[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/scripts/mk-ca-bundle.pl b/ap/lib/libcurl/curl-7.86.0/scripts/mk-ca-bundle.pl
new file mode 100755
index 0000000..926478f
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/scripts/mk-ca-bundle.pl
@@ -0,0 +1,713 @@
+#!/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
+# *
+# ***************************************************************************
+# This Perl script creates a fresh ca-bundle.crt file for use with libcurl.
+# It downloads certdata.txt from Mozilla's source tree (see URL below),
+# then parses certdata.txt and extracts CA Root Certificates into PEM format.
+# These are then processed with the OpenSSL commandline tool to produce the
+# final ca-bundle.crt file.
+# The script is based on the parse-certs script written by Roland Krikava.
+# This Perl script works on almost any platform since its only external
+# dependency is the OpenSSL commandline tool for optional text listing.
+# Hacked by Guenter Knauf.
+#
+use Encode;
+use Getopt::Std;
+use MIME::Base64;
+use strict;
+use warnings;
+use vars qw($opt_b $opt_d $opt_f $opt_h $opt_i $opt_k $opt_l $opt_m $opt_n $opt_p $opt_q $opt_s $opt_t $opt_u $opt_v $opt_w);
+use List::Util;
+use Text::Wrap;
+use Time::Local;
+my $MOD_SHA = "Digest::SHA";
+eval "require $MOD_SHA";
+if ($@) {
+  $MOD_SHA = "Digest::SHA::PurePerl";
+  eval "require $MOD_SHA";
+}
+eval "require LWP::UserAgent";
+
+my %urls = (
+  'nss' =>
+    'https://hg.mozilla.org/projects/nss/raw-file/default/lib/ckfw/builtins/certdata.txt',
+  'central' =>
+    'https://hg.mozilla.org/mozilla-central/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+  'beta' =>
+    'https://hg.mozilla.org/releases/mozilla-beta/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+  'release' =>
+    'https://hg.mozilla.org/releases/mozilla-release/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+);
+
+$opt_d = 'release';
+
+# If the OpenSSL commandline is not in search path you can configure it here!
+my $openssl = 'openssl';
+
+my $version = '1.29';
+
+$opt_w = 76; # default base64 encoded lines length
+
+# default cert types to include in the output (default is to include CAs which
+# may issue SSL server certs)
+my $default_mozilla_trust_purposes = "SERVER_AUTH";
+my $default_mozilla_trust_levels = "TRUSTED_DELEGATOR";
+$opt_p = $default_mozilla_trust_purposes . ":" . $default_mozilla_trust_levels;
+
+my @valid_mozilla_trust_purposes = (
+  "DIGITAL_SIGNATURE",
+  "NON_REPUDIATION",
+  "KEY_ENCIPHERMENT",
+  "DATA_ENCIPHERMENT",
+  "KEY_AGREEMENT",
+  "KEY_CERT_SIGN",
+  "CRL_SIGN",
+  "SERVER_AUTH",
+  "CLIENT_AUTH",
+  "CODE_SIGNING",
+  "EMAIL_PROTECTION",
+  "IPSEC_END_SYSTEM",
+  "IPSEC_TUNNEL",
+  "IPSEC_USER",
+  "TIME_STAMPING",
+  "STEP_UP_APPROVED"
+);
+
+my @valid_mozilla_trust_levels = (
+  "TRUSTED_DELEGATOR",    # CAs
+  "NOT_TRUSTED",          # Don't trust these certs.
+  "MUST_VERIFY_TRUST",    # This explicitly tells us that it ISN'T a CA but is
+                          # otherwise ok. In other words, this should tell the
+                          # app to ignore any other sources that claim this is
+                          # a CA.
+  "TRUSTED"               # This cert is trusted, but only for itself and not
+                          # for delegates (i.e. it is not a CA).
+);
+
+my $default_signature_algorithms = $opt_s = "MD5";
+
+my @valid_signature_algorithms = (
+  "MD5",
+  "SHA1",
+  "SHA256",
+  "SHA384",
+  "SHA512"
+);
+
+$0 =~ s@.*(/|\\)@@;
+$Getopt::Std::STANDARD_HELP_VERSION = 1;
+getopts('bd:fhiklmnp:qs:tuvw:');
+
+if(!defined($opt_d)) {
+    # to make plain "-d" use not cause warnings, and actually still work
+    $opt_d = 'release';
+}
+
+# Use predefined URL or else custom URL specified on command line.
