diff options
Diffstat (limited to 'libc/unistd/getopt.c')
| -rw-r--r-- | libc/unistd/getopt.c | 1072 |
1 files changed, 499 insertions, 573 deletions
diff --git a/libc/unistd/getopt.c b/libc/unistd/getopt.c index 6491e81d1..311118853 100644 --- a/libc/unistd/getopt.c +++ b/libc/unistd/getopt.c @@ -1,32 +1,40 @@ /* 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 + 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. - This program 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, or - (at your option) any later version. + The GNU C Library is free software; you can redistribute it and/or + 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. - This program is distributed in the hope that it will be useful, + 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. + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. - You should have received a copy of the GNU Library General Public License - along with this program; if not, write to the Free Software - Foundation, 675 Mass Ave, Cambridge, MA 02139, 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. */ /* * Modified for uClibc by Manuel Novoa III on 1/5/01. + * Modified once again for uClibc by Erik Andersen 8/7/02 */ #include <stdio.h> #include <string.h> #include <stdlib.h> +#include <libintl.h> + + +/* Treat '-W foo' the same as the long option '--foo', + * disabled for the moment since it costs about 2k... */ +#undef SPECIAL_TREATMENT_FOR_W /* This version of `getopt' appears to the caller like standard Unix `getopt' but it behaves differently for the user, since it allows the user @@ -42,16 +50,12 @@ GNU application programs can use a third alternative mode in which they can distinguish the relative order of options and other arguments. */ -#include <getopt.h> +#include "getopt.h" -extern int _getopt_internal (int argc, char *const *argv, - const char *optstring, - const struct option *longopts, - int *longind, int long_only); +extern int _getopt_internal (int argc, char *const *argv, const char *optstring, + const struct option *longopts, int *longind, int long_only); -#ifdef L__gnu_getopt_internal - /* For communication from `getopt' to the caller. When `getopt' finds an option that takes an argument, the argument value is returned here. @@ -66,15 +70,14 @@ char *optarg = NULL; On entry to `getopt', zero means this is the first call; initialize. - When `getopt' returns EOF, this is the index of the first of the + When `getopt' returns -1, this is the index of the first of the non-option elements that the caller should itself scan. 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; /* Callers store zero here to inhibit the error message for unrecognized options. */ @@ -96,6 +99,12 @@ int optopt = '?'; static char *nextchar; +/* Formerly, initialization of getopt depended on optind==0, which + causes problems with re-calling getopt as programs generally don't + know that. */ + +static int __getopt_initialized; + /* Describe how to deal with options that follow non-option ARGV-elements. If the caller did not specify anything, @@ -123,16 +132,16 @@ static char *nextchar; The special argument `--' forces an end of option-scanning regardless of the value of `ordering'. In the case of RETURN_IN_ORDER, only - `--' can cause `getopt' to return EOF with `optind' != ARGC. */ + `--' can cause `getopt' to return -1 with `optind' != ARGC. */ static enum { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER } ordering; -#include <string.h> -#define my_index strchr - +# include <string.h> +# define my_index strchr + /* Handle permutation of arguments. */ /* Describe the part of ARGV that contains non-options that have @@ -151,96 +160,92 @@ static int 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. */ -static void -exchange (argv) - char **argv; +static void exchange (char **argv) { - int bottom = first_nonopt; - int middle = last_nonopt; - int top = optind; - char *tem; + int bottom = first_nonopt; + int middle = last_nonopt; + int top = optind; + char *tem; - /* Exchange the shorter segment with the far end of the longer segment. - That puts the shorter segment into the right place. - It leaves the longer segment