2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/* $OpenBSD: strsep.c,v 1.3 1997/08/20 04:28:14 millert Exp $ */
2N/A
2N/A/*
2N/A * Copyright (c) 1990, 1993
2N/A * The Regents of the University of California. All rights reserved.
2N/A *
2N/A * Redistribution and use in source and binary forms, with or without
2N/A * modification, are permitted provided that the following conditions
2N/A * are met:
2N/A * 1. Redistributions of source code must retain the above copyright
2N/A * notice, this list of conditions and the following disclaimer.
2N/A * 2. Redistributions in binary form must reproduce the above copyright
2N/A * notice, this list of conditions and the following disclaimer in the
2N/A * documentation and/or other materials provided with the distribution.
2N/A * 3. All advertising materials mentioning features or use of this software
2N/A * must display the following acknowledgement:
2N/A * This product includes software developed by the University of
2N/A * California, Berkeley and its contributors.
2N/A * 4. Neither the name of the University nor the names of its contributors
2N/A * may be used to endorse or promote products derived from this software
2N/A * without specific prior written permission.
2N/A *
2N/A * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2N/A * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2N/A * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2N/A * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2N/A * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2N/A * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2N/A * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2N/A * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2N/A * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2N/A * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2N/A * SUCH DAMAGE.
2N/A */
2N/A
2N/A#include "lint.h"
2N/A#include <string.h>
2N/A#include <stdio.h>
2N/A
2N/A#if defined(LIBC_SCCS) && !defined(lint)
2N/A#if 0
2N/Astatic char sccsid[] = "@(#)strsep.c 8.1 (Berkeley) 6/4/93";
2N/A#else
2N/Astatic char *rcsid =
2N/A "$OpenBSD: strsep.c,v 1.3 1997/08/20 04:28:14 millert Exp $";
2N/A#endif
2N/A#endif /* LIBC_SCCS and not lint */
2N/A
2N/A/*
2N/A * Get next token from string *stringp, where tokens are possibly-empty
2N/A * strings separated by characters from delim.
2N/A *
2N/A * Writes NULs into the string at *stringp to end tokens.
2N/A * delim need not remain constant from call to call.
2N/A * On return, *stringp points past the last NUL written (if there might
2N/A * be further tokens), or is NULL (if there are definitely no more tokens).
2N/A *
2N/A * If *stringp is NULL, strsep returns NULL.
2N/A */
2N/Achar *
2N/Astrsep(char **stringp, const char *delim)
2N/A{
2N/A register char *s;
2N/A register const char *spanp;
2N/A register int c, sc;
2N/A char *tok;
2N/A
2N/A if ((s = *stringp) == NULL)
2N/A return (NULL);
2N/A for (tok = s; ; ) {
2N/A c = *s++;
2N/A spanp = delim;
2N/A do {
2N/A if ((sc = *spanp++) == c) {
2N/A if (c == 0)
2N/A s = NULL;
2N/A else
2N/A s[-1] = 0;
2N/A *stringp = s;
2N/A return (tok);
2N/A }
2N/A } while (sc != 0);
2N/A }
2N/A /* NOTREACHED */
2N/A}