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authorHarald Welte <laforge@gnumonks.org>2011-11-02 13:06:18 +0100
committerHarald Welte <laforge@gnumonks.org>2011-11-02 13:06:18 +0100
commitbed35df298f4914fabedfc7c9387af3f2f9a9e9f (patch)
tree0079fe22d0839637d8c777d2eebb91cd35b065c2 /lib/getopt.c
parentca36f293648ee19056df7ea9a1cbfcc93c800dc8 (diff)
Convert all code to Linux coding style
After so many years of silence, we don't expect the original author to return to the project. To make things a bit simpler for us, we convert the coding style to what we are used to (Linux style). The conversion was made using the 'Lindent' script which is part of the Linux kernel.
Diffstat (limited to 'lib/getopt.c')
-rw-r--r--lib/getopt.c1320
1 files changed, 638 insertions, 682 deletions
diff --git a/lib/getopt.c b/lib/getopt.c
index 9bafa45..f6e2a8e 100644
--- a/lib/getopt.c
+++ b/lib/getopt.c
@@ -24,19 +24,19 @@
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
Ditto for AIX 3.2 and <stdlib.h>. */
#ifndef _NO_PROTO
-# define _NO_PROTO
+#define _NO_PROTO
#endif
#ifdef HAVE_CONFIG_H
-# include <config.h>
+#include <config.h>
#endif
#if !defined __STDC__ || !__STDC__
/* This is a separate conditional since some stdc systems
reject `defined (const)'. */
-# ifndef const
-# define const
-# endif
+#ifndef const
+#define const
+#endif
#endif
#include <stdio.h>
@@ -51,41 +51,40 @@
#define GETOPT_INTERFACE_VERSION 2
#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
-# include <gnu-versions.h>
-# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
-# define ELIDE_CODE
-# endif
+#include <gnu-versions.h>
+#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+#define ELIDE_CODE
+#endif
#endif
#ifndef ELIDE_CODE
-
/* This needs to come after some library #include
to get __GNU_LIBRARY__ defined. */
#ifdef __GNU_LIBRARY__
/* Don't include stdlib.h for non-GNU C libraries because some of them
contain conflicting prototypes for getopt. */
-# include <stdlib.h>
-# include <unistd.h>
-#endif /* GNU C library. */
+#include <stdlib.h>
+#include <unistd.h>
+#endif /* GNU C library. */
#ifdef VMS
-# include <unixlib.h>
-# if HAVE_STRING_H - 0
-# include <string.h>
-# endif
+#include <unixlib.h>
+#if HAVE_STRING_H - 0
+#include <string.h>
+#endif
#endif
#ifndef _
/* This is for other GNU distributions with internationalized messages. */
-# if defined HAVE_LIBINTL_H || defined _LIBC
-# include <libintl.h>
-# ifndef _
-# define _(msgid) gettext (msgid)
-# endif
-# else
-# define _(msgid) (msgid)
-# endif
+#if defined HAVE_LIBINTL_H || defined _LIBC
+#include <libintl.h>
+#ifndef _
+#define _(msgid) gettext (msgid)
+#endif
+#else
+#define _(msgid) (msgid)
+#endif
#endif
/* This version of `getopt' appears to the caller like standard Unix `getopt'
@@ -182,9 +181,8 @@ int optopt = '?';
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
-static enum
-{
- REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+static enum {
+ REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
/* Value of POSIXLY_CORRECT environment variable. */
@@ -195,35 +193,33 @@ static char *posixly_correct;
because there are many ways it can cause trouble.
On some systems, it contains special magic macros that don't work
in GCC. */
-# include <string.h>
-# define my_index strchr
+#include <string.h>
+#define my_index strchr
#else
-# if HAVE_STRING_H
-# include <string.h>
-# else
-# include <strings.h>
-# endif
+#if HAVE_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
/* Avoid depending on library functions or files
whose names are inconsistent. */
#ifndef getenv
-extern char *getenv ();
+extern char *getenv();
#endif
-static char *
-my_index (str, chr)
- const char *str;
- int chr;
+static char *my_index(str, chr)
+const char *str;
+int chr;
{
- while (*str)
- {
- if (*str == chr)
- return (char *) str;
- str++;
- }
- return 0;
+ while (*str) {
+ if (*str == chr)
+ return (char *)str;
+ str++;
+ }
+ return 0;
}
/* If using GCC, we can safely declare strlen this way.
