17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * Copyright (c) 1990, 1993
37c478bd9Sstevel@tonic-gate * The Regents of the University of California. All rights reserved.
47c478bd9Sstevel@tonic-gate *
57c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
67c478bd9Sstevel@tonic-gate * modification, are permitted provided that the following conditions
77c478bd9Sstevel@tonic-gate * are met:
87c478bd9Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
97c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
107c478bd9Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
117c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the
127c478bd9Sstevel@tonic-gate * documentation and/or other materials provided with the distribution.
137c478bd9Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software
147c478bd9Sstevel@tonic-gate * must display the following acknowledgement:
157c478bd9Sstevel@tonic-gate * This product includes software developed by the University of
167c478bd9Sstevel@tonic-gate * California, Berkeley and its contributors.
177c478bd9Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors
187c478bd9Sstevel@tonic-gate * may be used to endorse or promote products derived from this software
197c478bd9Sstevel@tonic-gate * without specific prior written permission.
207c478bd9Sstevel@tonic-gate *
217c478bd9Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
227c478bd9Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
237c478bd9Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
247c478bd9Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
257c478bd9Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
267c478bd9Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
277c478bd9Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
287c478bd9Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
297c478bd9Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
307c478bd9Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
317c478bd9Sstevel@tonic-gate * SUCH DAMAGE.
327c478bd9Sstevel@tonic-gate */
337c478bd9Sstevel@tonic-gate
347c478bd9Sstevel@tonic-gate #include "port_before.h"
357c478bd9Sstevel@tonic-gate #include <sys/cdefs.h>
367c478bd9Sstevel@tonic-gate #include <string.h>
377c478bd9Sstevel@tonic-gate #include <stdio.h>
387c478bd9Sstevel@tonic-gate #include "port_after.h"
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate #ifndef NEED_STRSEP
417c478bd9Sstevel@tonic-gate int __strsep_unneeded__;
427c478bd9Sstevel@tonic-gate #else
437c478bd9Sstevel@tonic-gate
449525b14bSRao Shoaib /*%
457c478bd9Sstevel@tonic-gate * Get next token from string *stringp, where tokens are possibly-empty
46*55fea89dSDan Cross * strings separated by characters from delim.
477c478bd9Sstevel@tonic-gate *
487c478bd9Sstevel@tonic-gate * Writes NULs into the string at *stringp to end tokens.
497c478bd9Sstevel@tonic-gate * delim need not remain constant from call to call.
507c478bd9Sstevel@tonic-gate * On return, *stringp points past the last NUL written (if there might
517c478bd9Sstevel@tonic-gate * be further tokens), or is NULL (if there are definitely no more tokens).
527c478bd9Sstevel@tonic-gate *
537c478bd9Sstevel@tonic-gate * If *stringp is NULL, strsep returns NULL.
547c478bd9Sstevel@tonic-gate */
557c478bd9Sstevel@tonic-gate char *
strsep(char ** stringp,const char * delim)567c478bd9Sstevel@tonic-gate strsep(char **stringp, const char *delim) {
577c478bd9Sstevel@tonic-gate char *s;
587c478bd9Sstevel@tonic-gate const char *spanp;
597c478bd9Sstevel@tonic-gate int c, sc;
607c478bd9Sstevel@tonic-gate char *tok;
617c478bd9Sstevel@tonic-gate
627c478bd9Sstevel@tonic-gate if ((s = *stringp) == NULL)
637c478bd9Sstevel@tonic-gate return (NULL);
647c478bd9Sstevel@tonic-gate for (tok = s;;) {
657c478bd9Sstevel@tonic-gate c = *s++;
667c478bd9Sstevel@tonic-gate spanp = delim;
677c478bd9Sstevel@tonic-gate do {
687c478bd9Sstevel@tonic-gate if ((sc = *spanp++) == c) {
697c478bd9Sstevel@tonic-gate if (c == 0)
707c478bd9Sstevel@tonic-gate s = NULL;
717c478bd9Sstevel@tonic-gate else
727c478bd9Sstevel@tonic-gate s[-1] = 0;
737c478bd9Sstevel@tonic-gate *stringp = s;
747c478bd9Sstevel@tonic-gate return (tok);
757c478bd9Sstevel@tonic-gate }
767c478bd9Sstevel@tonic-gate } while (sc != 0);
777c478bd9Sstevel@tonic-gate }
787c478bd9Sstevel@tonic-gate /* NOTREACHED */
797c478bd9Sstevel@tonic-gate }
807c478bd9Sstevel@tonic-gate
817c478bd9Sstevel@tonic-gate #endif /*NEED_STRSEP*/
829525b14bSRao Shoaib
839525b14bSRao Shoaib /*! \file */
84