Mercurial > irccd
comparison extern/libcompat/src/strsep.c @ 934:243f9f51b0ff
irccd: import libcompat and utilities
author | David Demelier <markand@malikania.fr> |
---|---|
date | Sun, 10 Jan 2021 16:56:32 +0100 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
933:a29cd04e3878 | 934:243f9f51b0ff |
---|---|
1 /* $OpenBSD: strsep.c,v 1.8 2015/08/31 02:53:57 guenther Exp $ */ | |
2 | |
3 /*- | |
4 * Copyright (c) 1990, 1993 | |
5 * The Regents of the University of California. All rights reserved. | |
6 * | |
7 * Redistribution and use in source and binary forms, with or without | |
8 * modification, are permitted provided that the following conditions | |
9 * are met: | |
10 * 1. Redistributions of source code must retain the above copyright | |
11 * notice, this list of conditions and the following disclaimer. | |
12 * 2. Redistributions in binary form must reproduce the above copyright | |
13 * notice, this list of conditions and the following disclaimer in the | |
14 * documentation and/or other materials provided with the distribution. | |
15 * 3. Neither the name of the University nor the names of its contributors | |
16 * may be used to endorse or promote products derived from this software | |
17 * without specific prior written permission. | |
18 * | |
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
29 * SUCH DAMAGE. | |
30 */ | |
31 | |
32 #include <string.h> | |
33 | |
34 /* | |
35 * Get next token from string *stringp, where tokens are possibly-empty | |
36 * strings separated by characters from delim. | |
37 * | |
38 * Writes NULs into the string at *stringp to end tokens. | |
39 * delim need not remain constant from call to call. | |
40 * On return, *stringp points past the last NUL written (if there might | |
41 * be further tokens), or is NULL (if there are definitely no more tokens). | |
42 * | |
43 * If *stringp is NULL, strsep returns NULL. | |
44 */ | |
45 char * | |
46 strsep(char **stringp, const char *delim) | |
47 { | |
48 char *s; | |
49 const char *spanp; | |
50 int c, sc; | |
51 char *tok; | |
52 | |
53 if ((s = *stringp) == NULL) | |
54 return (NULL); | |
55 for (tok = s;;) { | |
56 c = *s++; | |
57 spanp = delim; | |
58 do { | |
59 if ((sc = *spanp++) == c) { | |
60 if (c == 0) | |
61 s = NULL; | |
62 else | |
63 s[-1] = 0; | |
64 *stringp = s; | |
65 return (tok); | |
66 } | |
67 } while (sc != 0); | |
68 } | |
69 /* NOTREACHED */ | |
70 } |