@@ -231,11 +227,11 @@ my_index (str, chr)
#ifdef __GNUC__
/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
That was relevant to code that was here before. */
-# if (!defined __STDC__ || !__STDC__) && !defined strlen
+#if (!defined __STDC__ || !__STDC__) && !defined strlen
/* gcc with -traditional declares the built-in strlen to return int,
and has done so at least since version 2.4.5. -- rms. */
-extern int strlen (const char *);
-# endif /* not __STDC__ */
+extern int strlen(const char *);
+#endif /* not __STDC__ */
#endif /* __GNUC__ */
#endif /* not __GNU_LIBRARY__ */
@@ -259,28 +255,28 @@ extern char **__libc_argv;
/* Bash 2.0 gives us an environment variable containing flags
indicating ARGV elements that should not be considered arguments. */
-# ifdef USE_NONOPTION_FLAGS
+#ifdef USE_NONOPTION_FLAGS
/* Defined in getopt_init.c */
extern char *__getopt_nonoption_flags;
static int nonoption_flags_max_len;
static int nonoption_flags_len;
-# endif
+#endif
-# ifdef USE_NONOPTION_FLAGS
-# define SWAP_FLAGS(ch1, ch2) \
+#ifdef USE_NONOPTION_FLAGS
+#define SWAP_FLAGS(ch1, ch2) \
if (nonoption_flags_len > 0) \
{ \
char __tmp = __getopt_nonoption_flags[ch1]; \
__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
__getopt_nonoption_flags[ch2] = __tmp; \
}
-# else
-# define SWAP_FLAGS(ch1, ch2)
-# endif
-#else /* !_LIBC */
-# define SWAP_FLAGS(ch1, ch2)
-#endif /* _LIBC */
+#else
+#define SWAP_FLAGS(ch1, ch2)
+#endif
+#else /* !_LIBC */
+#define SWAP_FLAGS(ch1, ch2)
+#endif /* _LIBC */
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,last_nonopt)
@@ -292,158 +288,145 @@ static int nonoption_flags_len;
the new indices of the non-options in ARGV after they are moved. */
#if defined __STDC__ && __STDC__
-static void exchange (char **);
+static void exchange(char **);
#endif
-static void
-exchange (argv)
- char **argv;
+static void exchange(argv)
+char **argv;
{
- int bottom = first_nonopt;
- int middle = last_nonopt;
- int top = optind;
- char *tem;
+ int bottom = first_nonopt;
+ int middle = last_nonopt;
+ int top = optind;
+ char *tem;
- /* Exchange the shorter segment with the far end of the longer segment.
- That puts the shorter segment into the right place.
- It leaves the longer segment in the right place overall,
- but it consists of two parts that need to be swapped next. */
+ /* Exchange the shorter segment with the far end of the longer segment.
+ That puts the shorter segment into the right place.
+ It leaves the longer segment in the right place overall,
+ but it consists of two parts that need to be swapped next. */
#if defined _LIBC && defined USE_NONOPTION_FLAGS
- /* First make sure the handling of the `__getopt_nonoption_flags'
- string can work normally. Our top argument must be in the range
- of the string. */
- if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
- {
- /* We must extend the array. The user plays games with us and
- presents new arguments. */
- char *new_str = malloc (top + 1);
- if (new_str == NULL)
- nonoption_flags_len = nonoption_flags_max_len = 0;
- else
- {
- memset (__mempcpy (new_str, __getopt_nonoption_flags,
- nonoption_flags_max_len),
- '\0', top + 1 - nonoption_flags_max_len);
- nonoption_flags_max_len = top + 1;
- __getopt_nonoption_flags = new_str;
+ /* First make sure the handling of the `__getopt_nonoption_flags'
+ string can work normally. Our top argument must be in the range
+ of the string. */
+ if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) {
+ /* We must extend the array. The user plays games with us and
+ presents new arguments. */
+ char *new_str = malloc(top + 1);
+ if (new_str == NULL)
+ nonoption_flags_len = nonoption_flags_max_len = 0;
+ else {
+ memset(__mempcpy(new_str, __getopt_nonoption_flags,
+ nonoption_flags_max_len),
+ '\0', top + 1 - nonoption_flags_max_len);
+ nonoption_flags_max_len = top + 1;
+ __getopt_nonoption_flags = new_str;
+ }
}
- }
#endif
- while (top > middle && middle > bottom)
- {
- if (top - middle > middle - bottom)
- {
- /* Bottom segment is the short one. */
- int len = middle - bottom;
- register int i;
-
- /* Swap it with the top part of the top segment. */
- for (i = 0; i < len; i++)
- {
- tem = argv[bottom + i];
- argv[bottom + i] = argv[top - (middle - bottom) + i];
- argv[top - (middle - bottom) + i] = tem;
- SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
- }
- /* Exclude the moved bottom segment from further swapping. */
- top -= len;
- }
- else
- {
- /* Top segment is the short one. */
- int len = top - middle;
- register int i;
-
- /* Swap it with the bottom part of the bottom segment. */
- for (i = 0; i < len; i++)
- {
- tem = argv[bottom + i];
- argv[bottom + i] = argv[middle + i];
- argv[middle + i] = tem;
- SWAP_FLAGS (bottom + i, middle + i);
- }
- /* Exclude the moved top segment from further swapping. */
- bottom += len;
+ while (top > middle && middle > bottom) {
+ if (top - middle > middle - bottom) {
+ /* Bottom segment is the short one. */
+ int len = middle - bottom;
+ register int i;
+
+ /* Swap it with the top part of the top segment. */
+ for (i = 0; i < len; i++) {
+ tem = argv[bottom + i];
+ argv[bottom + i] =
+ argv[top - (middle - bottom) + i];
+ argv[top - (middle - bottom) + i] = tem;
+ SWAP_FLAGS(bottom + i,
+ top - (middle - bottom) + i);
+ }
+ /* Exclude the moved bottom segment from further swapping. */
+ top -= len;
+ } else {
+ /* Top segment is the short one. */
+ int len = top - middle;
+ register int i;
+
+ /* Swap it with the bottom part of the bottom segment. */
+ for (i = 0; i < len; i++) {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[middle + i];
+ argv[middle + i] = tem;
+ SWAP_FLAGS(bottom + i, middle + i);
+ }
+ /* Exclude the moved top segment from further swapping. */
+ bottom += len;
+ }
}
- }
- /* Update records for the slots the non-options now occupy. */
+ /* Update records for the slots the non-options now occupy. */
- first_nonopt += (optind - last_nonopt);
- last_nonopt = optind;
+ first_nonopt += (optind - last_nonopt);
+ last_nonopt = optind;
}
/* Initialize the internal data when the first call is made. */
#if defined __STDC__ && __STDC__
-static const char *_getopt_initialize (int, char *const *, const char *);
+static const char *_getopt_initialize(int, char *const *, const char *);
#endif
-static const char *
-_getopt_initialize (argc, argv, optstring)
- int argc;
- char *const *argv;
- const char *optstring;
+static const char *_getopt_initialize(argc, argv, optstring)
+int argc;
+char *const *argv;
+const char *optstring;
{
- /* Start processing options with ARGV-element 1 (since ARGV-element 0
- is the program name); the sequence of previously skipped
- non-option ARGV-elements is empty. */
+ /* Start processing options with ARGV-element 1 (since ARGV-element 0
+ is the program name); the sequence of previously skipped
+ non-option ARGV-elements is empty. */
- first_nonopt = last_nonopt = optind;
+ first_nonopt = last_nonopt = optind;
- nextchar = NULL;
+ nextchar = NULL;
- posixly_correct = getenv ("POSIXLY_CORRECT");
+ posixly_correct = getenv("POSIXLY_CORRECT");
- /* Determine how to handle the ordering of options and nonoptions. */
+ /* Determine how to handle the ordering of options and nonoptions. */
- if (optstring[0] == '-')
- {
- ordering = RETURN_IN_ORDER;
- ++optstring;
- }
- else if (optstring[0] == '+')
- {
- ordering = REQUIRE_ORDER;
- ++optstring;
- }
- else if (posixly_correct != NULL)
- ordering = REQUIRE_ORDER;
- else
- ordering = PERMUTE;
+ if (optstring[0] == '-') {
+ ordering = RETURN_IN_ORDER;
+ ++optstring;
+ } else if (optstring[0] == '+') {
+ ordering = REQUIRE_ORDER;
+ ++optstring;
+ } else if (posixly_correct != NULL)
+ ordering = REQUIRE_ORDER;
+ else
+ ordering = PERMUTE;
#if defined _LIBC && defined USE_NONOPTION_FLAGS
- if (posixly_correct == NULL
- && argc == __libc_argc && argv == __libc_argv)
- {
- if (nonoption_flags_max_len == 0)
- {
- if (__getopt_nonoption_flags == NULL
- || __getopt_nonoption_flags[0] == '\0')
- nonoption_flags_max_len = -1;
- else
- {
- const char *orig_str = __getopt_nonoption_flags;
- int len = nonoption_flags_max_len = strlen (orig_str);
- if (nonoption_flags_max_len < argc)
- nonoption_flags_max_len = argc;
- __getopt_nonoption_flags =
- (char *) malloc (nonoption_flags_max_len);
- if (__getopt_nonoption_flags == NULL)
- nonoption_flags_max_len = -1;
- else
- memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
- '\0', nonoption_flags_max_len - len);
- }
- }
- nonoption_flags_len = nonoption_flags_max_len;
- }
- else
- nonoption_flags_len = 0;
