/* 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, 95, 96, 97
- Free Software Foundation, Inc.
-
- 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.
+ 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.
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.
+ 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.
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.
+ Lesser General Public License for more details.
- 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. */
+ 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. */
\f
/* 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__
+#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>
it is simpler to just do this in the source for each such file. */
#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
+#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
#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>
+# include <stdlib.h>
+# include <unistd.h>
#endif /* GNU C library. */
#ifdef VMS
-#include <unixlib.h>
-#if HAVE_STRING_H - 0
-#include <string.h>
-#endif
-#endif
-
-#if defined (WIN32) && !defined (__CYGWIN32__)
-/* It's not Unix, really. See? Capital letters. */
-#include <windows.h>
-#define getpid() GetCurrentProcessId()
+# include <unixlib.h>
+# if HAVE_STRING_H - 0
+# include <string.h>
+# endif
#endif
#ifndef _
-/* This is for other GNU distributions with internationalized messages.
- When compiling libc, the _ macro is predefined. */
-#ifdef HAVE_LIBINTL_H
-# include <libintl.h>
-# define _(msgid) gettext (msgid)
-#else
-# define _(msgid) (msgid)
-#endif
+/* 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
#endif
/* This version of `getopt' appears to the caller like standard Unix `getopt'
Also, when `ordering' is RETURN_IN_ORDER,
each non-option ARGV-element is returned here. */
-char *optarg = NULL;
+char *optarg;
/* Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller
causes problems with re-calling getopt as programs generally don't
know that. */
-int __getopt_initialized = 0;
+int __getopt_initialized;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
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
+
/* Avoid depending on library functions or files
whose names are inconsistent. */
-char *getenv ();
+#ifndef getenv
+extern char *getenv ();
+#endif
static char *
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__
+# 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__ */
+# endif /* not __STDC__ */
#endif /* __GNUC__ */
#endif /* not __GNU_LIBRARY__ */
/* Bash 2.0 gives us an environment variable containing flags
indicating ARGV elements that should not be considered arguments. */
-static const char *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
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)
+__attribute__ ((unused))
+store_args_and_env (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
+# ifdef text_set_element
+text_set_element (__libc_subinit, store_args_and_env);
+# endif /* text_set_element */
+
+# 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 */
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,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. */
-#if defined (__STDC__) && __STDC__
+#if defined __STDC__ && __STDC__
static void exchange (char **);
#endif
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;
+ }
+ }
+#endif
+
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
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;
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;
/* Initialize the internal data when the first call is made. */
-#if defined (__STDC__) && __STDC__
+#if defined __STDC__ && __STDC__
static const char *_getopt_initialize (int, char *const *, const char *);
#endif
static const char *
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;
else
ordering = PERMUTE;
-#ifdef _LIBC
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
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
- file name wildcard expansion and therefore should not be
- considered as options. */
- char var[100];
- sprintf (var, "_%d_GNU_nonoption_argv_flags_", getpid ());
- nonoption_flags = getenv (var);
- if (nonoption_flags == NULL)
- nonoption_flags_len = 0;
- else
- nonoption_flags_len = strlen (nonoption_flags);
+ 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;
int *longind;
int long_only;
{
+ int print_errors = opterr;
+ if (optstring[0] == ':')
+ print_errors = 0;
+
+ if (argc < 1)
+ return -1;
+
optarg = NULL;
- if (!__getopt_initialized || optind == 0)
+ if (optind == 0 || !__getopt_initialized)
{
+ if (optind == 0)
+ optind = 1; /* Don't scan ARGV[0], the program name. */
optstring = _getopt_initialize (argc, argv, optstring);
- optind = 1; /* Don't scan ARGV[0], the program name. */
__getopt_initialized = 1;
}
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. */
-#ifdef _LIBC
-#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
- || (optind < nonoption_flags_len \
- && nonoption_flags[optind] == '1'))
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+# 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')
pfound = p;
indfound = option_index;
}
- else
+ 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 (opterr)
+ if (print_errors)
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]);
nextchar += strlen (nextchar);
optarg = nameend + 1;
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 (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);
optarg = argv[optind++];
else
{
- if (opterr)
+ if (print_errors)
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
if (!long_only || argv[optind][1] == '-'
|| my_index (optstring, *nextchar) == NULL)
{
- if (opterr)
+ if (print_errors)
{
if (argv[optind][1] == '-')
/* --option */
if (temp == NULL || c == ':')
{
- if (opterr)
+ if (print_errors)
{
if (posixly_correct)
/* 1003.2 specifies the format of this message. */
}
else if (optind == argc)
{
- if (opterr)
+ if (print_errors)
{
/* 1003.2 specifies the format of this message. */
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
}
if (ambig && !exact)
{
- if (opterr)
+ if (print_errors)
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]);
nextchar += strlen (nextchar);
optarg = nameend + 1;
else
{
- if (opterr)
+ if (print_errors)
fprintf (stderr, _("\
%s: option `-W %s' doesn't allow an argument\n"),
argv[0], pfound->name);
optarg = argv[optind++];
else
{
- if (opterr)
+ if (print_errors)
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
}
else if (optind == argc)
{
- if (opterr)
+ if (print_errors)
{
/* 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] == ':')
projects / gnulib.git / blobdiff