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Remove pwrite/write

This commit is contained in:
sin 2015-01-30 16:37:07 +00:00
parent fcec6e8280
commit 6156f7de8b
1 changed files with 0 additions and 34 deletions
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34
include/unistd.h
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@ -23,21 +23,6 @@ __fortify_pread(int fd, void *buf, size_t n, off_t offset)
return pread(fd, buf, n, offset);
}
__errordecl(__pwrite_error, "pwrite: buffer overflow detected");
static inline __attribute__ ((always_inline))
ssize_t
__fortify_pwrite(int fd, void *buf, size_t n, off_t offset)
{
size_t bos = __builtin_object_size(buf, 0);
if (__builtin_constant_p(n) && n > bos)
__pwrite_error();
if (n > bos)
__builtin_trap();
return pwrite(fd, buf, n, offset);
}
__errordecl(__read_error, "read: buffer overflow detected");
static inline __attribute__ ((always_inline))
ssize_t
@ -53,29 +38,10 @@ __fortify_read(int fd, void *buf, size_t n)
return read(fd, buf, n);
}
__errordecl(__write_error, "write: buffer overflow detected");
static inline __attribute__ ((always_inline))
ssize_t
__fortify_write(int fd, void *buf, size_t n)
{
size_t bos = __builtin_object_size(buf, 0);
if (__builtin_constant_p(n) && n > bos)
__write_error();
if (n > bos)
__builtin_trap();
return write(fd, buf, n);
}
#undef pread
#define pread(fd, buf, n, offset) __fortify_pread(fd, buf, n, offset)
#undef pwrite
#define pwrite(fd, buf, n, offset) __fortify_pwrite(fd, buf, n, offset)
#undef read
#define read(fd, buf, n) __fortify_read(fd, buf, n)
#undef write
#define write(fd, buf, n) __fortify_write(fd, buf, n)
#endif