+ if (posixly_correct == NULL
+ && argc == __libc_argc && argv == __libc_argv) {
+ if (nonoption_flags_max_len == 0) {
+ if (__getopt_nonoption_flags == NULL
+ || __getopt_nonoption_flags[0] == '\0')
+ nonoption_flags_max_len = -1;
+ else {
+ const char *orig_str = __getopt_nonoption_flags;
+ int len = nonoption_flags_max_len =
+ strlen(orig_str);
+ if (nonoption_flags_max_len < argc)
+ nonoption_flags_max_len = argc;
+ __getopt_nonoption_flags =
+ (char *)malloc(nonoption_flags_max_len);
+ if (__getopt_nonoption_flags == NULL)
+ nonoption_flags_max_len = -1;
+ else
+ memset(__mempcpy
+ (__getopt_nonoption_flags,
+ orig_str, len), '\0',
+ nonoption_flags_max_len - len);
+ }
+ }
+ nonoption_flags_len = nonoption_flags_max_len;
+ } else
+ nonoption_flags_len = 0;
#endif
- return optstring;
+ return optstring;
}
/* Scan elements of ARGV (whose length is ARGC) for option characters
@@ -502,554 +485,527 @@ _getopt_initialize (argc, argv, optstring)
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
long-named options. */
-int
-_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
- int argc;
- char *const *argv;
- const char *optstring;
- const struct option *longopts;
- int *longind;
- int long_only;
+int _getopt_internal(argc, argv, optstring, longopts, longind, long_only)
+int argc;
+char *const *argv;
+const char *optstring;
+const struct option *longopts;
+int *longind;
+int long_only;
{
- int print_errors = opterr;
- if (optstring[0] == ':')
- print_errors = 0;
+ int print_errors = opterr;
+ if (optstring[0] == ':')
+ print_errors = 0;
- if (argc < 1)
- return -1;
+ if (argc < 1)
+ return -1;
- optarg = NULL;
+ optarg = NULL;
- if (optind == 0 || !__getopt_initialized)
- {
- if (optind == 0)
- optind = 1; /* Don't scan ARGV[0], the program name. */
- optstring = _getopt_initialize (argc, argv, optstring);
- __getopt_initialized = 1;
- }
+ if (optind == 0 || !__getopt_initialized) {
+ if (optind == 0)
+ optind = 1; /* Don't scan ARGV[0], the program name. */
+ optstring = _getopt_initialize(argc, argv, optstring);
+ __getopt_initialized = 1;
+ }
- /* Test whether ARGV[optind] points to a non-option argument.
- Either it does not have option syntax, or there is an environment flag
- from the shell indicating it is not an option. The later information
- is only used when the used in the GNU libc. */
+ /* Test whether ARGV[optind] points to a non-option argument.
+ Either it does not have option syntax, or there is an environment flag
+ from the shell indicating it is not an option. The later information
+ is only used when the used in the GNU libc. */
#if defined _LIBC && defined USE_NONOPTION_FLAGS
-# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
|| (optind < nonoption_flags_len \
&& __getopt_nonoption_flags[optind] == '1'))
#else
-# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
#endif
- if (nextchar == NULL || *nextchar == '\0')
- {
- /* Advance to the next ARGV-element. */
-
- /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
- moved back by the user (who may also have changed the arguments). */
- if (last_nonopt > optind)
- last_nonopt = optind;
- if (first_nonopt > optind)
- first_nonopt = optind;
+ if (nextchar == NULL || *nextchar == '\0') {
+ /* Advance to the next ARGV-element. */
- if (ordering == PERMUTE)
- {
- /* If we have just processed some options following some non-options,
- exchange them so that the options come first. */
+ /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
+ moved back by the user (who may also have changed the arguments). */
+ if (last_nonopt > optind)
+ last_nonopt = optind;
+ if (first_nonopt > optind)
+ first_nonopt = optind;
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (last_nonopt != optind)
- first_nonopt = optind;
+ if (ordering == PERMUTE) {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
- /* Skip any additional non-options
- and extend the range of non-options previously skipped. */
+ if (first_nonopt != last_nonopt
+ && last_nonopt != optind)
+ exchange((char **)argv);
+ else if (last_nonopt != optind)
+ first_nonopt = optind;
- while (optind < argc && NONOPTION_P)
- optind++;
- last_nonopt = optind;
- }
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
- /* The special ARGV-element `--' means premature end of options.
