diff options
Diffstat (limited to 'libc/stdlib/malloc-930716/calloc.c')
| -rw-r--r-- | libc/stdlib/malloc-930716/calloc.c | 49 |
1 files changed, 32 insertions, 17 deletions
diff --git a/libc/stdlib/malloc-930716/calloc.c b/libc/stdlib/malloc-930716/calloc.c index 55d22ac11..e97db496d 100644 --- a/libc/stdlib/malloc-930716/calloc.c +++ b/libc/stdlib/malloc-930716/calloc.c @@ -1,24 +1,39 @@ -/* calloc.c - C standard library routine. - Copyright (c) 1989, 1993 Michael J. Haertel - You may redistribute this library under the terms of the - GNU Library General Public License (version 2 or any later - version) as published by the Free Software Foundation. - THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED - WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION OR - WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS - SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. */ +/* vi: set sw=4 ts=4: */ +/* calloc for uClibc + * + * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ #include <stdlib.h> #include <string.h> +#include <errno.h> -/* Allocate space for the given number of elements of the given - size, initializing the whole region to binary zeroes. */ -void * calloc(size_t nelem, size_t size) +void * calloc(size_t nmemb, size_t lsize) { - void *result; + void *result; + size_t size=lsize * nmemb; - result = malloc(size * nelem); - if (result) - memset(result, 0, nelem * size); - return result; + /* guard vs integer overflow */ + if (lsize != (size / nmemb)) { + __set_errno(ENOMEM); + return NULL; + } + if ((result=malloc(size))) { + memset(result, 0, size); + } + return result; } |