diff options
Diffstat (limited to 'posix/getopt.c')
| -rw-r--r-- | posix/getopt.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/posix/getopt.c b/posix/getopt.c index 01adee0fe5..a5fb9921a7 100644 --- a/posix/getopt.c +++ b/posix/getopt.c @@ -52,7 +52,15 @@ 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 @@ -124,8 +132,14 @@ char *optarg = NULL; 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. @@ -431,10 +445,11 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only) { optarg = NULL; - if (optind == 0) + if (!__getopt_initialized) { optstring = _getopt_initialize (optstring); optind = 1; /* Don't scan ARGV[0], the program name. */ + __getopt_initialized = 1; } /* Test whether ARGV[optind] points to a non-option argument. @@ -500,6 +515,11 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only) that we previously skipped, so the caller will digest them. */ if (first_nonopt != last_nonopt) optind = first_nonopt; + + /* Before we can be provide the next result we must be + reinitialized. */ + __getopt_initialized = 0; + return EOF; } @@ -509,7 +529,12 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only) if (NONOPTION_P) { if (ordering == REQUIRE_ORDER) - return EOF; + { + /* Before we can be provide the next result we must be + reinitialized. */ + __getopt_initialized = 0; + return EOF; + } optarg = argv[optind++]; return 1; } @@ -880,7 +905,7 @@ getopt (argc, argv, optstring) 0); } -#endif /* _LIBC or not __GNU_LIBRARY__. */ +#endif /* Not ELIDE_CODE. */ #ifdef TEST |