aboutsummaryrefslogtreecommitdiff
path: root/libc/inet/socketcalls.c
blob: 6f4054b7dd8317df875b80404d2648b8edc1d8f6 (plain)
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
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
/*
 * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
 *
 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 */

#include <stddef.h>
#include <sys/syscall.h>
#include <sys/socket.h>
#include <cancel.h>

#ifdef __NR_socketcall
/* 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
#define SYS_ACCEPT4     18
#endif

#ifdef __sparc__
#undef __NR_accept
#undef __NR_accept4
#undef __NR_bind
#undef __NR_connect
#undef __NR_getpeername
#undef __NR_getsockname
#undef __NR_getsockopt
#undef __NR_listen
#undef __NR_recv
#undef __NR_recvfrom
#undef __NR_recvmsg
#undef __NR_send
#undef __NR_sendmsg
#undef __NR_sendto
#undef __NR_setsockopt
#undef __NR_shutdown
#undef __NR_socket
#undef __NR_socketpair
#endif

#ifdef L_accept
static int __NC(accept)(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
{
# ifdef __NR_accept
	return INLINE_SYSCALL(accept, 3, sockfd, addr, addrlen);
# else
	unsigned long args[3];

	args[0] = sockfd;
	args[1] = (unsigned long) addr;
	args[2] = (unsigned long) addrlen;

	return __socketcall(SYS_ACCEPT, args);
# endif
}
CANCELLABLE_SYSCALL(int, accept, (int sockfd, struct sockaddr *addr, socklen_t *addrlen),
		    (sockfd, addr, addrlen))
lt_libc_hidden(accept)
#endif

#ifdef L_accept4
#ifdef __NR_accept4
# define __NR___sys_accept4  __NR_accept4
static _syscall4(int, __sys_accept4, int, fd, struct sockaddr *, addr, socklen_t *, addrlen, int, flags)
int accept4(int fd, struct sockaddr *addr, socklen_t * addrlen, int flags)
{
	if (SINGLE_THREAD_P)
		return __sys_accept4(fd, addr, addrlen, flags);
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
	else {
		int oldtype = LIBC_CANCEL_ASYNC ();
		int result = __sys_accept4(fd, addr, addrlen, flags);
		LIBC_CANCEL_RESET (oldtype);
		return result;
	}
#endif
}
#elif defined(__NR_socketcall)
int accept4(int fd, struct sockaddr *addr, socklen_t *addrlen, int flags)
{
	unsigned long args[4];

	args[0] = fd;
	args[1] = (unsigned long) addr;
	args[2] = (unsigned long) addrlen;
	args[3] = flags;
	if (SINGLE_THREAD_P)
		return __socketcall(SYS_ACCEPT4, args);
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
	else {
		int oldtype = LIBC_CANCEL_ASYNC ();
		int result = __socketcall(SYS_ACCEPT4, args);
		LIBC_CANCEL_RESET (oldtype);
		return result;
	}
#endif
}
#endif
#endif

#ifdef L_bind
int bind(int sockfd, const struct sockaddr *myaddr, socklen_t addrlen)
{
# ifdef __NR_bind
	return INLINE_SYSCALL(bind, 3, sockfd, myaddr, addrlen);
# else
	unsigned long args[3];

	args[0] = sockfd;
	args[1] = (unsigned long) myaddr;
	args[2] = addrlen;
	return __socketcall(SYS_BIND, args);
# endif
}
libc_hidden_def(bind)
#endif

#ifdef L_connect
static int __NC(connect)(int sockfd, const struct sockaddr *saddr, socklen_t addrlen)
{
# ifdef __NR_connect
	return INLINE_SYSCALL(connect, 3, sockfd, saddr, addrlen);
# else
	unsigned long args[3];

	args[0] = sockfd;
	args[1] = (unsigned long) saddr;
	args[2] = addrlen;
	return __socketcall(SYS_CONNECT, args);
# endif
}
CANCELLABLE_SYSCALL(int, connect, (int sockfd, const struct sockaddr *saddr, socklen_t addrlen),
		    (sockfd, saddr, addrlen))
lt_libc_hidden(connect)
#endif

