[1046] | 1 | /* Checking macros for string functions.
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| 2 | Copyright (C) 2004, 2005, 2009 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is part of GCC.
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| 5 |
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| 6 | GCC is free software; you can redistribute it and/or modify it under
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| 7 | the terms of the GNU General Public License as published by the Free
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| 8 | Software Foundation; either version 3, or (at your option) any later
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| 9 | version.
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| 10 |
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| 11 | In addition to the permissions in the GNU General Public License, the
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| 12 | Free Software Foundation gives you unlimited permission to link the
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| 13 | compiled version of this file into combinations with other programs,
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| 14 | and to distribute those combinations without any restriction coming
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| 15 | from the use of this file. (The General Public License restrictions
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| 16 | do apply in other respects; for example, they cover modification of
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| 17 | the file, and distribution when not linked into a combine
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| 18 | executable.)
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| 19 |
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| 20 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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| 21 | WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 22 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| 23 | for more details.
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| 24 |
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| 25 | Under Section 7 of GPL version 3, you are granted additional
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| 26 | permissions described in the GCC Runtime Library Exception, version
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| 27 | 3.1, as published by the Free Software Foundation.
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| 28 |
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| 29 | You should have received a copy of the GNU General Public License and
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| 30 | a copy of the GCC Runtime Library Exception along with this program;
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| 31 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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| 32 | <http://www.gnu.org/licenses/>. */
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| 33 |
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| 34 |
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| 35 | #ifndef _SSP_STRING_H
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| 36 | #define _SSP_STRING_H 1
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| 37 |
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| 38 | #include <ssp.h>
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| 39 | #include_next <string.h>
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| 40 |
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| 41 | #if __SSP_FORTIFY_LEVEL > 0
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| 42 |
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| 43 | #undef memcpy
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| 44 | #undef memmove
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| 45 | #undef memset
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| 46 | #undef strcat
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| 47 | #undef strcpy
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| 48 | #undef strncat
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| 49 | #undef strncpy
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| 50 | #undef mempcpy
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| 51 | #undef stpcpy
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| 52 | #undef bcopy
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| 53 | #undef bzero
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| 54 |
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| 55 | #define memcpy(dest, src, len) \
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| 56 | ((__ssp_bos0 (dest) != (size_t) -1) \
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| 57 | ? __builtin___memcpy_chk (dest, src, len, __ssp_bos0 (dest)) \
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| 58 | : __memcpy_ichk (dest, src, len))
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| 59 | static inline __attribute__((__always_inline__)) void *
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| 60 | __memcpy_ichk (void *__restrict__ __dest, const void *__restrict__ __src,
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| 61 | size_t __len)
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| 62 | {
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| 63 | return __builtin___memcpy_chk (__dest, __src, __len, __ssp_bos0 (__dest));
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| 64 | }
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| 65 |
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| 66 |
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| 67 | #define memmove(dest, src, len) \
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| 68 | ((__ssp_bos0 (dest) != (size_t) -1) \
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| 69 | ? __builtin___memmove_chk (dest, src, len, __ssp_bos0 (dest)) \
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| 70 | : __memmove_ichk (dest, src, len))
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| 71 | static inline __attribute__((__always_inline__)) void *
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| 72 | __memmove_ichk (void *__dest, const void *__src, size_t __len)
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| 73 | {
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| 74 | return __builtin___memmove_chk (__dest, __src, __len, __ssp_bos0 (__dest));
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| 75 | }
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| 76 |
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| 77 |
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| 78 | #define mempcpy(dest, src, len) \
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| 79 | ((__ssp_bos0 (dest) != (size_t) -1) \
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| 80 | ? __builtin___mempcpy_chk (dest, src, len, __ssp_bos0 (dest)) \
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| 81 | : __mempcpy_ichk (dest, src, len))
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| 82 | static inline __attribute__((__always_inline__)) void *
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| 83 | __mempcpy_ichk (void *__restrict__ __dest, const void *__restrict__ __src,
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| 84 | size_t __len)
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| 85 | {
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| 86 | return __builtin___mempcpy_chk (__dest, __src, __len, __ssp_bos0 (__dest));
