generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

libc: upgrade some libc functions to _FORTIFY_SOURCE=2

Browse Source 
Upgrade the following functions:

* vsnprintf
* vsprintf
* snprintf
* fgets
* strcpy
* strcat
* strncat
* strlcpy
* strlcat
* strlen
* strchr

Change-Id: Icc036fc7f0bb317e05f7c051617887a1601271aa
This commit is contained in:
Nick Kralevich
2013-04-30 11:31:35 -07:00
parent b94b2851d7
commit 9020fd503c
2 changed files with 11 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
libc/include/stdio.h
View File

@@ -466,8 +466,7 @@ __attribute__((__format__ (printf, 3, 0)))
__attribute__((__nonnull__ (3)))
int vsnprintf(char *dest, size_t size, const char *format, __va_list ap)
{
return __builtin___vsnprintf_chk(dest, size, 0,
__builtin_object_size(dest, 0), format, ap);
return __builtin___vsnprintf_chk(dest, size, 0, __bos(dest), format, ap);
}
__BIONIC_FORTIFY_INLINE
@@ -475,8 +474,7 @@ __attribute__((__format__ (printf, 2, 0)))
__attribute__((__nonnull__ (2)))
int vsprintf(char *dest, const char *format, __va_list ap)
{
return __builtin___vsprintf_chk(dest, 0,
__builtin_object_size(dest, 0), format, ap);
return __builtin___vsprintf_chk(dest, 0, __bos(dest), format, ap);
}
__BIONIC_FORTIFY_INLINE
@@ -485,7 +483,7 @@ __attribute__((__nonnull__ (3)))
int snprintf(char *str, size_t size, const char *format, ...)
{
return __builtin___snprintf_chk(str, size, 0,
__builtin_object_size(str, 0), format, __builtin_va_arg_pack());
__bos(str), format, __builtin_va_arg_pack());
}
__BIONIC_FORTIFY_INLINE
@@ -508,7 +506,7 @@ extern char *__fgets_chk(char *, int, FILE *, size_t);
__BIONIC_FORTIFY_INLINE
char *fgets(char *dest, int size, FILE *stream)
{
size_t bos = __builtin_object_size(dest, 0);
size_t bos = __bos(dest);
// Compiler can prove, at compile time, that the passed in size
// is always negative. Force a compiler error.