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authorEric Andersen <andersen@codepoet.org>2002-08-07 12:49:38 +0000
committerEric Andersen <andersen@codepoet.org>2002-08-07 12:49:38 +0000
commit8cea9a34c6c3552ad8be8a7d682fb051f99c6aa4 (patch)
tree17f676456e77188bf5e539b21cacc37ead8de5ed /libc/unistd/getopt.c
parent24fcbf9eefede3114cd6d68e1b62486e0923b325 (diff)
rework getopt. no read need to split this one up since
the parts are so tightly coupled.
Diffstat (limited to 'libc/unistd/getopt.c')
-rw-r--r--libc/unistd/getopt.c1072
1 files changed, 499 insertions, 573 deletions
diff --git a/libc/unistd/getopt.c b/libc/unistd/getopt.c
index 6491e81d1..311118853 100644
--- a/libc/unistd/getopt.c
+++ b/libc/unistd/getopt.c
@@ -1,32 +1,40 @@
/* Getopt for GNU.
NOTE: getopt is now part of the C library, so if you don't know what
- "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
+ "Keep this file name-space clean" means, talk to drepper@gnu.org
before changing it!
-
- Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94
+ Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001
Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License
- as published by the Free Software Foundation; either version 2, or
- (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Library General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public License
- along with this program; if not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
/*
* Modified for uClibc by Manuel Novoa III on 1/5/01.
+ * Modified once again for uClibc by Erik Andersen 8/7/02
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
+#include <libintl.h>
+
+
+/* Treat '-W foo' the same as the long option '--foo',
+ * disabled for the moment since it costs about 2k... */
+#undef SPECIAL_TREATMENT_FOR_W
/* This version of `getopt' appears to the caller like standard Unix `getopt'
but it behaves differently for the user, since it allows the user
@@ -42,16 +50,12 @@
GNU application programs can use a third alternative mode in which
they can distinguish the relative order of options and other arguments. */
-#include <getopt.h>
+#include "getopt.h"
-extern int _getopt_internal (int argc, char *const *argv,
- const char *optstring,
- const struct option *longopts,
- int *longind, int long_only);
+extern int _getopt_internal (int argc, char *const *argv, const char *optstring,
+ const struct option *longopts, int *longind, int long_only);
-#ifdef L__gnu_getopt_internal
-
/* For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument,
the argument value is returned here.
@@ -66,15 +70,14 @@ char *optarg = NULL;
On entry to `getopt', zero means this is the first call; initialize.
- When `getopt' returns EOF, this is the index of the first of the
+ When `getopt' returns -1, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
how much of ARGV has been scanned so far. */
-/* XXX 1003.2 says this must be 1 before any call. */
-int optind = 0;
-
+/* 1003.2 says this must be 1 before any call. */
+int optind = 1;
/* Callers store zero here to inhibit the error message
for unrecognized options. */
@@ -96,6 +99,12 @@ int optopt = '?';
static char *nextchar;
+/* Formerly, initialization of getopt depended on optind==0, which
+ causes problems with re-calling getopt as programs generally don't
+ know that. */
+
+static int __getopt_initialized;
+
/* Describe how to deal with options that follow non-option ARGV-elements.
