2 This file is part of systemd.
4 Copyright 2010 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 #include "alloc-util.h"
27 void* memdup(const void *p, size_t l) {
40 void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size) {
47 if (*allocated >= need)
50 newalloc = MAX(need * 2, 64u / size);
53 /* check for overflows */
62 *allocated = newalloc;
66 void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size) {
75 q = greedy_realloc(p, allocated, need, size);
79 if (*allocated > prev)
80 memzero(q + prev * size, (*allocated - prev) * size);