+my $url;
+if(defined($urls{$opt_d})) {
+  $url = $urls{$opt_d};
+  if(!$opt_k && $url !~ /^https:\/\//i) {
+    die "The URL for '$opt_d' is not HTTPS. Use -k to override (insecure).\n";
+  }
+}
+else {
+  $url = $opt_d;
+}
+
+my $curl = `curl -V`;
+
+if ($opt_i) {
+  print ("=" x 78 . "\n");
+  print "Script Version                   : $version\n";
+  print "Perl Version                     : $]\n";
+  print "Operating System Name            : $^O\n";
+  print "Getopt::Std.pm Version           : ${Getopt::Std::VERSION}\n";
+  print "Encode::Encoding.pm Version      : ${Encode::Encoding::VERSION}\n";
+  print "MIME::Base64.pm Version          : ${MIME::Base64::VERSION}\n";
+  print "LWP::UserAgent.pm Version        : ${LWP::UserAgent::VERSION}\n" if($LWP::UserAgent::VERSION);
+  print "LWP.pm Version                   : ${LWP::VERSION}\n" if($LWP::VERSION);
+  print "Digest::SHA.pm Version           : ${Digest::SHA::VERSION}\n" if ($Digest::SHA::VERSION);
+  print "Digest::SHA::PurePerl.pm Version : ${Digest::SHA::PurePerl::VERSION}\n" if ($Digest::SHA::PurePerl::VERSION);
+  print ("=" x 78 . "\n");
+}
+
+sub warning_message() {
+  if ( $opt_d =~ m/^risk$/i ) { # Long Form Warning and Exit
+    print "Warning: Use of this script may pose some risk:\n";
+    print "\n";
+    print "  1) If you use HTTP URLs they are subject to a man in the middle attack\n";
+    print "  2) Default to 'release', but more recent updates may be found in other trees\n";
+    print "  3) certdata.txt file format may change, lag time to update this script\n";
+    print "  4) Generally unwise to blindly trust CAs without manual review & verification\n";
+    print "  5) Mozilla apps use additional security checks aren't represented in certdata\n";
+    print "  6) Use of this script will make a security engineer grind his teeth and\n";
+    print "     swear at you.  ;)\n";
+    exit;
+  } else { # Short Form Warning
+    print "Warning: Use of this script may pose some risk, -d risk for more details.\n";
+  }
+}
+
+sub HELP_MESSAGE() {
+  print "Usage:\t${0} [-b] [-d<certdata>] [-f] [-i] [-k] [-l] [-n] [-p<purposes:levels>] [-q] [-s<algorithms>] [-t] [-u] [-v] [-w<l>] [<outputfile>]\n";
+  print "\t-b\tbackup an existing version of ca-bundle.crt\n";
+  print "\t-d\tspecify Mozilla tree to pull certdata.txt or custom URL\n";
+  print "\t\t  Valid names are:\n";
+  print "\t\t    ", join( ", ", map { ( $_ =~ m/$opt_d/ ) ? "$_ (default)" : "$_" } sort keys %urls ), "\n";
+  print "\t-f\tforce rebuild even if certdata.txt is current\n";
+  print "\t-i\tprint version info about used modules\n";
+  print "\t-k\tallow URLs other than HTTPS, enable HTTP fallback (insecure)\n";
+  print "\t-l\tprint license info about certdata.txt\n";
+  print "\t-m\tinclude meta data in output\n";
+  print "\t-n\tno download of certdata.txt (to use existing)\n";
+  print wrap("\t","\t\t", "-p\tlist of Mozilla trust purposes and levels for certificates to include in output. Takes the form of a comma separated list of purposes, a colon, and a comma separated list of levels. (default: $default_mozilla_trust_purposes:$default_mozilla_trust_levels)"), "\n";