If the caller did not specify anything,
@@ -123,16 +132,16 @@ static char *nextchar;
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
- `--' can cause `getopt' to return EOF with `optind' != ARGC. */
+ `--' can cause `getopt' to return -1 with `optind' != ARGC. */
static enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
-#include <string.h>
-#define my_index strchr
-
+# include <string.h>
+# define my_index strchr
+
/* Handle permutation of arguments. */
/* Describe the part of ARGV that contains non-options that have
@@ -151,96 +160,92 @@ static int last_nonopt;
`first_nonopt' and `last_nonopt' are relocated so that they describe
the new indices of the non-options in ARGV after they are moved. */
-static void
-exchange (argv)
- char **argv;
+static void exchange (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. */
- while (top > middle && middle > bottom)
+ while (top > middle && middle > bottom)
{
- if (top - middle > middle - bottom)
+ if (top - middle > middle - bottom)
{
- /* Bottom segment is the short one. */
- int len = middle - bottom;
- register int i;
+ /* 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++)
+ /* 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;
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[top - (middle - bottom) + i];
+ argv[top - (middle - bottom) + i] = tem;
}
- /* Exclude the moved bottom segment from further swapping. */
- top -= len;
+ /* Exclude the moved bottom segment from further swapping. */
+ top -= len;
}
- else
+ else
{
- /* Top segment is the short one. */
- int len = top - middle;
- register int i;
+ /* 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++)
+ /* 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;
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[middle + i];
+ argv[middle + i] = tem;
}
- /* Exclude the moved top segment from further swapping. */
- bottom += len;
+ /* 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. */
-static const char *
-_getopt_initialize (optstring)
- const char *optstring;
+static const char *_getopt_initialize (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 = 1;
+ first_nonopt = last_nonopt = optind;
- nextchar = NULL;
+ nextchar = NULL;
- /* Determine how to handle the ordering of options and nonoptions. */
+ /* Determine how to handle the ordering of options and nonoptions. */
- if (optstring[0] == '-')
+ if (optstring[0] == '-')
{
- ordering = RETURN_IN_ORDER;
- ++optstring;
+ ordering = RETURN_IN_ORDER;
+ ++optstring;
}
- else if (optstring[0] == '+')
+ else if (optstring[0] == '+')
{
- ordering = REQUIRE_ORDER;
- ++optstring;
+ ordering = REQUIRE_ORDER;
+ ++optstring;
}
- else if (getenv ("POSIXLY_CORRECT") != NULL)
- ordering = REQUIRE_ORDER;
- else
- ordering = PERMUTE;
+ else if (getenv ("POSIXLY_CORRECT") != NULL)
+ ordering = REQUIRE_ORDER;
+ else
+ ordering = PERMUTE;
- return optstring;
+ return optstring;
}
-
+
/* Scan elements of ARGV (whose length is ARGC) for option characters
given in OPTSTRING.
@@ -254,7 +259,7 @@ _getopt_initialize (optstring)
updating `optind' and `nextchar' so that the next call to `getopt' can
resume the scan with the following option character or ARGV-element.
- If there are no more option characters, `getopt' returns `EOF'.
+ If there are no more option characters, `getopt' returns -1.
Then `optind' is the index in ARGV of the first ARGV-element
that is not an option. (The ARGV-elements have been permuted
so that those that are not options now come last.)
@@ -297,578 +302,499 @@ _getopt_initialize (optstring)
If LONG_ONLY is nonzero, '-' as well as '--' can introduce
long-named options. */
-#if NLS
-#include "nl_types.h"
-#endif
-
-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 (int argc, char *const *argv, const char *optstring,
+ const struct option *longopts, int *longind, int long_only)
{
- optarg = NULL;
+ int print_errors = opterr;
+ if (optstring[0] == ':')
+ print_errors = 0;
-#if NLS
- libc_nls_init();
-#endif
+ if (argc < 1)
+ return -1;
- if (optind == 0)
- optstring = _getopt_initialize (optstring);
+ optarg = NULL;
- if (nextchar == NULL || *nextchar == '\0')
+ if (optind == 0 || !__getopt_initialized)
{
- /* Advance to the next ARGV-element. */
+ if (optind == 0)
+ optind = 1; /* Don't scan ARGV[0], the program name. */
+ optstring = _getopt_initialize (argc, argv, optstring);
+ __getopt_initialized = 1;
+ }
- if (ordering == PERMUTE)
- {
- /* If we have just processed some options following some non-options,
- exchange them so that the options come first. */
+ /* 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. */
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (last_nonopt != optind)
+ 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;
- /* Skip any additional non-options
- and extend the range of non-options previously skipped. */
+ if (ordering == PERMUTE)
+ {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
- while (optind < argc
- && (argv[optind][0] != '-' || argv[optind][1] == '\0'))
- optind++;
- last_nonopt = optind;
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (last_nonopt != optind)
+ first_nonopt = optind;
+
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
+
+ while (optind < argc && NONOPTION_P)
+ optind++;
+ last_nonopt = 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. */
+ /* 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 (optind != argc && !strcmp (argv[optind], "--"))
+ if (optind != argc && !strcmp (argv[optind], "--"))
{
- optind++;
+ optind++;
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (first_nonopt == last_nonopt)
- first_nonopt = optind;
- last_nonopt = argc;
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (first_nonopt == last_nonopt)
+ first_nonopt = optind;
+ last_nonopt = argc;
- optind = argc;
+ optind = argc;
}
- /* 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 done all the ARGV-elements, stop the scan
+ and back over any non-options that we skipped and permuted. */
- if (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 EOF;
+ /* 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 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 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 ((argv[optind][0] != '-' || argv[optind][1] == '\0'))
+ if (NONOPTION_P)
{
- if (ordering == REQUIRE_ORDER)
- return EOF;
- optarg = argv[optind++];
- return 1;
+ if (ordering == REQUIRE_ORDER)
+ return -1;
+ optarg = argv[optind++];
+ return 1;
}
- /* We have found another option-ARGV-element.
