)) {
+        if(($file !~ /^(\.|\.\.)\z/)) {
+            if(-d "$dir/$file") {
+                if(!cleardir("$dir/$file")) {
+                    $done = 0;
+                }
+                if(!rmdir("$dir/$file")) {
+                    $done = 0;
+                }
+            }
+            else {
+                # Ignore stunnel since we cannot do anything about its locks
+                if(!unlink("$dir/$file") && "$file" !~ /_stunnel\.log$/) {
+                    $done = 0;
+                }
+            }
+        }
+    }
+    closedir $dh;
+    return $done;
+}
+
+#######################################################################
+# compare test results with the expected output, we might filter off
+# some pattern that is allowed to differ, output test results
+#
+sub compare {
+    my ($testnum, $testname, $subject, $firstref, $secondref)=@_;
+
+    my $result = compareparts($firstref, $secondref);
+
+    if($result) {
+        # timestamp test result verification end
+        $timevrfyend{$testnum} = Time::HiRes::time();
+
+        if(!$short) {
+            logmsg "\n $testnum: $subject FAILED:\n";
+            logmsg showdiff($LOGDIR, $firstref, $secondref);
+        }
+        elsif(!$automakestyle) {
+            logmsg "FAILED\n";
+        }
+        else {
+            # automakestyle
+            logmsg "FAIL: $testnum - $testname - $subject\n";
+        }
+    }
+    return $result;
+}
+
+sub setupfeatures {
+    $feature{"alt-svc"} = $has_altsvc;
+    $feature{"bearssl"} = $has_bearssl;
+    $feature{"brotli"} = $has_brotli;
+    $feature{"c-ares"} = $has_cares;
+    $feature{"crypto"} = $has_crypto;
+    $feature{"debug"} = $debug_build;
+    $feature{"getrlimit"} = $has_getrlimit;
+    $feature{"GnuTLS"} = $has_gnutls;
+    $feature{"GSS-API"} = $has_gssapi;
+    $feature{"h2c"} = $has_h2c;
+    $feature{"HSTS"} = $has_hsts;
+    $feature{"http/2"} = $has_http2;
+    $feature{"https-proxy"} = $has_httpsproxy;
+    $feature{"hyper"} = $has_hyper;
+    $feature{"idn"} = $has_idn;
+    $feature{"ipv6"} = $has_ipv6;
+    $feature{"Kerberos"} = $has_kerberos;
+    $feature{"large_file"} = $has_largefile;
+    $feature{"ld_preload"} = ($has_ldpreload && !$debug_build);
+    $feature{"libssh"} = $has_libssh;
+    $feature{"libssh2"} = $has_libssh2;
+    $feature{"libz"} = $has_libz;
+    $feature{"manual"} = $has_manual;
+    $feature{"MinGW"} = $has_mingw;
+    $feature{"MultiSSL"} = $has_multissl;
+    $feature{"NSS"} = $has_nss;
+    $feature{"NTLM"} = $has_ntlm;
+    $feature{"NTLM_WB"} = $has_ntlm_wb;
+    $feature{"oldlibssh"} = $has_oldlibssh;
+    $feature{"OpenSSL"} = $has_openssl || $has_libressl || $has_boringssl;
+    $feature{"PSL"} = $has_psl;
+    $feature{"rustls"} = $has_rustls;
+    $feature{"Schannel"} = $has_schannel;
+    $feature{"sectransp"} = $has_sectransp;
+    $feature{"SPNEGO"} = $has_spnego;
+    $feature{"SSL"} = $has_ssl;
+    $feature{"SSLpinning"} = $has_sslpinning;
+    $feature{"SSPI"} = $has_sspi;
+    $feature{"threaded-resolver"} = $has_threadedres;
+    $feature{"threadsafe"} = $has_threadsafe;
+    $feature{"TLS-SRP"} = $has_tls_srp;
+    $feature{"TrackMemory"} = $has_memory_tracking;
+    $feature{"Unicode"} = $has_unicode;
+    $feature{"unittest"} = $debug_build;
+    $feature{"unix-sockets"} = $has_unix;
+    $feature{"win32"} = $has_win32;
+    $feature{"wolfssh"} = $has_wolfssh;
+    $feature{"wolfssl"} = $has_wolfssl;
+    $feature{"zstd"} = $has_zstd;
+
+    # make each protocol an enabled "feature"
+    for my $p (@protocols) {
+        $feature{$p} = 1;
+    }
+    # 'socks' was once here but is now removed
+
+    #
+    # strings that must match the names used in server/disabled.c
+    #
+    $feature{"cookies"} = 1;
+    $feature{"DoH"} = 1;
+    $feature{"HTTP-auth"} = 1;
+    $feature{"Mime"} = 1;
+    $feature{"netrc"} = 1;
+    $feature{"parsedate"} = 1;
+    $feature{"proxy"} = 1;
+    $feature{"shuffle-dns"} = 1;
+    $feature{"typecheck"} = 1;
+    $feature{"verbose-strings"} = 1;
+    $feature{"wakeup"} = 1;
+    $feature{"headers-api"} = 1;
+    $feature{"xattr"} = 1;
+}
+
+#######################################################################
+# display information about curl and the host the test suite runs on
+#
+sub checksystem {
+
+    unlink($memdump); # remove this if there was one left
+
+    my $feat;
+    my $curl;
+    my $libcurl;
+    my $versretval;
+    my $versnoexec;
+    my @version=();
+    my @disabled;
+    my $dis = "";
+
+    my $curlverout="$LOGDIR/curlverout.log";
+    my $curlvererr="$LOGDIR/curlvererr.log";
+    my $versioncmd="$CURL --version 1>$curlverout 2>$curlvererr";
+
+    unlink($curlverout);
+    unlink($curlvererr);
+
+    $versretval = runclient($versioncmd);
+    $versnoexec = $!;
+
+    open(VERSOUT, "<$curlverout");
+    @version = <VERSOUT>;
+    close(VERSOUT);
+
+    open(DISABLED, "server/disabled".exe_ext('TOOL')."|");
+    @disabled = <DISABLED>;
+    close(DISABLED);
+
+    if($disabled[0]) {
+        map s/[\r\n]//g, @disabled;
+        $dis = join(", ", @disabled);
+    }
+
+    $resolver="stock";
+    for(@version) {
+        chomp;
+
+        if($_ =~ /^curl ([^ ]*)/) {
+            $curl = $_;
+            $VERSION = $1;
+            $curl =~ s/^(.*)(libcurl.*)/$1/g;
+
+            $libcurl = $2;
+            if($curl =~ /linux|bsd|solaris/) {
+                $has_ldpreload = 1;
+            }
+            if($curl =~ /win32|Windows|mingw(32|64)/) {
+                # This is a Windows MinGW build or native build, we need to use
+                # Win32-style path.
+                $pwd = pathhelp::sys_native_current_path();
+                $has_textaware = 1;
+                $has_win32 = 1;
+                $has_mingw = 1 if ($curl =~ /-pc-mingw32/);
+            }
+           if ($libcurl =~ /(winssl|schannel)/i) {
+               $has_schannel=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /openssl/i) {
+               $has_openssl=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /gnutls/i) {
+               $has_gnutls=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /rustls-ffi/i) {
+               $has_rustls=1;
+           }
+           elsif ($libcurl =~ /nss/i) {
+               $has_nss=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /wolfssl/i) {
+               $has_wolfssl=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /bearssl/i) {
+               $has_bearssl=1;
+           }
+           elsif ($libcurl =~ /securetransport/i) {
+               $has_sectransp=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /BoringSSL/i) {
+               $has_boringssl=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /libressl/i) {
+               $has_libressl=1;
+               $has_sslpinning=1;
+           }
+           elsif ($libcurl =~ /mbedTLS/i) {
+               $has_mbedtls=1;
+               $has_sslpinning=1;
+           }
+           if ($libcurl =~ /ares/i) {
+               $has_cares=1;
+               $resolver="c-ares";
+           }
+           if ($libcurl =~ /Hyper/i) {
+               $has_hyper=1;
+           }
+            if ($libcurl =~ /nghttp2/i) {
+                # nghttp2 supports h2c, hyper does not
+                $has_h2c=1;
+            }
+            if ($libcurl =~ /libssh2/i) {
+                $has_libssh2=1;
+            }
+            if ($libcurl =~ /libssh\/([0-9.]*)\//i) {
+                $has_libssh=1;
+                if($1 =~ /(\d+)\.(\d+).(\d+)/) {
+                    my $v = $1 * 100 + $2 * 10 + $3;
+                    if($v < 94) {
+                        # before 0.9.4
+                        $has_oldlibssh = 1;
+                    }
+                }
+            }
+            if ($libcurl =~ /wolfssh/i) {
+                $has_wolfssh=1;
+            }
+        }
+        elsif($_ =~ /^Protocols: (.*)/i) {
+            # these are the protocols compiled in to this libcurl
+            @protocols = split(' ', lc($1));
+
+            # Generate a "proto-ipv6" version of each protocol to match the
+            # IPv6 <server> name and a "proto-unix" to match the variant which
+            # uses Unix domain sockets. This works even if support isn't
+            # compiled in because the <features> test will fail.
+            push @protocols, map(("$_-ipv6", "$_-unix"), @protocols);
+
+            # 'http-proxy' is used in test cases to do CONNECT through
+            push @protocols, 'http-proxy';
+
+            # 'none' is used in test cases to mean no server
+            push @protocols, 'none';
+        }
+        elsif($_ =~ /^Features: (.*)/i) {
+            $feat = $1;
+            if($feat =~ /TrackMemory/i) {
+                # built with memory tracking support (--enable-curldebug)
+                $has_memory_tracking = 1;
+            }
+            if($feat =~ /debug/i) {
+                # curl was built with --enable-debug
+                $debug_build = 1;
+            }
+            if($feat =~ /SSL/i) {
+                # ssl enabled
+                $has_ssl=1;
+            }
+            if($feat =~ /MultiSSL/i) {
+                # multiple ssl backends available.
+                $has_multissl=1;
+            }
+            if($feat =~ /Largefile/i) {
+                # large file support
+                $has_largefile=1;
+            }
+            if($feat =~ /IDN/i) {
+                # IDN support
+                $has_idn=1;
+            }
+            if($feat =~ /IPv6/i) {
+                $has_ipv6 = 1;
+            }
+            if($feat =~ /UnixSockets/i) {
+                $has_unix = 1;
+            }
+            if($feat =~ /libz/i) {
+                $has_libz = 1;
+            }
+            if($feat =~ /brotli/i) {
+                $has_brotli = 1;
+            }
+            if($feat =~ /zstd/i) {
+                $has_zstd = 1;
+            }
+            if($feat =~ /NTLM/i) {
+                # NTLM enabled
+                $has_ntlm=1;
+
+                # Use this as a proxy for any cryptographic authentication
+                $has_crypto=1;
+            }
+            if($feat =~ /NTLM_WB/i) {
+                # NTLM delegation to winbind daemon ntlm_auth helper enabled
+                $has_ntlm_wb=1;
+            }
+            if($feat =~ /SSPI/i) {
+                # SSPI enabled
+                $has_sspi=1;
+            }
+            if($feat =~ /GSS-API/i) {
+                # GSS-API enabled
+                $has_gssapi=1;
+            }
+            if($feat =~ /Kerberos/i) {
+                # Kerberos enabled
+                $has_kerberos=1;
+
+                # Use this as a proxy for any cryptographic authentication
+                $has_crypto=1;
+            }
+            if($feat =~ /SPNEGO/i) {
+                # SPNEGO enabled
+                $has_spnego=1;
+
+                # Use this as a proxy for any cryptographic authentication
+                $has_crypto=1;
+            }
+            if($feat =~ /CharConv/i) {
+                # CharConv enabled
+                $has_charconv=1;
+            }
+            if($feat =~ /TLS-SRP/i) {
+                # TLS-SRP enabled
+                $has_tls_srp=1;
+            }
+            if($feat =~ /PSL/i) {
+                # PSL enabled
+                $has_psl=1;
+            }
+            if($feat =~ /alt-svc/i) {
+                # alt-svc enabled
+                $has_altsvc=1;
+            }
+            if($feat =~ /HSTS/i) {
+                $has_hsts=1;
+            }
+            if($feat =~ /AsynchDNS/i) {
+                if(!$has_cares) {
+                    # this means threaded resolver
+                    $has_threadedres=1;
+                    $resolver="threaded";
+                }
+            }
+            if($feat =~ /HTTP2/) {
+                # http2 enabled
+                $has_http2=1;
+
+                push @protocols, 'http/2';
+            }
+            if($feat =~ /HTTPS-proxy/) {
+                $has_httpsproxy=1;
+
+                # 'https-proxy' is used as "server" so consider it a protocol
+                push @protocols, 'https-proxy';
+            }
+            if($feat =~ /Unicode/i) {
+                $has_unicode = 1;
+            }
+            if($feat =~ /threadsafe/i) {
+                $has_threadsafe = 1;
+            }
+        }
+        #
+        # Test harness currently uses a non-stunnel server in order to
+        # run HTTP TLS-SRP tests required when curl is built with https
+        # protocol support and TLS-SRP feature enabled. For convenience
+        # 'httptls' may be included in the test harness protocols array
+        # to differentiate this from classic stunnel based 'https' test
+        # harness server.
+        #
+        if($has_tls_srp) {
+            my $add_httptls;
+            for(@protocols) {
+                if($_ =~ /^https(-ipv6|)$/) {
+                    $add_httptls=1;
+                    last;
+                }
+            }
+            if($add_httptls && (! grep /^httptls$/, @protocols)) {
+                push @protocols, 'httptls';
+                push @protocols, 'httptls-ipv6';
+            }
+        }
+    }
+    if(!$curl) {
+        logmsg "unable to get curl's version, further details are:\n";
+        logmsg "issued command: \n";
+        logmsg "$versioncmd \n";
+        if ($versretval == -1) {
+            logmsg "command failed with: \n";
+            logmsg "$versnoexec \n";
+        }
+        elsif ($versretval & 127) {
+            logmsg sprintf("command died with signal %d, and %s coredump.\n",
+                           ($versretval & 127), ($versretval & 128)?"a":"no");
+        }
+        else {
+            logmsg sprintf("command exited with value %d \n", $versretval >> 8);
+        }
+        logmsg "contents of $curlverout: \n";
+        displaylogcontent("$curlverout");
+        logmsg "contents of $curlvererr: \n";
+        displaylogcontent("$curlvererr");
+        die "couldn't get curl's version";
+    }
+
+    if(-r "../lib/curl_config.h") {
+        open(CONF, "<../lib/curl_config.h");
+        while(<CONF>) {
+            if($_ =~ /^\#define HAVE_GETRLIMIT/) {
+                $has_getrlimit = 1;
+            }
+        }
+        close(CONF);
+    }
+
+    if($has_ipv6) {
+        # client has IPv6 support
+
+        # check if the HTTP server has it!
