111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Copyright (C) 2008 The Android Open Source Project 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * All rights reserved. 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Redistribution and use in source and binary forms, with or without 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * modification, are permitted provided that the following conditions 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * are met: 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * * Redistributions of source code must retain the above copyright 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * * Redistributions in binary form must reproduce the above copyright 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer in 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * the documentation and/or other materials provided with the 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * distribution. 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * SUCH DAMAGE. 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _STRING_H_ 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _STRING_H_ 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/cdefs.h> 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stddef.h> 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <malloc.h> 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <xlocale.h> 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memccpy(void* __restrict, const void* __restrict, int, size_t); 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memchr(const void *, int, size_t) __purefunc; 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memrchr(const void *, int, size_t) __purefunc; 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int memcmp(const void *, const void *, size_t) __purefunc; 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memcpy(void* __restrict, const void* __restrict, size_t); 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memmove(void *, const void *, size_t); 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memset(void *, int, size_t); 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void* memmem(const void *, size_t, const void *, size_t) __purefunc; 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strchr(const char *, int) __purefunc; 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* __strchr_chk(const char *, int, size_t); 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strrchr(const char *, int) __purefunc; 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* __strrchr_chk(const char *, int, size_t); 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strlen(const char *) __purefunc; 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t __strlen_chk(const char *, size_t); 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strcmp(const char *, const char *) __purefunc; 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* stpcpy(char* __restrict, const char* __restrict); 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strcpy(char* __restrict, const char* __restrict); 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strcat(char* __restrict, const char* __restrict); 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strcasecmp(const char *, const char *) __purefunc; 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strncasecmp(const char *, const char *, size_t) __purefunc; 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strdup(const char *); 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strstr(const char *, const char *) __purefunc; 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strcasestr(const char *haystack, const char *needle) __purefunc; 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strtok(char* __restrict, const char* __restrict); 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strtok_r(char* __restrict, const char* __restrict, char** __restrict); 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strerror(int); 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strerror_r(int errnum, char *buf, size_t n); 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strnlen(const char *, size_t) __purefunc; 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strncat(char* __restrict, const char* __restrict, size_t); 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strndup(const char *, size_t); 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strncmp(const char *, const char *, size_t) __purefunc; 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* stpncpy(char* __restrict, const char* __restrict, size_t); 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strncpy(char* __restrict, const char* __restrict, size_t); 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strlcat(char* __restrict, const char* __restrict, size_t); 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strlcpy(char* __restrict, const char* __restrict, size_t); 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strcspn(const char *, const char *) __purefunc; 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strpbrk(const char *, const char *) __purefunc; 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strsep(char** __restrict, const char* __restrict); 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strspn(const char *, const char *); 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* strsignal(int sig); 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strcoll(const char *, const char *) __purefunc; 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strxfrm(char* __restrict, const char* __restrict, size_t); 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int strcoll_l(const char *, const char *, locale_t) __purefunc; 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t strxfrm_l(char* __restrict, const char* __restrict, size_t, locale_t); 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(__BIONIC_FORTIFY) 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid* memcpy(void* __restrict dest, const void* __restrict src, size_t copy_amount) { 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char *d = (char *) dest; 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char *s = (const char *) src; 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t s_len = __bos0(s); 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t d_len = __bos0(d); 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___memcpy_chk(dest, src, copy_amount, d_len); 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid* memmove(void *dest, const void *src, size_t len) { 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___memmove_chk(dest, src, len, __bos0(dest)); 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* stpcpy(char* __restrict dest, const char* __restrict src) { 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___stpcpy_chk(dest, src, __bos(dest)); 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* strcpy(char* __restrict dest, const char* __restrict src) { 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___strcpy_chk(dest, src, __bos(dest)); 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* __stpncpy_chk2(char* __restrict, const char* __restrict, size_t, size_t, size_t); 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 12511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* stpncpy(char* __restrict dest, const char* __restrict src, size_t n) { 12611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos_dest = __bos(dest); 12711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos_src = __bos(src); 12811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos_src == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 13011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___stpncpy_chk(dest, src, n, bos_dest); 13111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 13211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(n) && (n <= bos_src)) { 13411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___stpncpy_chk(dest, src, n, bos_dest); 13511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 13611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t slen = __builtin_strlen(src); 13811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(slen)) { 13911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___stpncpy_chk(dest, src, n, bos_dest); 14011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 14111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __stpncpy_chk2(dest, src, n, bos_dest, bos_src); 14311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 14411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* __strncpy_chk2(char* __restrict, const char* __restrict, size_t, size_t, size_t); 14611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 14811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* strncpy(char* __restrict dest, const char* __restrict src, size_t n) { 14911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos_dest = __bos(dest); 15011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos_src = __bos(src); 15111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos_src == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 15311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___strncpy_chk(dest, src, n, bos_dest); 15411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 