/* * Copyright (c) 2007-2013 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include <stdlib.h> #include <string.h> #include <stdio.h> #include "secure.h" char * __strcat_chk (char *__restrict dest, const char *__restrict append, size_t dstlen) { size_t len1 = strlen(dest); size_t len2 = strlen(append); if (__builtin_expect (dstlen < len1 + len2 + 1, 0)) __chk_fail_overflow (); if (__builtin_expect (__chk_assert_no_overlap != 0, 1)) __chk_overlap(dest, len1 + len2 + 1, append, len2 + 1); memcpy(dest + len1, append, len2 + 1); return dest; }