+        my $cmd = "server/sws".exe_ext('SRV')." --version";
+        my @sws = `$cmd`;
+        if($sws[0] =~ /IPv6/) {
+            # HTTP server has IPv6 support!
+            $http_ipv6 = 1;
+            $gopher_ipv6 = 1;
+        }
+
+        # check if the FTP server has it!
+        $cmd = "server/sockfilt".exe_ext('SRV')." --version";
+        @sws = `$cmd`;
+        if($sws[0] =~ /IPv6/) {
+            # FTP server has IPv6 support!
+            $ftp_ipv6 = 1;
+        }
+    }
+
+    if($has_unix) {
+        # client has Unix sockets support, check whether the HTTP server has it
+        my $cmd = "server/sws".exe_ext('SRV')." --version";
+        my @sws = `$cmd`;
+        $http_unix = 1 if($sws[0] =~ /unix/);
+    }
+
+    if(!$has_memory_tracking && $torture) {
+        die "can't run torture tests since curl was built without ".
+            "TrackMemory feature (--enable-curldebug)";
+    }
+
+    open(M, "$CURL -M 2>&1|");
+    while(my $s = <M>) {
+        if($s =~ /built-in manual was disabled at build-time/) {
+            $has_manual = 0;
+            last;
+        }
+        $has_manual = 1;
+        last;
+    }
+    close(M);
+
+    $has_shared = `sh $CURLCONFIG --built-shared`;
+    chomp $has_shared;
+
+    my $hostname=join(' ', runclientoutput("hostname"));
+    my $hosttype=join(' ', runclientoutput("uname -a"));
+    my $hostos=$^O;
+
+    logmsg ("********* System characteristics ******** \n",
+            "* $curl\n",
+            "* $libcurl\n",
+            "* Features: $feat\n",
+            "* Disabled: $dis\n",
+            "* Host: $hostname",
+            "* System: $hosttype",
+            "* OS: $hostos\n");
+
+    if($has_memory_tracking && $has_threadedres) {
+        $has_memory_tracking = 0;
+        logmsg("*\n",
+               "*** DISABLES memory tracking when using threaded resolver\n",
+               "*\n");
+    }
+
+    logmsg sprintf("* Servers: %s", $stunnel?"SSL ":"");
+    logmsg sprintf("%s", $http_ipv6?"HTTP-IPv6 ":"");
+    logmsg sprintf("%s", $http_unix?"HTTP-unix ":"");
+    logmsg sprintf("%s\n", $ftp_ipv6?"FTP-IPv6 ":"");
+
+    logmsg sprintf("* Env: %s%s", $valgrind?"Valgrind ":"",
+                   $run_event_based?"event-based ":"");
+    logmsg sprintf("%s\n", $libtool?"Libtool ":"");
+    logmsg ("* Seed: $randseed\n");
+
+    if($verbose) {
+        if($has_unix) {
+            logmsg "* Unix socket paths:\n";
+            if($http_unix) {
+                logmsg sprintf("*   HTTP-Unix:%s\n", $HTTPUNIXPATH);
+                logmsg sprintf("*   Socks-Unix:%s\n", $SOCKSUNIXPATH);
+            }
+        }
+    }
+
+    logmsg "***************************************** \n";
+
+    setupfeatures();
+    # toggle off the features that were disabled in the build
+    for my $d(@disabled) {
+        $feature{$d} = 0;
+    }
+}
+
+#######################################################################
+# substitute the variable stuff into either a joined up file or
+# a command, in either case passed by reference
+#
+sub subVariables {
+    my ($thing, $testnum, $prefix) = @_;
+
+    if(!$prefix) {
+        $prefix = "%";
+    }
+
+    # test server ports
+    $$thing =~ s/${prefix}FTP6PORT/$FTP6PORT/g;
+    $$thing =~ s/${prefix}FTPSPORT/$FTPSPORT/g;
+    $$thing =~ s/${prefix}FTPPORT/$FTPPORT/g;
+    $$thing =~ s/${prefix}GOPHER6PORT/$GOPHER6PORT/g;
+    $$thing =~ s/${prefix}GOPHERPORT/$GOPHERPORT/g;
+    $$thing =~ s/${prefix}GOPHERSPORT/$GOPHERSPORT/g;
+    $$thing =~ s/${prefix}HTTPTLS6PORT/$HTTPTLS6PORT/g;
+    $$thing =~ s/${prefix}HTTPTLSPORT/$HTTPTLSPORT/g;
+    $$thing =~ s/${prefix}HTTP6PORT/$HTTP6PORT/g;
+    $$thing =~ s/${prefix}HTTPSPORT/$HTTPSPORT/g;
+    $$thing =~ s/${prefix}HTTPSPROXYPORT/$HTTPSPROXYPORT/g;
+    $$thing =~ s/${prefix}HTTP2PORT/$HTTP2PORT/g;
+    $$thing =~ s/${prefix}HTTPPORT/$HTTPPORT/g;
+    $$thing =~ s/${prefix}PROXYPORT/$HTTPPROXYPORT/g;
+    $$thing =~ s/${prefix}MQTTPORT/$MQTTPORT/g;
+    $$thing =~ s/${prefix}IMAP6PORT/$IMAP6PORT/g;
+    $$thing =~ s/${prefix}IMAPPORT/$IMAPPORT/g;
+    $$thing =~ s/${prefix}POP36PORT/$POP36PORT/g;
+    $$thing =~ s/${prefix}POP3PORT/$POP3PORT/g;
+    $$thing =~ s/${prefix}RTSP6PORT/$RTSP6PORT/g;
+    $$thing =~ s/${prefix}RTSPPORT/$RTSPPORT/g;
+    $$thing =~ s/${prefix}SMTP6PORT/$SMTP6PORT/g;
+    $$thing =~ s/${prefix}SMTPPORT/$SMTPPORT/g;
+    $$thing =~ s/${prefix}SOCKSPORT/$SOCKSPORT/g;
+    $$thing =~ s/${prefix}SSHPORT/$SSHPORT/g;
+    $$thing =~ s/${prefix}TFTP6PORT/$TFTP6PORT/g;
+    $$thing =~ s/${prefix}TFTPPORT/$TFTPPORT/g;
+    $$thing =~ s/${prefix}DICTPORT/$DICTPORT/g;
+    $$thing =~ s/${prefix}SMBPORT/$SMBPORT/g;
+    $$thing =~ s/${prefix}SMBSPORT/$SMBSPORT/g;
+    $$thing =~ s/${prefix}TELNETPORT/$TELNETPORT/g;
+    $$thing =~ s/${prefix}NOLISTENPORT/$NOLISTENPORT/g;
+
+    # server Unix domain socket paths
+    $$thing =~ s/${prefix}HTTPUNIXPATH/$HTTPUNIXPATH/g;
+    $$thing =~ s/${prefix}SOCKSUNIXPATH/$SOCKSUNIXPATH/g;
+
+    # client IP addresses
+    $$thing =~ s/${prefix}CLIENT6IP/$CLIENT6IP/g;
+    $$thing =~ s/${prefix}CLIENTIP/$CLIENTIP/g;
+
+    # server IP addresses
+    $$thing =~ s/${prefix}HOST6IP/$HOST6IP/g;
+    $$thing =~ s/${prefix}HOSTIP/$HOSTIP/g;
+
+    # misc
+    $$thing =~ s/${prefix}CURL/$CURL/g;
+    $$thing =~ s/${prefix}PWD/$pwd/g;
+    $$thing =~ s/${prefix}POSIX_PWD/$posix_pwd/g;
+    $$thing =~ s/${prefix}VERSION/$VERSION/g;
+    $$thing =~ s/${prefix}TESTNUMBER/$testnum/g;
+
+    my $file_pwd = $pwd;
+    if($file_pwd !~ /^\//) {
+        $file_pwd = "/$file_pwd";
+    }
+    my $ssh_pwd = $posix_pwd;
+    if ($sshdid && $sshdid =~ /OpenSSH-Windows/) {
+        $ssh_pwd = $file_pwd;
+    }
+
+    $$thing =~ s/${prefix}FILE_PWD/$file_pwd/g;
+    $$thing =~ s/${prefix}SSH_PWD/$ssh_pwd/g;
+    $$thing =~ s/${prefix}SRCDIR/$srcdir/g;
+    $$thing =~ s/${prefix}USER/$USER/g;
+
+    $$thing =~ s/${prefix}SSHSRVMD5/$SSHSRVMD5/g;
+    $$thing =~ s/${prefix}SSHSRVSHA256/$SSHSRVSHA256/g;
+
+    # The purpose of FTPTIME2 and FTPTIME3 is to provide times that can be
+    # used for time-out tests and that would work on most hosts as these
+    # adjust for the startup/check time for this particular host. We needed to
+    # do this to make the test suite run better on very slow hosts.
+    my $ftp2 = $ftpchecktime * 2;
+    my $ftp3 = $ftpchecktime * 3;
+
+    $$thing =~ s/${prefix}FTPTIME2/$ftp2/g;
+    $$thing =~ s/${prefix}FTPTIME3/$ftp3/g;
+
+    # HTTP2
+    $$thing =~ s/${prefix}H2CVER/$h2cver/g;
+}
+
+sub subBase64 {
+    my ($thing) = @_;
+
+    # cut out the base64 piece
+    if($$thing =~ s/%b64\[(.*)\]b64%/%%B64%%/i) {
+        my $d = $1;
+        # encode %NN characters
+        $d =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/eg;
+        my $enc = encode_base64($d, "");
+        # put the result into there
+        $$thing =~ s/%%B64%%/$enc/;
+    }
+    # hex decode
+    if($$thing =~ s/%hex\[(.*)\]hex%/%%HEX%%/i) {
+        # decode %NN characters
+        my $d = $1;
+        $d =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/eg;
+        $$thing =~ s/%%HEX%%/$d/;
+    }
+    if($$thing =~ s/%repeat\[(\d+) x (.*)\]%/%%REPEAT%%/i) {
+        # decode %NN characters
+        my ($d, $n) = ($2, $1);
+        $d =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/eg;
+        my $all = $d x $n;
+        $$thing =~ s/%%REPEAT%%/$all/;
+    }
+}
+
+my $prevupdate;
+sub subNewlines {
+    my ($thing) = @_;
+
+    # When curl is built with Hyper, it gets all response headers delivered as
+    # name/value pairs and curl "invents" the newlines when it saves the
+    # headers. Therefore, curl will always save headers with CRLF newlines
+    # when built to use Hyper. By making sure we deliver all tests using CRLF
+    # as well, all test comparisons will survive without knowing about this
+    # little quirk.
+
+    if(($$thing =~ /^HTTP\/(1.1|1.0|2) [1-5][^\x0d]*\z/) ||
+       (($$thing =~ /^[a-z0-9_-]+: [^\x0d]*\z/i) &&
+        # skip curl error messages
+        ($$thing !~ /^curl: \(\d+\) /))) {
+        # enforce CRLF newline
+        $$thing =~ s/\x0a/\x0d\x0a/;
+        $prevupdate = 1;
+    }
+    else {
+        if(($$thing =~ /^\n\z/) && $prevupdate) {
+            # if there's a blank link after a line we update, we hope it is
+            # the empty line following headers
+            $$thing =~ s/\x0a/\x0d\x0a/;
+        }
+        $prevupdate = 0;
+    }
+}
+
+#######################################################################
+# Provide time stamps for single test skipped events
+#
+sub timestampskippedevents {
+    my $testnum = $_[0];
+
+    return if((not defined($testnum)) || ($testnum < 1));
+
+    if($timestats) {
+
+        if($timevrfyend{$testnum}) {
+            return;
+        }
+        elsif($timesrvrlog{$testnum}) {
+            $timevrfyend{$testnum} = $timesrvrlog{$testnum};
+            return;
+        }
+        elsif($timetoolend{$testnum}) {
+            $timevrfyend{$testnum} = $timetoolend{$testnum};
+            $timesrvrlog{$testnum} = $timetoolend{$testnum};
+        }
+        elsif($timetoolini{$testnum}) {
+            $timevrfyend{$testnum} = $timetoolini{$testnum};
+            $timesrvrlog{$testnum} = $timetoolini{$testnum};
+            $timetoolend{$testnum} = $timetoolini{$testnum};
+        }
+        elsif($timesrvrend{$testnum}) {
+            $timevrfyend{$testnum} = $timesrvrend{$testnum};
+            $timesrvrlog{$testnum} = $timesrvrend{$testnum};
+            $timetoolend{$testnum} = $timesrvrend{$testnum};
+            $timetoolini{$testnum} = $timesrvrend{$testnum};
+        }
+        elsif($timesrvrini{$testnum}) {
+            $timevrfyend{$testnum} = $timesrvrini{$testnum};
+            $timesrvrlog{$testnum} = $timesrvrini{$testnum};
+            $timetoolend{$testnum} = $timesrvrini{$testnum};
+            $timetoolini{$testnum} = $timesrvrini{$testnum};
+            $timesrvrend{$testnum} = $timesrvrini{$testnum};
+        }
+        elsif($timeprepini{$testnum}) {
+            $timevrfyend{$testnum} = $timeprepini{$testnum};
+            $timesrvrlog{$testnum} = $timeprepini{$testnum};
+            $timetoolend{$testnum} = $timeprepini{$testnum};
+            $timetoolini{$testnum} = $timeprepini{$testnum};
+            $timesrvrend{$testnum} = $timeprepini{$testnum};
+            $timesrvrini{$testnum} = $timeprepini{$testnum};
+        }
+    }
+}
+
+#
+# 'prepro' processes the input array and replaces %-variables in the array
+# etc. Returns the processed version of the array
+
+sub prepro {
+    my $testnum = shift;
+    my (@entiretest) = @_;
+    my $show = 1;
+    my @out;
+    for my $s (@entiretest) {
+        my $f = $s;
+        if($s =~ /^ *%if (.*)/) {
+            my $cond = $1;
+            my $rev = 0;
+
+            if($cond =~ /^!(.*)/) {
+                $cond = $1;
+                $rev = 1;
+            }
+            $rev ^= $feature{$cond} ? 1 : 0;
+            $show = $rev;
+            next;
+        }
+        elsif($s =~ /^ *%else/) {
+            $show ^= 1;
+            next;
+        }
+        elsif($s =~ /^ *%endif/) {
+            $show = 1;
+            next;
+        }
+        if($show) {
+            subVariables(\$s, $testnum, "%");
+            subBase64(\$s);
+            subNewlines(\$s) if($has_hyper && ($keywords{"HTTP"} ||
+                                               $keywords{"HTTPS"}));
+            push @out, $s;
+        }
+    }
+    return @out;
+}
+
+#######################################################################
+# Run a single specified test case
+#
+sub singletest {
+    my ($evbased, # 1 means switch on if possible (and "curl" is tested)
+                  # returns "not a test" if it can't be used for this test
+        $testnum,
+        $count,
+        $total)=@_;
+
+    my @what;
+    my $why;
+    my $cmd;
+    my $disablevalgrind;
+    my $errorreturncode = 1; # 1 means normal error, 2 means ignored error
+
+    # fist, remove all lingering log files
+    if(!cleardir($LOGDIR) && $clearlocks) {
+        clearlocks($LOGDIR);
+        cleardir($LOGDIR);
+    }
+
+    # copy test number to a global scope var, this allows
+    # testnum checking when starting test harness servers.