- Skip it like a null option,
- then exchange with previous non-options as if it were an option,
- then skip everything else like a non-option. */
+ while (optind < argc && NONOPTION_P)
+ optind++;
+ last_nonopt = optind;
+ }
- if (optind != argc && !strcmp (argv[optind], "--"))
- {
- optind++;
+ /* The special ARGV-element `--' means premature end of options.
+ Skip it like a null option,
+ then exchange with previous non-options as if it were an option,
+ then skip everything else like a non-option. */
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (first_nonopt == last_nonopt)
- first_nonopt = optind;
- last_nonopt = argc;
+ if (optind != argc && !strcmp(argv[optind], "--")) {
+ optind++;
- optind = argc;
- }
+ if (first_nonopt != last_nonopt
+ && last_nonopt != optind)
+ exchange((char **)argv);
+ else if (first_nonopt == last_nonopt)
+ first_nonopt = optind;
+ last_nonopt = argc;
- /* If we have done all the ARGV-elements, stop the scan
- and back over any non-options that we skipped and permuted. */
+ optind = argc;
+ }
- if (optind == argc)
- {
- /* Set the next-arg-index to point at the non-options
- that we previously skipped, so the caller will digest them. */
- if (first_nonopt != last_nonopt)
- optind = first_nonopt;
- return -1;
- }
+ /* If we have done all the ARGV-elements, stop the scan
+ and back over any non-options that we skipped and permuted. */
- /* If we have come to a non-option and did not permute it,
- either stop the scan or describe it to the caller and pass it by. */
+ if (optind == argc) {
+ /* Set the next-arg-index to point at the non-options
+ that we previously skipped, so the caller will digest them. */
+ if (first_nonopt != last_nonopt)
+ optind = first_nonopt;
+ return -1;
+ }
- if (NONOPTION_P)
- {
- if (ordering == REQUIRE_ORDER)
- return -1;
- optarg = argv[optind++];
- return 1;
- }
+ /* If we have come to a non-option and did not permute it,
+ either stop the scan or describe it to the caller and pass it by. */
- /* We have found another option-ARGV-element.
- Skip the initial punctuation. */
+ if (NONOPTION_P) {
+ if (ordering == REQUIRE_ORDER)
+ return -1;
+ optarg = argv[optind++];
+ return 1;
+ }
- nextchar = (argv[optind] + 1
- + (longopts != NULL && argv[optind][1] == '-'));
- }
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
- /* Decode the current option-ARGV-element. */
-
- /* Check whether the ARGV-element is a long option.
-
- If long_only and the ARGV-element has the form "-f", where f is
- a valid short option, don't consider it an abbreviated form of
- a long option that starts with f. Otherwise there would be no
- way to give the -f short option.
-
- On the other hand, if there's a long option "fubar" and
- the ARGV-element is "-fu", do consider that an abbreviation of
- the long option, just like "--fu", and not "-f" with arg "u".
-
- This distinction seems to be the most useful approach. */
-
- if (longopts != NULL
- && (argv[optind][1] == '-'
- || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
- {
- char *nameend;
- const struct option *p;
- const struct option *pfound = NULL;
- int exact = 0;
- int ambig = 0;
- int indfound = -1;
- int option_index;
-
- for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, nextchar, nameend - nextchar))
- {
- if ((unsigned int) (nameend - nextchar)
- == (unsigned int) strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
- }
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
- }
- else if (long_only
- || pfound->has_arg != p->has_arg
- || pfound->flag != p->flag
- || pfound->val != p->val)
- /* Second or later nonexact match found. */
- ambig = 1;
- }
-
- if (ambig && !exact)
- {
- if (print_errors)
- fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
- argv[0], argv[optind]);
- nextchar += strlen (nextchar);
- optind++;
- optopt = 0;
- return '?';
+ nextchar = (argv[optind] + 1
+ + (longopts != NULL && argv[optind][1] == '-'));
}
- if (pfound != NULL)
- {
- option_index = indfound;
- optind++;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- optarg = nameend + 1;
- else
- {
- if (print_errors)
- {
- if (argv[optind - 1][1] == '-')
- /* --option */
- fprintf (stderr,
- _("%s: option `--%s' doesn't allow an argument\n"),
- argv[0], pfound->name);
- else
- /* +option or -option */
- fprintf (stderr,
- _("%s: option `%c%s' doesn't allow an argument\n"),
- argv[0], argv[optind - 1][0], pfound->name);
- }
-
- nextchar += strlen (nextchar);
-
- optopt = pfound->val;
- return '?';
+ /* Decode the current option-ARGV-element. */
+
+ /* Check whether the ARGV-element is a long option.
