1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1990 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 /* created from scratch */ 29 30 /* 31 * getsubopt - parse suboptions from a flag argument. 32 */ 33 #include <string.h> 34 #include <stdio.h> 35 36 int 37 getsubopt(optionsp, tokens, valuep) 38 char **optionsp; 39 char *tokens[]; 40 char **valuep; 41 { 42 register char *s = *optionsp, *p; 43 register int i, optlen; 44 45 *valuep = NULL; 46 if (*s == '\0') 47 return (-1); 48 p = strchr(s, ','); /* find next option */ 49 if (p == NULL) { 50 p = s + strlen(s); 51 } else { 52 *p++ = '\0'; /* mark end and point to next */ 53 } 54 *optionsp = p; /* point to next option */ 55 p = strchr(s, '='); /* find value */ 56 if (p == NULL) { 57 optlen = strlen(s); 58 *valuep = NULL; 59 } else { 60 optlen = p - s; 61 *valuep = ++p; 62 } 63 for (i = 0; tokens[i] != NULL; i++) { 64 if ((optlen == strlen(tokens[i])) && 65 (strncmp(s, tokens[i], optlen) == 0)) 66 return (i); 67 } 68 /* no match, point value at option and return error */ 69 *valuep = s; 70 return (-1); 71 } 72 73