/
nerfur
/
openbsd-src
Обзор
Документация
Войти
/
nerfur
/
openbsd-src
Код
Запросы
0
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
libexec/ld.so/reallocarray.c
36 строк
1 KB
guenther
Prep .c files for removing the #includes from */archdep.h
08 янв 2022, 09:49
08 янв 2022, 09:49
b722ba4
Код
Авторство
О чём код?
/* $OpenBSD: reallocarray.c,v 1.3 2022/01/08 06:49:41 guenther 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/types.h> #include <stdint.h> #include "util.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 (1UL << (sizeof(size_t) * 4)) void * _dl_reallocarray(void *optr, size_t nmemb, size_t size) { if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) && nmemb > 0 && SIZE_MAX / nmemb < size) _dl_die("reallocarray overflow"); return _dl_realloc(optr, size * nmemb); }