[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/networking/hostname.c b/ap/app/busybox/src/networking/hostname.c
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+++ b/ap/app/busybox/src/networking/hostname.c
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+/* vi: set sw=4 ts=4: */
+/*
+ * Mini hostname implementation for busybox
+ *
+ * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
+ *
+ * Adjusted by Erik Andersen <andersen@codepoet.org> to remove
+ * use of long options and GNU getopt. Improved the usage info.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+//usage:#define hostname_trivial_usage
+//usage: "[OPTIONS] [HOSTNAME | -F FILE]"
+//usage:#define hostname_full_usage "\n\n"
+//usage: "Get or set hostname or DNS domain name\n"
+//usage: "\n -s Short"
+//usage: "\n -i Addresses for the hostname"
+//usage: "\n -d DNS domain name"
+//usage: "\n -f Fully qualified domain name"
+//usage: "\n -F FILE Use FILE's content as hostname"
+//usage:
+//usage:#define hostname_example_usage
+//usage: "$ hostname\n"
+//usage: "sage\n"
+//usage:
+//usage:#define dnsdomainname_trivial_usage NOUSAGE_STR
+//usage:#define dnsdomainname_full_usage ""
+
+#include "libbb.h"
+
+static void do_sethostname(char *s, int isfile)
+{
+// if (!s)
+// return;
+ if (isfile) {
+ parser_t *parser = config_open2(s, xfopen_for_read);
+ while (config_read(parser, &s, 1, 1, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
+ do_sethostname(s, 0);
+ }
+ if (ENABLE_FEATURE_CLEAN_UP)
+ config_close(parser);
+ } else if (sethostname(s, strlen(s))) {
+// if (errno == EPERM)
+// bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
+ bb_perror_msg_and_die("sethostname");
+ }
+}
+
+/* Manpage circa 2009:
+ *
+ * hostname [-v] [-a] [--alias] [-d] [--domain] [-f] [--fqdn] [--long]
+ * [-i] [--ip-address] [-s] [--short] [-y] [--yp] [--nis]
+ *
+ * hostname [-v] [-F filename] [--file filename] / [hostname]
+ *
+ * domainname [-v] [-F filename] [--file filename] / [name]
+ * { bbox: not supported }
+ *
+ * nodename [-v] [-F filename] [--file filename] / [name]
+ * { bbox: not supported }
+ *
+ * dnsdomainname [-v]
+ * { bbox: supported: Linux kernel build needs this }
+ * nisdomainname [-v]
+ * { bbox: not supported }
+ * ypdomainname [-v]
+ * { bbox: not supported }
+ *
+ * -a, --alias
+ * Display the alias name of the host (if used).
+ * { bbox: not supported }
+ * -d, --domain
+ * Display the name of the DNS domain. Don't use the command
+ * domainname to get the DNS domain name because it will show the
+ * NIS domain name and not the DNS domain name. Use dnsdomainname
+ * instead.
+ * -f, --fqdn, --long
+ * Display the FQDN (Fully Qualified Domain Name). A FQDN consists
+ * of a short host name and the DNS domain name. Unless you are
+ * using bind or NIS for host lookups you can change the FQDN and
+ * the DNS domain name (which is part of the FQDN) in the
+ * /etc/hosts file.
+ * -i, --ip-address
+ * Display the IP address(es) of the host.
+ * -s, --short
+ * Display the short host name. This is the host name cut at the
+ * first dot.
+ * -v, --verbose
+ * Be verbose and tell what's going on.
+ * { bbox: supported but ignored }
+ * -y, --yp, --nis
+ * Display the NIS domain name. If a parameter is given (or --file
+ * name ) then root can also set a new NIS domain.
+ * { bbox: not supported }
+ * -F, --file filename
+ * Read the host name from the specified file. Comments (lines
+ * starting with a `#') are ignored.
+ */
+int hostname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int hostname_main(int argc UNUSED_PARAM, char **argv)
+{
+ enum {
+ OPT_d = 0x1,
+ OPT_f = 0x2,
+ OPT_i = 0x4,
+ OPT_s = 0x8,
+ OPT_F = 0x10,
+ OPT_dfis = 0xf,
+ };
+
+ unsigned opts;
+ char *buf;
+ char *hostname_str;
+
+#if ENABLE_LONG_OPTS
+ applet_long_options =
+ "domain\0" No_argument "d"
+ "fqdn\0" No_argument "f"
+ //Enable if seen in active use in some distro:
+ // "long\0" No_argument "f"
+ // "ip-address\0" No_argument "i"
+ // "short\0" No_argument "s"
+ // "verbose\0" No_argument "v"
+ "file\0" No_argument "F"
+ ;
+
+#endif
+ /* dnsdomainname from net-tools 1.60, hostname 1.100 (2001-04-14),
+ * supports hostname's options too (not just -v as manpage says) */
+ opts = getopt32(argv, "dfisF:v", &hostname_str);
+ argv += optind;
+ buf = safe_gethostname();
+ if (applet_name[0] == 'd') /* dnsdomainname? */
+ opts = OPT_d;
+
+ if (opts & OPT_dfis) {
+ /* Cases when we need full hostname (or its part) */
+ struct hostent *hp;
+ char *p;
+
+ hp = xgethostbyname(buf);
+ p = strchrnul(hp->h_name, '.');
+ if (opts & OPT_f) {
+ puts(hp->h_name);
+ } else if (opts & OPT_s) {
+ *p = '\0';
+ puts(hp->h_name);
+ } else if (opts & OPT_d) {
+ if (*p)
+ puts(p + 1);
+ } else /*if (opts & OPT_i)*/ {
+ if (hp->h_length == sizeof(struct in_addr)) {
+ struct in_addr **h_addr_list = (struct in_addr **)hp->h_addr_list;
+ while (*h_addr_list) {
+ printf(h_addr_list[1] ? "%s " : "%s", inet_ntoa(**h_addr_list));
+ h_addr_list++;
+ }
+ bb_putchar('\n');
+ }
+ }
+ } else if (opts & OPT_F) {
+ /* Set the hostname */
+ do_sethostname(hostname_str, 1);
+ } else if (argv[0]) {
+ /* Set the hostname */
+ do_sethostname(argv[0], 0);
+ } else {
+ /* Just print the current hostname */
+ puts(buf);
+ }
+
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(buf);
+ return EXIT_SUCCESS;
+}