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Annotation of src/include/getopt.h, Revision 1.2

1.2     ! ray         1: /*     $OpenBSD: getopt.h,v 1.1 2002/12/03 20:24:29 millert Exp $      */
1.1       millert     2: /*     $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $    */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2000 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Dieter Baron and Thomas Klausner.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     21:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     22:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     23:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     24:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     25:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     26:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     27:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     28:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     29:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     30:  * POSSIBILITY OF SUCH DAMAGE.
                     31:  */
                     32:
                     33: #ifndef _GETOPT_H_
                     34: #define _GETOPT_H_
                     35:
                     36: #include <sys/cdefs.h>
                     37:
                     38: /*
                     39:  * GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions
                     40:  */
                     41: #define no_argument        0
                     42: #define required_argument  1
                     43: #define optional_argument  2
                     44:
                     45: struct option {
                     46:        /* name of long option */
                     47:        const char *name;
                     48:        /*
                     49:         * one of no_argument, required_argument, and optional_argument:
                     50:         * whether option takes an argument
                     51:         */
                     52:        int has_arg;
                     53:        /* if not NULL, set *flag to val when option found */
                     54:        int *flag;
                     55:        /* if flag not NULL, value to set *flag to; else return value */
                     56:        int val;
                     57: };
                     58:
                     59: __BEGIN_DECLS
                     60: int     getopt_long(int, char * const *, const char *,
                     61:            const struct option *, int *);
                     62: int     getopt_long_only(int, char * const *, const char *,
                     63:            const struct option *, int *);
                     64: #ifndef _GETOPT_DEFINED_
                     65: #define _GETOPT_DEFINED_
                     66: int     getopt(int, char * const *, const char *);
                     67: int     getsubopt(char **, char * const *, char **);
                     68:
                     69: extern   char *optarg;                  /* getopt(3) external variables */
                     70: extern   int opterr;
                     71: extern   int optind;
                     72: extern   int optopt;
                     73: extern   int optreset;
                     74: extern   char *suboptarg;               /* getsubopt(3) external variable */
                     75: #endif
                     76: __END_DECLS
                     77:
                     78: #endif /* !_GETOPT_H_ */