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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
|
#define __FORCE_GLIBC
#include <features.h>
#include <errno.h>
#include <syscall.h>
#include <sys/socket.h>
#ifdef __NR_socketcall
extern int __socketcall(int call, unsigned long *args) attribute_hidden;
/* Various socketcall numbers */
#define SYS_SOCKET 1
#define SYS_BIND 2
#define SYS_CONNECT 3
#define SYS_LISTEN 4
#define SYS_ACCEPT 5
#define SYS_GETSOCKNAME 6
#define SYS_GETPEERNAME 7
#define SYS_SOCKETPAIR 8
#define SYS_SEND 9
#define SYS_RECV 10
#define SYS_SENDTO 11
#define SYS_RECVFROM 12
#define SYS_SHUTDOWN 13
#define SYS_SETSOCKOPT 14
#define SYS_GETSOCKOPT 15
#define SYS_SENDMSG 16
#define SYS_RECVMSG 17
#endif
#ifdef L_accept
#ifdef __NR_accept
#define __NR___libc_accept __NR_accept
_syscall3(int, __libc_accept, int, call, struct sockaddr *, addr, socklen_t *,addrlen);
#elif defined(__NR_socketcall)
int __libc_accept(int s, struct sockaddr *addr, socklen_t * addrlen)
{
unsigned long args[3];
args[0] = s;
args[1] = (unsigned long) addr;
args[2] = (unsigned long) addrlen;
return __socketcall(SYS_ACCEPT, args);
}
#endif
hidden_weak_alias(__libc_accept,__accept)
weak_alias(__libc_accept,accept)
#endif
#ifdef L_bind
#ifdef __NR_bind
#define __NR___bind __NR_bind
attribute_hidden _syscall3(int, __bind, int, sockfd, const struct sockaddr *, myaddr, socklen_t, addrlen);
#elif defined(__NR_socketcall)
int attribute_hidden __bind(int sockfd, const struct sockaddr *myaddr, socklen_t addrlen)
{
unsigned long args[3];
args[0] = sockfd;
args[1] = (unsigned long) myaddr;
args[2] = addrlen;
return __socketcall(SYS_BIND, args);
}
#endif
strong_alias(__bind,bind)
#endif
#ifdef L_connect
#ifdef __NR_connect
#define __NR___libc_connect __NR_connect
_syscall3(int, __libc_connect, int, sockfd, const struct sockaddr *, saddr, socklen_t, addrlen);
#elif defined(__NR_socketcall)
int __libc_connect(int sockfd, const struct sockaddr *saddr, socklen_t addrlen)
{
unsigned long args[3];
args[0] = sockfd;
args[1] = (unsigned long) saddr;
args[2] = addrlen;
return __socketcall(SYS_CONNECT, args);
}
#endif
hidden_weak_alias(__libc_connect,__connect)
weak_alias(__libc_connect,connect)
#endif
#ifdef L_getpeername
#ifdef __NR_getpeername
_syscall3(int, getpeername, int, sockfd, struct sockaddr *, addr, socklen_t *,paddrlen);
#elif defined(__NR_socketcall)
int getpeername(int sockfd, struct sockaddr *addr, socklen_t * paddrlen)
{
unsigned long args[3];
args[0] = sockfd;
args[1] = (unsigned long) addr;
args[2] = (unsigned long) paddrlen;
return __socketcall(SYS_GETPEERNAME, args);
}
#endif
#endif
#ifdef L_getsockname
#ifdef __NR_getsockname
#define __NR___getsockname __NR_getsockname
attribute_hidden _syscall3(int, __getsockname, int, sockfd, struct sockaddr *, addr, socklen_t *,paddrlen);
#elif defined(__NR_socketcall)
int attribute_hidden __getsockname(int sockfd, struct sockaddr *addr, socklen_t * paddrlen)
{
unsigned long args[3];
args[0] = sockfd;
args[1] = (unsigned long) addr;
args[2] = (unsigned long) paddrlen;
return __socketcall(SYS_GETSOCKNAME, args);
}
#endif
strong_alias(__getsockname,getsockname)
#endif
#ifdef L_getsockopt
#ifdef __NR_getsockopt
_syscall5(int, getsockopt, int, fd, int, level, int, optname, __ptr_t, optval, socklen_t *, optlen);
