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Diffstat (limited to 'src/lib/libc/string/memccpy.c')
-rw-r--r-- | src/lib/libc/string/memccpy.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/lib/libc/string/memccpy.c b/src/lib/libc/string/memccpy.c new file mode 100644 index 0000000000..37496d1c26 --- /dev/null +++ b/src/lib/libc/string/memccpy.c | |||
@@ -0,0 +1,60 @@ | |||
1 | /* $OpenBSD: memccpy.c,v 1.4 2003/06/02 20:18:38 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. 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 | #if defined(LIBC_SCCS) && !defined(lint) | ||
33 | #if 0 | ||
34 | static char sccsid[] = "@(#)memccpy.c 8.1 (Berkeley) 6/4/93"; | ||
35 | #else | ||
36 | static char *rcsid = "$OpenBSD: memccpy.c,v 1.4 2003/06/02 20:18:38 millert Exp $"; | ||
37 | #endif | ||
38 | #endif /* LIBC_SCCS and not lint */ | ||
39 | |||
40 | #include <string.h> | ||
41 | |||
42 | void * | ||
43 | memccpy(t, f, c, n) | ||
44 | void *t; | ||
45 | const void *f; | ||
46 | int c; | ||
47 | register size_t n; | ||
48 | { | ||
49 | |||
50 | if (n) { | ||
51 | register unsigned char *tp = t; | ||
52 | register const unsigned char *fp = f; | ||
53 | register unsigned char uc = c; | ||
54 | do { | ||
55 | if ((*tp++ = *fp++) == uc) | ||
56 | return (tp); | ||
57 | } while (--n != 0); | ||
58 | } | ||
59 | return (0); | ||
60 | } | ||