+    $testnumcheck = $testnum;
+
+    # timestamp test preparation start
+    $timeprepini{$testnum} = Time::HiRes::time();
+
+    if($disttests !~ /test$testnum(\W|\z)/ ) {
+        logmsg "Warning: test$testnum not present in tests/data/Makefile.inc\n";
+    }
+    if($disabled{$testnum}) {
+        if(!$run_disabeled) {
+            $why = "listed in DISABLED";
+        }
+        else {
+            logmsg "Warning: test$testnum is explicitly disabled\n";
+        }
+    }
+    if($ignored{$testnum}) {
+        logmsg "Warning: test$testnum result is ignored\n";
+        $errorreturncode = 2;
+    }
+
+    # load the test case file definition
+    if(loadtest("${TESTDIR}/test${testnum}")) {
+        if($verbose) {
+            # this is not a test
+            logmsg "RUN: $testnum doesn't look like a test case\n";
+        }
+        $why = "no test";
+    }
+    else {
+        @what = getpart("client", "features");
+    }
+
+    # We require a feature to be present
+    for(@what) {
+        my $f = $_;
+        $f =~ s/\s//g;
+
+        if($f =~ /^([^!].*)$/) {
+            if($feature{$1}) {
+                next;
+            }
+
+            $why = "curl lacks $1 support";
+            last;
+        }
+    }
+
+    # We require a feature to not be present
+    if(!$why) {
+        for(@what) {
+            my $f = $_;
+            $f =~ s/\s//g;
+
+            if($f =~ /^!(.*)$/) {
+                if(!$feature{$1}) {
+                    next;
+                }
+            }
+            else {
+                next;
+            }
+
+            $why = "curl has $1 support";
+            last;
+        }
+    }
+
+    if(!$why) {
+        my @info_keywords = getpart("info", "keywords");
+        my $match;
+        my $k;
+
+        # Clear the list of keywords from the last test
+        %keywords = ();
+
+        if(!$info_keywords[0]) {
+            $why = "missing the <keywords> section!";
+        }
+
+        for $k (@info_keywords) {
+            chomp $k;
+            if ($disabled_keywords{lc($k)}) {
+                $why = "disabled by keyword";
+            } elsif ($enabled_keywords{lc($k)}) {
+                $match = 1;
+            }
+            if ($ignored_keywords{lc($k)}) {
+                logmsg "Warning: test$testnum result is ignored due to $k\n";
+                $errorreturncode = 2;
+            }
+
+            $keywords{$k} = 1;
+        }
+
+        if(!$why && !$match && %enabled_keywords) {
+            $why = "disabled by missing keyword";
+        }
+    }
+
+    if (!$why && defined $custom_skip_reasons{test}{$testnum}) {
+        $why = $custom_skip_reasons{test}{$testnum};
+    }
+
+    if (!$why && defined $custom_skip_reasons{tool}) {
+        foreach my $tool (getpart("client", "tool")) {
+            foreach my $tool_skip_pattern (keys %{$custom_skip_reasons{tool}}) {
+                if ($tool =~ /$tool_skip_pattern/i) {
+                    $why = $custom_skip_reasons{tool}{$tool_skip_pattern};
+                }
+            }
+        }
+    }
+
+    if (!$why && defined $custom_skip_reasons{keyword}) {
+        foreach my $keyword (getpart("info", "keywords")) {
+            foreach my $keyword_skip_pattern (keys %{$custom_skip_reasons{keyword}}) {
+                if ($keyword =~ /$keyword_skip_pattern/i) {
+                    $why = $custom_skip_reasons{keyword}{$keyword_skip_pattern};
+                }
+            }
+        }
+    }
+
+
+    # test definition may instruct to (un)set environment vars
+    # this is done this early, so that the precheck can use environment
+    # variables and still bail out fine on errors
+
+    # restore environment variables that were modified in a previous run
+    foreach my $var (keys %oldenv) {
+        if($oldenv{$var} eq 'notset') {
+            delete $ENV{$var} if($ENV{$var});
+        }
+        else {
+            $ENV{$var} = $oldenv{$var};
+        }
+        delete $oldenv{$var};
+    }
+
+    # get the name of the test early
+    my @testname= getpart("client", "name");
+    my $testname = $testname[0];
+    $testname =~ s/\n//g;
+
+    # create test result in CI services
+    if(azure_check_environment() && $AZURE_RUN_ID) {
+        $AZURE_RESULT_ID = azure_create_test_result($ACURL, $AZURE_RUN_ID, $testnum, $testname);
+    }
+    elsif(appveyor_check_environment()) {
+        appveyor_create_test_result($ACURL, $testnum, $testname);
+    }
+
+    # remove test server commands file before servers are started/verified
+    unlink($FTPDCMD) if(-f $FTPDCMD);
+
+    # timestamp required servers verification start
+    $timesrvrini{$testnum} = Time::HiRes::time();
+
+    if(!$why) {
+        $why = serverfortest($testnum);
+    }
+
+    # Save a preprocessed version of the entire test file. This allows more
+    # "basic" test case readers to enjoy variable replacements.
+    my @entiretest = fulltest();
+    my $otest = "log/test$testnum";
+
+    @entiretest = prepro($testnum, @entiretest);
+
+    # save the new version
+    open(D, ">$otest");
+    foreach my $bytes (@entiretest) {
+        print D pack('a*', $bytes) or die "Failed to print '$bytes': $!";
+    }
+    close(D);
+
+    # in case the process changed the file, reload it
+    loadtest("log/test${testnum}");
+
+    # timestamp required servers verification end
+    $timesrvrend{$testnum} = Time::HiRes::time();
+
+    my @setenv = getpart("client", "setenv");
+    if(@setenv) {
+        foreach my $s (@setenv) {
+            chomp $s;
+            if($s =~ /([^=]*)=(.*)/) {
+                my ($var, $content) = ($1, $2);
+                # remember current setting, to restore it once test runs
+                $oldenv{$var} = ($ENV{$var})?"$ENV{$var}":'notset';
+                # set new value
+                if(!$content) {
+                    delete $ENV{$var} if($ENV{$var});
+                }
+                else {
+                    if($var =~ /^LD_PRELOAD/) {
+                        if(exe_ext('TOOL') && (exe_ext('TOOL') eq '.exe')) {
+                            # print "Skipping LD_PRELOAD due to lack of OS support\n";
+                            next;
+                        }
+                        if($debug_build || ($has_shared ne "yes")) {
+                            # print "Skipping LD_PRELOAD due to no release shared build\n";
+                            next;
+                        }
+                    }
+                    $ENV{$var} = "$content";
+                    print "setenv $var = $content\n" if($verbose);
+                }
+            }
+        }
+    }
+    if($use_external_proxy) {
+        $ENV{http_proxy} = $proxy_address;
+        $ENV{HTTPS_PROXY} = $proxy_address;
+    }
+
+    if(!$why) {
+        my @precheck = getpart("client", "precheck");
+        if(@precheck) {
+            $cmd = $precheck[0];
+            chomp $cmd;
+            if($cmd) {
+                my @p = split(/ /, $cmd);
+                if($p[0] !~ /\//) {
+                    # the first word, the command, does not contain a slash so
+                    # we will scan the "improved" PATH to find the command to
+                    # be able to run it
+                    my $fullp = checktestcmd($p[0]);
+
+                    if($fullp) {
+                        $p[0] = $fullp;
+                    }
+                    $cmd = join(" ", @p);
+                }
+
+                my @o = `$cmd 2>log/precheck-$testnum`;
+                if($o[0]) {
+                    $why = $o[0];
+                    chomp $why;
+                } elsif($?) {
+                    $why = "precheck command error";
+                }
+                logmsg "prechecked $cmd\n" if($verbose);
+            }
+        }
+    }
+
+    if($why && !$listonly) {
+        # there's a problem, count it as "skipped"
+        $skipped++;
+        $skipped{$why}++;
+        $teststat[$testnum]=$why; # store reason for this test case
+
+        if(!$short) {
+            if($skipped{$why} <= 3) {
+                # show only the first three skips for each reason
+                logmsg sprintf("test %04d SKIPPED: $why\n", $testnum);
+            }
+        }
+
+        timestampskippedevents($testnum);
+        return -1;
+    }
+    logmsg sprintf("test %04d...", $testnum) if(!$automakestyle);
+
+    my %replyattr = getpartattr("reply", "data");
+    my @reply;
+    if (partexists("reply", "datacheck")) {
+        for my $partsuffix (('', '1', '2', '3', '4')) {
+            my @replycheckpart = getpart("reply", "datacheck".$partsuffix);
+            if(@replycheckpart) {
+                my %replycheckpartattr = getpartattr("reply", "datacheck".$partsuffix);
+                # get the mode attribute
+                my $filemode=$replycheckpartattr{'mode'};
+                if($filemode && ($filemode eq "text") && $has_textaware) {
+                    # text mode when running on windows: fix line endings
+                    map s/\r\n/\n/g, @replycheckpart;
+                    map s/\n/\r\n/g, @replycheckpart;
+                }
+                if($replycheckpartattr{'nonewline'}) {
+                    # Yes, we must cut off the final newline from the final line
+                    # of the datacheck
+                    chomp($replycheckpart[$#replycheckpart]);
+                }
+                push(@reply, @replycheckpart);
+            }
+        }
+    }
+    else {
+        # check against the data section
+        @reply = getpart("reply", "data");
+        if(@reply) {
+            my %hash = getpartattr("reply", "data");
+            if($hash{'nonewline'}) {
+                # cut off the final newline from the final line of the data
+                chomp($reply[$#reply]);
+            }
+        }
+        # get the mode attribute
+        my $filemode=$replyattr{'mode'};
+        if($filemode && ($filemode eq "text") && $has_textaware) {
+            # text mode when running on windows: fix line endings
+            map s/\r\n/\n/g, @reply;
+            map s/\n/\r\n/g, @reply;
+        }
+    }
+
+    # this is the valid protocol blurb curl should generate
+    my @protocol= getpart("verify", "protocol");
+
+    # this is the valid protocol blurb curl should generate to a proxy
+    my @proxyprot = getpart("verify", "proxy");
+
+    # redirected stdout/stderr to these files
+    $STDOUT="$LOGDIR/stdout$testnum";
+    $STDERR="$LOGDIR/stderr$testnum";
+
+    # if this section exists, we verify that the stdout contained this:
+    my @validstdout = getpart("verify", "stdout");
+    my @validstderr = getpart("verify", "stderr");
+
+    # if this section exists, we verify upload
+    my @upload = getpart("verify", "upload");
+    if(@upload) {
+      my %hash = getpartattr("verify", "upload");
+      if($hash{'nonewline'}) {
+          # cut off the final newline from the final line of the upload data
+          chomp($upload[$#upload]);
+      }
+    }
+
+    # if this section exists, it might be FTP server instructions:
+    my @ftpservercmd = getpart("reply", "servercmd");
+
+    my $CURLOUT="$LOGDIR/curl$testnum.out"; # curl output if not stdout
+
+    # name of the test
+    logmsg "[$testname]\n" if(!$short);
+
+    if($listonly) {
+        timestampskippedevents($testnum);
+        return 0; # look successful
+    }
+
+    my @codepieces = getpart("client", "tool");
+
+    my $tool="";
+    if(@codepieces) {
+        $tool = $codepieces[0];
+        chomp $tool;
+        $tool .= exe_ext('TOOL');
+    }
+
+    # remove server output logfile
+    unlink($SERVERIN);
+    unlink($SERVER2IN);
+    unlink($PROXYIN);
+
+    push @ftpservercmd, "Testnum $testnum\n";
+    # write the instructions to file
+    writearray($FTPDCMD, \@ftpservercmd);
+
+    # get the command line options to use
+    my @blaha;
+    ($cmd, @blaha)= getpart("client", "command");
+
+    if($cmd) {
+        # make some nice replace operations
+        $cmd =~ s/\n//g; # no newlines please
+        # substitute variables in the command line
+    }
+    else {
+        # there was no command given, use something silly
+        $cmd="-";
+    }
+    if($has_memory_tracking) {
+        unlink($memdump);
+    }
+
+    # create (possibly-empty) files before starting the test
+    for my $partsuffix (('', '1', '2', '3', '4')) {
+        my @inputfile=getpart("client", "file".$partsuffix);
+        my %fileattr = getpartattr("client", "file".$partsuffix);
+        my $filename=$fileattr{'name'};
+        if(@inputfile || $filename) {
+            if(!$filename) {
+                logmsg "ERROR: section client=>file has no name attribute\n";
+                timestampskippedevents($testnum);
+                return -1;
+            }
+            my $fileContent = join('', @inputfile);
+
+            # make directories if needed
+            my $path = $filename;
+            # cut off the file name part
+            $path =~ s/^(.*)\/[^\/]*/$1/;
+            my @parts = split(/\//, $path);
+            if($parts[0] eq "log") {
+                # the file is in log/
+                my $d = shift @parts;
+                for(@parts) {
+                    $d .= "/$_";
+                    mkdir $d; # 0777
+                }
+            }
+            open(OUTFILE, ">$filename");
+            binmode OUTFILE; # for crapage systems, use binary
+            if($fileattr{'nonewline'}) {
+                # cut off the final newline
+                chomp($fileContent);
+            }
+            print OUTFILE $fileContent;
+            close(OUTFILE);
+        }
+    }
+
+    my %cmdhash = getpartattr("client", "command");
+
+    my $out="";
+
+    if((!$cmdhash{'option'}) || ($cmdhash{'option'} !~ /no-output/)) {
+        #We may slap on --output!
