1241675Suqs#ifdef HAVE_CONFIG_H 2241675Suqs#include "config.h" 3241675Suqs#endif 4241675Suqs 5241675Suqs#ifdef HAVE_GETSUBOPT 6241675Suqs 7241675Suqsint dummy; 8241675Suqs 9241675Suqs#else 10241675Suqs 11241675Suqs/* $OpenBSD: getsubopt.c,v 1.4 2005/08/08 08:05:36 espie Exp $ */ 12241675Suqs 13241675Suqs/*- 14241675Suqs * Copyright (c) 1990, 1993 15241675Suqs * The Regents of the University of California. All rights reserved. 16241675Suqs * 17241675Suqs * Redistribution and use in source and binary forms, with or without 18241675Suqs * modification, are permitted provided that the following conditions 19241675Suqs * are met: 20241675Suqs * 1. Redistributions of source code must retain the above copyright 21241675Suqs * notice, this list of conditions and the following disclaimer. 22241675Suqs * 2. Redistributions in binary form must reproduce the above copyright 23241675Suqs * notice, this list of conditions and the following disclaimer in the 24241675Suqs * documentation and/or other materials provided with the distribution. 25241675Suqs * 3. Neither the name of the University nor the names of its contributors 26241675Suqs * may be used to endorse or promote products derived from this software 27241675Suqs * without specific prior written permission. 28241675Suqs * 29241675Suqs * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30241675Suqs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31241675Suqs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32241675Suqs * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33241675Suqs * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34241675Suqs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35241675Suqs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36241675Suqs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37241675Suqs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38241675Suqs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39241675Suqs * SUCH DAMAGE. 40241675Suqs */ 41241675Suqs 42241675Suqs#include <unistd.h> 43241675Suqs#include <stdlib.h> 44241675Suqs#include <string.h> 45241675Suqs 46241675Suqs/* 47241675Suqs * The SVID interface to getsubopt provides no way of figuring out which 48241675Suqs * part of the suboptions list wasn't matched. This makes error messages 49241675Suqs * tricky... The extern variable suboptarg is a pointer to the token 50241675Suqs * which didn't match. 51241675Suqs */ 52241675Suqschar *suboptarg; 53241675Suqs 54241675Suqsint 55241675Suqsgetsubopt(char **optionp, char * const *tokens, char **valuep) 56241675Suqs{ 57241675Suqs int cnt; 58241675Suqs char *p; 59241675Suqs 60241675Suqs suboptarg = *valuep = NULL; 61241675Suqs 62241675Suqs if (!optionp || !*optionp) 63241675Suqs return(-1); 64241675Suqs 65241675Suqs /* skip leading white-space, commas */ 66241675Suqs for (p = *optionp; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p); 67241675Suqs 68241675Suqs if (!*p) { 69241675Suqs *optionp = p; 70241675Suqs return(-1); 71241675Suqs } 72241675Suqs 73241675Suqs /* save the start of the token, and skip the rest of the token. */ 74241675Suqs for (suboptarg = p; 75241675Suqs *++p && *p != ',' && *p != '=' && *p != ' ' && *p != '\t';); 76241675Suqs 77241675Suqs if (*p) { 78241675Suqs /* 79241675Suqs * If there's an equals sign, set the value pointer, and 80241675Suqs * skip over the value part of the token. Terminate the 81241675Suqs * token. 82241675Suqs */ 83241675Suqs if (*p == '=') { 84241675Suqs *p = '\0'; 85241675Suqs for (*valuep = ++p; 86241675Suqs *p && *p != ',' && *p != ' ' && *p != '\t'; ++p); 87241675Suqs if (*p) 88241675Suqs *p++ = '\0'; 89241675Suqs } else 90241675Suqs *p++ = '\0'; 91241675Suqs /* Skip any whitespace or commas after this token. */ 92241675Suqs for (; *p && (*p == ',' || *p == ' ' || *p == '\t'); ++p); 93241675Suqs } 94241675Suqs 95241675Suqs /* set optionp for next round. */ 96241675Suqs *optionp = p; 97241675Suqs 98241675Suqs for (cnt = 0; *tokens; ++tokens, ++cnt) 99241675Suqs if (!strcmp(suboptarg, *tokens)) 100241675Suqs return(cnt); 101241675Suqs return(-1); 102241675Suqs} 103241675Suqs 104241675Suqs#endif 105