* getopt.c - Enhanced implementation of BSD getopt(1)
* Copyright (c) 1997, 1998, 1999, 2000 Frodo Looijaard <frodol@dds.nl>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/*
* Version 1.0.6: Tue Jun 27 2000
* No important changes
* Version 1.1.0: Tue Jun 30 2000
- * Added NLS support (partly written by Arkadiusz Mi<B6>kiewicz
+ * Added NLS support (partly written by Arkadiusz Mickiewicz
* <misiek@misiek.eu.org>)
* Ported to Busybox - Alfred M. Szmidt <ams@trillian.itslinux.org>
- * Removed --version/-V and --help/-h in
+ * 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
*
*/
-#include <getopt.h>
+//usage:#define getopt_trivial_usage
+//usage: "[OPTIONS]"
+//usage:#define getopt_full_usage "\n\n"
+//usage: IF_LONG_OPTS(
+//usage: " -a,--alternative Allow long options starting with single -"
+//usage: "\n -l,--longoptions=longopts Long options to be recognized"
+//usage: "\n -n,--name=progname The name under which errors are reported"
+//usage: "\n -o,--options=optstring Short options to be recognized"
+//usage: "\n -q,--quiet Disable error reporting by getopt(3)"
+//usage: "\n -Q,--quiet-output No normal output"
+//usage: "\n -s,--shell=shell Set shell quoting conventions"
+//usage: "\n -T,--test Test for getopt(1) version"
+//usage: "\n -u,--unquoted Don't quote the output"
+//usage: )
+//usage: IF_NOT_LONG_OPTS(
+//usage: " -a Allow long options starting with single -"
+//usage: "\n -l longopts Long options to be recognized"
+//usage: "\n -n progname The name under which errors are reported"
+//usage: "\n -o optstring Short options to be recognized"
+//usage: "\n -q Disable error reporting by getopt(3)"
+//usage: "\n -Q No normal output"
+//usage: "\n -s shell Set shell quoting conventions"
+//usage: "\n -T Test for getopt(1) version"
+//usage: "\n -u Don't quote the output"
+//usage: )
+//usage:
+//usage:#define getopt_example_usage
+//usage: "$ cat getopt.test\n"
+//usage: "#!/bin/sh\n"
+//usage: "GETOPT=`getopt -o ab:c:: --long a-long,b-long:,c-long:: \\\n"
+//usage: " -n 'example.busybox' -- \"$@\"`\n"
+//usage: "if [ $? != 0 ]; then exit 1; fi\n"
+//usage: "eval set -- \"$GETOPT\"\n"
+//usage: "while true; do\n"
+//usage: " case $1 in\n"
+//usage: " -a|--a-long) echo \"Option a\"; shift;;\n"
+//usage: " -b|--b-long) echo \"Option b, argument '$2'\"; shift 2;;\n"
+//usage: " -c|--c-long)\n"
+//usage: " case \"$2\" in\n"
+//usage: " \"\") echo \"Option c, no argument\"; shift 2;;\n"
+//usage: " *) echo \"Option c, argument '$2'\"; shift 2;;\n"
+//usage: " esac;;\n"
+//usage: " --) shift; break;;\n"
+//usage: " *) echo \"Internal error!\"; exit 1;;\n"
+//usage: " esac\n"
+//usage: "done\n"
+
+#if ENABLE_FEATURE_GETOPT_LONG
+# include <getopt.h>
+#endif
#include "libbb.h"
/* NON_OPT is the code that is returned when a non-option is found in '+'
mode */
enum {
NON_OPT = 1,
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
/* LONG_OPT is the code that is returned when a long option is found. */
LONG_OPT = 2
#endif
OPT_s = 0x10, // -s
OPT_T = 0x20, // -T
OPT_u = 0x40, // -u
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
OPT_a = 0x80, // -a
OPT_l = 0x100, // -l
#endif
* optstr must contain the short options, and longopts the long options.
* Other settings are found in global variables.