+        if (!@validstdout ||
+                ($cmdhash{'option'} && $cmdhash{'option'} =~ /force-output/)) {
+            $out=" --output $CURLOUT ";
+        }
+    }
+
+    my $serverlogslocktimeout = $defserverlogslocktimeout;
+    if($cmdhash{'timeout'}) {
+        # test is allowed to override default server logs lock timeout
+        if($cmdhash{'timeout'} =~ /(\d+)/) {
+            $serverlogslocktimeout = $1 if($1 >= 0);
+        }
+    }
+
+    my $postcommanddelay = $defpostcommanddelay;
+    if($cmdhash{'delay'}) {
+        # test is allowed to specify a delay after command is executed
+        if($cmdhash{'delay'} =~ /(\d+)/) {
+            $postcommanddelay = $1 if($1 > 0);
+        }
+    }
+
+    my $CMDLINE;
+    my $cmdargs;
+    my $cmdtype = $cmdhash{'type'} || "default";
+    my $fail_due_event_based = $evbased;
+    if($cmdtype eq "perl") {
+        # run the command line prepended with "perl"
+        $cmdargs ="$cmd";
+        $CMDLINE = "$perl ";
+        $tool=$CMDLINE;
+        $disablevalgrind=1;
+    }
+    elsif($cmdtype eq "shell") {
+        # run the command line prepended with "/bin/sh"
+        $cmdargs ="$cmd";
+        $CMDLINE = "/bin/sh ";
+        $tool=$CMDLINE;
+        $disablevalgrind=1;
+    }
+    elsif(!$tool && !$keywords{"unittest"}) {
+        # run curl, add suitable command line options
+        my $inc="";
+        if((!$cmdhash{'option'}) || ($cmdhash{'option'} !~ /no-include/)) {
+            $inc = " --include";
+        }
+        $cmdargs = "$out$inc ";
+
+        if($cmdhash{'option'} && ($cmdhash{'option'} =~ /binary-trace/)) {
+            $cmdargs .= "--trace log/trace$testnum ";
+        }
+        else {
+            $cmdargs .= "--trace-ascii log/trace$testnum ";
+        }
+        $cmdargs .= "--trace-time ";
+        if($evbased) {
+            $cmdargs .= "--test-event ";
+            $fail_due_event_based--;
+        }
+        $cmdargs .= $cmd;
+        if ($use_external_proxy) {
+            $cmdargs .= " --proxy $proxy_address ";
+        }
+    }
+    else {
+        $cmdargs = " $cmd"; # $cmd is the command line for the test file
+        $CURLOUT = $STDOUT; # sends received data to stdout
+
+        # Default the tool to a unit test with the same name as the test spec
+        if($keywords{"unittest"} && !$tool) {
+            $tool="unit$testnum";
+        }
+
+        if($tool =~ /^lib/) {
+            $CMDLINE="$LIBDIR/$tool";
+        }
+        elsif($tool =~ /^unit/) {
+            $CMDLINE="$UNITDIR/$tool";
+        }
+
+        if(! -f $CMDLINE) {
+            logmsg "The tool set in the test case for this: '$tool' does not exist\n";
+            timestampskippedevents($testnum);
+            return -1;
+        }
+        $DBGCURL=$CMDLINE;
+    }
+
+    if($fail_due_event_based) {
+        logmsg "This test cannot run event based\n";
+        timestampskippedevents($testnum);
+        return -1;
+    }
+
+    if($gdbthis) {
+        # gdb is incompatible with valgrind, so disable it when debugging
+        # Perhaps a better approach would be to run it under valgrind anyway
+        # with --db-attach=yes or --vgdb=yes.
+        $disablevalgrind=1;
+    }
+
+    my @stdintest = getpart("client", "stdin");
+
+    if(@stdintest) {
+        my $stdinfile="$LOGDIR/stdin-for-$testnum";
+
+        my %hash = getpartattr("client", "stdin");
+        if($hash{'nonewline'}) {
+            # cut off the final newline from the final line of the stdin data
+            chomp($stdintest[$#stdintest]);
+        }
+
+        writearray($stdinfile, \@stdintest);
+
+        $cmdargs .= " <$stdinfile";
+    }
+
+    if(!$tool) {
+        $CMDLINE="$CURL";
+    }
+
+    my $usevalgrind;
+    if($valgrind && !$disablevalgrind) {
+        my @valgrindoption = getpart("verify", "valgrind");
+        if((!@valgrindoption) || ($valgrindoption[0] !~ /disable/)) {
+            $usevalgrind = 1;
+            my $valgrindcmd = "$valgrind ";
+            $valgrindcmd .= "$valgrind_tool " if($valgrind_tool);
+            $valgrindcmd .= "--quiet --leak-check=yes ";
+            $valgrindcmd .= "--suppressions=$srcdir/valgrind.supp ";
+           # $valgrindcmd .= "--gen-suppressions=all ";
+            $valgrindcmd .= "--num-callers=16 ";
+            $valgrindcmd .= "${valgrind_logfile}=$LOGDIR/valgrind$testnum";
+            $CMDLINE = "$valgrindcmd $CMDLINE";
+        }
+    }
+
+    $CMDLINE .= "$cmdargs >$STDOUT 2>$STDERR";
+
+    if($verbose) {
+        logmsg "$CMDLINE\n";
+    }
+
+    open(CMDLOG, ">", "$LOGDIR/$CURLLOG");
+    print CMDLOG "$CMDLINE\n";
+    close(CMDLOG);
+
+    unlink("core");
+
+    my $dumped_core;
+    my $cmdres;
+
+    if($gdbthis) {
+        my $gdbinit = "$TESTDIR/gdbinit$testnum";
+        open(GDBCMD, ">$LOGDIR/gdbcmd");
+        print GDBCMD "set args $cmdargs\n";
+        print GDBCMD "show args\n";
+        print GDBCMD "source $gdbinit\n" if -e $gdbinit;
+        close(GDBCMD);
+    }
+
+    # Flush output.
+    $| = 1;
+
+    # timestamp starting of test command
+    $timetoolini{$testnum} = Time::HiRes::time();
+
+    # run the command line we built
+    if ($torture) {
+        $cmdres = torture($CMDLINE,
+                          $testnum,
+                          "$gdb --directory $LIBDIR $DBGCURL -x $LOGDIR/gdbcmd");
+    }
+    elsif($gdbthis) {
+        my $GDBW = ($gdbxwin) ? "-w" : "";
+        runclient("$gdb --directory $LIBDIR $DBGCURL $GDBW -x $LOGDIR/gdbcmd");
+        $cmdres=0; # makes it always continue after a debugged run
+    }
+    else {
+        $cmdres = runclient("$CMDLINE");
+        my $signal_num  = $cmdres & 127;
+        $dumped_core = $cmdres & 128;
+
+        if(!$anyway && ($signal_num || $dumped_core)) {
+            $cmdres = 1000;
+        }
+        else {
+            $cmdres >>= 8;
+            $cmdres = (2000 + $signal_num) if($signal_num && !$cmdres);
+        }
+    }
+
+    # timestamp finishing of test command
+    $timetoolend{$testnum} = Time::HiRes::time();
+
+    if(!$dumped_core) {
+        if(-r "core") {
+            # there's core file present now!
+            $dumped_core = 1;
+        }
+    }
+
+    if($dumped_core) {
+        logmsg "core dumped\n";
+        if(0 && $gdb) {
+            logmsg "running gdb for post-mortem analysis:\n";
+            open(GDBCMD, ">$LOGDIR/gdbcmd2");
+            print GDBCMD "bt\n";
+            close(GDBCMD);
+            runclient("$gdb --directory libtest -x $LOGDIR/gdbcmd2 -batch $DBGCURL core ");
+     #       unlink("$LOGDIR/gdbcmd2");
+        }
+    }
+
+    # If a server logs advisor read lock file exists, it is an indication
+    # that the server has not yet finished writing out all its log files,
+    # including server request log files used for protocol verification.
+    # So, if the lock file exists the script waits here a certain amount
+    # of time until the server removes it, or the given time expires.
+
+    if($serverlogslocktimeout) {
+        my $lockretry = $serverlogslocktimeout * 20;
+        while((-f $SERVERLOGS_LOCK) && $lockretry--) {
+            portable_sleep(0.05);
+        }
+        if(($lockretry < 0) &&
+           ($serverlogslocktimeout >= $defserverlogslocktimeout)) {
+            logmsg "Warning: server logs lock timeout ",
+                   "($serverlogslocktimeout seconds) expired\n";
+        }
+    }
+
+    # Test harness ssh server does not have this synchronization mechanism,
+    # this implies that some ssh server based tests might need a small delay
+    # once that the client command has run to avoid false test failures.
+    #
+    # gnutls-serv also lacks this synchronization mechanism, so gnutls-serv
+    # based tests might need a small delay once that the client command has
+    # run to avoid false test failures.
+
+    portable_sleep($postcommanddelay) if($postcommanddelay);
+
+    # timestamp removal of server logs advisor read lock
+    $timesrvrlog{$testnum} = Time::HiRes::time();
+
+    # test definition might instruct to stop some servers
+    # stop also all servers relative to the given one
+
+    my @killtestservers = getpart("client", "killserver");
+    if(@killtestservers) {
+        foreach my $server (@killtestservers) {
+            chomp $server;
+            if(stopserver($server)) {
+                return 1; # normal error if asked to fail on unexpected alive
+            }
+        }
+    }
+
+    # run the postcheck command
+    my @postcheck= getpart("client", "postcheck");
+    if(@postcheck) {
+        $cmd = join("", @postcheck);
+        chomp $cmd;
+        if($cmd) {
+            logmsg "postcheck $cmd\n" if($verbose);
+            my $rc = runclient("$cmd");
+            # Must run the postcheck command in torture mode in order
+            # to clean up, but the result can't be relied upon.
+            if($rc != 0 && !$torture) {
+                logmsg " postcheck FAILED\n";
+                # timestamp test result verification end
+                $timevrfyend{$testnum} = Time::HiRes::time();
+                return $errorreturncode;
+            }
+        }
+    }
+
+    # restore environment variables that were modified
+    if(%oldenv) {
+        foreach my $var (keys %oldenv) {
+            if($oldenv{$var} eq 'notset') {
+                delete $ENV{$var} if($ENV{$var});
+            }
+            else {
+                $ENV{$var} = "$oldenv{$var}";
+            }
+        }
+    }
+
+    # Skip all the verification on torture tests
+    if ($torture) {
+        # timestamp test result verification end
+        $timevrfyend{$testnum} = Time::HiRes::time();
+        return $cmdres;
+    }
+
+    my @err = getpart("verify", "errorcode");
+    my $errorcode = $err[0] || "0";
+    my $ok="";
+    my $res;
+    chomp $errorcode;
+    if (@validstdout) {
+        # verify redirected stdout
+        my @actual = loadarray($STDOUT);
+
+        # what parts to cut off from stdout
+        my @stripfile = getpart("verify", "stripfile");
+
+        foreach my $strip (@stripfile) {
+            chomp $strip;
+            my @newgen;
+            for(@actual) {
+                eval $strip;
+                if($_) {
+                    push @newgen, $_;
+                }
+            }
+            # this is to get rid of array entries that vanished (zero
+            # length) because of replacements
+            @actual = @newgen;
+        }
+
+        # get all attributes
+        my %hash = getpartattr("verify", "stdout");
+
+        # get the mode attribute
+        my $filemode=$hash{'mode'};
+        if($filemode && ($filemode eq "text") && $has_textaware) {
+            # text mode when running on windows: fix line endings
+            map s/\r\n/\n/g, @validstdout;
+            map s/\n/\r\n/g, @validstdout;
+        }
+
+        if($hash{'nonewline'}) {
+            # Yes, we must cut off the final newline from the final line
+            # of the protocol data
+            chomp($validstdout[$#validstdout]);
+        }
+
+        $res = compare($testnum, $testname, "stdout", \@actual, \@validstdout);
+        if($res) {
+            return $errorreturncode;
+        }
+        $ok .= "s";
+    }
+    else {
+        $ok .= "-"; # stdout not checked
+    }
+
+    if (@validstderr) {
+        # verify redirected stderr
+        my @actual = loadarray($STDERR);
+
+        # what parts to cut off from stderr
+        my @stripfile = getpart("verify", "stripfile");
+
+        foreach my $strip (@stripfile) {
+            chomp $strip;
+            my @newgen;
+            for(@actual) {
+                eval $strip;
+                if($_) {
+                    push @newgen, $_;
+                }
+            }
+            # this is to get rid of array entries that vanished (zero
+            # length) because of replacements
+            @actual = @newgen;
+        }
+
+        # get all attributes
+        my %hash = getpartattr("verify", "stderr");
+
+        # get the mode attribute
+        my $filemode=$hash{'mode'};
+        if($filemode && ($filemode eq "text") && $has_hyper) {
+            # text mode check in hyper-mode. Sometimes necessary if the stderr
+            # data *looks* like HTTP and thus has gotten CRLF newlines
+            # mistakenly
+            map s/\r\n/\n/g, @validstderr;
+        }
+        if($filemode && ($filemode eq "text") && $has_textaware) {
+            # text mode when running on windows: fix line endings
+            map s/\r\n/\n/g, @validstderr;
+            map s/\n/\r\n/g, @validstderr;
+        }
+
+        if($hash{'nonewline'}) {
+            # Yes, we must cut off the final newline from the final line
+            # of the protocol data
+            chomp($validstderr[$#validstderr]);
+        }
+
+        $res = compare($testnum, $testname, "stderr", \@actual, \@validstderr);
+        if($res) {
+            return $errorreturncode;
+        }
+        $ok .= "r";
+    }
+    else {
+        $ok .= "-"; # stderr not checked
+    }
+
+    if(@protocol) {
+        # Verify the sent request
+        my @out = loadarray($SERVERIN);
+
+        # what to cut off from the live protocol sent by curl
+        my @strip = getpart("verify", "strip");
+
+        my @protstrip=@protocol;
+
+        # check if there's any attributes on the verify/protocol section
+        my %hash = getpartattr("verify", "protocol");
+
+        if($hash{'nonewline'}) {
+            # Yes, we must cut off the final newline from the final line
+            # of the protocol data
+            chomp($protstrip[$#protstrip]);
+        }
+
+        for(@strip) {
+            # strip off all lines that match the patterns from both arrays
+            chomp $_;
+            @out = striparray( $_, \@out);
+            @protstrip= striparray( $_, \@protstrip);
+        }
+
+        # what parts to cut off from the protocol
+        my @strippart = getpart("verify", "strippart");
+        my $strip;
+
+        for $strip (@strippart) {
+            chomp $strip;
+            for(@out) {
+                eval $strip;
+            }
+        }
+
+        if((!$out[0] || ($out[0] eq "")) && $protstrip[0]) {
+            logmsg "\n $testnum: protocol FAILED!\n".
+                " There was no content at all in the file $SERVERIN.\n".
