1 /* Checking macros for string functions. 2 Copyright (C) 2004, 2005 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 2, or (at your option) any later 9 version. 10 11 In addition to the permissions in the GNU General Public License, the 12 Free Software Foundation gives you unlimited permission to link the 13 compiled version of this file into combinations with other programs, 14 and to distribute those combinations without any restriction coming 15 from the use of this file. (The General Public License restrictions 16 do apply in other respects; for example, they cover modification of 17 the file, and distribution when not linked into a combine 18 executable.) 19 20 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 21 WARRANTY; without even the implied warranty of MERCHANTABILITY or 22 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 23 for more details. 24 25 You should have received a copy of the GNU General Public License 26 along with GCC; see the file COPYING. If not, write to the Free 27 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 28 02110-1301, USA. */ 29 30 /* As a special exception, if you link this library with files compiled with 31 GCC to produce an executable, this does not cause the resulting executable 32 to be covered by the GNU General Public License. This exception does not 33 however invalidate any other reasons why the executable file might be 34 covered by the GNU General Public License. */ 35 36 #ifndef _SSP_STRING_H 37 #define _SSP_STRING_H 1 38 39 #include <ssp.h> 40 #include_next <string.h> 41 42 #if __SSP_FORTIFY_LEVEL > 0 43 44 #undef memcpy 45 #undef memmove 46 #undef memset 47 #undef strcat 48 #undef strcpy 49 #undef strncat 50 #undef strncpy 51 #undef mempcpy 52 #undef stpcpy 53 #undef bcopy 54 #undef bzero 55 56 #define memcpy(dest, src, len) \ 57 ((__ssp_bos0 (dest) != (size_t) -1) \ 58 ? __builtin___memcpy_chk (dest, src, len, __ssp_bos0 (dest)) \ 59 : __memcpy_ichk (dest, src, len)) 60 static inline __attribute__((__always_inline__)) void * 61 __memcpy_ichk (void *__restrict__ __dest, const void *__restrict__ __src, 62 size_t __len) 63 { 64 return __builtin___memcpy_chk (__dest, __src, __len, __ssp_bos0 (__dest)); 65 } 66 67 68 #define memmove(dest, src, len) \ 69 ((__ssp_bos0 (dest) != (size_t) -1) \ 70 ? __builtin___memmove_chk (dest, src, len, __ssp_bos0 (dest)) \ 71 : __memmove_ichk (dest, src, len)) 72 static inline __attribute__((__always_inline__)) void * 73 __memmove_ichk (void *__dest, const void *__src, size_t __len) 74 { 75 return __builtin___memmove_chk (__dest, __src, __len, __ssp_bos0 (__dest)); 76 } 77 78 79 #define mempcpy(dest, src, len) \ 80 ((__ssp_bos0 (dest) != (size_t) -1) \ 81 ? __builtin___mempcpy_chk (dest, src, len, __ssp_bos0 (dest)) \ 82 : __mempcpy_ichk (dest, src, len)) 83 static inline __attribute__((__always_inline__)) void * 84 __mempcpy_ichk (void *__restrict__ __dest, const void *__restrict__ __src, 85 size_t __len) 86 { 87 return __builtin___mempcpy_chk (__dest, __src, __len, __ssp_bos0 (__dest)); 88 } 89 90 91 #define memset(dest, ch, len) \ 92 ((__ssp_bos0 (dest) != (size_t) -1) \ 93 ? __builtin___memset_chk (dest, ch, len, __ssp_bos0 (dest)) \ 94 : __memset_ichk (dest, ch, len)) 95 static inline __attribute__((__always_inline__)) void * 96 __memset_ichk (void *__dest, int __ch, size_t __len) 97 { 98 return __builtin___memset_chk (__dest, __ch, __len, __ssp_bos0 (__dest)); 99 } 100 101 #define bcopy(src, dest, len) ((void) \ 102 ((__ssp_bos0 (dest) != (size_t) -1) \ 103 ? __builtin___memmove_chk (dest, src, len, __ssp_bos0 (dest)) \ 104 : __memmove_ichk (dest, src, len))) 105 #define bzero(dest, len) ((void) \ 106 ((__ssp_bos0 (dest) != (size_t) -1) \ 107 ? __builtin___memset_chk (dest, '\0', len, __ssp_bos0 (dest)) \ 108 : __memset_ichk (dest, '\0', len))) 109 110 111 #define strcpy(dest, src) \ 112 ((__ssp_bos (dest) != (size_t) -1) \ 113 ? __builtin___strcpy_chk (dest, src, __ssp_bos (dest)) \ 114 : __strcpy_ichk (dest, src)) 115 static inline __attribute__((__always_inline__)) char * 116 __strcpy_ichk (char *__restrict__ __dest, const char *__restrict__ __src) 117 { 118 return __builtin___strcpy_chk (__dest, __src, __ssp_bos (__dest)); 119 } 120 121 122 #define stpcpy(dest, src) \ 123 ((__ssp_bos (dest) != (size_t) -1) \ 124 ? __builtin___stpcpy_chk (dest, src, __ssp_bos (dest)) \ 125 : __stpcpy_ichk (dest, src)) 126 static inline __attribute__((__always_inline__)) char * 127 __stpcpy_ichk (char *__restrict__ __dest, const char *__restrict__ __src) 128 { 129 return __builtin___stpcpy_chk (__dest, __src, __ssp_bos (__dest)); 130 } 131 132 133 #define strncpy(dest, src, len) \ 134 ((__ssp_bos (dest) != (size_t) -1) \ 135 ? __builtin___strncpy_chk (dest, src, len, __ssp_bos (dest)) \ 136 : __strncpy_ichk (dest, src, len)) 137 static inline __attribute__((__always_inline__)) char * 138 __strncpy_ichk (char *__restrict__ __dest, const char *__restrict__ __src, 139 size_t __len) 140 { 141 return __builtin___strncpy_chk (__dest, __src, __len, __ssp_bos (__dest)); 142 } 143 144 145 #define strcat(dest, src) \ 146 ((__ssp_bos (dest) != (size_t) -1) \ 147 ? __builtin___strcat_chk (dest, src, __ssp_bos (dest)) \ 148 : __strcat_ichk (dest, src)) 149 static inline __attribute__((__always_inline__)) char * 150 __strcat_ichk (char *__restrict__ __dest, const char *__restrict__ __src) 151 { 152 return __builtin___strcat_chk (__dest, __src, __ssp_bos (__dest)); 153 } 154 155 156 #define strncat(dest, src, len) \ 157 ((__ssp_bos (dest) != (size_t) -1) \ 158 ? __builtin___strncat_chk (dest, src, len, __ssp_bos (dest)) \ 159 : __strncat_ichk (dest, src, len)) 160 static inline __attribute__((__always_inline__)) char * 161 __strncat_ichk (char *__restrict__ __dest, const char *__restrict__ __src, 162 size_t __len) 163 { 164 return __builtin___strncat_chk (__dest, __src, __len, __ssp_bos (__dest)); 165 } 166 167 #endif /* __SSP_FORTIFY_LEVEL > 0 */ 168 #endif /* _SSP_STRING_H */ 169