summaryrefslogtreecommitdiffstats
path: root/pw/reallocarray.c
diff options
context:
space:
mode:
authorCameron Katri <me@cameronkatri.com>2021-02-10 18:13:31 -0500
committerCameron Katri <me@cameronkatri.com>2021-02-10 19:00:38 -0500
commit9768b265bd097e561103188bb97f64ef26c6cee1 (patch)
treed31efcee098e5f18f411f72c26782ebfe53523b5 /pw/reallocarray.c
parentec831d9055a20b69cb9a7300990b8e4414cbd474 (diff)
downloadpw-darwin-9768b265bd097e561103188bb97f64ef26c6cee1.tar.gz
pw-darwin-9768b265bd097e561103188bb97f64ef26c6cee1.zip
New Makefile, freebsd reallocarray.c, freebsd strtonum for 12/13 compat, delete tests
Diffstat (limited to 'pw/reallocarray.c')
-rw-r--r--pw/reallocarray.c51
1 files changed, 41 insertions, 10 deletions
diff --git a/pw/reallocarray.c b/pw/reallocarray.c
index 7310133..e1e9b7c 100644
--- a/pw/reallocarray.c
+++ b/pw/reallocarray.c
@@ -1,11 +1,42 @@
-#include "reallocarray.h"
-
-#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
-void *reallocarray(void *optr, size_t nmemb, size_t size) {
- if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
- nmemb > 0 && SIZE_MAX / nmemb < size) {
- errno = ENOMEM;
- return NULL;
- }
- return realloc(optr, size * nmemb);
+/* $OpenBSD: reallocarray.c,v 1.2 2014/12/08 03:45:00 bcook Exp $ */
+/*
+ * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+/*
+ * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
+ * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
+ */
+#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
+
+void *
+reallocarray(void *optr, size_t nmemb, size_t size)
+{
+
+ if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+ nmemb > 0 && SIZE_MAX / nmemb < size) {
+ errno = ENOMEM;
+ return (NULL);
+ }
+ return (realloc(optr, size * nmemb));
}