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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
#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
#ifdef __cplusplus
extern "C" {
#endif
#undef recv
#undef recvfrom
#undef send
#undef sendto
extern ssize_t __recv_orig(int, void *, size_t, int)
__asm__(__USER_LABEL_PREFIX__ "recv");
extern __inline __attribute__((__always_inline__,__gnu_inline__,__artificial__))
ssize_t 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_orig(sockfd, buf, n, flags);
}
extern ssize_t __recvfrom_orig(int, void *, size_t, int, struct sockaddr *, socklen_t *)
__asm__(__USER_LABEL_PREFIX__ "recvfrom");
extern __inline __attribute__((__always_inline__,__gnu_inline__,__artificial__))
ssize_t 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_orig(sockfd, buf, n, flags, sa, salen);
}
extern ssize_t __send_orig(int, const void *, size_t, int)
__asm__(__USER_LABEL_PREFIX__ "send");
extern __inline __attribute__((__always_inline__,__gnu_inline__,__artificial__))
ssize_t 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_orig(sockfd, buf, n, flags);
}
extern ssize_t __sendto_orig(int, const void *, size_t, int, const struct sockaddr *, socklen_t)
__asm__(__USER_LABEL_PREFIX__ "sendto");
extern __inline __attribute__((__always_inline__,__gnu_inline__,__artificial__))
ssize_t sendto(int sockfd, const void *buf, size_t n, int flags,
const struct sockaddr *sa, socklen_t salen)
{
size_t bos = __builtin_object_size(buf, 0);
if (n > bos)
__builtin_trap();
return __sendto_orig(sockfd, buf, n, flags, sa, salen);
}
#ifdef __cplusplus
}
#endif
#endif
#endif
|
