diff options
Diffstat (limited to 'posix/getopt.c')
| -rw-r--r-- | posix/getopt.c | 45 |
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') { |