+                " Server glitch? Total curl failure? Returned: $cmdres\n";
+            return $errorreturncode;
+        }
+
+        $res = compare($testnum, $testname, "protocol", \@out, \@protstrip);
+        if($res) {
+            return $errorreturncode;
+        }
+
+        $ok .= "p";
+
+    }
+    else {
+        $ok .= "-"; # protocol not checked
+    }
+
+    if(!$replyattr{'nocheck'} && (@reply || $replyattr{'sendzero'})) {
+        # verify the received data
+        my @out = loadarray($CURLOUT);
+        $res = compare($testnum, $testname, "data", \@out, \@reply);
+        if ($res) {
+            return $errorreturncode;
+        }
+        $ok .= "d";
+    }
+    else {
+        $ok .= "-"; # data not checked
+    }
+
+    if(@upload) {
+        # verify uploaded data
+        my @out = loadarray("$LOGDIR/upload.$testnum");
+
+        # what parts to cut off from the upload
+        my @strippart = getpart("verify", "strippart");
+        my $strip;
+        for $strip (@strippart) {
+            chomp $strip;
+            for(@out) {
+                eval $strip;
+            }
+        }
+
+        $res = compare($testnum, $testname, "upload", \@out, \@upload);
+        if ($res) {
+            return $errorreturncode;
+        }
+        $ok .= "u";
+    }
+    else {
+        $ok .= "-"; # upload not checked
+    }
+
+    if(@proxyprot) {
+        # Verify the sent proxy request
+        my @out = loadarray($PROXYIN);
+
+        # what to cut off from the live protocol sent by curl, we use the
+        # same rules as for <protocol>
+        my @strip = getpart("verify", "strip");
+
+        my @protstrip=@proxyprot;
+
+        # check if there's any attributes on the verify/protocol section
+        my %hash = getpartattr("verify", "proxy");
+
+        if($hash{'nonewline'}) {
+            # Yes, we must cut off the final newline from the final line
+            # of the protocol data
+            chomp($protstrip[$#protstrip]);
+        }
+
+        for(@strip) {
+            # strip off all lines that match the patterns from both arrays
+            chomp $_;
+            @out = striparray( $_, \@out);
+            @protstrip= striparray( $_, \@protstrip);
+        }
+
+        # what parts to cut off from the protocol
+        my @strippart = getpart("verify", "strippart");
+        my $strip;
+        for $strip (@strippart) {
+            chomp $strip;
+            for(@out) {
+                eval $strip;
+            }
+        }
+
+        $res = compare($testnum, $testname, "proxy", \@out, \@protstrip);
+        if($res) {
+            return $errorreturncode;
+        }
+
+        $ok .= "P";
+
+    }
+    else {
+        $ok .= "-"; # protocol not checked
+    }
+
+    my $outputok;
+    for my $partsuffix (('', '1', '2', '3', '4')) {
+        my @outfile=getpart("verify", "file".$partsuffix);
+        if(@outfile || partexists("verify", "file".$partsuffix) ) {
+            # we're supposed to verify a dynamically generated file!
+            my %hash = getpartattr("verify", "file".$partsuffix);
+
+            my $filename=$hash{'name'};
+            if(!$filename) {
+                logmsg "ERROR: section verify=>file$partsuffix ".
+                       "has no name attribute\n";
+                stopservers($verbose);
+                # timestamp test result verification end
+                $timevrfyend{$testnum} = Time::HiRes::time();
+                return -1;
+            }
+            my @generated=loadarray($filename);
+
+            # what parts to cut off from the file
+            my @stripfile = getpart("verify", "stripfile".$partsuffix);
+
+            my $filemode=$hash{'mode'};
+            if($filemode && ($filemode eq "text") && $has_textaware) {
+                # text mode when running on windows: fix line endings
+                map s/\r\n/\n/g, @outfile;
+                map s/\n/\r\n/g, @outfile;
+            }
+
+            my $strip;
+            for $strip (@stripfile) {
+                chomp $strip;
+                my @newgen;
+                for(@generated) {
+                    eval $strip;
+                    if($_) {
+                        push @newgen, $_;
+                    }
+                }
+                # this is to get rid of array entries that vanished (zero
+                # length) because of replacements
+                @generated = @newgen;
+            }
+
+            $res = compare($testnum, $testname, "output ($filename)",
+                           \@generated, \@outfile);
+            if($res) {
+                return $errorreturncode;
+            }
+
+            $outputok = 1; # output checked
+        }
+    }
+    $ok .= ($outputok) ? "o" : "-"; # output checked or not
+
+    # verify SOCKS proxy details
+    my @socksprot = getpart("verify", "socks");
+    if(@socksprot) {
+        # Verify the sent SOCKS proxy details
+        my @out = loadarray($SOCKSIN);
+        $res = compare($testnum, $testname, "socks", \@out, \@socksprot);
+        if($res) {
+            return $errorreturncode;
+        }
+    }
+
+    # accept multiple comma-separated error codes
+    my @splerr = split(/ *, */, $errorcode);
+    my $errok;
+    foreach my $e (@splerr) {
+        if($e == $cmdres) {
+            # a fine error code
+            $errok = 1;
+            last;
+        }
+    }
+
+    if($errok) {
+        $ok .= "e";
+    }
+    else {
+        if(!$short) {
+            logmsg sprintf("\n%s returned $cmdres, when expecting %s\n",
+                           (!$tool)?"curl":$tool, $errorcode);
+        }
+        logmsg " exit FAILED\n";
+        # timestamp test result verification end
+        $timevrfyend{$testnum} = Time::HiRes::time();
+        return $errorreturncode;
+    }
+
+    if($has_memory_tracking) {
+        if(! -f $memdump) {
+            logmsg "\n** ALERT! memory tracking with no output file?\n"
+                if(!$cmdtype eq "perl");
+        }
+        else {
+            my @memdata=`$memanalyze $memdump`;
+            my $leak=0;
+            for(@memdata) {
+                if($_ ne "") {
+                    # well it could be other memory problems as well, but
+                    # we call it leak for short here
+                    $leak=1;
+                }
+            }
+            if($leak) {
+                logmsg "\n** MEMORY FAILURE\n";
+                logmsg @memdata;
+                # timestamp test result verification end
+                $timevrfyend{$testnum} = Time::HiRes::time();
+                return $errorreturncode;
+            }
+            else {
+                $ok .= "m";
+            }
+        }
+    }
+    else {
+        $ok .= "-"; # memory not checked
+    }
+
+    if($valgrind) {
+        if($usevalgrind) {
+            unless(opendir(DIR, "$LOGDIR")) {
+                logmsg "ERROR: unable to read $LOGDIR\n";
+                # timestamp test result verification end
+                $timevrfyend{$testnum} = Time::HiRes::time();
+                return $errorreturncode;
+            }
+            my @files = readdir(DIR);
+            closedir(DIR);
+            my $vgfile;
+            foreach my $file (@files) {
+                if($file =~ /^valgrind$testnum(\..*|)$/) {
+                    $vgfile = $file;
+                    last;
+                }
+            }
+            if(!$vgfile) {
+                logmsg "ERROR: valgrind log file missing for test $testnum\n";
+                # timestamp test result verification end
+                $timevrfyend{$testnum} = Time::HiRes::time();
+                return $errorreturncode;
+            }
+            my @e = valgrindparse("$LOGDIR/$vgfile");
+            if(@e && $e[0]) {
+                if($automakestyle) {
+                    logmsg "FAIL: $testnum - $testname - valgrind\n";
+                }
+                else {
+                    logmsg " valgrind ERROR ";
+                    logmsg @e;
+                }
+                # timestamp test result verification end
+                $timevrfyend{$testnum} = Time::HiRes::time();
+                return $errorreturncode;
+            }
+            $ok .= "v";
+        }
+        else {
+            if($verbose && !$disablevalgrind) {
+                logmsg " valgrind SKIPPED\n";
+            }
+            $ok .= "-"; # skipped
+        }
+    }
+    else {
+        $ok .= "-"; # valgrind not checked
+    }
+    # add 'E' for event-based
+    $ok .= $evbased ? "E" : "-";
+
+    logmsg "$ok " if(!$short);
+
+    # timestamp test result verification end
+    $timevrfyend{$testnum} = Time::HiRes::time();
+
+    my $sofar= time()-$start;
+    my $esttotal = $sofar/$count * $total;
+    my $estleft = $esttotal - $sofar;
+    my $left=sprintf("remaining: %02d:%02d",
+                     $estleft/60,
+                     $estleft%60);
+    my $took = $timevrfyend{$testnum} - $timeprepini{$testnum};
+    my $duration = sprintf("duration: %02d:%02d",
+                           $sofar/60, $sofar%60);
+    if(!$automakestyle) {
+        logmsg sprintf("OK (%-3d out of %-3d, %s, took %.3fs, %s)\n",
+                       $count, $total, $left, $took, $duration);
+    }
+    else {
+        logmsg "PASS: $testnum - $testname\n";
+    }
+
+    if($errorreturncode==2) {
+        logmsg "Warning: test$testnum result is ignored, but passed!\n";
+    }
+
+    return 0;
+}
+
+#######################################################################
+# Stop all running test servers
+#
+sub stopservers {
+    my $verbose = $_[0];
+    #
+    # kill sockfilter processes for all pingpong servers
+    #
+    killallsockfilters($verbose);
+    #
+    # kill all server pids from %run hash clearing them
+    #
+    my $pidlist;
+    foreach my $server (keys %run) {
+        if($run{$server}) {
+            if($verbose) {
+                my $prev = 0;
+                my $pids = $run{$server};
+                foreach my $pid (split(' ', $pids)) {
+                    if($pid != $prev) {
+                        logmsg sprintf("* kill pid for %s => %d\n",
+                            $server, $pid);
+                        $prev = $pid;
+                    }
+                }
+            }
+            $pidlist .= "$run{$server} ";
+            $run{$server} = 0;
+        }
+        $runcert{$server} = 0 if($runcert{$server});
+    }
+    killpid($verbose, $pidlist);
+    #
+    # cleanup all server pid files
+    #
+    my $result = 0;
+    foreach my $server (keys %serverpidfile) {
+        my $pidfile = $serverpidfile{$server};
+        my $pid = processexists($pidfile);
+        if($pid > 0) {
+            if($err_unexpected) {
+                logmsg "ERROR: ";
+                $result = -1;
+            }
+            else {
+                logmsg "Warning: ";
+            }
+            logmsg "$server server unexpectedly alive\n";
+            killpid($verbose, $pid);
+        }
+        unlink($pidfile) if(-f $pidfile);
+    }
+
+    return $result;
+}
+
+#######################################################################
+# startservers() starts all the named servers
+#
+# Returns: string with error reason or blank for success
+#
+sub startservers {
+    my @what = @_;
+    my ($pid, $pid2);
+    for(@what) {
+        my (@whatlist) = split(/\s+/,$_);
+        my $what = lc($whatlist[0]);
+        $what =~ s/[^a-z0-9\/-]//g;
+
+        my $certfile;
+        if($what =~ /^(ftp|gopher|http|imap|pop3|smtp)s((\d*)(-ipv6|-unix|))$/) {
+            $certfile = ($whatlist[1]) ? $whatlist[1] : 'stunnel.pem';
+        }
+
+        if(($what eq "pop3") ||
+           ($what eq "ftp") ||
+           ($what eq "imap") ||
+           ($what eq "smtp")) {
+            if($torture && $run{$what} &&
+               !responsive_pingpong_server($what, "", $verbose)) {
+                if(stopserver($what)) {
+                    return "failed stopping unresponsive ".uc($what)." server";
+                }
+            }
+            if(!$run{$what}) {
+                ($pid, $pid2) = runpingpongserver($what, "", $verbose);
+                if($pid <= 0) {
+                    return "failed starting ". uc($what) ." server";
+                }
+                printf ("* pid $what => %d %d\n", $pid, $pid2) if($verbose);
+                $run{$what}="$pid $pid2";
+            }
+        }
+        elsif($what eq "ftp-ipv6") {
+            if($torture && $run{'ftp-ipv6'} &&
+               !responsive_pingpong_server("ftp", "", $verbose, "ipv6")) {
+                if(stopserver('ftp-ipv6')) {
+                    return "failed stopping unresponsive FTP-IPv6 server";
+                }
+            }
+            if(!$run{'ftp-ipv6'}) {
+                ($pid, $pid2) = runpingpongserver("ftp", "", $verbose, "ipv6");
+                if($pid <= 0) {
+                    return "failed starting FTP-IPv6 server";
+                }
+                logmsg sprintf("* pid ftp-ipv6 => %d %d\n", $pid,
+                       $pid2) if($verbose);
+                $run{'ftp-ipv6'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "gopher") {
+            if($torture && $run{'gopher'} &&
+               !responsive_http_server("gopher", $verbose, 0, $GOPHERPORT)) {
+                if(stopserver('gopher')) {
+                    return "failed stopping unresponsive GOPHER server";
+                }
+            }
+            if(!$run{'gopher'}) {
+                ($pid, $pid2, $GOPHERPORT) =
+                    runhttpserver("gopher", $verbose, 0);
+                if($pid <= 0) {
+                    return "failed starting GOPHER server";
+                }
+                logmsg sprintf ("* pid gopher => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'gopher'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "gopher-ipv6") {
+            if($torture && $run{'gopher-ipv6'} &&
+               !responsive_http_server("gopher", $verbose, "ipv6",
+                                       $GOPHER6PORT)) {
+                if(stopserver('gopher-ipv6')) {
+                    return "failed stopping unresponsive GOPHER-IPv6 server";
+                }
+            }
+            if(!$run{'gopher-ipv6'}) {
+                ($pid, $pid2, $GOPHER6PORT) =
+                    runhttpserver("gopher", $verbose, "ipv6");
+                if($pid <= 0) {
+                    return "failed starting GOPHER-IPv6 server";
+                }
+                logmsg sprintf("* pid gopher-ipv6 => %d %d\n", $pid,
+                               $pid2) if($verbose);
+                $run{'gopher-ipv6'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "http/2") {
+            if(!$run{'http/2'}) {
+                ($pid, $pid2, $HTTP2PORT) = runhttp2server($verbose);
+                if($pid <= 0) {
+                    return "failed starting HTTP/2 server";
+                }
+                logmsg sprintf ("* pid http/2 => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'http/2'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "http") {
+            if($torture && $run{'http'} &&
+               !responsive_http_server("http", $verbose, 0, $HTTPPORT)) {
+                if(stopserver('http')) {
+                    return "failed stopping unresponsive HTTP server";
+                }
+            }
+            if(!$run{'http'}) {
+                ($pid, $pid2, $HTTPPORT) =
+                    runhttpserver("http", $verbose, 0);
+                if($pid <= 0) {
+                    return "failed starting HTTP server";
+                }
+                logmsg sprintf ("* pid http => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'http'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "http-proxy") {
+            if($torture && $run{'http-proxy'} &&
+               !responsive_http_server("http", $verbose, "proxy",
+                                       $HTTPPROXYPORT)) {
+                if(stopserver('http-proxy')) {
+                    return "failed stopping unresponsive HTTP-proxy server";
+                }
+            }
+            if(!$run{'http-proxy'}) {
+                ($pid, $pid2, $HTTPPROXYPORT) =
+                    runhttpserver("http", $verbose, "proxy");
+                if($pid <= 0) {
+                    return "failed starting HTTP-proxy server";
+                }
+                logmsg sprintf ("* pid http-proxy => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'http-proxy'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "http-ipv6") {
+            if($torture && $run{'http-ipv6'} &&
+               !responsive_http_server("http", $verbose, "ipv6", $HTTP6PORT)) {
+                if(stopserver('http-ipv6')) {
+                    return "failed stopping unresponsive HTTP-IPv6 server";
+                }
+            }
+            if(!$run{'http-ipv6'}) {
+                ($pid, $pid2, $HTTP6PORT) =
+                    runhttpserver("http", $verbose, "ipv6");
+                if($pid <= 0) {
+                    return "failed starting HTTP-IPv6 server";
+                }
+                logmsg sprintf("* pid http-ipv6 => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'http-ipv6'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "rtsp") {
+            if($torture && $run{'rtsp'} &&
+               !responsive_rtsp_server($verbose)) {
+                if(stopserver('rtsp')) {
+                    return "failed stopping unresponsive RTSP server";
+                }
+            }
+            if(!$run{'rtsp'}) {
+                ($pid, $pid2, $RTSPPORT) = runrtspserver($verbose);
+                if($pid <= 0) {
+                    return "failed starting RTSP server";
+                }
+                printf ("* pid rtsp => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'rtsp'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "rtsp-ipv6") {
+            if($torture && $run{'rtsp-ipv6'} &&
+               !responsive_rtsp_server($verbose, "ipv6")) {
+                if(stopserver('rtsp-ipv6')) {
+                    return "failed stopping unresponsive RTSP-IPv6 server";
+                }
+            }
+            if(!$run{'rtsp-ipv6'}) {
+                ($pid, $pid2, $RTSP6PORT) = runrtspserver($verbose, "ipv6");
+                if($pid <= 0) {
+                    return "failed starting RTSP-IPv6 server";
+                }
+                logmsg sprintf("* pid rtsp-ipv6 => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'rtsp-ipv6'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "ftps") {
+            if(!$stunnel) {
+                # we can't run ftps tests without stunnel
+                return "no stunnel";
+            }
+            if($runcert{'ftps'} && ($runcert{'ftps'} ne $certfile)) {
+                # stop server when running and using a different cert
+                if(stopserver('ftps')) {
+                    return "failed stopping FTPS server with different cert";
+                }
+            }
+            if($torture && $run{'ftp'} &&
+               !responsive_pingpong_server("ftp", "", $verbose)) {
+                if(stopserver('ftp')) {
+                    return "failed stopping unresponsive FTP server";
+                }
+            }
+            if(!$run{'ftp'}) {
+                ($pid, $pid2) = runpingpongserver("ftp", "", $verbose);
+                if($pid <= 0) {
+                    return "failed starting FTP server";
+                }
+                printf ("* pid ftp => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'ftp'}="$pid $pid2";
+            }
+            if(!$run{'ftps'}) {
+                ($pid, $pid2, $FTPSPORT) =
+                    runftpsserver($verbose, "", $certfile);
+                if($pid <= 0) {
+                    return "failed starting FTPS server (stunnel)";
+                }
+                logmsg sprintf("* pid ftps => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'ftps'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "file") {
+            # we support it but have no server!
