1/* Copyright (C) 1991-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <string.h>
19
20#undef __memccpy
21#undef memccpy
22
23#ifdef MEMCCPY
24# define __memccpy MEMCCPY
25#endif
26
27/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
28 Return the position in DEST one byte past where C was copied, or
29 NULL if C was not found in the first N bytes of SRC. */
30void *
31__memccpy (void *dest, const void *src, int c, size_t n)
32{
33 void *p = memchr (src, c, n);
34
35 if (p != NULL)
36 return __mempcpy (dest, src, p - src + 1);
37
38 memcpy (dest, src, n);
39 return NULL;
40}
41
42weak_alias (__memccpy, memccpy)
43