-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- This file is part of systemd.
+#include <stdint.h>
+#include <string.h>
- Copyright 2010 Lennart Poettering
+#include "alloc-util.h"
+#include "macro.h"
+#include "memory-util.h"
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
+void* memdup(const void *p, size_t l) {
+ void *ret;
- systemd 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
- Lesser General Public License for more details.
+ assert(l == 0 || p);
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
+ ret = malloc(l ?: 1);
+ if (!ret)
+ return NULL;
-#include "alloc-util.h"
-#include "util.h"
+ memcpy(ret, p, l);
+ return ret;
+}
-void* memdup(const void *p, size_t l) {
- void *r;
+void* memdup_suffix0(const void *p, size_t l) {
+ void *ret;
- assert(p);
+ assert(l == 0 || p);
+
+ /* The same as memdup() but place a safety NUL byte after the allocated memory */
- r = malloc(l);
- if (!r)
+ ret = malloc(l + 1);
+ if (!ret)
return NULL;
- memcpy(r, p, l);
- return r;
+ *((uint8_t*) mempcpy(ret, p, l)) = 0;
+ return ret;
}
void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size) {