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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * getsubopt - parse suboptions from a flag argument. 34 */ 35 #pragma weak _getsubopt = getsubopt 36 37 #include "lint.h" 38 #include <sys/types.h> 39 #include <string.h> 40 #include <stdlib.h> 41 #include <stdio.h> 42 43 int 44 getsubopt(char **optionsp, char * const *tokens, char **valuep) 45 { 46 char *s = *optionsp, *p; 47 int i; 48 size_t optlen; 49 50 *valuep = NULL; 51 if (*s == '\0') 52 return (-1); 53 p = strchr(s, ','); /* find next option */ 54 if (p == NULL) { 55 p = s + strlen(s); 56 } else { 57 *p++ = '\0'; /* mark end and point to next */ 58 } 59 *optionsp = p; /* point to next option */ 60 p = strchr(s, '='); /* find value */ 61 if (p == NULL) { 62 optlen = strlen(s); 63 *valuep = NULL; 64 } else { 65 optlen = p - s; 66 *valuep = ++p; 67 } 68 for (i = 0; tokens[i] != NULL; i++) { 69 if ((optlen == strlen(tokens[i])) && 70 (strncmp(s, tokens[i], optlen) == 0)) 71 return (i); 72 } 73 /* no match, point value at option and return error */ 74 *valuep = s; 75 return (-1); 76 } 77