diff options
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/getopt.h | 2 | ||||
| -rw-r--r-- | libc/unistd/Makefile.in | 5 | ||||
| -rw-r--r-- | libc/unistd/getopt_long-susv3.c | 58 |
3 files changed, 63 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/bits/getopt.h b/libc/sysdeps/linux/common/bits/getopt.h index 6d1ebcf13..a28d0a40b 100644 --- a/libc/sysdeps/linux/common/bits/getopt.h +++ b/libc/sysdeps/linux/common/bits/getopt.h @@ -157,7 +157,7 @@ extern int getopt (int ___argc, char *const *___argv, const char *__shortopts) extern int getopt (); #endif /* __GNU_LIBRARY__ */ -#ifdef __UCLIBC_HAS_GNU_GETOPT__ +#if defined __UCLIBC_HAS_GNU_GETOPT__ || defined __UCLIBC_HAS_GETOPT_LONG__ #ifndef __need_getopt extern int getopt_long (int ___argc, char *const *___argv, const char *__shortopts, diff --git a/libc/unistd/Makefile.in b/libc/unistd/Makefile.in index 5bd612465..6e85e10c9 100644 --- a/libc/unistd/Makefile.in +++ b/libc/unistd/Makefile.in @@ -19,9 +19,12 @@ CSRC := $(filter-out daemon.c,$(CSRC)) endif ifeq ($(UCLIBC_HAS_GNU_GETOPT),y) -CSRC := $(filter-out getopt-susv3.c,$(CSRC)) +CSRC := $(filter-out getopt-susv3.c getopt_long-susv3.c,$(CSRC)) else CSRC := $(filter-out getopt.c,$(CSRC)) +ifneq ($(UCLIBC_HAS_GETOPT_LONG),y) +CSRC := $(filter-out getopt_long-susv3.c,$(CSRC)) +endif endif ifeq ($(UCLIBC_HAS_GNU_GETSUBOPT),y) diff --git a/libc/unistd/getopt_long-susv3.c b/libc/unistd/getopt_long-susv3.c new file mode 100644 index 000000000..9bae3d845 --- /dev/null +++ b/libc/unistd/getopt_long-susv3.c @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2006 Rich Felker <dalias@aerifal.cx> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <stddef.h> +#include <getopt.h> +#include <stdio.h> + +libc_hidden_proto(getopt) + +static int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly) +{ + if (optind >= argc || !argv[optind] || argv[optind][0] != '-') return -1; + if ((longonly && argv[optind][1]) || + (argv[optind][1] == '-' && argv[optind][2])) + { + int i; + char *opt = argv[optind]+2; + for (i=0; longopts[i].name; i++) { + const char *name = longopts[i].name; + while (*name && *name++ == *opt++); + if (*name && *opt != '=') continue; + if (*opt == '=') { + if (!longopts[i].has_arg) continue; + optarg = opt+1; + } else { + if (longopts[i].has_arg == required_argument) { + if (!(optarg = argv[++optind])) + return ':'; + } else optarg = NULL; + } + optind++; + if (idx) *idx = i; + if (longopts[i].flag) { + *longopts[i].flag = longopts[i].val; + return 0; + } + return longopts[i].val; + } + if (argv[optind][1] == '-') { + optind++; + return '?'; + } + } + return getopt(argc, argv, optstring); +} + +int getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx) +{ + return __getopt_long(argc, argv, optstring, longopts, idx, 0); +} + +int getopt_long_only(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx) +{ + return __getopt_long(argc, argv, optstring, longopts, idx, 1); +} |