before changing it!
Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
- Free Software Foundation, Inc.
+ 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.
- 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.
+NOTE: The canonical source of this file is maintained with the GNU C Library.
+Bugs can be reported to bug-glibc@prep.ai.mit.edu.
- 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.
+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.
- 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. */
+This program 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.
+
+You should have received a copy of the GNU General Public License
+along with this program; 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>. */
/* Bash 2.0 gives us an environment variable containing flags
indicating ARGV elements that should not be considered arguments. */
-static const char *nonoption_flags;
+/* Defined in getopt_init.c */
+extern char *__getopt_nonoption_flags;
+
+static int nonoption_flags_max_len;
static int nonoption_flags_len;
static int original_argc;
static char *const *original_argv;
+extern pid_t __libc_pid;
+
/* 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
+text_set_element (__libc_subinit, store_args_and_env);
+
+# 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 /* !_LIBC */
+# define SWAP_FLAGS(ch1, ch2)
+#endif /* _LIBC */
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,last_nonopt)
It leaves the longer segment in the right place overall,
but it consists of two parts that need to be swapped next. */
+#ifdef _LIBC
+ /* 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
+ {
+ memcpy (new_str, __getopt_nonoption_flags, nonoption_flags_max_len);
+ memset (&new_str[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;
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;
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
+ {
+ memcpy (__getopt_nonoption_flags, orig_str, len);
+ memset (&__getopt_nonoption_flags[len], '\0',
+ nonoption_flags_max_len - len);
+ }
+ }
+ }
+ nonoption_flags_len = nonoption_flags_max_len;
}
else
nonoption_flags_len = 0;
{
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;
}
#ifdef _LIBC
#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
|| (optind < nonoption_flags_len \
- && nonoption_flags[optind] == '1'))
+ && __getopt_nonoption_flags[optind] == '1'))
#else
#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
#endif
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