10Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint)
20Sstevel@tonic-gate static const char sccsid[] = "strsep.c 8.1 (Berkeley) 6/4/93";
3*11038SRao.Shoaib@Sun.COM static const char rcsid[] = "$Id: strsep.c,v 1.2 2005/04/27 04:56:12 sra Exp $";
40Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */
50Sstevel@tonic-gate
60Sstevel@tonic-gate /*
70Sstevel@tonic-gate * Copyright (c) 1990, 1993
80Sstevel@tonic-gate * The Regents of the University of California. All rights reserved.
90Sstevel@tonic-gate *
100Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
110Sstevel@tonic-gate * modification, are permitted provided that the following conditions
120Sstevel@tonic-gate * are met:
130Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
140Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
150Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
160Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the
170Sstevel@tonic-gate * documentation and/or other materials provided with the distribution.
180Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software
190Sstevel@tonic-gate * must display the following acknowledgement:
200Sstevel@tonic-gate * This product includes software developed by the University of
210Sstevel@tonic-gate * California, Berkeley and its contributors.
220Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors
230Sstevel@tonic-gate * may be used to endorse or promote products derived from this software
240Sstevel@tonic-gate * without specific prior written permission.
250Sstevel@tonic-gate *
260Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
270Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
280Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
290Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
300Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
310Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
320Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
330Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
340Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
350Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
360Sstevel@tonic-gate * SUCH DAMAGE.
370Sstevel@tonic-gate */
380Sstevel@tonic-gate
390Sstevel@tonic-gate #include "port_before.h"
400Sstevel@tonic-gate #include <sys/cdefs.h>
410Sstevel@tonic-gate #include <string.h>
420Sstevel@tonic-gate #include <stdio.h>
430Sstevel@tonic-gate #include "port_after.h"
440Sstevel@tonic-gate
450Sstevel@tonic-gate #ifndef NEED_STRSEP
460Sstevel@tonic-gate int __strsep_unneeded__;
470Sstevel@tonic-gate #else
480Sstevel@tonic-gate
49*11038SRao.Shoaib@Sun.COM /*%
500Sstevel@tonic-gate * Get next token from string *stringp, where tokens are possibly-empty
510Sstevel@tonic-gate * strings separated by characters from delim.
520Sstevel@tonic-gate *
530Sstevel@tonic-gate * Writes NULs into the string at *stringp to end tokens.
540Sstevel@tonic-gate * delim need not remain constant from call to call.
550Sstevel@tonic-gate * On return, *stringp points past the last NUL written (if there might
560Sstevel@tonic-gate * be further tokens), or is NULL (if there are definitely no more tokens).
570Sstevel@tonic-gate *
580Sstevel@tonic-gate * If *stringp is NULL, strsep returns NULL.
590Sstevel@tonic-gate */
600Sstevel@tonic-gate char *
strsep(char ** stringp,const char * delim)610Sstevel@tonic-gate strsep(char **stringp, const char *delim) {
620Sstevel@tonic-gate char *s;
630Sstevel@tonic-gate const char *spanp;
640Sstevel@tonic-gate int c, sc;
650Sstevel@tonic-gate char *tok;
660Sstevel@tonic-gate
670Sstevel@tonic-gate if ((s = *stringp) == NULL)
680Sstevel@tonic-gate return (NULL);
690Sstevel@tonic-gate for (tok = s;;) {
700Sstevel@tonic-gate c = *s++;
710Sstevel@tonic-gate spanp = delim;
720Sstevel@tonic-gate do {
730Sstevel@tonic-gate if ((sc = *spanp++) == c) {
740Sstevel@tonic-gate if (c == 0)
750Sstevel@tonic-gate s = NULL;
760Sstevel@tonic-gate else
770Sstevel@tonic-gate s[-1] = 0;
780Sstevel@tonic-gate *stringp = s;
790Sstevel@tonic-gate return (tok);
800Sstevel@tonic-gate }
810Sstevel@tonic-gate } while (sc != 0);
820Sstevel@tonic-gate }
830Sstevel@tonic-gate /* NOTREACHED */
840Sstevel@tonic-gate }
850Sstevel@tonic-gate
860Sstevel@tonic-gate #endif /*NEED_STRSEP*/
87*11038SRao.Shoaib@Sun.COM
88*11038SRao.Shoaib@Sun.COM /*! \file */
89