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authorUlrich Drepper <drepper@redhat.com>1997-01-06 22:07:28 +0000
committerUlrich Drepper <drepper@redhat.com>1997-01-06 22:07:28 +0000
commitdf4ef2ab9c0899b2670067cd97e58f7eb2913e00 (patch)
tree4cb343b5ba9ccdc9c0b96144412567b6a4eda0ee /posix/getopt.c
parent6f9e7002f38ae778b3ff2f586a3e5766382228e9 (diff)
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update from main archive 960105cvs/libc-970107cvs/libc-970106
Diffstat (limited to 'posix/getopt.c')
-rw-r--r--posix/getopt.c45
1 files changed, 38 insertions, 7 deletions
diff --git a/posix/getopt.c b/posix/getopt.c
index a5fb9921a7..ac6ebe0cc0 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -3,7 +3,7 @@
"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 file is part of the GNU C Library. Its master source is NOT part of
@@ -249,12 +249,31 @@ extern int strlen (const char *);
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.
@@ -327,10 +346,12 @@ exchange (argv)
/* 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
@@ -360,7 +381,9 @@ _getopt_initialize (optstring)
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
@@ -374,6 +397,9 @@ _getopt_initialize (optstring)
else
nonoption_flags_len = strlen (nonoption_flags);
}
+ else
+ nonoption_flags_len = 0;
+#endif
return optstring;
}
@@ -445,19 +471,24 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
{
optarg = NULL;
- if (!__getopt_initialized)
+ 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')
{