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author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2020-12-15 23:50:09 +0530 |
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committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2020-12-31 16:55:21 +0530 |
commit | f9de8bfe1a731c309b91d175b4f6f4aeb786effa (patch) | |
tree | de1e299076d996829aacc7aecff1ae98c11a87af /libio/bits/stdio2.h | |
parent | 2a3224c53653214cbba2ec23424702193c80ea3b (diff) | |
download | glibc-f9de8bfe1a731c309b91d175b4f6f4aeb786effa.tar.gz glibc-f9de8bfe1a731c309b91d175b4f6f4aeb786effa.tar.xz glibc-f9de8bfe1a731c309b91d175b4f6f4aeb786effa.zip |
nonstring: Enable __FORTIFY_LEVEL=3
Use __builtin_dynamic_object_size in the remaining functions that don't have compiler builtins as is the case for string functions.
Diffstat (limited to 'libio/bits/stdio2.h')
-rw-r--r-- | libio/bits/stdio2.h | 62 |
1 files changed, 34 insertions, 28 deletions
diff --git a/libio/bits/stdio2.h b/libio/bits/stdio2.h index ff9202c2cb..365c25b7b0 100644 --- a/libio/bits/stdio2.h +++ b/libio/bits/stdio2.h @@ -36,12 +36,13 @@ __fortify_function int __NTH (sprintf (char *__restrict __s, const char *__restrict __fmt, ...)) { return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __va_arg_pack ()); + __glibc_objsize (__s), __fmt, + __va_arg_pack ()); } #elif !defined __cplusplus # define sprintf(str, ...) \ - __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), \ - __VA_ARGS__) + __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, \ + __glibc_objsize (str), __VA_ARGS__) #endif __fortify_function int @@ -49,7 +50,7 @@ __NTH (vsprintf (char *__restrict __s, const char *__restrict __fmt, __gnuc_va_list __ap)) { return __builtin___vsprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __ap); + __glibc_objsize (__s), __fmt, __ap); } #if defined __USE_ISOC99 || defined __USE_UNIX98 @@ -68,12 +69,13 @@ __NTH (snprintf (char *__restrict __s, size_t __n, const char *__restrict __fmt, ...)) { return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __va_arg_pack ()); + __glibc_objsize (__s), __fmt, + __va_arg_pack ()); } # elif !defined __cplusplus # define snprintf(str, len, ...) \ - __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \ - __VA_ARGS__) + __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, \ + __glibc_objsize (str), __VA_ARGS__) # endif __fortify_function int @@ -81,7 +83,7 @@ __NTH (vsnprintf (char *__restrict __s, size_t __n, const char *__restrict __fmt, __gnuc_va_list __ap)) { return __builtin___vsnprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, - __bos (__s), __fmt, __ap); + __glibc_objsize (__s), __fmt, __ap); } #endif @@ -237,8 +239,8 @@ extern char *__REDIRECT (__gets_warn, (char *__str), gets) __fortify_function __wur char * gets (char *__str) { - if (__bos (__str) != (size_t) -1) - return __gets_chk (__str, __bos (__str)); + if (__glibc_objsize (__str) != (size_t) -1) + return __gets_chk (__str, __glibc_objsize (__str)); return __gets_warn (__str); } #endif @@ -259,13 +261,13 @@ extern char *__REDIRECT (__fgets_chk_warn, __fortify_function __wur __attr_access ((__write_only__, 1, 2)) char * fgets (char *__restrict __s, int __n, FILE *__restrict __stream) { - if (__bos (__s) != (size_t) -1) + if (__glibc_objsize (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) - return __fgets_chk (__s, __bos (__s), __n, __stream); + return __fgets_chk (__s, __glibc_objsize (__s), __n, __stream); - if ((size_t) __n > __bos (__s)) - return __fgets_chk_warn (__s, __bos (__s), __n, __stream); + if ((size_t) __n > __glibc_objsize (__s)) + return __fgets_chk_warn (__s, __glibc_objsize (__s), __n, __stream); } return __fgets_alias (__s, __n, __stream); } @@ -289,15 +291,17 @@ __fortify_function __wur size_t fread (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) { - if (__bos0 (__ptr) != (size_t) -1) + if (__glibc_objsize0 (__ptr) != (size_t) -1) { if (!__builtin_constant_p (__size) || !__builtin_constant_p (__n) || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2))) - return __fread_chk (__ptr, __bos0 (__ptr), __size, __n, __stream); + return __fread_chk (__ptr, __glibc_objsize0 (__ptr), __size, __n, + __stream); - if (__size * __n > __bos0 (__ptr)) - return __fread_chk_warn (__ptr, __bos0 (__ptr), __size, __n, __stream); + if (__size * __n > __glibc_objsize0 (__ptr)) + return __fread_chk_warn (__ptr, __glibc_objsize0 (__ptr), __size, __n, + __stream); } return __fread_alias (__ptr, __size, __n, __stream); } @@ -319,13 +323,15 @@ extern char *__REDIRECT (__fgets_unlocked_chk_warn, __fortify_function __wur __attr_access ((__write_only__, 1, 2)) char * fgets_unlocked (char *__restrict __s, int __n, FILE *__restrict __stream) { - if (__bos (__s) != (size_t) -1) + if (__glibc_objsize (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) - return __fgets_unlocked_chk (__s, __bos (__s), __n, __stream); + return __fgets_unlocked_chk (__s, __glibc_objsize (__s), __n, + __stream); - if ((size_t) __n > __bos (__s)) - return __fgets_unlocked_chk_warn (__s, __bos (__s), __n, __stream); + if ((size_t) __n > __glibc_objsize (__s)) + return __fgets_unlocked_chk_warn (__s, __glibc_objsize (__s), __n, + __stream); } return __fgets_unlocked_alias (__s, __n, __stream); } @@ -352,17 +358,17 @@ __fortify_function __wur size_t fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __stream) { - if (__bos0 (__ptr) != (size_t) -1) + if (__glibc_objsize0 (__ptr) != (size_t) -1) { if (!__builtin_constant_p (__size) || !__builtin_constant_p (__n) || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2))) - return __fread_unlocked_chk (__ptr, __bos0 (__ptr), __size, __n, - __stream); + return __fread_unlocked_chk (__ptr, __glibc_objsize0 (__ptr), __size, + __n, __stream); - if (__size * __n > __bos0 (__ptr)) - return __fread_unlocked_chk_warn (__ptr, __bos0 (__ptr), __size, __n, - __stream); + if (__size * __n > __glibc_objsize0 (__ptr)) + return __fread_unlocked_chk_warn (__ptr, __glibc_objsize0 (__ptr), + __size, __n, __stream); } # ifdef __USE_EXTERN_INLINES |