+        }
+        elsif($what eq "https") {
+            if(!$stunnel) {
+                # we can't run https tests without stunnel
+                return "no stunnel";
+            }
+            if($runcert{'https'} && ($runcert{'https'} ne $certfile)) {
+                # stop server when running and using a different cert
+                if(stopserver('https')) {
+                    return "failed stopping HTTPS server with different cert";
+                }
+            }
+            if($torture && $run{'http'} &&
+               !responsive_http_server("http", $verbose, 0, $HTTPPORT)) {
+                if(stopserver('http')) {
+                    return "failed stopping unresponsive HTTP server";
+                }
+            }
+            if(!$run{'http'}) {
+                ($pid, $pid2, $HTTPPORT) =
+                    runhttpserver("http", $verbose, 0);
+                if($pid <= 0) {
+                    return "failed starting HTTP server";
+                }
+                printf ("* pid http => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'http'}="$pid $pid2";
+            }
+            if(!$run{'https'}) {
+                ($pid, $pid2, $HTTPSPORT) =
+                    runhttpsserver($verbose, "https", "", $certfile);
+                if($pid <= 0) {
+                    return "failed starting HTTPS server (stunnel)";
+                }
+                logmsg sprintf("* pid https => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'https'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "gophers") {
+            if(!$stunnel) {
+                # we can't run TLS tests without stunnel
+                return "no stunnel";
+            }
+            if($runcert{'gophers'} && ($runcert{'gophers'} ne $certfile)) {
+                # stop server when running and using a different cert
+                if(stopserver('gophers')) {
+                    return "failed stopping GOPHERS server with different crt";
+                }
+            }
+            if($torture && $run{'gopher'} &&
+               !responsive_http_server("gopher", $verbose, 0, $GOPHERPORT)) {
+                if(stopserver('gopher')) {
+                    return "failed stopping unresponsive GOPHER server";
+                }
+            }
+            if(!$run{'gopher'}) {
+                ($pid, $pid2, $GOPHERPORT) =
+                    runhttpserver("gopher", $verbose, 0);
+                if($pid <= 0) {
+                    return "failed starting GOPHER server";
+                }
+                printf ("* pid gopher => %d %d\n", $pid, $pid2) if($verbose);
+                print "GOPHERPORT => $GOPHERPORT\n" if($verbose);
+                $run{'gopher'}="$pid $pid2";
+            }
+            if(!$run{'gophers'}) {
+                ($pid, $pid2, $GOPHERSPORT) =
+                    runhttpsserver($verbose, "gophers", "", $certfile);
+                if($pid <= 0) {
+                    return "failed starting GOPHERS server (stunnel)";
+                }
+                logmsg sprintf("* pid gophers => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                print "GOPHERSPORT => $GOPHERSPORT\n" if($verbose);
+                $run{'gophers'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "https-proxy") {
+            if(!$stunnel) {
+                # we can't run https-proxy tests without stunnel
+                return "no stunnel";
+            }
+            if($runcert{'https-proxy'} &&
+               ($runcert{'https-proxy'} ne $certfile)) {
+                # stop server when running and using a different cert
+                if(stopserver('https-proxy')) {
+                    return "failed stopping HTTPS-proxy with different cert";
+                }
+            }
+
+            # we front the http-proxy with stunnel so we need to make sure the
+            # proxy runs as well
+            my $f = startservers("http-proxy");
+            if($f) {
+                return $f;1
+            }
+
+            if(!$run{'https-proxy'}) {
+                ($pid, $pid2, $HTTPSPROXYPORT) =
+                    runhttpsserver($verbose, "https", "proxy", $certfile);
+                if($pid <= 0) {
+                    return "failed starting HTTPS-proxy (stunnel)";
+                }
+                logmsg sprintf("* pid https-proxy => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'https-proxy'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "httptls") {
+            if(!$httptlssrv) {
+                # for now, we can't run http TLS-EXT tests without gnutls-serv
+                return "no gnutls-serv";
+            }
+            if($torture && $run{'httptls'} &&
+               !responsive_httptls_server($verbose, "IPv4")) {
+                if(stopserver('httptls')) {
+                    return "failed stopping unresponsive HTTPTLS server";
+                }
+            }
+            if(!$run{'httptls'}) {
+                ($pid, $pid2, $HTTPTLSPORT) =
+                    runhttptlsserver($verbose, "IPv4");
+                if($pid <= 0) {
+                    return "failed starting HTTPTLS server (gnutls-serv)";
+                }
+                logmsg sprintf("* pid httptls => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'httptls'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "httptls-ipv6") {
+            if(!$httptlssrv) {
+                # for now, we can't run http TLS-EXT tests without gnutls-serv
+                return "no gnutls-serv";
+            }
+            if($torture && $run{'httptls-ipv6'} &&
+               !responsive_httptls_server($verbose, "ipv6")) {
+                if(stopserver('httptls-ipv6')) {
+                    return "failed stopping unresponsive HTTPTLS-IPv6 server";
+                }
+            }
+            if(!$run{'httptls-ipv6'}) {
+                ($pid, $pid2, $HTTPTLS6PORT) =
+                    runhttptlsserver($verbose, "ipv6");
+                if($pid <= 0) {
+                    return "failed starting HTTPTLS-IPv6 server (gnutls-serv)";
+                }
+                logmsg sprintf("* pid httptls-ipv6 => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'httptls-ipv6'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "tftp") {
+            if($torture && $run{'tftp'} &&
+               !responsive_tftp_server("", $verbose)) {
+                if(stopserver('tftp')) {
+                    return "failed stopping unresponsive TFTP server";
+                }
+            }
+            if(!$run{'tftp'}) {
+                ($pid, $pid2, $TFTPPORT) =
+                    runtftpserver("", $verbose);
+                if($pid <= 0) {
+                    return "failed starting TFTP server";
+                }
+                printf ("* pid tftp => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'tftp'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "tftp-ipv6") {
+            if($torture && $run{'tftp-ipv6'} &&
+               !responsive_tftp_server("", $verbose, "ipv6")) {
+                if(stopserver('tftp-ipv6')) {
+                    return "failed stopping unresponsive TFTP-IPv6 server";
+                }
+            }
+            if(!$run{'tftp-ipv6'}) {
+                ($pid, $pid2, $TFTP6PORT) =
+                    runtftpserver("", $verbose, "ipv6");
+                if($pid <= 0) {
+                    return "failed starting TFTP-IPv6 server";
+                }
+                printf("* pid tftp-ipv6 => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'tftp-ipv6'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "sftp" || $what eq "scp") {
+            if(!$run{'ssh'}) {
+                ($pid, $pid2, $SSHPORT) = runsshserver("", $verbose);
+                if($pid <= 0) {
+                    return "failed starting SSH server";
+                }
+                printf ("* pid ssh => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'ssh'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "socks4" || $what eq "socks5" ) {
+            if(!$run{'socks'}) {
+                ($pid, $pid2, $SOCKSPORT) = runsocksserver("", $verbose);
+                if($pid <= 0) {
+                    return "failed starting socks server";
+                }
+                printf ("* pid socks => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'socks'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "socks5unix") {
+            if(!$run{'socks5unix'}) {
+                ($pid, $pid2) = runsocksserver("2", $verbose, "", "unix");
+                if($pid <= 0) {
+                    return "failed starting socks5unix server";
+                }
+                printf ("* pid socks5unix => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'socks5unix'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "mqtt" ) {
+            if(!$run{'mqtt'}) {
+                ($pid, $pid2) = runmqttserver("", $verbose);
+                if($pid <= 0) {
+                    return "failed starting mqtt server";
+                }
+                printf ("* pid mqtt => %d %d\n", $pid, $pid2) if($verbose);
+                $run{'mqtt'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "http-unix") {
+            if($torture && $run{'http-unix'} &&
+               !responsive_http_server("http", $verbose, "unix", $HTTPUNIXPATH)) {
+                if(stopserver('http-unix')) {
+                    return "failed stopping unresponsive HTTP-unix server";
+                }
+            }
+            if(!$run{'http-unix'}) {
+                my $unused;
+                ($pid, $pid2, $unused) =
+                    runhttpserver("http", $verbose, "unix", $HTTPUNIXPATH);
+                if($pid <= 0) {
+                    return "failed starting HTTP-unix server";
+                }
+                logmsg sprintf("* pid http-unix => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'http-unix'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "dict") {
+            if(!$run{'dict'}) {
+                ($pid, $pid2, $DICTPORT) = rundictserver($verbose, "");
+                if($pid <= 0) {
+                    return "failed starting DICT server";
+                }
+                logmsg sprintf ("* pid DICT => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'dict'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "smb") {
+            if(!$run{'smb'}) {
+                ($pid, $pid2, $SMBPORT) = runsmbserver($verbose, "");
+                if($pid <= 0) {
+                    return "failed starting SMB server";
+                }
+                logmsg sprintf ("* pid SMB => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'smb'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "telnet") {
+            if(!$run{'telnet'}) {
+                ($pid, $pid2, $TELNETPORT) =
+                    runnegtelnetserver($verbose, "");
+                if($pid <= 0) {
+                    return "failed starting neg TELNET server";
+                }
+                logmsg sprintf ("* pid neg TELNET => %d %d\n", $pid, $pid2)
+                    if($verbose);
+                $run{'telnet'}="$pid $pid2";
+            }
+        }
+        elsif($what eq "none") {
+            logmsg "* starts no server\n" if ($verbose);
+        }
+        else {
+            warn "we don't support a server for $what";
+            return "no server for $what";
+        }
+    }
+    return 0;
+}
+
+##############################################################################
+# This function makes sure the right set of server is running for the
+# specified test case. This is a useful design when we run single tests as not
+# all servers need to run then!