in the right place overall, - but it consists of two parts that need to be swapped next. */ + /* Exchange the shorter segment with the far end of the longer segment. + That puts the shorter segment into the right place. + It leaves the longer segment in the right place overall, + but it consists of two parts that need to be swapped next. */ - while (top > middle && middle > bottom) + while (top > middle && middle > bottom) { - if (top - middle > middle - bottom) + if (top - middle > middle - bottom) { - /* Bottom segment is the short one. */ - int len = middle - bottom; - register int i; + /* Bottom segment is the short one. */ + int len = middle - bottom; + register int i; - /* Swap it with the top part of the top segment. */ - for (i = 0; i < len; i++) + /* Swap it with the top part of the top segment. */ + for (i = 0; i < len; i++) { - tem = argv[bottom + i]; - argv[bottom + i] = argv[top - (middle - bottom) + i]; - argv[top - (middle - bottom) + i] = tem; + tem = argv[bottom + i]; + argv[bottom + i] = argv[top - (middle - bottom) + i]; + argv[top - (middle - bottom) + i] = tem; } - /* Exclude the moved bottom segment from further swapping. */ - top -= len; + /* Exclude the moved bottom segment from further swapping. */ + top -= len; } - else + else { - /* Top segment is the short one. */ - int len = top - middle; - register int i; + /* Top segment is the short one. */ + int len = top - middle; + register int i; - /* Swap it with the bottom part of the bottom segment. */ - for (i = 0; i < len; i++) + /* Swap it with the bottom part of the bottom segment. */ + for (i = 0; i < len; i++) { - tem = argv[bottom + i]; - argv[bottom + i] = argv[middle + i]; - argv[middle + i] = tem; + tem = argv[bottom + i]; + argv[bottom + i] = argv[middle + i]; + argv[middle + i] = tem; } - /* Exclude the moved top segment from further swapping. */ - bottom += len; + /* Exclude the moved top segment from further swapping. */ + bottom += len; } } - /* Update records for the slots the non-options now occupy. */ + /* Update records for the slots the non-options now occupy. */ - first_nonopt += (optind - last_nonopt); - last_nonopt = optind; + first_nonopt += (optind - last_nonopt); + last_nonopt = optind; } /* Initialize the internal data when the first call is made. */ -static const char * -_getopt_initialize (optstring) - const char *optstring; +static const char *_getopt_initialize (int argc, char *const * argv, const char *optstring) { - /* Start processing options with ARGV-element 1 (since ARGV-element 0 - is the program name); the sequence of previously skipped - non-option ARGV-elements is empty. */ + /* Start processing options with ARGV-element 1 (since ARGV-element 0 + 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; + nextchar = NULL; - /* Determine how to handle the ordering of options and nonoptions. */ + /* Determine how to handle the ordering of options and nonoptions. */ - if (optstring[0] == '-') + if (optstring[0] == '-') { - ordering = RETURN_IN_ORDER; - ++optstring; + ordering = RETURN_IN_ORDER; + ++optstring; } - else if (optstring[0] == '+') + else if (optstring[0] == '+') { - ordering = REQUIRE_ORDER; - ++optstring; + ordering = REQUIRE_ORDER; + ++optstring; } - else if (getenv ("POSIXLY_CORRECT") != NULL) - ordering = REQUIRE_ORDER; - else - ordering = PERMUTE; + else if (getenv ("POSIXLY_CORRECT") != NULL) + ordering = REQUIRE_ORDER; + else + ordering = PERMUTE; - return optstring; + return optstring; } - + /* Scan elements of ARGV (whose length is ARGC) for option characters given in OPTSTRING. @@ -254,7 +259,7 @@ _getopt_initialize (optstring) updating `optind' and `nextchar' so that the next call to `getopt' can resume the scan with the following option character or ARGV-element. - If there are no more option characters, `getopt' returns `EOF'. + If there are no more option characters, `getopt' returns -1. Then `optind' is the index in ARGV of the first ARGV-element that is not an option. (The ARGV-elements have been permuted so that those that are not options now come last.) @@ -297,578 +302,499 @@ _getopt_initialize (optstring) If LONG_ONLY is nonzero, '-' as well as '--' can