"Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
before changing it!
- Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 1996
+ Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
+ This file is part of the GNU C Library. Its master source is NOT part of
+ the C library, however. The master source lives in /gd/gnu/lib.
- This program is distributed in the hope that it will be useful,
+ The GNU C Library 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 of the
+ License, or (at your option) any later version.
+
+ 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 General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
\f
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
Ditto for AIX 3.2 and <stdlib.h>. */
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
-#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
+#define GETOPT_INTERFACE_VERSION 1
+#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
+#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__
+#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>
-#if defined (_LIBC) || defined (HAVE_UNISTD_H)
#include <unistd.h>
-#endif
#endif /* GNU C library. */
#ifdef VMS
#endif
#endif
-#ifdef WIN32
+#if defined (WIN32) && !defined (__CYGWIN32__)
/* It's not Unix, really. See? Capital letters. */
#include <windows.h>
#define getpid() GetCurrentProcessId()
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;
+
+/* Formerly, initialization of getopt depended on optind==0, which
+ causes problems with re-calling getopt as programs generally don't
+ know that. */
+
+int __getopt_initialized = 0;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
/* Value of POSIXLY_CORRECT environment variable. */
static char *posixly_correct;
\f
-#ifdef __GNU_LIBRARY__
+#ifdef __GNU_LIBRARY__
/* We want to avoid inclusion of string.h with non-GNU libraries
because there are many ways it can cause trouble.
On some systems, it contains special magic macros that don't work
static int first_nonopt;
static int last_nonopt;
+#ifdef _LIBC
/* Bash 2.0 gives us an environment variable containing flags
indicating ARGV elements that should not be considered arguments. */
static const char *nonoption_flags;
static int nonoption_flags_len;
+static int original_argc;
+static char *const *original_argv;
+
+/* Make sure the environment variable bash 2.0 puts in the environment
+ is valid for the getopt call we must make sure that the ARGV passed
+ to getopt is that one passed to the process. */
+static void store_args (int argc, char *const *argv) __attribute__ ((unused));
+static void
+store_args (int argc, char *const *argv)
+{
+ /* XXX This is no good solution. We should rather copy the args so
+ that we can compare them later. But we must not use malloc(3). */
+ original_argc = argc;
+ original_argv = argv;
+}
+text_set_element (__libc_subinit, store_args);
+#endif
+
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,last_nonopt)
which contains all the non-options that have been skipped so far.
/* Initialize the internal data when the first call is made. */
#if defined (__STDC__) && __STDC__
-static const char *_getopt_initialize (const char *);
+static const char *_getopt_initialize (int, char *const *, const char *);
#endif
static const char *
-_getopt_initialize (optstring)
+_getopt_initialize (argc, argv, optstring)
+ int argc;
+ char *const *argv;
const char *optstring;
{
/* Start processing options with ARGV-element 1 (since ARGV-element 0
else
ordering = PERMUTE;
- if (posixly_correct == NULL)
+#ifdef _LIBC
+ if (posixly_correct == NULL
+ && argc == original_argc && argv == original_argv)
{
/* Bash 2.0 puts a special variable in the environment for each
command it runs, specifying which ARGV elements are the results of
else
nonoption_flags_len = strlen (nonoption_flags);
}
+ else
+ nonoption_flags_len = 0;
+#endif
return optstring;
}
{
optarg = NULL;
- if (optind == 0)
+ if (!__getopt_initialized || optind == 0)
{
- optstring = _getopt_initialize (optstring);
+ optstring = _getopt_initialize (argc, argv, optstring);
optind = 1; /* Don't scan ARGV[0], the program name. */
+ __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. */
+ from the shell indicating it is not an option. The later information
+ is only used when the used in the GNU libc. */
+#ifdef _LIBC
#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
|| (optind < nonoption_flags_len \
&& nonoption_flags[optind] == '1'))
+#else
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
+#endif
if (nextchar == NULL || *nextchar == '\0')
{
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
- int indfound;
+ int indfound = -1;
int option_index;
for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
-#ifdef lint /* Suppress `used before initialized' warning. */
- indfound = 0;
-#endif
-
/* 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))
+ if ((unsigned int) (nameend - nextchar)
+ == (unsigned int) strlen (p->name))
{
/* Exact match found. */
pfound = p;
else
{
if (opterr)
- 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);
+ 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);
{
if (opterr)
fprintf (stderr,
- _("%s: option `%s' requires an argument\n"),
- argv[0], argv[optind - 1]);
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[optind - 1]);
nextchar += strlen (nextchar);
optopt = pfound->val;
return optstring[0] == ':' ? ':' : '?';
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 (opterr)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr,
+ gettext ("%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 (opterr)
+ fprintf (stderr, gettext ("%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 (opterr)
+ fprintf (stderr,
+ gettext ("%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 (opterr)
+ fprintf (stderr,
+ gettext ("%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] == ':')
{
/* 1003.2 specifies the format of this message. */
fprintf (stderr,
- _("%s: option requires an argument -- %c\n"),
- argv[0], c);
+ _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
}
optopt = c;
if (optstring[0] == ':')
0);
}
-#endif /* _LIBC or not __GNU_LIBRARY__. */
+#endif /* Not ELIDE_CODE. */
\f
#ifdef TEST
projects / gnulib.git / blobdiff