- Skip the initial punctuation. */
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
- nextchar = (argv[optind] + 1
- + (longopts != NULL && argv[optind][1] == '-'));
+ nextchar = (argv[optind] + 1
+ + (longopts != NULL && argv[optind][1] == '-'));
}
- /* Decode the current option-ARGV-element. */
+ /* Decode the current option-ARGV-element. */
- /* Check whether the ARGV-element is a long option.
+ /* 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.
+ 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".
+ 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. */
+ 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])))))
+ 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 = 0;
- 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 (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;
- }
+ 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 (ambig && !exact)
{
- if (opterr)
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptAmbiguous,
- "%s: option `%s' is ambiguous\n"),
- argv[0], argv[optind]);
-#else
- fprintf (stderr, "%s: option `%s' is ambiguous\n",
- argv[0], argv[optind]);
-#endif
- nextchar += strlen (nextchar);
- optind++;
- return '?';
+ if (print_errors)
+ {
+ fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ }
+ nextchar += strlen (nextchar);
+ optind++;
+ optopt = 0;
+ return '?';
}
- if (pfound != NULL)
+ if (pfound != NULL)
{
- option_index = indfound;
- optind++;
- if (*nameend)
+ 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
+ /* 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 (opterr)
+ if (print_errors)
{
- if (argv[optind - 1][1] == '-')
- /* --option */
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptNoArgumentsAllowed1,
- "%s: option `--%s' doesn't allow an argument\n"),
- argv[0], pfound->name);
-#else
- fprintf (stderr,
- "%s: option `--%s' doesn't allow an argument\n",
- argv[0], pfound->name);
-#endif
- else
- /* +option or -option */
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptNoArgumentsAllowed2,
- "%s: option `%c%s' doesn't allow an argument\n"),
- argv[0], argv[optind - 1][0], pfound->name);
-#else
- fprintf (stderr,
- "%s: option `%c%s' doesn't allow an argument\n",
- argv[0], argv[optind - 1][0], pfound->name);
-#endif
+
+ 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);
- return '?';
+
+ nextchar += strlen (nextchar);
+
+ optopt = pfound->val;
+ return '?';
}
}
- else if (pfound->has_arg == 1)
+ else if (pfound->has_arg == 1)
{
- if (optind < argc)
- optarg = argv[optind++];
- else
+ if (optind < argc)
+ optarg = argv[optind++];
+ else
{
- if (opterr)
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptRequiresArgument1,
- "%s: option `%s' requires an argument\n"),
- argv[0], argv[optind - 1]);
-#else
- fprintf (stderr, "%s: option `%s' requires an argument\n",
- argv[0], argv[optind - 1]);
-#endif
- nextchar += strlen (nextchar);
- return optstring[0] == ':' ? ':' : '?';
+ 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)
+ nextchar += strlen (nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
{
- *(pfound->flag) = pfound->val;
- return 0;
+ *(pfound->flag) = pfound->val;
+ return 0;
}
- return pfound->val;
+ 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)
+ /* 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 (opterr)
+ if (print_errors)
{
- if (argv[optind][1] == '-')
- /* --option */
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptUnrecognized1,
- "%s: unrecognized option `--%s'\n"),
- argv[0], nextchar);
-#else
- fprintf (stderr, "%s: unrecognized option `--%s'\n",
- argv[0], nextchar);
-#endif
- else
- /* +option or -option */
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptUnrecognized2,
- "%s: unrecognized option `%c%s'\n"),
- argv[0], argv[optind][0], nextchar);
-#else
- fprintf (stderr, "%s: unrecognized option `%c%s'\n",
- argv[0], argv[optind][0], nextchar);
-#endif
+
+ 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++;
- return '?';
+ 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 (opterr)