introduce long-named options. */ -#if NLS -#include "nl_types.h" -#endif - -int -_getopt_internal (argc, argv, optstring, longopts, longind, long_only) - int argc; - char *const *argv; - const char *optstring; - const struct option *longopts; - int *longind; - int long_only; +int _getopt_internal (int argc, char *const *argv, const char *optstring, + const struct option *longopts, int *longind, int long_only) { - optarg = NULL; + int print_errors = opterr; + if (optstring[0] == ':') + print_errors = 0; -#if NLS - libc_nls_init(); -#endif + if (argc < 1) + return -1; - if (optind == 0) - optstring = _getopt_initialize (optstring); + optarg = NULL; - if (nextchar == NULL || *nextchar == '\0') + if (optind == 0 || !__getopt_initialized) { - /* Advance to the next ARGV-element. */ + if (optind == 0) + optind = 1; /* Don't scan ARGV[0], the program name. */ + optstring = _getopt_initialize (argc, argv, optstring); + __getopt_initialized = 1; + } - if (ordering == PERMUTE) - { - /* If we have just processed some options following some non-options, - exchange them so that the options come first. */ + /* 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. The later information + is only used when the used in the GNU libc. */ +#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') - if (first_nonopt != last_nonopt && last_nonopt != optind) - exchange ((char **) argv); - else if (last_nonopt != optind) + if (nextchar == NULL || *nextchar == '\0') + { + /* Advance to the next ARGV-element. */ + + /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been + moved back by the user (who may also have changed the arguments). */ + if (last_nonopt > optind) + last_nonopt = optind; + if (first_nonopt > optind) first_nonopt = optind; - /* Skip any additional non-options - and extend the range of non-options previously skipped. */ + if (ordering == PERMUTE) + { + /* If we have just processed some options following some non-options, + exchange them so that the options come first. */ - while (optind < argc - && (argv[optind][0] != '-' || argv[optind][1] == '\0')) - optind++; - last_nonopt = optind; + if (first_nonopt != last_nonopt && last_nonopt != optind) + exchange ((char **) argv); + else if (last_nonopt != optind) + first_nonopt = optind; + + /* Skip any additional non-options + and extend the range of non-options previously skipped. */ + + while (optind < argc && NONOPTION_P) + optind++; + last_nonopt = optind; } - /* The special ARGV-element `--' means premature end of options. - Skip it like a null option, - then exchange with previous non-options as if it were an option, - then skip everything else like a non-option. */ + /* The special ARGV-element `--' means premature end of options. + Skip it like a null option, + then exchange with previous non-options as if it were an option, + then skip everything else like a non-option. */ - if (optind != argc && !strcmp (argv[optind], "--")) + if (optind != argc && !strcmp (argv[optind], "--")) { - optind++; + optind++; - if (first_nonopt != last_nonopt && last_nonopt != optind) - exchange ((char **) argv); - else if (first_nonopt == last_nonopt) - first_nonopt = optind; - last_nonopt = argc; + if (first_nonopt != last_nonopt && last_nonopt != optind) + exchange ((char **) argv); + else if (first_nonopt == last_nonopt) + first_nonopt = optind; + last_nonopt = argc; - optind = argc; + optind = argc; } - /* If we have done all the ARGV-elements, stop the scan - and back over any non-options that we skipped and permuted. */ + /* If we have done all the ARGV-elements, stop the scan + and back over any non-options that we skipped and permuted. */ - if (optind == argc) + if (optind == argc) { - /* Set the next-arg-index to point at the non-options - that we previously skipped, so the caller will digest them. */ - if (first_nonopt != last_nonopt) - optind = first_nonopt; - return EOF; + /* Set the next-arg-index to point at the non-options + that we previously skipped, so the caller will digest them. */ + if (first_nonopt != last_nonopt) + optind = first_nonopt; + return -1; } - /* If we have come to a non-option and did not permute it, - either stop the scan or