#elif defined(__NR_socketcall)
int getsockopt(int fd, int level, int optname, __ptr_t optval,
socklen_t * optlen)
{
unsigned long args[5];
args[0] = fd;
args[1] = level;
args[2] = optname;
args[3] = (unsigned long) optval;
args[4] = (unsigned long) optlen;
return (__socketcall(SYS_GETSOCKOPT, args));
}
#endif
#endif
#ifdef L_listen
#ifdef __NR_listen
#define __NR___listen __NR_listen
attribute_hidden _syscall2(int, __listen, int, sockfd, int, backlog);
#elif defined(__NR_socketcall)
int attribute_hidden __listen(int sockfd, int backlog)
{
unsigned long args[2];
args[0] = sockfd;
args[1] = backlog;
return __socketcall(SYS_LISTEN, args);
}
#endif
strong_alias(__listen,listen)
#endif
#ifdef L_recv
#ifdef __NR_recv
#define __NR___libc_recv __NR_recv
_syscall4(ssize_t, __libc_recv, int, sockfd, __ptr_t, buffer, size_t, len, int, flags);
weak_alias(__libc_recv, recv);
#elif defined(__NR_socketcall)
/* recv, recvfrom added by bir7@leland.stanford.edu */
ssize_t __libc_recv(int sockfd, __ptr_t buffer, size_t len, int flags)
{
unsigned long args[4];
args[0] = sockfd;
args[1] = (unsigned long) buffer;
args[2] = len;
args[3] = flags;
return (__socketcall(SYS_RECV, args));
}
#elif defined(__NR_recvfrom)
ssize_t __libc_recv(int sockfd, __ptr_t buffer, size_t len, int flags)
{
return (__recvfrom(sockfd, buffer, len, flags, NULL, NULL));
}
#endif
hidden_weak_alias(__libc_recv,__recv)
weak_alias(__libc_recv,recv)
#endif
#ifdef L_recvfrom
#ifdef __NR_recvfrom
#define __NR___libc_recvfrom __NR_recvfrom
_syscall6(ssize_t, __libc_recvfrom, int, sockfd, __ptr_t, buffer, size_t, len, int, flags,
struct sockaddr *, to, socklen_t *, tolen);
#elif defined(__NR_socketcall)
/* recv, recvfrom added by bir7@leland.stanford.edu */
ssize_t __libc_recvfrom(int sockfd, __ptr_t buffer, size_t len, int flags,
struct sockaddr *to, socklen_t * tolen)
{
unsigned long args[6];
args[0] = sockfd;
args[1] = (unsigned long) buffer;
args[2] = len;
args[3] = flags;
args[4] = (unsigned long) to;
args[5] = (unsigned long) tolen;
return (__socketcall(SYS_RECVFROM, args));
}
#endif
hidden_weak_alias(__libc_recvfrom,__recvfrom)
weak_alias(__libc_recvfrom,recvfrom)
#endif
#ifdef L_recvmsg
#ifdef __NR_recvmsg
#define __NR___libc_recvmsg __NR_recvmsg
_syscall3(ssize_t, __libc_recvmsg, int, sockfd, struct msghdr *, msg, int, flags);
#elif defined(__NR_socketcall)
ssize_t __libc_recvmsg(int sockfd, struct msghdr *msg, int flags)
{
unsigned long args[3];
args[0] = sockfd;
args[1] = (unsigned long) msg;
args[2] = flags;
return (__socketcall(SYS_RECVMSG, args));
}
#endif
hidden_weak_alias(__libc_recvmsg,__recvmsg)
weak_alias(__libc_recvmsg,recvmsg)
#endif
#ifdef L_send
#ifdef __NR_send
#define __NR___libc_send __NR_send
_syscall4(ssize_t, __libc_send, int, sockfd, const void *, buffer, size_t, len, int, flags);
#elif defined(__NR_socketcall)
/* send, sendto added by bir7@leland.stanford.edu */
ssize_t __libc_send(int sockfd, const void *buffer, size_t len, int flags)
{
unsigned long args[4];
args[0] = sockfd;
args[1] = (unsigned long) buffer;
args[2] = len;
args[3] = flags;
return (__socketcall(SYS_SEND, args));
}
#elif defined(__NR_sendto)
extern ssize_t __sendto (int __fd, __const void *__buf, size_t __n,