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| 87 | }
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| 88 |
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| 89 |
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| 90 | #define memset(dest, ch, len) \
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| 91 | ((__ssp_bos0 (dest) != (size_t) -1) \
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| 92 | ? __builtin___memset_chk (dest, ch, len, __ssp_bos0 (dest)) \
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| 93 | : __memset_ichk (dest, ch, len))
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| 94 | static inline __attribute__((__always_inline__)) void *
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| 95 | __memset_ichk (void *__dest, int __ch, size_t __len)
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| 96 | {
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| 97 | return __builtin___memset_chk (__dest, __ch, __len, __ssp_bos0 (__dest));
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| 98 | }
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| 99 |
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| 100 | #define bcopy(src, dest, len) ((void) \
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| 101 | ((__ssp_bos0 (dest) != (size_t) -1) \
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| 102 | ? __builtin___memmove_chk (dest, src, len, __ssp_bos0 (dest)) \
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| 103 | : __memmove_ichk (dest, src, len)))
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| 104 | #define bzero(dest, len) ((void) \
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| 105 | ((__ssp_bos0 (dest) != (size_t) -1) \
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| 106 | ? __builtin___memset_chk (dest, '\0', len, __ssp_bos0 (dest)) \
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| 107 | : __memset_ichk (dest, '\0', len)))
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| 108 |
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| 109 |
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| 110 | #define strcpy(dest, src) \
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| 111 | ((__ssp_bos (dest) != (size_t) -1) \
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| 112 | ? __builtin___strcpy_chk (dest, src, __ssp_bos (dest)) \
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| 113 | : __strcpy_ichk (dest, src))
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| 114 | static inline __attribute__((__always_inline__)) char *
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| 115 | __strcpy_ichk (char *__restrict__ __dest, const char *__restrict__ __src)
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| 116 | {
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| 117 | return __builtin___strcpy_chk (__dest, __src, __ssp_bos (__dest));
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| 118 | }
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| 119 |
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| 120 |
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| 121 | #define stpcpy(dest, src) \
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| 122 | ((__ssp_bos (dest) != (size_t) -1) \
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| 123 | ? __builtin___stpcpy_chk (dest, src, __ssp_bos (dest)) \
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| 124 | : __stpcpy_ichk (dest, src))
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| 125 | static inline __attribute__((__always_inline__)) char *
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| 126 | __stpcpy_ichk (char *__restrict__ __dest, const char *__restrict__ __src)
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| 127 | {
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| 128 | return __builtin___stpcpy_chk (__dest, __src, __ssp_bos (__dest));
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| 129 | }
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| 130 |
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| 131 |
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| 132 | #define strncpy(dest, src, len) \
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| 133 | ((__ssp_bos (dest) != (size_t) -1) \
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| 134 | ? __builtin___strncpy_chk (dest, src, len, __ssp_bos (dest)) \
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| 135 | : __strncpy_ichk (dest, src, len))
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| 136 | static inline __attribute__((__always_inline__)) char *
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| 137 | __strncpy_ichk (char *__restrict__ __dest, const char *__restrict__ __src,
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| 138 | size_t __len)
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| 139 | {
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| 140 | return __builtin___strncpy_chk (__dest, __src, __len, __ssp_bos (__dest));
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| 141 | }
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| 142 |
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| 143 |
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| 144 | #define strcat(dest, src) \
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| 145 | ((__ssp_bos (dest) != (size_t) -1) \
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| 146 | ? __builtin___strcat_chk (dest, src, __ssp_bos (dest)) \
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| 147 | : __strcat_ichk (dest, src))
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| 148 | static inline __attribute__((__always_inline__)) char *
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| 149 | __strcat_ichk (char *__restrict__ __dest, const char *__restrict__ __src)
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| 150 | {
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| 151 | return __builtin___strcat_chk (__dest, __src, __ssp_bos (__dest));
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| 152 | }
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| 153 |
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| 154 |
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| 155 | #define strncat(dest, src, len) \
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| 156 | ((__ssp_bos (dest) != (size_t) -1) \
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| 157 | ? __builtin___strncat_chk (dest, src, len, __ssp_bos (dest)) \
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| 158 | : __strncat_ichk (dest, src, len))
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| 159 | static inline __attribute__((__always_inline__)) char *
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| 160 | __strncat_ichk (char *__restrict__ __dest, const char *__restrict__ __src,
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| 161 | size_t __len)
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| 162 | {
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| 163 | return __builtin___strncat_chk (__dest, __src, __len, __ssp_bos (__dest));
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| 164 | }
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| 165 |
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| 166 | #endif /* __SSP_FORTIFY_LEVEL > 0 */
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| 167 | #endif /* _SSP_STRING_H */
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