/* 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.
* Removed --version/-V and --help/-h
* Removed parse_error(), using bb_error_msg() from Busybox instead
* Replaced our_malloc with xmalloc and our_realloc with xrealloc
- *
*/
+//config:config GETOPT
+//config: bool "getopt (5.6 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:
+//config:config FEATURE_GETOPT_LONG
+//config: bool "Support -l LONGOPTs"
+//config: default y
+//config: depends on GETOPT && LONG_OPTS
+//config: help
+//config: Enable support for long options (option -l).
+
+//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"
//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:"
/* 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
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);
if (compatible) {
/* For some reason, the original getopt gave no error
* when there were no arguments. */
- printf(" --\n");
+ puts(" --");
return 0;
}
bb_error_msg_and_die("missing optstring argument");
#if !ENABLE_FEATURE_GETOPT_LONG
opt = getopt32(argv, "+o:n:qQs:Tu", &optstr, &name, &s_arg);
#else
- applet_long_options = getopt_longopts;
- opt_complementary = "l::";
- 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) {