*/
-#if !ENABLE_GETOPT_LONG
-#define generate_output(argv,argc,optstr,longopts) generate_output(argv,argc,optstr)
+#if !ENABLE_FEATURE_GETOPT_LONG
+#define generate_output(argv,argc,optstr,longopts) \
+ generate_output(argv,argc,optstr)
#endif
static int generate_output(char **argv, int argc, const char *optstr, const struct option *longopts)
{
int exit_code = 0; /* We assume everything will be OK */
- unsigned opt;
-#if ENABLE_GETOPT_LONG
+ int opt;
+#if ENABLE_FEATURE_GETOPT_LONG
int longindex;
#endif
const char *charptr;
if (quiet_errors) /* No error reporting from getopt(3) */
opterr = 0;
- optind = 0; /* Reset getopt(3) */
+
+ /* 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
while (1) {
opt =
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
alternative ?
getopt_long_only(argc, argv, optstr, longopts, &longindex) :
getopt_long(argc, argv, optstr, longopts, &longindex);
#else
getopt(argc, argv, optstr);
#endif
- if (opt == EOF)
+ if (opt == -1)
break;
if (opt == '?' || opt == ':' )
exit_code = 1;
else if (!quiet_output) {
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
if (opt == LONG_OPT) {
printf(" --%s", longopts[longindex].name);
if (longopts[longindex].has_arg)
printf(" %s", normalize(optarg));
else {
printf(" -%c", opt);
- charptr = strchr(optstr,opt);
+ charptr = strchr(optstr, opt);
if (charptr != NULL && *++charptr == ':')
printf(" %s",
normalize(optarg ? optarg : ""));
return exit_code;
}
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
/*
* Register several long options. options is a string of long options,
* separated by commas or whitespace.
if (tlen == 0)
bb_error_msg_and_die("empty long option specified");
}
- long_options = xrealloc(long_options,
- sizeof(long_options[0]) * (long_nr+2));
+ long_options = xrealloc_vector(long_options, 4, long_nr);
long_options[long_nr].has_arg = arg_opt;
- long_options[long_nr].flag = NULL;
+ /*long_options[long_nr].flag = NULL; - xrealloc_vector did it */
long_options[long_nr].val = LONG_OPT;
long_options[long_nr].name = xstrdup(tokptr);
long_nr++;
- memset(&long_options[long_nr], 0, sizeof(long_options[0]));
+ /*memset(&long_options[long_nr], 0, sizeof(long_options[0])); - xrealloc_vector did it */
}
tokptr = strtok(NULL, ", \t\n");
}
static void set_shell(const char *new_shell)
{
- if (!strcmp(new_shell,"bash") || !strcmp(new_shell,"sh"))
+ if (!strcmp(new_shell, "bash") || !strcmp(new_shell, "sh"))
return;
- if (!strcmp(new_shell,"tcsh") || !strcmp(new_shell,"csh"))
+ if (!strcmp(new_shell, "tcsh") || !strcmp(new_shell, "csh"))
option_mask32 |= SHELL_IS_TCSH;
else
bb_error_msg("unknown shell '%s', assuming bash", new_shell);
* 4) Returned for -T
*/
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
static const char getopt_longopts[] ALIGN1 =
"options\0" Required_argument "o"
"longoptions\0" Required_argument "l"
;
#endif
-int getopt_main(int argc, char *argv[]);
-int getopt_main(int argc, char *argv[])
+int getopt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int getopt_main(int argc, char **argv)
{
char *optstr = NULL;
char *name = NULL;
unsigned opt;
const char *compatible;
char *s_arg;
-#if ENABLE_GETOPT_LONG
+#if ENABLE_FEATURE_GETOPT_LONG
struct option *long_options = NULL;
llist_t *l_arg = NULL;
#endif
return generate_output(argv+1, argc-1, s, long_options);
}
-#if !ENABLE_GETOPT_LONG
+#if !ENABLE_FEATURE_GETOPT_LONG
opt = getopt32(argv, "+o:n:qQs:Tu", &optstr, &name, &s_arg);
#else
applet_long_options = getopt_longopts;
&optstr, &name, &s_arg, &l_arg);
/* Effectuate the read options for the applet itself */
while (l_arg) {
- long_options = add_long_options(long_options, l_arg->data);
- l_arg = l_arg->link;
+ long_options = add_long_options(long_options, llist_pop(&l_arg));
}
#endif
projects / oweals / busybox.git / blobdiff