1 /*- 2 * Copyright (c) 2000 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Dieter Baron and Thomas Klausner. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /** @file 31 * @brief Interfaces for getopt() and getopt_long() work-alike functions. 32 * 33 * This code was taken from FreeBSD and slightly modified, mostly to rename 34 * symbols with external linkage to avoid naming conflicts in systems where 35 * there are real getopt()/getopt_long() implementations. Changed to use 36 * fixed-width types to allow code using these interfaces to be consistent 37 * with the rest of the product. 38 */ 39 #ifndef REDGETOPT_H 40 #define REDGETOPT_H 41 42 43 #define red_no_argument 0 44 #define red_required_argument 1 45 #define red_optional_argument 2 46 47 48 /** @brief Specifies a long option. 49 */ 50 typedef struct 51 { 52 /* name of long option */ 53 const char * name; 54 55 /* 56 * one of red_no_argument, red_required_argument, and red_optional_argument: 57 * whether option takes an argument 58 */ 59 int32_t has_arg; 60 /* if not NULL, set *flag to val when option found */ 61 int32_t * flag; 62 /* if flag not NULL, value to set *flag to; else return value */ 63 int32_t val; 64 } REDOPTION; 65 66 67 int32_t RedGetopt( int32_t nargc, 68 char * const * nargv, 69 const char * options ); 70 int32_t RedGetoptLong( int32_t nargc, 71 char * const * nargv, 72 const char * options, 73 const REDOPTION * long_options, 74 int32_t * idx ); 75 76 77 extern const char * red_optarg; 78 extern int32_t red_optind; 79 extern int32_t red_opterr; 80 extern int32_t red_optopt; 81 extern int32_t red_optreset; 82 83 84 #endif /* ifndef REDGETOPT_H */ 85