diff options
Diffstat (limited to 'src/lib/libc/stdlib/calloc.c')
-rw-r--r-- | src/lib/libc/stdlib/calloc.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/lib/libc/stdlib/calloc.c b/src/lib/libc/stdlib/calloc.c new file mode 100644 index 0000000000..7aabed235f --- /dev/null +++ b/src/lib/libc/stdlib/calloc.c | |||
@@ -0,0 +1,53 @@ | |||
1 | /*- | ||
2 | * Copyright (c) 1990 The Regents of the University of California. | ||
3 | * 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. Neither the name of the University nor the names of its contributors | ||
14 | * may be used to endorse or promote products derived from this software | ||
15 | * without specific prior written permission. | ||
16 | * | ||
17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
27 | * SUCH DAMAGE. | ||
28 | */ | ||
29 | |||
30 | #if defined(LIBC_SCCS) && !defined(lint) | ||
31 | static char *rcsid = "$OpenBSD: calloc.c,v 1.9 2005/03/30 18:51:49 pat Exp $"; | ||
32 | #endif /* LIBC_SCCS and not lint */ | ||
33 | |||
34 | #include <stdlib.h> | ||
35 | #include <string.h> | ||
36 | #include <limits.h> | ||
37 | #include <errno.h> | ||
38 | |||
39 | void * | ||
40 | calloc(size_t num, size_t size) | ||
41 | { | ||
42 | void *p; | ||
43 | |||
44 | if (num && size && SIZE_T_MAX / num < size) { | ||
45 | errno = ENOMEM; | ||
46 | return NULL; | ||
47 | } | ||
48 | size *= num; | ||
49 | p = malloc(size); | ||
50 | if (p) | ||
51 | memset(p, 0, size); | ||
52 | return(p); | ||
53 | } | ||