+
+ If long_only and the ARGV-element has the form "-f", where f is
+ a valid short option, don't consider it an abbreviated form of
+ a long option that starts with f. Otherwise there would be no
+ way to give the -f short option.
+
+ On the other hand, if there's a long option "fubar" and
+ the ARGV-element is "-fu", do consider that an abbreviation of
+ the long option, just like "--fu", and not "-f" with arg "u".
+
+ This distinction seems to be the most useful approach. */
+
+ if (longopts != NULL
+ && (argv[optind][1] == '-'
+ || (long_only
+ && (argv[optind][2]
+ || !my_index(optstring, argv[optind][1]))))) {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = -1;
+ int option_index;
+
+ for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name;
+ p++, option_index++)
+ if (!strncmp(p->name, nextchar, nameend - nextchar)) {
+ if ((unsigned int)(nameend - nextchar)
+ == (unsigned int)strlen(p->name)) {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ } else if (pfound == NULL) {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ } else if (long_only
+ || pfound->has_arg != p->has_arg
+ || pfound->flag != p->flag
+ || pfound->val != p->val)
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+
+ if (ambig && !exact) {
+ if (print_errors)
+ fprintf(stderr,
+ _("%s: option `%s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ nextchar += strlen(nextchar);
+ optind++;
+ optopt = 0;
+ return '?';
}
- }
- else if (pfound->has_arg == 1)
- {
- if (optind < argc)
- optarg = argv[optind++];
- else
- {
- if (print_errors)
- fprintf (stderr,
- _("%s: option `%s' requires an argument\n"),
- argv[0], argv[optind - 1]);
- nextchar += strlen (nextchar);
- optopt = pfound->val;
- return optstring[0] == ':' ? ':' : '?';
+
+ if (pfound != NULL) {
+ option_index = indfound;
+ optind++;
+ if (*nameend) {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = nameend + 1;
+ else {
+ if (print_errors) {
+ if (argv[optind - 1][1] == '-')
+ /* --option */
+ fprintf(stderr,
+ _
+ ("%s: option `--%s' doesn't allow an argument\n"),
+ argv[0],
+ pfound->name);
+ else
+ /* +option or -option */
+ fprintf(stderr,
+ _
+ ("%s: option `%c%s' doesn't allow an argument\n"),
+ argv[0],
+ argv[optind -
+ 1][0],
+ pfound->name);
+ }
+
+ nextchar += strlen(nextchar);
+
+ optopt = pfound->val;
+ return '?';
+ }
+ } else if (pfound->has_arg == 1) {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else {
+ if (print_errors)
+ fprintf(stderr,
+ _
+ ("%s: option `%s' requires an argument\n"),
+ argv[0],
+ argv[optind - 1]);
+ nextchar += strlen(nextchar);
+ optopt = pfound->val;
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen(nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag) {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
}
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
- /* Can't find it as a long option. If this is not getopt_long_only,
- or the option starts with '--' or is not a valid short
- option, then it's an error.
- Otherwise interpret it as a short option. */
- if (!long_only || argv[optind][1] == '-'
- || my_index (optstring, *nextchar) == NULL)
- {
- if (print_errors)
- {
- if (argv[optind][1] == '-')
- /* --option */
- fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
- argv[0], nextchar);
- else
- /* +option or -option */
- fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
- argv[0], argv[optind][0], nextchar);
- }
- nextchar = (char *) "";
- optind++;
- optopt = 0;
- return '?';
+ /* Can't find it as a long option. If this is not getopt_long_only,
+ or the option starts with '--' or is not a valid short
+ option, then it's an error.
