1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984 AT&T */ 23*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 24*7c478bd9Sstevel@tonic-gate 25*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/ 28*7c478bd9Sstevel@tonic-gate /* 29*7c478bd9Sstevel@tonic-gate * uses strpbrk and strspn to break string into tokens on 30*7c478bd9Sstevel@tonic-gate * sequentially subsequent calls. returns NULL when no 31*7c478bd9Sstevel@tonic-gate * non-separator characters remain. 32*7c478bd9Sstevel@tonic-gate * `subsequent' calls are calls with first argument NULL. 33*7c478bd9Sstevel@tonic-gate */ 34*7c478bd9Sstevel@tonic-gate 35*7c478bd9Sstevel@tonic-gate #define NULL (char*)0 36*7c478bd9Sstevel@tonic-gate 37*7c478bd9Sstevel@tonic-gate extern int strspn(); 38*7c478bd9Sstevel@tonic-gate extern char *strpbrk(); 39*7c478bd9Sstevel@tonic-gate 40*7c478bd9Sstevel@tonic-gate char * 41*7c478bd9Sstevel@tonic-gate strtok(string, sepset) 42*7c478bd9Sstevel@tonic-gate char *string, *sepset; 43*7c478bd9Sstevel@tonic-gate { 44*7c478bd9Sstevel@tonic-gate register char *p, *q, *r; 45*7c478bd9Sstevel@tonic-gate static char *savept; 46*7c478bd9Sstevel@tonic-gate 47*7c478bd9Sstevel@tonic-gate /*first or subsequent call*/ 48*7c478bd9Sstevel@tonic-gate p = (string == NULL)? savept: string; 49*7c478bd9Sstevel@tonic-gate 50*7c478bd9Sstevel@tonic-gate if(p == 0) /* return if no tokens remaining */ 51*7c478bd9Sstevel@tonic-gate return(NULL); 52*7c478bd9Sstevel@tonic-gate 53*7c478bd9Sstevel@tonic-gate q = p + strspn(p, sepset); /* skip leading separators */ 54*7c478bd9Sstevel@tonic-gate 55*7c478bd9Sstevel@tonic-gate if(*q == '\0') /* return if no tokens remaining */ 56*7c478bd9Sstevel@tonic-gate return(NULL); 57*7c478bd9Sstevel@tonic-gate 58*7c478bd9Sstevel@tonic-gate if((r = strpbrk(q, sepset)) == NULL) /* move past token */ 59*7c478bd9Sstevel@tonic-gate savept = 0; /* indicate this is last token */ 60*7c478bd9Sstevel@tonic-gate else { 61*7c478bd9Sstevel@tonic-gate *r = '\0'; 62*7c478bd9Sstevel@tonic-gate savept = ++r; 63*7c478bd9Sstevel@tonic-gate } 64*7c478bd9Sstevel@tonic-gate return(q); 65*7c478bd9Sstevel@tonic-gate } 66