1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#ifndef FORTIFY_SYS_SOCKET_H_
#define FORTIFY_SYS_SOCKET_H_
#include_next <sys/socket.h>
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
static inline __attribute__ ((always_inline))
ssize_t
__fortify_recv(int sockfd, void *buf, size_t n, int flags)
{
size_t bos = __builtin_object_size(buf, 0);
if (n > bos)
__builtin_trap();
return recv(sockfd, buf, n, flags);
}
static inline __attribute__ ((always_inline))
ssize_t
__fortify_recvfrom(int sockfd, void *buf, size_t n, int flags, struct sockaddr *sa, socklen_t *salen)
{
size_t bos = __builtin_object_size(buf, 0);
if (n > bos)
__builtin_trap();
return recvfrom(sockfd, buf, n, flags, sa, salen);
}
static inline __attribute__ ((always_inline))
ssize_t
__fortify_send(int sockfd, const void *buf, size_t n, int flags)
{
size_t bos = __builtin_object_size(buf, 0);
if (n > bos)
__builtin_trap();
return send(sockfd, buf, n, flags);
}
#undef recv
#define recv(sockfd, buf, n, flags) __fortify_recv(sockfd, buf, n, flags)
#undef recvfrom
#define recvfrom(sockfd, buf, n, flags, sa, salen) __fortify_recvfrom(sockfd, buf, n, flags, sa, salen)
#undef send
#define send(sockfd, buf, n, flags) __fortify_send(sockfd, buf, n, flags)
#endif
#endif
|