describe it to the caller and pass it by. */ + /* If we have come to a non-option and did not permute it, + either stop the scan or describe it to the caller and pass it by. */ - if ((argv[optind][0] != '-' || argv[optind][1] == '\0')) + if (NONOPTION_P) { - if (ordering == REQUIRE_ORDER) - return EOF; - optarg = argv[optind++]; - return 1; + if (ordering == REQUIRE_ORDER) + return -1; + optarg = argv[optind++]; + return 1; } - /* We have found another option-ARGV-element. - Skip the initial punctuation. */ + /* We have found another option-ARGV-element. + Skip the initial punctuation. */ - nextchar = (argv[optind] + 1 - + (longopts != NULL && argv[optind][1] == '-')); + nextchar = (argv[optind] + 1 + + (longopts != NULL && argv[optind][1] == '-')); } - /* Decode the current option-ARGV-element. */ + /* Decode the current option-ARGV-element. */ - /* Check whether the ARGV-element is a long option. + /* Check whether the ARGV-element is a long option. - If long_only and the ARGV-element has the form "-f", where f is - a valid short option, don't consider it an abbreviated form of - a long option that starts with f. Otherwise there would be no - way to give the -f short option. + If long_only and the ARGV-element has the form "-f", where f is + a valid short option, don't consider it an abbreviated form of + a long option that starts with f. Otherwise there would be no + way to give the -f short option. - On the other hand, if there's a long option "fubar" and - the ARGV-element is "-fu", do consider that an abbreviation of - the long option, just like "--fu", and not "-f" with arg "u". + On the other hand, if there's a long option "fubar" and + the ARGV-element is "-fu", do consider that an abbreviation of + the long option, just like "--fu", and not "-f" with arg "u". - This distinction seems to be the most useful approach. */ + This distinction seems to be the most useful approach. */ - if (longopts != NULL - && (argv[optind][1] == '-' - || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) + if (longopts != NULL + && (argv[optind][1] == '-' + || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = 0; - int option_index; - - for (nameend = nextchar; *nameend && *nameend != '='; nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, nextchar, nameend - nextchar)) - { - if (nameend - nextchar == strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else - /* Second or later nonexact match found. */ - ambig = 1; - } + char *nameend; + const struct option *p; + const struct option *pfound = NULL; + int exact = 0; + int ambig = 0; + int indfound = -1; + int option_index; + + for (nameend = nextchar; *nameend && *nameend != '='; nameend++) + /* Do nothing. */ ; + + /* Test all long options for either exact match + or abbreviated matches. */ + for (p = longopts, option_index = 0; p->name; p++, option_index++) + if (!strncmp (p->name, nextchar, nameend - nextchar)) + { + if ((unsigned int) (nameend - nextchar) + == (unsigned int) strlen (p->name)) + { + /* Exact match found. */ + pfound = p; + indfound = option_index; + exact = 1; + break; + } + else if (pfound == NULL) + { + /* First nonexact match found. */ + pfound = p; + indfound = option_index; + } + 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 (ambig && !exact) { - if (opterr) -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptAmbiguous, - "%s: option `%s' is ambiguous\n"), - argv[0], argv[optind]); -#else - fprintf (stderr, "%s: option `%s' is ambiguous\n", - argv[0], argv[optind]); -#endif - nextchar += strlen (nextchar); - optind++; - return '?'; + if (print_errors) + { + fprintf (stderr, _("%s: option `%s' is ambiguous\n"), + argv[0], argv[optind]); + } + nextchar += strlen (nextchar); + optind++; + optopt = 0; + return '?'; } - if (pfound != NULL) + if (pfound != NULL) { - option_index = indfound; - optind++; - if (*nameend) + option_index = indfound; + optind++; + if (*nameend) { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - optarg = nameend + 1; - else + /* Don't test has_arg with >, because some C compilers don't + allow it to be used on enums. */ + if (pfound->has_arg) + optarg = nameend + 1; + else { - if (opterr) + if (print_errors) { - if (argv[optind - 1][1] == '-') - /* --option */ -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptNoArgumentsAllowed1, - "%s: option `--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#else - fprintf (stderr, - "%s: option `--%s' doesn't allow an argument\n", - argv[0], pfound->name); -#endif - else - /* +option or -option */ -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptNoArgumentsAllowed2, - "%s: option `%c%s' doesn't allow an argument\n"), - argv[0], argv[optind - 1][0], pfound->name); -#else - fprintf (stderr, - "%s: option `%c%s' doesn't allow an argument\n", - argv[0], argv[optind - 1][0], pfound->name); -#endif + + 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); - return '?'; + + nextchar += strlen (nextchar); + + optopt = pfound->val; + return '?'; } } - else if (pfound->has_arg == 1) + else if (pfound->has_arg == 1) { - if (optind < argc) - optarg = argv[optind++]; - else + if (optind < argc) + optarg = argv[optind++]; + else { - if (opterr) -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptRequiresArgument1, - "%s: option `%s' requires an argument\n"), - argv[0], argv[optind - 1]); -#else - fprintf (stderr, "%s: option `%s' requires an argument\n", - argv[0], argv[optind - 1]); -#endif - nextchar += strlen (nextchar); - return optstring[0] == ':' ? ':' : '?'; + if (print_errors) + { + fprintf (stderr, + _("%s: option `%s' requires an argument\n"), + argv[0], argv[optind - 1]); + } + nextchar += strlen (nextchar); + optopt = pfound->val; + return optstring[0] == ':' ? ':' : '?'; } } - nextchar += strlen (nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) + nextchar += strlen (nextchar); + if (longind != NULL) + *longind = option_index; + if (pfound->flag) { - *(pfound->flag) = pfound->val; - return 0; + *(pfound->flag) = pfound->val; + return 0; } - return pfound->val; + return pfound->val; } - /* Can't find it as a long option. If this is not getopt_long_only, - or the option starts with '--' or is not a valid short - option, then it's an error. - Otherwise interpret it as a short option. */ - if (!long_only || argv[optind][1] == '-' - || my_index (optstring, *nextchar) == NULL) + /* Can't find it as a long option. If this is not getopt_long_only, + or the option starts with '--' or is not a valid short + option, then it's an error. + Otherwise interpret it as a short option. */ + if (!long_only || argv[optind][1] == '-' + || my_index (optstring, *nextchar) == NULL) { - if (opterr) + if (print_errors) { - if (argv[optind][1] == '-') - /* --option */ -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptUnrecognized1, - "%s: unrecognized option `--%s'\n"), - argv[0], nextchar); -#else - fprintf (stderr, "%s: unrecognized option `--%s'\n", - argv[0], nextchar); -#endif - else - /* +option or -option */ -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptUnrecognized2, - "%s: unrecognized option `%c%s'\n"), - argv[0], argv[optind][0], nextchar); -#else - fprintf (stderr, "%s: unrecognized option `%c%s'\n", - argv[0], argv[optind][0], nextchar); -#endif + + if (argv[optind][1] == '-') + { + /* --option */ + fprintf (stderr, _("%s: unrecognized option `--%s'\n"), + argv[0], nextchar); + } + else + { + /* +option or -option */ + fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), + argv[0], argv[optind][0], nextchar); + } + } - nextchar = (char *) ""; - optind++; - return '?'; + nextchar = (char *) ""; + optind++; + optopt = 0; + return '?'; } } - /* Look at and handle the next short option-character. */ - - { - char c = *nextchar++; - char *temp = my_index (optstring, c); - - /* Increment `optind' when we start to process its last character. */ - if (*nextchar == '\0') - ++optind; - - if (temp == NULL || c == ':') - { - if (opterr) - { - /* 1003.2 specifies the format of this message. */ -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, GetoptIllegal, - "%s: illegal option -- %c\n"), - argv[0], c); -#else - fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c); -#endif - } - optopt = c; - return '?'; - } - if (temp[1] == ':') - { - if (temp[2] == ':') - { - /* This is an option that accepts