+  print "\t\t  Valid purposes are:\n";
+  print wrap("\t\t    ","\t\t    ", join( ", ", "ALL", @valid_mozilla_trust_purposes ) ), "\n";
+  print "\t\t  Valid levels are:\n";
+  print wrap("\t\t    ","\t\t    ", join( ", ", "ALL", @valid_mozilla_trust_levels ) ), "\n";
+  print "\t-q\tbe really quiet (no progress output at all)\n";
+  print wrap("\t","\t\t", "-s\tcomma separated list of certificate signatures/hashes to output in plain text mode. (default: $default_signature_algorithms)\n");
+  print "\t\t  Valid signature algorithms are:\n";
+  print wrap("\t\t    ","\t\t    ", join( ", ", "ALL", @valid_signature_algorithms ) ), "\n";
+  print "\t-t\tinclude plain text listing of certificates\n";
+  print "\t-u\tunlink (remove) certdata.txt after processing\n";
+  print "\t-v\tbe verbose and print out processed CAs\n";
+  print "\t-w <l>\twrap base64 output lines after <l> chars (default: ${opt_w})\n";
+  exit;
+}
+
+sub VERSION_MESSAGE() {
+  print "${0} version ${version} running Perl ${]} on ${^O}\n";
+}
+
+warning_message() unless ($opt_q || $url =~ m/^(ht|f)tps:/i );
+HELP_MESSAGE() if ($opt_h);
+
+sub report($@) {
+  my $output = shift;
+
+  print STDERR $output . "\n" unless $opt_q;
+}
+
+sub is_in_list($@) {
+  my $target = shift;
+
+  return defined(List::Util::first { $target eq $_ } @_);
+}
+
+# Parses $param_string as a case insensitive comma separated list with optional
+# whitespace validates that only allowed parameters are supplied
+sub parse_csv_param($$@) {
+  my $description = shift;
+  my $param_string = shift;
+  my @valid_values = @_;
+
+  my @values = map {
+    s/^\s+//;  # strip leading spaces
+    s/\s+$//;  # strip trailing spaces
+    uc $_      # return the modified string as upper case
+  } split( ',', $param_string );
+
+  # Find all values which are not in the list of valid values or "ALL"
+  my @invalid = grep { !is_in_list($_,"ALL",@valid_values) } @values;
+
+  if ( scalar(@invalid) > 0 ) {
+    # Tell the user which parameters were invalid and print the standard help
+    # message which will exit
+    print "Error: Invalid ", $description, scalar(@invalid) == 1 ? ": " : "s: ", join( ", ", map { "\"$_\"" } @invalid ), "\n";
+    HELP_MESSAGE();
+  }
+
+  @values = @valid_values if ( is_in_list("ALL",@values) );
+
+  return @values;
+}
+
+sub sha256 {
+  my $result;
+  if ($Digest::SHA::VERSION || $Digest::SHA::PurePerl::VERSION) {
+    open(FILE, $_[0]) or die "Can't open '$_[0]': $!";
+    binmode(FILE);
+    $result = $MOD_SHA->new(256)->addfile(*FILE)->hexdigest;
+    close(FILE);
+  } else {
+    # Use OpenSSL command if Perl Digest::SHA modules not available
+    $result = `"$openssl" dgst -r -sha256 "$_[0]"`;
+    $result =~ s/^([0-9a-f]{64}) .+/$1/is;
+  }
+  return $result;
+}
+
+
+sub oldhash {
+  my $hash = "";
+  open(C, "<$_[0]") || return 0;
+  while(<C>) {
+    chomp;
+    if($_ =~ /^\#\# SHA256: (.*)/) {
+      $hash = $1;
+      last;
+    }
+  }
+  close(C);
+  return $hash;
+}
+
+if ( $opt_p !~ m/:/ ) {
+  print "Error: Mozilla trust identifier list must include both purposes and levels\n";
+  HELP_MESSAGE();
+}
+