+ Otherwise interpret it as a short option. */
+ if (!long_only || argv[optind][1] == '-'
+ || my_index(optstring, *nextchar) == NULL) {
+ if (print_errors) {
+ if (argv[optind][1] == '-')
+ /* --option */
+ fprintf(stderr,
+ _
+ ("%s: unrecognized option `--%s'\n"),
+ argv[0], nextchar);
+ else
+ /* +option or -option */
+ fprintf(stderr,
+ _
+ ("%s: unrecognized option `%c%s'\n"),
+ argv[0], argv[optind][0],
+ nextchar);
+ }
+ nextchar = (char *)"";
+ optind++;
+ optopt = 0;
+ return '?';
+ }
}
- }
- /* Look at and handle the next short option-character. */
-
- {
- char c = *nextchar++;
- char *temp = my_index (optstring, c);
-
- /* Increment `optind' when we start to process its last character. */
- if (*nextchar == '\0')
- ++optind;
-
- if (temp == NULL || c == ':')
- {
- if (print_errors)
- {
- if (posixly_correct)
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, _("%s: illegal option -- %c\n"),
- argv[0], c);
- else
- fprintf (stderr, _("%s: invalid option -- %c\n"),
- argv[0], c);
- }
- optopt = c;
- return '?';
- }
- /* Convenience. Treat POSIX -W foo same as long option --foo */
- if (temp[0] == 'W' && temp[1] == ';')
- {
- char *nameend;
- const struct option *p;
- const struct option *pfound = NULL;
- int exact = 0;
- int ambig = 0;
- int indfound = 0;
- int option_index;
-
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- optind++;
- }
- else if (optind == argc)
- {
- if (print_errors)
- {
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, _("%s: option requires an argument -- %c\n"),
- argv[0], c);
- }
- optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- return c;
- }
- else
- /* We already incremented `optind' once;
- increment it again when taking next ARGV-elt as argument. */
- optarg = argv[optind++];
-
- /* optarg is now the argument, see if it's in the
- table of longopts. */
-
- for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, nextchar, nameend - nextchar))
- {
- if ((unsigned int) (nameend - nextchar) == strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
+ /* Look at and handle the next short option-character. */
+
+ {
+ char c = *nextchar++;
+ char *temp = my_index(optstring, c);
+
+ /* Increment `optind' when we start to process its last character. */
+ if (*nextchar == '\0')
+ ++optind;
+
+ if (temp == NULL || c == ':') {
+ if (print_errors) {
+ if (posixly_correct)
+ /* 1003.2 specifies the format of this message. */
+ fprintf(stderr,
+ _("%s: illegal option -- %c\n"),
+ argv[0], c);
+ else
+ fprintf(stderr,
+ _("%s: invalid option -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ return '?';
}
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
+ /* Convenience. Treat POSIX -W foo same as long option --foo */
+ if (temp[0] == 'W' && temp[1] == ';') {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = 0;
+ int option_index;
+
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0') {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ } else if (optind == argc) {
+ if (print_errors) {
+ /* 1003.2 specifies the format of this message. */
+ fprintf(stderr,
+ _
+ ("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ return c;
+ } else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+
+ /* optarg is now the argument, see if it's in the
+ table of longopts. */
+
+ for (nextchar = nameend = optarg;
+ *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name;
+ p++, option_index++)
+ if (!strncmp
+ (p->name, nextchar, nameend - nextchar)) {
+ if ((unsigned int)(nameend -
+ nextchar) ==
+ strlen(p->name)) {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ } else if (pfound == NULL) {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ } else
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+ if (ambig && !exact) {
+ if (print_errors)
+ fprintf(stderr,
+ _
+ ("%s: option `-W %s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ nextchar += strlen(nextchar);
+ optind++;
+ return '?';
+ }
+ if (pfound != NULL) {
+ option_index = indfound;
+ if (*nameend) {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = nameend + 1;
+ else {
+ if (print_errors)
+ fprintf(stderr, _("\
+%s: option `-W %s' doesn't allow an argument\n"), argv[0], pfound->name);
+
+ nextchar += strlen(nextchar);
+ return '?';
+ }
+ } else if (pfound->has_arg == 1) {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else {
+ if (print_errors)
+ fprintf(stderr,
+ _
+ ("%s: option `%s' requires an argument\n"),
+ argv[0],
+ argv[optind -
+ 1]);
+ nextchar += strlen(nextchar);
+ return optstring[0] ==
+ ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen(nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag) {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+ nextchar = NULL;