- {
- /* 1003.2 specifies the format of this message. */
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet, GetoptIllegal,
- "%s: illegal option -- %c\n"),
- argv[0], c);
-#else
- fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
-#endif
- }
- optopt = c;
- return '?';
- }
- 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
- {
+ /* 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)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
+ }
+ optopt = c;
+ return '?';
+ }
+#ifdef SPECIAL_TREATMENT_FOR_W
+ /* 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 (opterr)
- {
+ {
+ if (print_errors)
+ {
/* 1003.2 specifies the format of this message. */
-#if NLS
- fprintf (stderr,
- catgets(_libc_cat, GetoptSet,
- GetoptRequiresArgument2,
- "%s: option requires an argument -- %c\n"),
- argv[0], c);
-#else
- fprintf (stderr, "%s: option requires an argument -- %c\n",
- argv[0], c);
-#endif
- }
+ fprintf (stderr, _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
optopt = c;
if (optstring[0] == ':')
- c = ':';
+ c = ':';
else
- c = '?';
- }
+ c = '?';
+ return c;
+ }
else
- /* We already incremented `optind' once;
- increment it again when taking next ARGV-elt as argument. */
- optarg = argv[optind++];
+ /* 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 c;
- }
+ return 'W'; /* Let the application handle it. */
+ }
+#endif
+ 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 (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 /* L__gnu_getopt_internal */
-
-#ifdef L_gnu_getopt_long
-
-int
-getopt_long (argc, argv, options, long_options, opt_index)
- int argc;
- char *const *argv;
- const char *options;
- const struct option *long_options;
- int *opt_index;
+int getopt_long (int argc, char *const *argv, const char *options,
+ const struct option *long_options, int *opt_index)
{
- return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
+ return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
}
-#endif /* L_gnu_getopt_long */
-
-#ifdef L_gnu_getopt_long_only
-
/* Like getopt_long, but '-' as well as '--' can indicate a long option.
If an option that starts with '-' (not '--') doesn't match a long option,
but does match a short option, it is parsed as a short option
instead. */
-int
-getopt_long_only (argc, argv, options, long_options, opt_index)
- int argc;
- char *const *argv;
- const char *options;
- const struct option *long_options;
- int *opt_index;
+int getopt_long_only (int argc, char *const *argv, const char *options,
+ const struct option *long_options, int *opt_index)
{
- return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
-}
-
-#endif /* L_gnu_getopt_long_only */
-
-#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 c;
- int digit_optind = 0;
-
- while (1)
- {
- int this_option_optind = optind ? optind : 1;
-
- c = getopt (argc, argv, "abc:d:0123456789");
- if (c == EOF)
- 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");
- }
- exit (0);
-}
-
-#endif /* TEST */
-
- /* getopt_long testing */
-#ifdef TEST_LONG
-
-/* Compile with -DTEST_LONG to make an executable for use in testing
- the above definition of `getopt'. */
-
-int
-main (argc, argv)
- int argc;
- char **argv;
-{
- int c;
- int digit_optind = 0;
-
- while (1)
- {
- int this_option_optind = optind ? optind : 1;
- int option_index = 0;
- static struct option long_options[] =
- {
- {"add", 1, 0, 0},
- {"append", 0, 0, 0},
- {"delete", 1, 0, 0},
- {"verbose", 0, 0, 0},
- {"create", 0, 0, 0},
- {"file", 1, 0, 0},
- {0, 0, 0, 0}
- };
-
- c = getopt_long (argc, argv, "abc:d:0123456789",
- long_options, &option_index);
- if (c == EOF)
- break;
-
- switch (c)
- {
- case 0:
- printf ("option %s", long_options[option_index].name);
- if (optarg)
- printf (" with arg %s", optarg);
- printf ("\n");
- break;
-
- 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 'd':
- printf ("option d 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");
- }
-
- exit (0);
+ return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
}
-#endif /* TEST_LONG */