int __flags, __CONST_SOCKADDR_ARG __addr,
socklen_t __addr_len) attribute_hidden;
ssize_t __libc_send(int sockfd, const void *buffer, size_t len, int flags)
{
return (__sendto(sockfd, buffer, len, flags, NULL, 0));
}
#endif
hidden_weak_alias(__libc_send,__send)
weak_alias(__libc_send,send)
#endif
#ifdef L_sendmsg
#ifdef __NR_sendmsg
#define __NR___libc_sendmsg __NR_sendmsg
_syscall3(ssize_t, __libc_sendmsg, int, sockfd, const struct msghdr *, msg, int, flags);
#elif defined(__NR_socketcall)
ssize_t __libc_sendmsg(int sockfd, const struct msghdr *msg, int flags)
{
unsigned long args[3];
args[0] = sockfd;
args[1] = (unsigned long) msg;
args[2] = flags;
return (__socketcall(SYS_SENDMSG, args));
}
#endif
hidden_weak_alias(__libc_sendmsg,__sendmsg)
weak_alias(__libc_sendmsg,sendmsg)
#endif
#ifdef L_sendto
#ifdef __NR_sendto
#define __NR___libc_sendto __NR_sendto
_syscall6(ssize_t, __libc_sendto, int, sockfd, const void *, buffer, size_t, len,
int, flags, const struct sockaddr *, to, socklen_t, tolen);
#elif defined(__NR_socketcall)
/* send, sendto added by bir7@leland.stanford.edu */
ssize_t __libc_sendto(int sockfd, const void *buffer, size_t len, int flags,
const struct sockaddr *to, socklen_t tolen)
{
unsigned long args[6];
args[0] = sockfd;
args[1] = (unsigned long) buffer;
args[2] = len;
args[3] = flags;
args[4] = (unsigned long) to;
args[5] = tolen;
return (__socketcall(SYS_SENDTO, args));
}
#endif
hidden_weak_alias(__libc_sendto,__sendto)
weak_alias(__libc_sendto,sendto)
#endif
#ifdef L_setsockopt
#ifdef __NR_setsockopt
#define __NR___setsockopt __NR_setsockopt
attribute_hidden _syscall5(int, __setsockopt, int, fd, int, level, int, optname, const void *, optval, socklen_t, optlen);
#elif defined(__NR_socketcall)
/* [sg]etsockoptions by bir7@leland.stanford.edu */
int attribute_hidden __setsockopt(int fd, int level, int optname, const void *optval,
socklen_t optlen)
{
unsigned long args[5];
args[0] = fd;
args[1] = level;
args[2] = optname;
args[3] = (unsigned long) optval;
args[4] = optlen;
return (__socketcall(SYS_SETSOCKOPT, args));
}
#endif
strong_alias(__setsockopt,setsockopt)
#endif
#ifdef L_shutdown
#ifdef __NR_shutdown
_syscall2(int, shutdown, int, sockfd, int, how);
#elif defined(__NR_socketcall)
/* shutdown by bir7@leland.stanford.edu */
int shutdown(int sockfd, int how)
{
unsigned long args[2];
args[0] = sockfd;
args[1] = how;
return (__socketcall(SYS_SHUTDOWN, args));
}
#endif
#endif
#ifdef L_socket
#ifdef __NR_socket
#define __NR___socket __NR_socket
attribute_hidden _syscall3(int, __socket, int, family, int, type, int, protocol);
#elif defined(__NR_socketcall)
int attribute_hidden __socket(int family, int type, int protocol)
{
unsigned long args[3];
args[0] = family;
args[1] = type;
args[2] = (unsigned long) protocol;
return __socketcall(SYS_SOCKET, args);
}
#endif
strong_alias(__socket,socket)
#endif
#ifdef L_socketpair
#ifdef __NR_socketpair
_syscall4(int, socketpair, int, family, int, type, int, protocol, int *, sockvec);
#elif defined(__NR_socketcall)
int socketpair(int family, int type, int protocol, int sockvec[2])
{
unsigned long args[4];
args[0] = family;
args[1] = type;
args[2] = protocol;
args[3] = (unsigned long) sockvec;
return __socketcall(SYS_SOCKETPAIR, args);
}
#endif
#endif
|