+#
+# Returns: a string, blank if everything is fine or a reason why it failed
+#
+sub serverfortest {
+    my ($testnum)=@_;
+
+    my @what = getpart("client", "server");
+
+    if(!$what[0]) {
+        warn "Test case $testnum has no server(s) specified";
+        return "no server specified";
+    }
+
+    for(my $i = scalar(@what) - 1; $i >= 0; $i--) {
+        my $srvrline = $what[$i];
+        chomp $srvrline if($srvrline);
+        if($srvrline =~ /^(\S+)((\s*)(.*))/) {
+            my $server = "${1}";
+            my $lnrest = "${2}";
+            my $tlsext;
+            if($server =~ /^(httptls)(\+)(ext|srp)(\d*)(-ipv6|)$/) {
+                $server = "${1}${4}${5}";
+                $tlsext = uc("TLS-${3}");
+            }
+            if(! grep /^\Q$server\E$/, @protocols) {
+                if(substr($server,0,5) ne "socks") {
+                    if($tlsext) {
+                        return "curl lacks $tlsext support";
+                    }
+                    else {
+                        return "curl lacks $server server support";
+                    }
+                }
+            }
+            $what[$i] = "$server$lnrest" if($tlsext);
+        }
+    }
+
+    return &startservers(@what);
+}
+
+#######################################################################
+# runtimestats displays test-suite run time statistics
+#
+sub runtimestats {
+    my $lasttest = $_[0];
+
+    return if(not $timestats);
+
+    logmsg "\nTest suite total running time breakdown per task...\n\n";
+
+    my @timesrvr;
+    my @timeprep;
+    my @timetool;
+    my @timelock;
+    my @timevrfy;
+    my @timetest;
+    my $timesrvrtot = 0.0;
+    my $timepreptot = 0.0;
+    my $timetooltot = 0.0;
+    my $timelocktot = 0.0;
+    my $timevrfytot = 0.0;
+    my $timetesttot = 0.0;
+    my $counter;
+
+    for my $testnum (1 .. $lasttest) {
+        if($timesrvrini{$testnum}) {
+            $timesrvrtot += $timesrvrend{$testnum} - $timesrvrini{$testnum};
+            $timepreptot +=
+                (($timetoolini{$testnum} - $timeprepini{$testnum}) -
+                 ($timesrvrend{$testnum} - $timesrvrini{$testnum}));
+            $timetooltot += $timetoolend{$testnum} - $timetoolini{$testnum};
+            $timelocktot += $timesrvrlog{$testnum} - $timetoolend{$testnum};
+            $timevrfytot += $timevrfyend{$testnum} - $timesrvrlog{$testnum};
+            $timetesttot += $timevrfyend{$testnum} - $timeprepini{$testnum};
+            push @timesrvr, sprintf("%06.3f  %04d",
+                $timesrvrend{$testnum} - $timesrvrini{$testnum}, $testnum);
+            push @timeprep, sprintf("%06.3f  %04d",
+                ($timetoolini{$testnum} - $timeprepini{$testnum}) -
+                ($timesrvrend{$testnum} - $timesrvrini{$testnum}), $testnum);
+            push @timetool, sprintf("%06.3f  %04d",
+                $timetoolend{$testnum} - $timetoolini{$testnum}, $testnum);
+            push @timelock, sprintf("%06.3f  %04d",
+                $timesrvrlog{$testnum} - $timetoolend{$testnum}, $testnum);
+            push @timevrfy, sprintf("%06.3f  %04d",
+                $timevrfyend{$testnum} - $timesrvrlog{$testnum}, $testnum);
+            push @timetest, sprintf("%06.3f  %04d",
+                $timevrfyend{$testnum} - $timeprepini{$testnum}, $testnum);
+        }
+    }
+
+    {
+        no warnings 'numeric';
+        @timesrvr = sort { $b <=> $a } @timesrvr;
+        @timeprep = sort { $b <=> $a } @timeprep;
+        @timetool = sort { $b <=> $a } @timetool;
+        @timelock = sort { $b <=> $a } @timelock;
+        @timevrfy = sort { $b <=> $a } @timevrfy;
+        @timetest = sort { $b <=> $a } @timetest;
+    }
+
+    logmsg "Spent ". sprintf("%08.3f ", $timesrvrtot) .
+           "seconds starting and verifying test harness servers.\n";
+    logmsg "Spent ". sprintf("%08.3f ", $timepreptot) .
+           "seconds reading definitions and doing test preparations.\n";
+    logmsg "Spent ". sprintf("%08.3f ", $timetooltot) .
+           "seconds actually running test tools.\n";
+    logmsg "Spent ". sprintf("%08.3f ", $timelocktot) .
+           "seconds awaiting server logs lock removal.\n";
+    logmsg "Spent ". sprintf("%08.3f ", $timevrfytot) .
+           "seconds verifying test results.\n";
+    logmsg "Spent ". sprintf("%08.3f ", $timetesttot) .
+           "seconds doing all of the above.\n";
+
+    $counter = 25;
+    logmsg "\nTest server starting and verification time per test ".
+        sprintf("(%s)...\n\n", (not $fullstats)?"top $counter":"full");
+    logmsg "-time-  test\n";
+    logmsg "------  ----\n";
+    foreach my $txt (@timesrvr) {
+        last if((not $fullstats) && (not $counter--));
+        logmsg "$txt\n";
+    }
+
+    $counter = 10;
+    logmsg "\nTest definition reading and preparation time per test ".
+        sprintf("(%s)...\n\n", (not $fullstats)?"top $counter":"full");
+    logmsg "-time-  test\n";
+    logmsg "------  ----\n";
+    foreach my $txt (@timeprep) {
+        last if((not $fullstats) && (not $counter--));
+        logmsg "$txt\n";
+    }
+
+    $counter = 25;
+    logmsg "\nTest tool execution time per test ".
+        sprintf("(%s)...\n\n", (not $fullstats)?"top $counter":"full");
+    logmsg "-time-  test\n";
+    logmsg "------  ----\n";
+    foreach my $txt (@timetool) {
+        last if((not $fullstats) && (not $counter--));
+        logmsg "$txt\n";
+    }
+
+    $counter = 15;
+    logmsg "\nTest server logs lock removal time per test ".
+        sprintf("(%s)...\n\n", (not $fullstats)?"top $counter":"full");
+    logmsg "-time-  test\n";
+    logmsg "------  ----\n";
+    foreach my $txt (@timelock) {
+        last if((not $fullstats) && (not $counter--));
+        logmsg "$txt\n";
+    }
+
+    $counter = 10;
+    logmsg "\nTest results verification time per test ".
+        sprintf("(%s)...\n\n", (not $fullstats)?"top $counter":"full");
+    logmsg "-time-  test\n";
+    logmsg "------  ----\n";
+    foreach my $txt (@timevrfy) {
+        last if((not $fullstats) && (not $counter--));
+        logmsg "$txt\n";
+    }
+
+    $counter = 50;
+    logmsg "\nTotal time per test ".
+        sprintf("(%s)...\n\n", (not $fullstats)?"top $counter":"full");
+    logmsg "-time-  test\n";
+    logmsg "------  ----\n";
+    foreach my $txt (@timetest) {
+        last if((not $fullstats) && (not $counter--));
+        logmsg "$txt\n";
+    }
+
+    logmsg "\n";
+}
+
+#######################################################################
+# Check options to this test program
+#
+
+# Special case for CMake: replace '$TFLAGS' by the contents of the
+# environment variable (if any).
+if(@ARGV && $ARGV[-1] eq '$TFLAGS') {
+    pop @ARGV;
+    push(@ARGV, split(' ', $ENV{'TFLAGS'})) if defined($ENV{'TFLAGS'});
+}
+
+my $number=0;
+my $fromnum=-1;
+my @testthis;
+while(@ARGV) {
+    if ($ARGV[0] eq "-v") {
+        # verbose output
+        $verbose=1;
+    }
+    elsif ($ARGV[0] eq "-c") {
+        # use this path to curl instead of default
+        $DBGCURL=$CURL="\"$ARGV[1]\"";
+        shift @ARGV;
+    }
+    elsif ($ARGV[0] eq "-vc") {
+        # use this path to a curl used to verify servers
+
+        # Particularly useful when you introduce a crashing bug somewhere in
+        # the development version as then it won't be able to run any tests
+        # since it can't verify the servers!
+
+        $VCURL="\"$ARGV[1]\"";
+        shift @ARGV;
+    }
+    elsif ($ARGV[0] eq "-ac") {
+        # use this curl only to talk to APIs (currently only CI test APIs)
+        $ACURL="\"$ARGV[1]\"";
+        shift @ARGV;
+    }
+    elsif ($ARGV[0] eq "-d") {
+        # have the servers display protocol output
+        $debugprotocol=1;
+    }
+    elsif($ARGV[0] eq "-e") {
+        # run the tests cases event based if possible
+        $run_event_based=1;
+    }
+    elsif($ARGV[0] eq "-f") {
+        # force - run the test case even if listed in DISABLED
+        $run_disabeled=1;
+    }
+    elsif($ARGV[0] eq "-E") {
+        # load additional reasons to skip tests
+        shift @ARGV;
+        my $exclude_file = $ARGV[0];
+        open(my $fd, "<", $exclude_file) or die "Couldn't open '$exclude_file': $!";
+        while(my $line = <$fd>) {
+            next if ($line =~ /^#/);
+            chomp $line;
+            my ($type, $patterns, $skip_reason) = split(/\s*:\s*/, $line, 3);
+
+            die "Unsupported type: $type\n" if($type !~ /^keyword|test|tool$/);
+
+            foreach my $pattern (split(/,/, $patterns)) {
+                if($type =~ /^test$/) {
+                    # Strip leading zeros in the test number
+                    $pattern = int($pattern);
+                }
+                $custom_skip_reasons{$type}{$pattern} = $skip_reason;
+            }
+        }
+        close($fd);
+    }
+    elsif ($ARGV[0] eq "-g") {
+        # run this test with gdb
+        $gdbthis=1;
+    }
+    elsif ($ARGV[0] eq "-gw") {
+        # run this test with windowed gdb
+        $gdbthis=1;
+        $gdbxwin=1;
+    }
+    elsif($ARGV[0] eq "-s") {
+        # short output
+        $short=1;
+    }
+    elsif($ARGV[0] eq "-am") {
+        # automake-style output
+        $short=1;
+        $automakestyle=1;
+    }
+    elsif($ARGV[0] eq "-n") {
+        # no valgrind
+        undef $valgrind;
+    }
+    elsif ($ARGV[0] eq "-R") {
+        # execute in scrambled order
+        $scrambleorder=1;
+    }
+    elsif($ARGV[0] =~ /^-t(.*)/) {
+        # torture
+        $torture=1;
+        my $xtra = $1;
+
+        if($xtra =~ s/(\d+)$//) {
+            $tortalloc = $1;
+        }
+    }
+    elsif($ARGV[0] =~ /--shallow=(\d+)/) {
+        # Fail no more than this amount per tests when running
+        # torture.
+        my ($num)=($1);
+        $shallow=$num;
+    }
+    elsif($ARGV[0] =~ /--repeat=(\d+)/) {
+        # Repeat-run the given tests this many times
+        $repeat = $1;
+    }
+    elsif($ARGV[0] =~ /--seed=(\d+)/) {
+        # Set a fixed random seed (used for -R and --shallow)
+        $randseed = $1;
+    }
+    elsif($ARGV[0] eq "-a") {
+        # continue anyway, even if a test fail
+        $anyway=1;
+    }
+    elsif($ARGV[0] eq "-o") {
+        shift @ARGV;
+        if ($ARGV[0] =~ /^(\w+)=([\w.:\/\[\]-]+)$/) {
+            my ($variable, $value) = ($1, $2);
+            eval "\$$variable='$value'" or die "Failed to set \$$variable to $value: $@";
+        } else {
+            die "Failed to parse '-o $ARGV[0]'. May contain unexpected characters.\n";
+        }
+    }
+    elsif($ARGV[0] eq "-p") {
+        $postmortem=1;
+    }
+    elsif($ARGV[0] eq "-P") {
+        shift @ARGV;
+        $use_external_proxy=1;
+        $proxy_address=$ARGV[0];
+    }
+    elsif($ARGV[0] eq "-L") {
+        # require additional library file
+        shift @ARGV;
+        require $ARGV[0];
+    }
+    elsif($ARGV[0] eq "-l") {
+        # lists the test case names only
+        $listonly=1;
+    }
+    elsif($ARGV[0] eq "-k") {
+        # keep stdout and stderr files after tests
+        $keepoutfiles=1;
+    }
+    elsif($ARGV[0] eq "-r") {
+        # run time statistics needs Time::HiRes
+        if($Time::HiRes::VERSION) {
+            keys(%timeprepini) = 1000;
+            keys(%timesrvrini) = 1000;
+            keys(%timesrvrend) = 1000;
+            keys(%timetoolini) = 1000;
+            keys(%timetoolend) = 1000;
+            keys(%timesrvrlog) = 1000;
+            keys(%timevrfyend) = 1000;
+            $timestats=1;
+            $fullstats=0;
+        }
+    }
+    elsif($ARGV[0] eq "-rf") {
+        # run time statistics needs Time::HiRes
+        if($Time::HiRes::VERSION) {
+            keys(%timeprepini) = 1000;
+            keys(%timesrvrini) = 1000;
+            keys(%timesrvrend) = 1000;
+            keys(%timetoolini) = 1000;
+            keys(%timetoolend) = 1000;
+            keys(%timesrvrlog) = 1000;
+            keys(%timevrfyend) = 1000;
+            $timestats=1;
+            $fullstats=1;
+        }
+    }
+    elsif($ARGV[0] eq "-rm") {
+        # force removal of files by killing locking processes
+        $clearlocks=1;
+    }
+    elsif($ARGV[0] eq "-u") {
+        # error instead of warning on server unexpectedly alive
+        $err_unexpected=1;
+    }
+    elsif(($ARGV[0] eq "-h") || ($ARGV[0] eq "--help")) {
+        # show help text
+        print <<EOHELP
+Usage: runtests.pl [options] [test selection(s)]
+  -a       continue even if a test fails
+  -ac path use this curl only to talk to APIs (currently only CI test APIs)
+  -am      automake style output PASS/FAIL: [number] [name]
+  -c path  use this curl executable
+  -d       display server debug info
+  -e       event-based execution
+  -E file  load the specified file to exclude certain tests
+  -f       forcibly run even if disabled
+  -g       run the test case with gdb
+  -gw      run the test case with gdb as a windowed application
+  -h       this help text
+  -k       keep stdout and stderr files present after tests
+  -L path  require an additional perl library file to replace certain functions
+  -l       list all test case names/descriptions
+  -n       no valgrind
+  -o variable=value set internal variable to the specified value
+  -P proxy use the specified proxy
+  -p       print log file contents when a test fails
+  -R       scrambled order (uses the random seed, see --seed)
+  -r       run time statistics
+  -rf      full run time statistics
+  -rm      force removal of files by killing locking processes (Windows only)
+  --repeat=[num] run the given tests this many times
+  -s       short output
+  --seed=[num] set the random seed to a fixed number
+  --shallow=[num] randomly makes the torture tests "thinner"
+  -t[N]    torture (simulate function failures); N means fail Nth function
+  -u       error instead of warning on server unexpectedly alive
+  -v       verbose output
+  -vc path use this curl only to verify the existing servers
+  [num]    like "5 6 9" or " 5 to 22 " to run those tests only
+  [!num]   like "!5 !6 !9" to disable those tests
+  [~num]   like "~5 ~6 ~9" to ignore the result of those tests
+  [keyword] like "IPv6" to select only tests containing the key word
+  [!keyword] like "!cookies" to disable any tests containing the key word
+  [~keyword] like "~cookies" to ignore results of tests containing key word
+EOHELP
+    ;
+        exit;
+    }
+    elsif($ARGV[0] =~ /^(\d+)/) {
+        $number = $1;
+        if($fromnum >= 0) {
+            for my $n ($fromnum .. $number) {
+                push @testthis, $n;
+            }
+            $fromnum = -1;
+        }
+        else {
+            push @testthis, $1;
+        }
+    }
+    elsif($ARGV[0] =~ /^to$/i) {
+        $fromnum = $number+1;
+    }
+    elsif($ARGV[0] =~ /^!(\d+)/) {
+        $fromnum = -1;
+        $disabled{$1}=$1;
+    }
+    elsif($ARGV[0] =~ /^~(\d+)/) {
+        $fromnum = -1;
+        $ignored{$1}=$1;
+    }
+    elsif($ARGV[0] =~ /^!(.+)/) {
+        $disabled_keywords{lc($1)}=$1;
+    }
+    elsif($ARGV[0] =~ /^~(.+)/) {
+        $ignored_keywords{lc($1)}=$1;
+    }
+    elsif($ARGV[0] =~ /^([-[{a-zA-Z].*)/) {
+        $enabled_keywords{lc($1)}=$1;
+    }
+    else {
+        print "Unknown option: $ARGV[0]\n";
+        exit;
+    }
+    shift @ARGV;
+}
+
+if(!$randseed) {
+    my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
+        localtime(time);
+    # seed of the month. December 2019 becomes 201912
+    $randseed = ($year+1900)*100 + $mon+1;
+    open(C, "$CURL --version 2>/dev/null|");
+    my @c = <C>;
+    close(C);
+    # use the first line of output and get the md5 out of it
+    my $str = md5($c[0]);
+    $randseed += unpack('S', $str);  # unsigned 16 bit value
+}
+srand $randseed;
+
+if(@testthis && ($testthis[0] ne "")) {
+    $TESTCASES=join(" ", @testthis);
+}
+
+if($valgrind) {
+    # we have found valgrind on the host, use it
+
+    # verify that we can invoke it fine
+    my $code = runclient("valgrind >/dev/null 2>&1");
+
+    if(($code>>8) != 1) {
+        #logmsg "Valgrind failure, disable it\n";
+        undef $valgrind;
+    } else {
+
+        # since valgrind 2.1.x, '--tool' option is mandatory
+        # use it, if it is supported by the version installed on the system
+        runclient("valgrind --help 2>&1 | grep -- --tool > /dev/null 2>&1");
+        if (($? >> 8)==0) {
+            $valgrind_tool="--tool=memcheck";
+        }
+        open(C, "<$CURL");
+        my $l = <C>;
+        if($l =~ /^\#\!/) {
+            # A shell script. This is typically when built with libtool,
+            $valgrind="../libtool --mode=execute $valgrind";
+        }
+        close(C);
+
+        # valgrind 3 renamed the --logfile option to --log-file!!!
