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 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* Copyright (c) 1988 AT&T */ 30 /* All Rights Reserved */ 31 32 33 #include "synonyms.h" 34 #include <string.h> 35 #include <sys/types.h> 36 37 /* 38 * Return the number of characters in the maximum leading segment 39 * of string which consists solely of characters from charset. 40 */ 41 size_t 42 strspn(const char *string, const char *charset) 43 { 44 const char *p, *q; 45 46 for (q = string; *q != '\0'; ++q) { 47 for (p = charset; *p != '\0' && *p != *q; ++p) 48 ; 49 if (*p == '\0') 50 break; 51 } 52 return (q - string); 53 } 54