1/*-
2 * See the file LICENSE for redistribution information.
3 *
4 * Copyright (c) 1996, 1997
5 *	Sleepycat Software.  All rights reserved.
6 */
7/*
8 * Copyright (c) 1990, 1993
9 *	The Regents of the University of California.  All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *	This product includes software developed by the University of
22 *	California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 */
39
40/*
41 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
42 */
43
44#include "config.h"
45
46#ifndef lint
47static const char sccsid[] = "@(#)strsep.c	10.1 (Sleepycat) 4/12/97";
48#endif /* not lint */
49
50#ifndef NO_SYSTEM_INCLUDES
51#include <string.h>
52#include <stdio.h>
53#endif
54
55/*
56 * Get next token from string *stringp, where tokens are possibly-empty
57 * strings separated by characters from delim.
58 *
59 * Writes NULs into the string at *stringp to end tokens.
60 * delim need not remain constant from call to call.
61 * On return, *stringp points past the last NUL written (if there might
62 * be further tokens), or is NULL (if there are definitely no more tokens).
63 *
64 * If *stringp is NULL, strsep returns NULL.
65 *
66 * PUBLIC: #ifndef HAVE_STRSEP
67 * PUBLIC: char *strsep __P((char **, const char *));
68 * PUBLIC: #endif
69 */
70
71#ifndef HAVE_STRSEP
72
73char *
74strsep(stringp, delim)
75	register char **stringp;
76	register const char *delim;
77{
78	register char *s;
79	register const char *spanp;
80	register int c, sc;
81	char *tok;
82
83	if ((s = *stringp) == NULL)
84		return (NULL);
85	for (tok = s;;) {
86		c = *s++;
87		spanp = delim;
88		do {
89			if ((sc = *spanp++) == c) {
90				if (c == 0)
91					s = NULL;
92				else
93					s[-1] = 0;
94				*stringp = s;
95				return (tok);
96			}
97		} while (sc != 0);
98	}
99	/* NOTREACHED */
100}
101
102#endif	/* HAVE_STRSEP */
103