1 #include "config.h" 2 3 #if HAVE_GETSUBOPT 4 5 int dummy; 6 7 #else 8 9 /* $Id: compat_getsubopt.c,v 1.5 2014/08/17 20:53:50 schwarze Exp $ */ 10 /* $OpenBSD: getsubopt.c,v 1.4 2005/08/08 08:05:36 espie Exp $ */ 11 12 /*- 13 * Copyright (c) 1990, 1993 14 * The Regents of the University of California. All rights reserved. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 #include <unistd.h> 42 #include <stdlib.h> 43 #include <string.h> 44 45 int 46 getsubopt(char **optionp, char * const *tokens, char **valuep) 47 { 48 int cnt; 49 char *suboptarg; 50 char *p; 51 52 suboptarg = *valuep = NULL; 53 54 if (!optionp || !*optionp) 55 return(-1); 56 57 /* skip leading white-space, commas */ 58 for (p = *optionp; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p); 59 60 if (!*p) { 61 *optionp = p; 62 return(-1); 63 } 64 65 /* save the start of the token, and skip the rest of the token. */ 66 for (suboptarg = p; 67 *++p && *p != ',' && *p != '=' && *p != ' ' && *p != '\t';); 68 69 if (*p) { 70 /* 71 * If there's an equals sign, set the value pointer, and 72 * skip over the value part of the token. Terminate the 73 * token. 74 */ 75 if (*p == '=') { 76 *p = '\0'; 77 for (*valuep = ++p; 78 *p && *p != ',' && *p != ' ' && *p != '\t'; ++p); 79 if (*p) 80 *p++ = '\0'; 81 } else 82 *p++ = '\0'; 83 /* Skip any whitespace or commas after this token. */ 84 for (; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p); 85 } 86 87 /* set optionp for next round. */ 88 *optionp = p; 89 90 for (cnt = 0; *tokens; ++tokens, ++cnt) 91 if (!strcmp(suboptarg, *tokens)) 92 return(cnt); 93 return(-1); 94 } 95 96 #endif 97