dhcp: tweak comments, no code changes

[oweals/busybox.git] / util-linux / getopt.c

diff --git a/util-linux/getopt.c b/util-linux/getopt.c
index 83cc1efea88873a6d8a624e2af32309ac5fa602b..1666d3d301ac86b4a165a5defd20abb6a65a7412 100644 (file)
--- a/util-linux/getopt.c
+++ b/util-linux/getopt.c
@@ -1,11 +1,10 @@
 /* vi: set sw=4 ts=4: */
 /*
  * getopt.c - Enhanced implementation of BSD getopt(1)
- *   Copyright (c) 1997, 1998, 1999, 2000  Frodo Looijaard <frodol@dds.nl>
+ * Copyright (c) 1997, 1998, 1999, 2000  Frodo Looijaard <frodol@dds.nl>
  *
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
-
 /*
  * Version 1.0-b4: Tue Sep 23 1997. First public release.
  * Version 1.0: Wed Nov 19 1997.
@@ -30,44 +29,30 @@
  *  Replaced our_malloc with xmalloc and our_realloc with xrealloc
  */
 //config:config GETOPT
-//config:      bool "getopt"
+//config:      bool "getopt (5.8 kb)"
 //config:      default y
 //config:      help
-//config:        The getopt utility is used to break up (parse) options in command
-//config:        lines to make it easy to write complex shell scripts that also check
-//config:        for legal (and illegal) options. If you want to write horribly
-//config:        complex shell scripts, or use some horribly complex shell script
-//config:        written by others, this utility may be for you. Most people will
-//config:        wisely leave this disabled.
+//config:      The getopt utility is used to break up (parse) options in command
+//config:      lines to make it easy to write complex shell scripts that also check
+//config:      for legal (and illegal) options. If you want to write horribly
+//config:      complex shell scripts, or use some horribly complex shell script
+//config:      written by others, this utility may be for you. Most people will
+//config:      wisely leave this disabled.
 //config:
 //config:config FEATURE_GETOPT_LONG
-//config:      bool "Support option -l"
-//config:      default y if LONG_OPTS
-//config:      depends on GETOPT
+//config:      bool "Support -l LONGOPTs"
+//config:      default y
+//config:      depends on GETOPT && LONG_OPTS
 //config:      help
-//config:        Enable support for long options (option -l).
+//config:      Enable support for long options (option -l).
 
-//applet:IF_GETOPT(APPLET(getopt, BB_DIR_BIN, BB_SUID_DROP))
+//applet:IF_GETOPT(APPLET_NOEXEC(getopt, getopt, BB_DIR_BIN, BB_SUID_DROP, getopt))
 
 //kbuild:lib-$(CONFIG_GETOPT) += getopt.o
 
 //usage:#define getopt_trivial_usage
 //usage:       "[OPTIONS] [--] OPTSTRING PARAMS"
 //usage:#define getopt_full_usage "\n\n"
-//usage:       IF_LONG_OPTS(
-//usage:       IF_FEATURE_GETOPT_LONG(
-//usage:       "       -a,--alternative                Allow long options starting with single -\n"
-//usage:       "       -l,--longoptions=LOPT[,...]     Long options to recognize\n"
-//usage:       )
-//usage:       "       -n,--name=PROGNAME              The name under which errors are reported"
-//usage:     "\n       -o,--options=OPTSTRING          Short options to recognize"
-//usage:     "\n       -q,--quiet                      No error messages on unrecognized options"
-//usage:     "\n       -Q,--quiet-output               No normal output"
-//usage:     "\n       -s,--shell=SHELL                Set shell quoting conventions"
-//usage:     "\n       -T,--test                       Version test (exits with 4)"
-//usage:     "\n       -u,--unquoted                   Don't quote output"
-//usage:       )
-//usage:       IF_NOT_LONG_OPTS(
 //usage:       IF_FEATURE_GETOPT_LONG(
 //usage:       "       -a              Allow long options starting with single -\n"
 //usage:       "       -l LOPT[,...]   Long options to recognize\n"
@@ -79,7 +64,6 @@
 //usage:     "\n       -s SHELL        Set shell quoting conventions"
 //usage:     "\n       -T              Version test (exits with 4)"
 //usage:     "\n       -u              Don't quote output"
-//usage:       )
 //usage:       IF_FEATURE_GETOPT_LONG( /* example uses -l, needs FEATURE_GETOPT_LONG */
 //usage:     "\n"
 //usage:     "\nExample:"
@@ -246,12 +230,7 @@ static int generate_output(char **argv, int argc, const char *optstr, const stru
 
        /* We used it already in main() in getopt32(),
         * we *must* reset getopt(3): */
-#ifdef __GLIBC__
-       optind = 0;
-#else /* BSD style */
-       optind = 1;
-       /* optreset = 1; */
-#endif
+       GETOPT_RESET();
 
        while (1) {
 #if ENABLE_FEATURE_GETOPT_LONG
@@ -347,9 +326,9 @@ static struct option *add_long_options(struct option *long_options, char *option
 
 static void set_shell(const char *new_shell)
 {
-       if (!strcmp(new_shell, "bash") || !strcmp(new_shell, "sh"))
+       if (strcmp(new_shell, "bash") == 0 || strcmp(new_shell, "sh") == 0)
                return;
-       if (!strcmp(new_shell, "tcsh") || !strcmp(new_shell, "csh"))
+       if (strcmp(new_shell, "tcsh") == 0 || strcmp(new_shell, "csh") == 0)
                option_mask32 |= SHELL_IS_TCSH;
        else
                bb_error_msg("unknown shell '%s', assuming bash", new_shell);
@@ -416,8 +395,7 @@ int getopt_main(int argc, char **argv)
 #if !ENABLE_FEATURE_GETOPT_LONG
        opt = getopt32(argv, "+o:n:qQs:Tu", &optstr, &name, &s_arg);
 #else
-       applet_long_options = getopt_longopts;
-       opt = getopt32(argv, "+o:n:qQs:Tual:*",
+       opt = getopt32long(argv, "+o:n:qQs:Tual:*", getopt_longopts,
                                        &optstr, &name, &s_arg, &l_arg);
        /* Effectuate the read options for the applet itself */
        while (l_arg) {