an argument optionally. */ - if (*nextchar != '\0') - { - optarg = nextchar; - optind++; - } - else - optarg = NULL; - nextchar = NULL; - } - else - { + /* Look at and handle the next short option-character. */ + + { + char c = *nextchar++; + char *temp = my_index (optstring, c); + + /* Increment `optind' when we start to process its last character. */ + if (*nextchar == '\0') + ++optind; + + if (temp == NULL || c == ':') + { + if (print_errors) + { + /* 1003.2 specifies the format of this message. */ + fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c); + } + optopt = c; + return '?'; + } +#ifdef SPECIAL_TREATMENT_FOR_W + /* Convenience. Treat POSIX -W foo same as long option --foo */ + if (temp[0] == 'W' && temp[1] == ';') + { + char *nameend; + const struct option *p; + const struct option *pfound = NULL; + int exact = 0; + int ambig = 0; + int indfound = 0; + int option_index; + /* This is an option that requires an argument. */ if (*nextchar != '\0') - { + { optarg = nextchar; /* If we end this ARGV-element by taking the rest as an arg, we must advance to the next element now. */ optind++; - } + } else if (optind == argc) - { - if (opterr) - { + { + if (print_errors) + { /* 1003.2 specifies the format of this message. */ -#if NLS - fprintf (stderr, - catgets(_libc_cat, GetoptSet, - GetoptRequiresArgument2, - "%s: option requires an argument -- %c\n"), - argv[0], c); -#else - fprintf (stderr, "%s: option requires an argument -- %c\n", - argv[0], c); -#endif - } + fprintf (stderr, _("%s: option requires an argument -- %c\n"), + argv[0], c); + } optopt = c; if (optstring[0] == ':') - c = ':'; + c = ':'; else - c = '?'; - } + c = '?'; + return c; + } else - /* We already incremented `optind' once; - increment it again when taking next ARGV-elt as argument. */ - optarg = argv[optind++]; + /* We already incremented `optind' once; + increment it again when taking next ARGV-elt as argument. */ + optarg = argv[optind++]; + + /* optarg is now the argument, see if it's in the + table of longopts. */ + + for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++) + /* Do nothing. */ ; + + /* Test all long options for either exact match + or abbreviated matches. */ + for (p = longopts, option_index = 0; p->name; p++, option_index++) + if (!strncmp (p->name, nextchar, nameend - nextchar)) + { + if ((unsigned int) (nameend - nextchar) == strlen (p->name)) + { + /* Exact match found. */ + pfound = p; + indfound = option_index; + exact = 1; + break; + } + else if (pfound == NULL) + { + /* First nonexact match found. */ + pfound = p; + indfound = option_index; + } + else + /* Second or later nonexact match found. */ + ambig = 1; + } + if (ambig && !exact) + { + if (print_errors) + { + fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), + argv[0], argv[optind]); + } + nextchar += strlen (nextchar); + optind++; + return '?'; + } + if (pfound != NULL) + { + option_index = indfound; + if (*nameend) + { + /* Don't test has_arg with >, because some C compilers don't + allow it to be used on enums. */ + if (pfound->has_arg) + optarg = nameend + 1; + else + { + if (print_errors) + { + fprintf (stderr, _("\ + %s: option `-W %s' doesn't allow an argument\n"), + argv[0], pfound->name); + } + + nextchar += strlen (nextchar); + return '?'; + } + } + else if (pfound->has_arg == 1) + { + if (optind < argc) + optarg = argv[optind++]; + else + { + if (print_errors) + { + fprintf (stderr, + _("%s: option `%s' requires an argument\n"), + argv[0], argv[optind - 1]); + } + nextchar += strlen (nextchar); + return optstring[0] == ':' ? ':' : '?'; + } + } + nextchar += strlen (nextchar); + if (longind != NULL) + *longind = option_index; + if (pfound->flag) + { + *(pfound->flag) = pfound->val; + return 0; + } + return pfound->val; + } nextchar = NULL; - } - } - return c; - } + return 'W'; /* Let the application handle it. */ + } +#endif + if (temp[1] == ':') + { + if (temp[2] == ':') + { + /* This is an option that accepts an argument optionally. */ + if (*nextchar != '\0') + { + optarg = nextchar; + optind++; + } + else + optarg = NULL; + nextchar = NULL; + } + else + { + /* This is an option that requires an