15511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(n) && (n <= bos_src)) { 15711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___strncpy_chk(dest, src, n, bos_dest); 15811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 15911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t slen = __builtin_strlen(src); 16111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(slen)) { 16211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___strncpy_chk(dest, src, n, bos_dest); 16311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 16411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strncpy_chk2(dest, src, n, bos_dest, bos_src); 16611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 16711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 16911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* strcat(char* __restrict dest, const char* __restrict src) { 17011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___strcat_chk(dest, src, __bos(dest)); 17111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 17211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 17411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar *strncat(char* __restrict dest, const char* __restrict src, size_t n) { 17511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___strncat_chk(dest, src, n, __bos(dest)); 17611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 17711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 17911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid* memset(void *s, int c, size_t n) { 18011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___memset_chk(s, c, n, __bos0(s)); 18111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 18211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t __strlcpy_real(char* __restrict, const char* __restrict, size_t) 18411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __asm__(__USER_LABEL_PREFIX__ "strlcpy"); 18511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t __strlcpy_chk(char *, const char *, size_t, size_t); 18611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 18811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t strlcpy(char* __restrict dest, const char* __restrict src, size_t size) { 18911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos = __bos(dest); 19011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__clang__) 19211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler does not know destination size. Do not call __strlcpy_chk 19311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 19411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlcpy_real(dest, src, size); 19511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 19611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler can prove, at compile time, that the passed in size 19811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // is always <= the actual object size. Do not call __strlcpy_chk 19911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(size) && (size <= bos)) { 20011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlcpy_real(dest, src, size); 20111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 20211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* !defined(__clang__) */ 20311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 20411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlcpy_chk(dest, src, size, bos); 20511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 20611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 20711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t __strlcat_real(char* __restrict, const char* __restrict, size_t) 20811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __asm__(__USER_LABEL_PREFIX__ "strlcat"); 20911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern size_t __strlcat_chk(char* __restrict, const char* __restrict, size_t, size_t); 21011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 21311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t strlcat(char* __restrict dest, const char* __restrict src, size_t size) { 21411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos = __bos(dest); 21511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__clang__) 21711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler does not know destination size. Do not call __strlcat_chk 21811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 21911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlcat_real(dest, src, size); 22011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 22111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 22211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler can prove, at compile time, that the passed in size 22311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // is always <= the actual object size. Do not call __strlcat_chk 22411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(size) && (size <= bos)) { 22511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlcat_real(dest, src, size); 22611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 22711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* !defined(__clang__) */ 22811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 22911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlcat_chk(dest, src, size, bos); 23011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 23111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 23211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 23311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t strlen(const char *s) { 23411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos = __bos(s); 23511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 23611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__clang__) 23711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler does not know destination size. Do not call __strlen_chk 23811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 23911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin_strlen(s); 24011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 24111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 24211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t slen = __builtin_strlen(s); 24311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(slen)) { 24411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return slen; 24511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 24611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* !defined(__clang__) */ 24711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 24811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strlen_chk(s, bos); 24911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 25011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 25111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 25211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* strchr(const char *s, int c) { 25311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos = __bos(s); 25411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 25511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__clang__) 25611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler does not know destination size. Do not call __strchr_chk 25711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 25811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin_strchr(s, c); 25911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 26011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t slen = __builtin_strlen(s); 26211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(slen) && (slen < bos)) { 26311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin_strchr(s, c); 26411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 26511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* !defined(__clang__) */ 26611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strchr_chk(s, c, bos); 26811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 26911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 27011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 27111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* strrchr(const char *s, int c) { 27211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos = __bos(s); 27311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 27411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__clang__) 27511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler does not know destination size. Do not call __strrchr_chk 27611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 27711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin_strrchr(s, c); 27811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 27911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t slen = __builtin_strlen(s); 28111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(slen) && (slen < bos)) { 28211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin_strrchr(s, c); 28311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 28411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* !defined(__clang__) */ 28511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __strrchr_chk(s, c, bos); 28711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 28811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* defined(__BIONIC_FORTIFY) */ 29111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 29311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* _STRING_H_ */ 295