+(my $included_mozilla_trust_purposes_string, my $included_mozilla_trust_levels_string) = split( ':', $opt_p );
+my @included_mozilla_trust_purposes = parse_csv_param( "trust purpose", $included_mozilla_trust_purposes_string, @valid_mozilla_trust_purposes );
+my @included_mozilla_trust_levels = parse_csv_param( "trust level", $included_mozilla_trust_levels_string, @valid_mozilla_trust_levels );
+
+my @included_signature_algorithms = parse_csv_param( "signature algorithm", $opt_s, @valid_signature_algorithms );
+
+sub should_output_cert(%) {
+  my %trust_purposes_by_level = @_;
+
+  foreach my $level (@included_mozilla_trust_levels) {
+    # for each level we want to output, see if any of our desired purposes are
+    # included
+    return 1 if ( defined( List::Util::first { is_in_list( $_, @included_mozilla_trust_purposes ) } @{$trust_purposes_by_level{$level}} ) );
+  }
+
+  return 0;
+}
+
+my $crt = $ARGV[0] || 'ca-bundle.crt';
+(my $txt = $url) =~ s@(.*/|\?.*)@@g;
+
+my $stdout = $crt eq '-';
+my $resp;
+my $fetched;
+
+my $oldhash = oldhash($crt);
+
+report "SHA256 of old file: $oldhash";
+
+if(!$opt_n) {
+  report "Downloading $txt ...";
+
+  # If we have an HTTPS URL then use curl
+  if($url =~ /^https:\/\//i) {
+    if($curl) {
+      if($curl =~ /^Protocols:.* https( |$)/m) {
+        report "Get certdata with curl!";
+        my $proto = !$opt_k ? "--proto =https" : "";
+        my $quiet = $opt_q ? "-s" : "";
+        my @out = `curl -w %{response_code} $proto $quiet -o "$txt" "$url"`;
+        if(!$? && @out && $out[0] == 200) {
+          $fetched = 1;
+          report "Downloaded $txt";
+        }
+        else {
+          report "Failed downloading via HTTPS with curl";
+          if(-e $txt && !unlink($txt)) {
+            report "Failed to remove '$txt': $!";
+          }
+        }
+      }
+      else {
+        report "curl lacks https support";
+      }
+    }
+    else {
+      report "curl not found";
+    }
+  }
+
+  # If nothing was fetched then use LWP
+  if(!$fetched) {
+    if($url =~ /^https:\/\//i) {
+      report "Falling back to HTTP";
+      $url =~ s/^https:\/\//http:\/\//i;
+    }
+    if(!$opt_k) {
+      report "URLs other than HTTPS are disabled by default, to enable use -k";
+      exit 1;
+    }
+    report "Get certdata with LWP!";
+    if(!defined(${LWP::UserAgent::VERSION})) {
+      report "LWP is not available (LWP::UserAgent not found)";
+      exit 1;
+    }
+    my $ua  = new LWP::UserAgent(agent => "$0/$version");
+    $ua->env_proxy();
+    $resp = $ua->mirror($url, $txt);
+    if($resp && $resp->code eq '304') {
+      report "Not modified";
+      exit 0 if -e $crt && !$opt_f;
+    }
+    else {
+      $fetched = 1;
+      report "Downloaded $txt";
+    }
+    if(!$resp || $resp->code !~ /^(?:200|304)$/) {
+      report "Unable to download latest data: "
+        . ($resp? $resp->code . ' - ' . $resp->message : "LWP failed");
+      exit 1 if -e $crt || ! -r $txt;
+    }
+  }
+}
+
+my $filedate = $resp ? $resp->last_modified : (stat($txt))[9];
+my $datesrc = "as of";
+if(!$filedate) {
+    # mxr.mozilla.org gave us a time, hg.mozilla.org does not!
