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9385eb3d A |
1 | /*- |
2 | * Copyright (c) 1990, 1993 | |
e9ce8d39 A |
3 | * The Regents of the University of California. All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
5b2abdfb | 34 | #if defined(LIBC_SCCS) && !defined(lint) |
9385eb3d | 35 | static char sccsid[] = "@(#)memccpy.c 8.1 (Berkeley) 6/4/93"; |
5b2abdfb | 36 | #endif /* LIBC_SCCS and not lint */ |
9385eb3d A |
37 | #include <sys/cdefs.h> |
38 | __FBSDID("$FreeBSD: src/lib/libc/string/memccpy.c,v 1.5 2002/03/21 18:44:54 obrien Exp $"); | |
e9ce8d39 | 39 | |
9385eb3d | 40 | #include <string.h> |
e9ce8d39 | 41 | |
9385eb3d A |
42 | void * |
43 | memccpy(t, f, c, n) | |
44 | void *t; | |
45 | const void *f; | |
46 | int c; | |
47 | size_t n; | |
e9ce8d39 | 48 | { |
5b2abdfb | 49 | |
9385eb3d A |
50 | if (n) { |
51 | unsigned char *tp = t; | |
52 | const unsigned char *fp = f; | |
53 | unsigned char uc = c; | |
54 | do { | |
55 | if ((*tp++ = *fp++) == uc) | |
56 | return (tp); | |
57 | } while (--n != 0); | |
58 | } | |
59 | return (0); | |
e9ce8d39 | 60 | } |