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Diffstat (limited to 'bsd-strsep.c')
-rw-r--r-- | bsd-strsep.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/bsd-strsep.c b/bsd-strsep.c new file mode 100644 index 000000000..c03649cff --- /dev/null +++ b/bsd-strsep.c | |||
@@ -0,0 +1,89 @@ | |||
1 | /* $OpenBSD: strsep.c,v 1.3 1997/08/20 04:28:14 millert 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. All advertising materials mentioning features or use of this software | ||
16 | * must display the following acknowledgement: | ||
17 | * This product includes software developed by the University of | ||
18 | * California, Berkeley and its contributors. | ||
19 | * 4. Neither the name of the University nor the names of its contributors | ||
20 | * may be used to endorse or promote products derived from this software | ||
21 | * without specific prior written permission. | ||
22 | * | ||
23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
33 | * SUCH DAMAGE. | ||
34 | */ | ||
35 | |||
36 | #include "config.h" | ||
37 | |||
38 | #if !defined(HAVE_STRSEP) | ||
39 | |||
40 | #include <string.h> | ||
41 | #include <stdio.h> | ||
42 | |||
43 | #if defined(LIBC_SCCS) && !defined(lint) | ||
44 | #if 0 | ||
45 | static char sccsid[] = "@(#)strsep.c 8.1 (Berkeley) 6/4/93"; | ||
46 | #else | ||
47 | static char *rcsid = "$OpenBSD: strsep.c,v 1.3 1997/08/20 04:28:14 millert Exp $"; | ||
48 | #endif | ||
49 | #endif /* LIBC_SCCS and not lint */ | ||
50 | |||
51 | /* | ||
52 | * Get next token from string *stringp, where tokens are possibly-empty | ||
53 | * strings separated by characters from delim. | ||
54 | * | ||
55 | * Writes NULs into the string at *stringp to end tokens. | ||
56 | * delim need not remain constant from call to call. | ||
57 | * On return, *stringp points past the last NUL written (if there might | ||
58 | * be further tokens), or is NULL (if there are definitely no more tokens). | ||
59 | * | ||
60 | * If *stringp is NULL, strsep returns NULL. | ||
61 | */ | ||
62 | char * | ||
63 | strsep(char **stringp, const char *delim) | ||
64 | { | ||
65 | register char *s; | ||
66 | register const char *spanp; | ||
67 | register int c, sc; | ||
68 | char *tok; | ||
69 | |||
70 | if ((s = *stringp) == NULL) | ||
71 | return (NULL); | ||
72 | for (tok = s;;) { | ||
73 | c = *s++; | ||
74 | spanp = delim; | ||
75 | do { | ||
76 | if ((sc = *spanp++) == c) { | ||
77 | if (c == 0) | ||
78 | s = NULL; | ||
79 | else | ||
80 | s[-1] = 0; | ||
81 | *stringp = s; | ||
82 | return (tok); | ||
83 | } | ||
84 | } while (sc != 0); | ||
85 | } | ||
86 | /* NOTREACHED */ | ||
87 | } | ||
88 | |||
89 | #endif /* !defined(HAVE_STRSEP) */ | ||