+    $filedate = time();
+    $datesrc="downloaded on";
+}
+
+# get the hash from the download file
+my $newhash= sha256($txt);
+
+if(!$opt_f && $oldhash eq $newhash) {
+    report "Downloaded file identical to previous run\'s source file. Exiting";
+    if($opt_u && -e $txt && !unlink($txt)) {
+        report "Failed to remove $txt: $!\n";
+    }
+    exit;
+}
+
+report "SHA256 of new file: $newhash";
+
+my $currentdate = scalar gmtime($filedate);
+
+my $format = $opt_t ? "plain text and " : "";
+if( $stdout ) {
+    open(CRT, '> -') or die "Couldn't open STDOUT: $!\n";
+} else {
+    open(CRT,">$crt.~") or die "Couldn't open $crt.~: $!\n";
+}
+print CRT <<EOT;
+##
+## Bundle of CA Root Certificates
+##
+## Certificate data from Mozilla ${datesrc}: ${currentdate} GMT
+##
+## This is a bundle of X.509 certificates of public Certificate Authorities
+## (CA). These were automatically extracted from Mozilla's root certificates
+## file (certdata.txt).  This file can be found in the mozilla source tree:
+## ${url}
+##
+## It contains the certificates in ${format}PEM format and therefore
+## can be directly used with curl / libcurl / php_curl, or with
+## an Apache+mod_ssl webserver for SSL client authentication.
+## Just configure this file as the SSLCACertificateFile.
+##
+## Conversion done with mk-ca-bundle.pl version $version.
+## SHA256: $newhash
+##
+
+EOT
+
+report "Processing  '$txt' ...";
+my $caname;
+my $certnum = 0;
+my $skipnum = 0;
+my $start_of_cert = 0;
+my $main_block = 0;
+my $main_block_name;
+my $trust_block = 0;
+my $trust_block_name;
+my @precert;
+my $cka_value;
+my $valid = 0;
+
+open(TXT,"$txt") or die "Couldn't open $txt: $!\n";
+while (<TXT>) {
+  if (/\*\*\*\*\* BEGIN LICENSE BLOCK \*\*\*\*\*/) {
+    print CRT;
+    print if ($opt_l);
+    while (<TXT>) {
+      print CRT;
+      print if ($opt_l);
+      last if (/\*\*\*\*\* END LICENSE BLOCK \*\*\*\*\*/);
+    }
+    next;
+  }
+  # The input file format consists of blocks of Mozilla objects.
+  # The blocks are separated by blank lines but may be related.
+  elsif(/^\s*$/) {
+    $main_block = 0;
+    $trust_block = 0;
+    next;
+  }
+  # Each certificate has a main block.
+  elsif(/^# Certificate "(.*)"/) {
+    (!$main_block && !$trust_block) or die "Unexpected certificate block";
+    $main_block = 1;
+    $main_block_name = $1;
+    # Reset all other certificate variables.
+    $trust_block = 0;
+    $trust_block_name = "";
+    $valid = 0;
+    $start_of_cert = 0;
+    $caname = "";
+    $cka_value = "";
+    undef @precert;
+    next;
+  }
+  # Each certificate's main block is followed by a trust block.
+  elsif(/^# Trust for (?:Certificate )?"(.*)"/) {
+    (!$main_block && !$trust_block) or die "Unexpected trust block";
+    $trust_block = 1;
+    $trust_block_name = $1;
+    if($main_block_name ne $trust_block_name) {
+      die "cert name \"$main_block_name\" != trust name \"$trust_block_name\"";
+    }
+    next;
+  }
+  # Ignore other blocks.
+  #
+  # There is a documentation comment block, a BEGINDATA block, and a bunch of
+  # blocks starting with "# Explicitly Distrust <certname>".
+  #
+  # The latter is for certificates that have already been removed and are not
+  # included. Not all explicitly distrusted certificates are ignored at this
+  # point, just those without an actual certificate.
+  elsif(!$main_block && !$trust_block) {
+    next;
+  }
+  elsif(/^#/) {
+    # The commented lines in a main block are plaintext metadata that describes
+    # the certificate. Issuer, Subject, Fingerprint, etc.
