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-rw-r--r--libc/stdlib/calloc.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/libc/stdlib/calloc.c b/libc/stdlib/calloc.c
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index 000000000..15281a97f
--- /dev/null
+++ b/libc/stdlib/calloc.c
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+/* 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>
+
+void * calloc(size_t nmemb, size_t lsize)
+{
+ void *result;
+ size_t size=lsize * nmemb;
+
+ /* guard vs integer overflow, but allow nmemb
+ * to fall through and call malloc(0) */
+ if (nmemb && lsize != (size / nmemb)) {
+ __set_errno(ENOMEM);
+ return NULL;
+ }
+ if ((result=malloc(size)) != NULL) {
+ memset(result, 0, size);
+ }
+ return result;
+}
+