+ return 'W'; /* Let the application handle it. */
}
- else
- /* Second or later nonexact match found. */
- ambig = 1;
- }
- if (ambig && !exact)
- {
- if (print_errors)
- fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
- argv[0], argv[optind]);
- nextchar += strlen (nextchar);
- optind++;
- return '?';
- }
- if (pfound != NULL)
- {
- option_index = indfound;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- optarg = nameend + 1;
- else
- {
- if (print_errors)
- fprintf (stderr, _("\
-%s: option `-W %s' doesn't allow an argument\n"),
- argv[0], pfound->name);
-
- nextchar += strlen (nextchar);
- return '?';
- }
- }
- else if (pfound->has_arg == 1)
- {
- if (optind < argc)
- optarg = argv[optind++];
- else
- {
- if (print_errors)
- fprintf (stderr,
- _("%s: option `%s' requires an argument\n"),
- argv[0], argv[optind - 1]);
- nextchar += strlen (nextchar);
- return optstring[0] == ':' ? ':' : '?';
- }
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
- nextchar = NULL;
- return 'W'; /* Let the application handle it. */
- }
- if (temp[1] == ':')
- {
- if (temp[2] == ':')
- {
- /* This is an option that accepts an argument optionally. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- optind++;
- }
- else
- optarg = NULL;
- nextchar = NULL;
- }
- else
- {
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- optind++;
- }
- else if (optind == argc)
- {
- if (print_errors)
- {
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr,
- _("%s: option requires an argument -- %c\n"),
- argv[0], c);
- }
- optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- }
- else
- /* We already incremented `optind' once;
- increment it again when taking next ARGV-elt as argument. */
- optarg = argv[optind++];
- nextchar = NULL;
- }
- }
- return c;
- }
+ if (temp[1] == ':') {
+ if (temp[2] == ':') {
+ /* This is an option that accepts an argument optionally. */
+ if (*nextchar != '\0') {
+ optarg = nextchar;
+ optind++;
+ } else
+ optarg = NULL;
+ nextchar = NULL;
+ } else {
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0') {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ } else if (optind == argc) {
+ if (print_errors) {
+ /* 1003.2 specifies the format of this message. */
+ fprintf(stderr,
+ _
+ ("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ } else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+ nextchar = NULL;
+ }
+ }
+ return c;
+ }
}
-int
-getopt (argc, argv, optstring)
- int argc;
- char *const *argv;
- const char *optstring;
+int getopt(argc, argv, optstring)
+int argc;
+char *const *argv;
+const char *optstring;
{
- return _getopt_internal (argc, argv, optstring,
- (const struct option *) 0,
- (int *) 0,
- 0);
+ return _getopt_internal(argc, argv, optstring,
+ (const struct option *)0, (int *)0, 0);
}
-#endif /* Not ELIDE_CODE. */
+#endif /* Not ELIDE_CODE. */
#ifdef TEST
/* Compile with -DTEST to make an executable for use in testing
the above definition of `getopt'. */
-int
-main (argc, argv)
- int argc;
- char **argv;
+int main(argc, argv)
+int argc;
+char **argv;
{
- int c;
- int digit_optind = 0;
-
- while (1)
- {
- int this_option_optind = optind ? optind : 1;
-
- c = getopt (argc, argv, "abc:d:0123456789");
- if (c == -1)
- break;
-
- switch (c)
- {
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- if (digit_optind != 0 && digit_optind != this_option_optind)
- printf ("digits occur in two different argv-elements.\n");
- digit_optind = this_option_optind;
- printf ("option %c\n", c);
- break;
-
- case 'a':
- printf ("option a\n");
- break;
-
- case 'b':
- printf ("option b\n");
- break;
-
- case 'c':
- printf ("option c with value `%s'\n", optarg);
- break;
-
- case '?':
- break;
-
- default:
- printf ("?? getopt returned character code 0%o ??\n", c);
+ int c;
+ int digit_optind = 0;
+
+ while (1) {
+ int this_option_optind = optind ? optind : 1;
+
+ c = getopt(argc, argv, "abc:d:0123456789");
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0
+ && digit_optind != this_option_optind)
+ printf
+ ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf("option %c\n", c);
+ break;
+
+ case 'a':
+ printf("option a\n");
+ break;
+
+ case 'b':
+ printf("option b\n");
+ break;
+
+ case 'c':
+ printf("option c with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf("?? getopt returned character code 0%o ??\n", c);
+ }
}
- }
- if (optind < argc)
- {
- printf ("non-option ARGV-elements: ");
- while (optind < argc)
- printf ("%s ", argv[optind++]);
- printf ("\n");
- }
+ if (optind < argc) {
+ printf("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf("%s ", argv[optind++]);
+ printf("\n");
+ }
- exit (0);
+ exit(0);
}
#endif /* TEST */