+    if($main_block) {
+      push @precert, $_ if not /^#$/;
+      if(/^# Not Valid After : (.*)/) {
+        my $stamp = $1;
+        use Time::Piece;
+        # Not Valid After : Thu Sep 30 14:01:15 2021
+        my $t = Time::Piece->strptime($stamp, "%a %b %d %H:%M:%S %Y");
+        my $delta = ($t->epoch - time()); # negative means no longer valid
+        if($delta < 0) {
+          $skipnum++;
+          report "Skipping: $main_block_name is not valid anymore" if ($opt_v);
+          $valid = 0;
+        }
+        else {
+          $valid = 1;
+        }
+      }
+    }
+    next;
+  }
+  elsif(!$valid) {
+    next;
+  }
+
+  chomp;
+
+  if($main_block) {
+    if(/^CKA_CLASS CK_OBJECT_CLASS CKO_CERTIFICATE/) {
+      !$start_of_cert or die "Duplicate CKO_CERTIFICATE object";
+      $start_of_cert = 1;
+      next;
+    }
+    elsif(!$start_of_cert) {
+      next;
+    }
+    elsif(/^CKA_LABEL UTF8 \"(.*)\"/) {
+      ($caname eq "") or die "Duplicate CKA_LABEL attribute";
+      $caname = $1;
+      if($caname ne $main_block_name) {
+        die "caname \"$caname\" != cert name \"$main_block_name\"";
+      }
+      next;
+    }
+    elsif(/^CKA_VALUE MULTILINE_OCTAL/) {
+      ($cka_value eq "") or die "Duplicate CKA_VALUE attribute";
+      while (<TXT>) {
+        last if (/^END/);
+        chomp;
+        my @octets = split(/\\/);
+        shift @octets;
+        for (@octets) {
+          $cka_value .= chr(oct);
+        }
+      }
+      next;
+    }
+    elsif (/^CKA_NSS_SERVER_DISTRUST_AFTER (CK_BBOOL CK_FALSE|MULTILINE_OCTAL)/) {
+      # Example:
+      # CKA_NSS_SERVER_DISTRUST_AFTER MULTILINE_OCTAL
+      # \062\060\060\066\061\067\060\060\060\060\060\060\132
+      # END
+      if($1 eq "MULTILINE_OCTAL") {
+        my @timestamp;
+        while (<TXT>) {
+          last if (/^END/);
+          chomp;
+          my @octets = split(/\\/);
+          shift @octets;
+          for (@octets) {
+            push @timestamp, chr(oct);
+          }
+        }
+        scalar(@timestamp) == 13 or die "Failed parsing timestamp";
+        # A trailing Z in the timestamp signifies UTC
+        if($timestamp[12] ne "Z") {
+          report "distrust date stamp is not using UTC";
+        }
+        # Example date: 200617000000Z
+        # Means 2020-06-17 00:00:00 UTC
+        my $distrustat =
+          timegm($timestamp[10] . $timestamp[11], # second
+                 $timestamp[8] . $timestamp[9],   # minute
+                 $timestamp[6] . $timestamp[7],   # hour
+                 $timestamp[4] . $timestamp[5],   # day
+                 ($timestamp[2] . $timestamp[3]) - 1, # month
+                 "20" . $timestamp[0] . $timestamp[1]); # year
+        if(time >= $distrustat) {
+          # not trusted anymore
+          $skipnum++;
+          report "Skipping: $main_block_name is not trusted anymore" if ($opt_v);
+          $valid = 0;
+        }
+        else {
+          # still trusted
+        }
+      }
+      next;
+    }
+    else {
+      next;
+    }
+  }
+
+  if(!$trust_block || !$start_of_cert || $caname eq "" || $cka_value eq "") {
+    die "Certificate extraction failed";
+  }
+
+  my %trust_purposes_by_level;
+
+  if(/^CKA_CLASS CK_OBJECT_CLASS CKO_NSS_TRUST/) {
+    # now scan the trust part to determine how we should trust this cert
+    while (<TXT>) {
+      if(/^\s*$/) {
+        $trust_block = 0;
+        last;
+      }
+      if (/^CKA_TRUST_([A-Z_]+)\s+CK_TRUST\s+CKT_NSS_([A-Z_]+)\s*$/) {
+        if ( !is_in_list($1,@valid_mozilla_trust_purposes) ) {
+          report "Warning: Unrecognized trust purpose for cert: $caname. Trust purpose: $1. Trust Level: $2";
+        } elsif ( !is_in_list($2,@valid_mozilla_trust_levels) ) {
+          report "Warning: Unrecognized trust level for cert: $caname. Trust purpose: $1. Trust Level: $2";
+        } else {
+          push @{$trust_purposes_by_level{$2}}, $1;
+        }
+      }
+    }
+
+    # Sanity check that an explicitly distrusted certificate only has trust
+    # purposes with a trust level of NOT_TRUSTED.