argument. */ + if (*nextchar != '\0') + { + optarg = nextchar; + /* If we end this ARGV-element by taking the rest as an arg, + we must advance to the next element now. */ + optind++; + } + else if (optind == argc) + { + if (print_errors) + { + /* 1003.2 specifies the format of this message. */ + fprintf (stderr, + _("%s: option requires an argument -- %c\n"), + argv[0], c); + } + optopt = c; + if (optstring[0] == ':') + c = ':'; + else + c = '?'; + } + else + /* We already incremented `optind' once; + increment it again when taking next ARGV-elt as argument. */ + optarg = argv[optind++]; + nextchar = NULL; + } + } + return c; + } } -int -getopt (argc, argv, optstring) - int argc; - char *const *argv; - const char *optstring; +int getopt (int argc, char *const *argv, const char *optstring) { - return _getopt_internal (argc, argv, optstring, - (const struct option *) 0, - (int *) 0, - 0); + return _getopt_internal (argc, argv, optstring, + (const struct option *) 0, (int *) 0, 0); } -#endif /* L__gnu_getopt_internal */ - -#ifdef L_gnu_getopt_long - -int -getopt_long (argc, argv, options, long_options, opt_index) - int argc; - char *const *argv; - const char *options; - const struct option *long_options; - int *opt_index; +int getopt_long (int argc, char *const *argv, const char *options, + const struct option *long_options, int *opt_index) { - return _getopt_internal (argc, argv, options, long_options, opt_index, 0); + return _getopt_internal (argc, argv, options, long_options, opt_index, 0); } -#endif /* L_gnu_getopt_long */ - -#ifdef L_gnu_getopt_long_only - /* Like getopt_long, but '-' as well as '--' can indicate a long option. If an option that starts with '-' (not '--') doesn't match a long option, but does match a short option, it is parsed as a short option instead. */ -int -getopt_long_only (argc, argv, options, long_options, opt_index) - int argc; - char *const *argv; - const char *options; - const struct option *long_options; - int *opt_index; +int getopt_long_only (int argc, char *const *argv, const char *options, + const struct option *long_options, int *opt_index) { - return _getopt_internal (argc, argv, options, long_options, opt_index, 1); -} - -#endif /* L_gnu_getopt_long_only */ - -#ifdef TEST - -/* Compile with -DTEST to make an executable for use in testing - the above definition of `getopt'. */ - -int -main (argc, argv) - int argc; - char **argv; -{ - int c; - int digit_optind = 0; - - while (1) - { - int this_option_optind = optind ? optind : 1; - - c = getopt (argc, argv, "abc:d:0123456789"); - if (c == EOF) - break; - - switch (c) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value `%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } - } - - if (optind < argc) - { - printf ("non-option ARGV-elements: "); - while (optind < argc) - printf ("%s ", argv[optind++]); - printf ("\n"); - } - exit (0); -} - -#endif /* TEST */ - - /* getopt_long testing */ -#ifdef TEST_LONG - -/* Compile with -DTEST_LONG to make an executable for use in testing - the above definition of `getopt'. */ - -int -main (argc, argv) - int argc; - char **argv; -{ - int c; - int digit_optind = 0; - - while (1) - { - int this_option_optind = optind ? optind : 1; - int option_index = 0; - static struct option long_options[] = - { - {"add", 1, 0, 0}, - {"append", 0, 0, 0}, - {"delete", 1, 0, 0}, - {"verbose", 0, 0, 0}, - {"create", 0, 0, 0}, - {"file", 1, 0, 0}, - {0, 0, 0, 0} - }; - - c = getopt_long (argc, argv, "abc:d:0123456789", - long_options, &option_index); - if (c == EOF) - break; - - switch (c) - { - case 0: - printf ("option %s", long_options[option_index].name); - if (optarg) - printf (" with arg %s", optarg); - printf ("\n"); - break; - - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value `%s'\n", optarg); - break; - - case 'd': - printf ("option d with value `%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } - } - - if (optind < argc) - { - printf ("non-option ARGV-elements: "); - while (optind < argc) - printf ("%s ", argv[optind++]); - printf ("\n"); - } - - exit (0); + return _getopt_internal (argc, argv, options, long_options, opt_index, 1); } -#endif /* TEST_LONG */ |