+        my $ver=join(' ', runclientoutput("valgrind --version"));
+        # cut off all but digits and dots
+        $ver =~ s/[^0-9.]//g;
+
+        if($ver =~ /^(\d+)/) {
+            $ver = $1;
+            if($ver >= 3) {
+                $valgrind_logfile="--log-file";
+            }
+        }
+    }
+}
+
+if ($gdbthis) {
+    # open the executable curl and read the first 4 bytes of it
+    open(CHECK, "<$CURL");
+    my $c;
+    sysread CHECK, $c, 4;
+    close(CHECK);
+    if($c eq "#! /") {
+        # A shell script. This is typically when built with libtool,
+        $libtool = 1;
+        $gdb = "../libtool --mode=execute gdb";
+    }
+}
+
+$HTTPUNIXPATH    = "http$$.sock"; # HTTP server Unix domain socket path
+$SOCKSUNIXPATH    = $pwd."/socks$$.sock"; # HTTP server Unix domain socket path, absolute path
+
+#######################################################################
+# clear and create logging directory:
+#
+
+cleardir($LOGDIR);
+mkdir($LOGDIR, 0777);
+
+#######################################################################
+# initialize some variables
+#
+
+get_disttests();
+init_serverpidfile_hash();
+
+#######################################################################
+# Output curl version and host info being tested
+#
+
+if(!$listonly) {
+    checksystem();
+}
+
+# globally disabled tests
+disabledtests("$TESTDIR/DISABLED");
+
+#######################################################################
+# Fetch all disabled tests, if there are any
+#
+
+sub disabledtests {
+    my ($file) = @_;
+    my @input;
+
+    if(open(D, "<$file")) {
+        while(<D>) {
+            if(/^ *\#/) {
+                # allow comments
+                next;
+            }
+            push @input, $_;
+        }
+        close(D);
+
+        # preprocess the input to make conditionally disabled tests depending
+        # on variables
+        my @pp = prepro(0, @input);
+        for my $t (@pp) {
+            if($t =~ /(\d+)/) {
+                my ($n) = $1;
+                $disabled{$n}=$n; # disable this test number
+                if(! -f "$srcdir/data/test$n") {
+                    print STDERR "WARNING! Non-existing test $n in $file!\n";
+                    # fail hard to make user notice
+                    exit 1;
+                }
+                logmsg "DISABLED: test $n\n" if ($verbose);
+            }
+            else {
+                print STDERR "$file: rubbish content: $t\n";
+                exit 2;
+            }
+        }
+    }
+}
+
+#######################################################################
+# If 'all' tests are requested, find out all test numbers
+#
+
+if ( $TESTCASES eq "all") {
+    # Get all commands and find out their test numbers
+    opendir(DIR, $TESTDIR) || die "can't opendir $TESTDIR: $!";
+    my @cmds = grep { /^test([0-9]+)$/ && -f "$TESTDIR/$_" } readdir(DIR);
+    closedir(DIR);
+
+    $TESTCASES=""; # start with no test cases
+
+    # cut off everything but the digits
+    for(@cmds) {
+        $_ =~ s/[a-z\/\.]*//g;
+    }
+    # sort the numbers from low to high
+    foreach my $n (sort { $a <=> $b } @cmds) {
+        if($disabled{$n}) {
+            # skip disabled test cases
+            my $why = "configured as DISABLED";
+            $skipped++;
+            $skipped{$why}++;
+            $teststat[$n]=$why; # store reason for this test case
+            next;
+        }
+        $TESTCASES .= " $n";
+    }
+}
+else {
+    my $verified="";
+    map {
+        if (-e "$TESTDIR/test$_") {
+            $verified.="$_ ";
+        }
+    } split(" ", $TESTCASES);
+    if($verified eq "") {
+        print "No existing test cases were specified\n";
+        exit;
+    }
+    $TESTCASES = $verified;
+}
+if($repeat) {
+    my $s;
+    for(1 .. $repeat) {
+        $s .= $TESTCASES;
+    }
+    $TESTCASES = $s;
+}
+
+if($scrambleorder) {
+    # scramble the order of the test cases
+    my @rand;
+    while($TESTCASES) {
+        my @all = split(/ +/, $TESTCASES);
+        if(!$all[0]) {
+            # if the first is blank, shift away it
+            shift @all;
+        }
+        my $r = rand @all;
+        push @rand, $all[$r];
+        $all[$r]="";
+        $TESTCASES = join(" ", @all);
+    }
+    $TESTCASES = join(" ", @rand);
+}
+
+# Display the contents of the given file.  Line endings are canonicalized
+# and excessively long files are elided
+sub displaylogcontent {
+    my ($file)=@_;
+    if(open(SINGLE, "<$file")) {
+        my $linecount = 0;
+        my $truncate;
+        my @tail;
+        while(my $string = <SINGLE>) {
+            $string =~ s/\r\n/\n/g;
+            $string =~ s/[\r\f\032]/\n/g;
+            $string .= "\n" unless ($string =~ /\n$/);
+            $string =~ tr/\n//;
+            for my $line (split("\n", $string)) {
+                $line =~ s/\s*\!$//;
+                if ($truncate) {
+                    push @tail, " $line\n";
+                } else {
+                    logmsg " $line\n";
+                }
+                $linecount++;
+                $truncate = $linecount > 1000;
+            }
+        }
+        if(@tail) {
+            my $tailshow = 200;
+            my $tailskip = 0;
+            my $tailtotal = scalar @tail;
+            if($tailtotal > $tailshow) {
+                $tailskip = $tailtotal - $tailshow;
+                logmsg "=== File too long: $tailskip lines omitted here\n";
+            }
+            for($tailskip .. $tailtotal-1) {
+                logmsg "$tail[$_]";
+            }
+        }
+        close(SINGLE);
+    }
+}
+
+sub displaylogs {
+    my ($testnum)=@_;
+    opendir(DIR, "$LOGDIR") ||
+        die "can't open dir: $!";
+    my @logs = readdir(DIR);
+    closedir(DIR);
+
+    logmsg "== Contents of files in the $LOGDIR/ dir after test $testnum\n";
+    foreach my $log (sort @logs) {
+        if($log =~ /\.(\.|)$/) {
+            next; # skip "." and ".."
+        }
+        if($log =~ /^\.nfs/) {
+            next; # skip ".nfs"
+        }
+        if(($log eq "memdump") || ($log eq "core")) {
+            next; # skip "memdump" and  "core"
+        }
+        if((-d "$LOGDIR/$log") || (! -s "$LOGDIR/$log")) {
+            next; # skip directory and empty files
+        }
+        if(($log =~ /^stdout\d+/) && ($log !~ /^stdout$testnum/)) {
+            next; # skip stdoutNnn of other tests
+        }
+        if(($log =~ /^stderr\d+/) && ($log !~ /^stderr$testnum/)) {
+            next; # skip stderrNnn of other tests
+        }
+        if(($log =~ /^upload\d+/) && ($log !~ /^upload$testnum/)) {
+            next; # skip uploadNnn of other tests
+        }
+        if(($log =~ /^curl\d+\.out/) && ($log !~ /^curl$testnum\.out/)) {
+            next; # skip curlNnn.out of other tests
+        }
+        if(($log =~ /^test\d+\.txt/) && ($log !~ /^test$testnum\.txt/)) {
+            next; # skip testNnn.txt of other tests
+        }
+        if(($log =~ /^file\d+\.txt/) && ($log !~ /^file$testnum\.txt/)) {
+            next; # skip fileNnn.txt of other tests
+        }
+        if(($log =~ /^netrc\d+/) && ($log !~ /^netrc$testnum/)) {
+            next; # skip netrcNnn of other tests
+        }
+        if(($log =~ /^trace\d+/) && ($log !~ /^trace$testnum/)) {
+            next; # skip traceNnn of other tests
+        }
+        if(($log =~ /^valgrind\d+/) && ($log !~ /^valgrind$testnum(\..*|)$/)) {
+            next; # skip valgrindNnn of other tests
+        }
+        if(($log =~ /^test$testnum$/)) {
+            next; # skip test$testnum since it can be very big
+        }
+        logmsg "=== Start of file $log\n";
+        displaylogcontent("$LOGDIR/$log");
+        logmsg "=== End of file $log\n";
+    }
+}
+
+#######################################################################
+# Setup Azure Pipelines Test Run (if running in Azure DevOps)
+#
+
+if(azure_check_environment()) {
+    $AZURE_RUN_ID = azure_create_test_run($ACURL);
+    logmsg "Azure Run ID: $AZURE_RUN_ID\n" if ($verbose);
+}
+
+#######################################################################
+# The main test-loop
+#
+
+my $failed;
+my $failedign;
+my $testnum;
+my $ok=0;
+my $ign=0;
+my $total=0;
+my $lasttest=0;
+my @at = split(" ", $TESTCASES);
+my $count=0;
+
+$start = time();
+
+foreach $testnum (@at) {
+
+    $lasttest = $testnum if($testnum > $lasttest);
+    $count++;
+
+    my $error = singletest($run_event_based, $testnum, $count, scalar(@at));
+
+    # update test result in CI services
+    if(azure_check_environment() && $AZURE_RUN_ID && $AZURE_RESULT_ID) {
+        $AZURE_RESULT_ID = azure_update_test_result($ACURL, $AZURE_RUN_ID, $AZURE_RESULT_ID, $testnum, $error,
+                                                    $timeprepini{$testnum}, $timevrfyend{$testnum});
+    }
+    elsif(appveyor_check_environment()) {
+        appveyor_update_test_result($ACURL, $testnum, $error, $timeprepini{$testnum}, $timevrfyend{$testnum});
+    }
+
+    if($error < 0) {
+        # not a test we can run
+        next;
+    }
+
+    $total++; # number of tests we've run
+
+    if($error>0) {
+        if($error==2) {
+            # ignored test failures
+            $failedign .= "$testnum ";
+        }
+        else {
+            $failed.= "$testnum ";
+        }
+        if($postmortem) {
+            # display all files in log/ in a nice way
+            displaylogs($testnum);
+        }
+        if($error==2) {
+            $ign++; # ignored test result counter
+        }
+        elsif(!$anyway) {
+            # a test failed, abort
+            logmsg "\n - abort tests\n";
+            last;
+        }
+    }
+    elsif(!$error) {
+        $ok++; # successful test counter
+    }
+
+    # loop for next test
+}
+
+my $sofar = time() - $start;
+
+#######################################################################
+# Finish Azure Pipelines Test Run (if running in Azure DevOps)
+#
+
+if(azure_check_environment() && $AZURE_RUN_ID) {
+    $AZURE_RUN_ID = azure_update_test_run($ACURL, $AZURE_RUN_ID);
+}
+
+# Tests done, stop the servers
+my $unexpected = stopservers($verbose);
+
+my $all = $total + $skipped;
+
+runtimestats($lasttest);
+
+if($all) {
+    logmsg "TESTDONE: $all tests were considered during ".
+        sprintf("%.0f", $sofar) ." seconds.\n";
+}
+
+if($skipped && !$short) {
+    my $s=0;
+    # Temporary hash to print the restraints sorted by the number
+    # of their occurrences
+    my %restraints;
+    logmsg "TESTINFO: $skipped tests were skipped due to these restraints:\n";
+
+    for(keys %skipped) {
+        my $r = $_;
+        my $skip_count = $skipped{$r};
+        my $log_line = sprintf("TESTINFO: \"%s\" %d time%s (", $r, $skip_count,
+                           ($skip_count == 1) ? "" : "s");
+
+        # now gather all test case numbers that had this reason for being
+        # skipped
+        my $c=0;
+        my $max = 9;
+        for(0 .. scalar @teststat) {
+            my $t = $_;
+            if($teststat[$t] && ($teststat[$t] eq $r)) {
+                if($c < $max) {
+                    $log_line .= ", " if($c);
+                    $log_line .= $t;
+                }
+                $c++;
+            }
+        }
+        if($c > $max) {
+            $log_line .= " and ".($c-$max)." more";
+        }
+        $log_line .= ")\n";
+        $restraints{$log_line} = $skip_count;
+    }
+    foreach my $log_line (sort {$restraints{$b} <=> $restraints{$a}} keys %restraints) {
+        logmsg $log_line;
+    }
+}
+
+if($total) {
+    if($failedign) {
+        logmsg "IGNORED: failed tests: $failedign\n";
+    }
+    logmsg sprintf("TESTDONE: $ok tests out of $total reported OK: %d%%\n",
+                   $ok/$total*100);
+
+    if($failed && ($ok != $total)) {
+        logmsg "\nTESTFAIL: These test cases failed: $failed\n\n";
+    }
+}
+else {
+    logmsg "\nTESTFAIL: No tests were performed\n\n";
+    if(scalar(keys %enabled_keywords)) {
+        logmsg "TESTFAIL: Nothing matched these keywords: ";
+        for(keys %enabled_keywords) {
+            logmsg "$_ ";
+        }
+        logmsg "\n";
+    }
+}
+
+if(($total && (($ok+$ign) != $total)) || !$total || $unexpected) {
+    exit 1;
+}