+    #
+    # Certificate objects that are explicitly distrusted are in a certificate
+    # block that starts # Certificate "Explicitly Distrust(ed) <certname>",
+    # where "Explicitly Distrust(ed) " was prepended to the original cert name.
+    if($caname =~ /distrust/i ||
+       $main_block_name =~ /distrust/i ||
+       $trust_block_name =~ /distrust/i) {
+      my @levels = keys %trust_purposes_by_level;
+      if(scalar(@levels) != 1 || $levels[0] ne "NOT_TRUSTED") {
+        die "\"$caname\" must have all trust purposes at level NOT_TRUSTED.";
+      }
+    }
+
+    if ( !should_output_cert(%trust_purposes_by_level) ) {
+      $skipnum ++;
+      report "Skipping: $caname lacks acceptable trust level" if ($opt_v);
+    } else {
+      my $encoded = MIME::Base64::encode_base64($cka_value, '');
+      $encoded =~ s/(.{1,${opt_w}})/$1\n/g;
+      my $pem = "-----BEGIN CERTIFICATE-----\n"
+              . $encoded
+              . "-----END CERTIFICATE-----\n";
+      print CRT "\n$caname\n";
+      my $maxStringLength = length(decode('UTF-8', $caname, Encode::FB_CROAK | Encode::LEAVE_SRC));
+      print CRT ("=" x $maxStringLength . "\n");
+      if ($opt_t) {
+        foreach my $key (sort keys %trust_purposes_by_level) {
+           my $string = $key . ": " . join(", ", @{$trust_purposes_by_level{$key}});
+           print CRT $string . "\n";
+        }
+      }
+      if($opt_m) {
+        print CRT for @precert;
+      }
+      if (!$opt_t) {
+        print CRT $pem;
+      } else {
+        my $pipe = "";
+        foreach my $hash (@included_signature_algorithms) {
+          $pipe = "|$openssl x509 -" . $hash . " -fingerprint -noout -inform PEM";
+          if (!$stdout) {
+            $pipe .= " >> $crt.~";
+            close(CRT) or die "Couldn't close $crt.~: $!";
+          }
+          open(TMP, $pipe) or die "Couldn't open openssl pipe: $!";
+          print TMP $pem;
+          close(TMP) or die "Couldn't close openssl pipe: $!";
+          if (!$stdout) {
+            open(CRT, ">>$crt.~") or die "Couldn't open $crt.~: $!";
+          }
+        }
+        $pipe = "|$openssl x509 -text -inform PEM";
+        if (!$stdout) {
+          $pipe .= " >> $crt.~";
+          close(CRT) or die "Couldn't close $crt.~: $!";
+        }
+        open(TMP, $pipe) or die "Couldn't open openssl pipe: $!";
+        print TMP $pem;
+        close(TMP) or die "Couldn't close openssl pipe: $!";
+        if (!$stdout) {
+          open(CRT, ">>$crt.~") or die "Couldn't open $crt.~: $!";
+        }
+      }
+      report "Processed: $caname" if ($opt_v);
+      $certnum ++;
+    }
+  }
+}
+close(TXT) or die "Couldn't close $txt: $!\n";
+close(CRT) or die "Couldn't close $crt.~: $!\n";
+unless( $stdout ) {
+    if ($opt_b && -e $crt) {
+        my $bk = 1;
+        while (-e "$crt.~${bk}~") {
+            $bk++;
+        }
+        rename $crt, "$crt.~${bk}~" or die "Failed to create backup $crt.~$bk}~: $!\n";
+    } elsif( -e $crt ) {
+        unlink( $crt ) or die "Failed to remove $crt: $!\n";
+    }
+    rename "$crt.~", $crt or die "Failed to rename $crt.~ to $crt: $!\n";
+}
+if($opt_u && -e $txt && !unlink($txt)) {
+  report "Failed to remove $txt: $!\n";
+}
+report "Done ($certnum CA certs processed, $skipnum skipped).";