#ifdef L_getpeername
int getpeername(int sockfd, struct sockaddr *addr, socklen_t *paddrlen)
{
# ifdef __NR_getpeername
	return INLINE_SYSCALL(getpeername, 3, sockfd, addr, paddrlen);
# else
	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
int getsockname(int sockfd, struct sockaddr *addr, socklen_t * paddrlen)
{
# ifdef __NR_getsockname
	return INLINE_SYSCALL(getsockname, 3, sockfd, addr, paddrlen);
# else
	unsigned long args[3];

	args[0] = sockfd;
	args[1] = (unsigned long) addr;
	args[2] = (unsigned long) paddrlen;
	return __socketcall(SYS_GETSOCKNAME, args);
# endif
}
libc_hidden_def(getsockname)
#endif

#ifdef L_getsockopt
int getsockopt(int fd, int level, int optname, void *optval,
	       socklen_t *optlen)
{
# ifdef __NR_getsockopt
	return INLINE_SYSCALL(getsockopt, 5, fd, level, optname, optval, optlen);
# else
	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
int listen(int sockfd, int backlog)
{
# ifdef __NR_listen
	return INLINE_SYSCALL(listen, 2, sockfd, backlog);
# else
	unsigned long args[2];

	args[0] = sockfd;
	args[1] = backlog;
	return __socketcall(SYS_LISTEN, args);
# endif
}
libc_hidden_def(listen)
#endif

#ifdef L_recv
static ssize_t __NC(recv)(int sockfd, void *buffer, size_t len, int flags)
{
# ifdef __NR_recv
	return (ssize_t)INLINE_SYSCALL(recv, 4, sockfd, buffer, len, flags);
# elif defined __NR_recvfrom && defined _syscall6
	return __NC(recvfrom)(sockfd, buffer, len, flags, NULL, NULL);
# else
	unsigned long args[4];

	args[0] = sockfd;
	args[1] = (unsigned long) buffer;
	args[2] = len;
	args[3] = flags;
	return (ssize_t)__socketcall(SYS_RECV, args);
# endif
}
CANCELLABLE_SYSCALL(ssize_t, recv, (int sockfd, void *buffer, size_t len, int flags),
		    (sockfd, buffer, len, flags))
lt_libc_hidden(recv)
#endif

#ifdef L_recvfrom
ssize_t __NC(recvfrom)(int sockfd, void *buffer, size_t len, int flags,
		       struct sockaddr *to, socklen_t *tolen)
{
# if defined __NR_recvfrom && defined _syscall6
	return (ssize_t)INLINE_SYSCALL(recvfrom, 6, sockfd, buffer, len,
				       flags, to, tolen);
# else
	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 (ssize_t)__socketcall(SYS_RECVFROM, args);
# endif
}
CANCELLABLE_SYSCALL(ssize_t, recvfrom, (int sockfd, void *buffer, size_t len,
					int flags, struct sockaddr *to, socklen_t *tolen),
		    (sockfd, buffer, len, flags, to, tolen))
lt_libc_hidden(recvfrom)
#endif

#ifdef L_recvmsg
static ssize_t __NC(recvmsg)(int sockfd, struct msghdr *msg, int flags)
{
# ifdef __NR_recvmsg
	return (ssize_t)INLINE_SYSCALL(recvmsg, 3, sockfd, msg, flags);
# else
	unsigned long args[3];

	args[0] = sockfd;
	args[1] = (unsigned long) msg;
	args[2] = flags;
	return (ssize_t)__socketcall(SYS_RECVMSG, args);
# endif
}
CANCELLABLE_SYSCALL(ssize_t, recvmsg, (int sockfd, struct msghdr *msg, int flags),
		    (sockfd, msg, flags))
lt_libc_hidden(recvmsg)
#endif

#ifdef L_send
static ssize_t __NC(send)(int sockfd, const void *buffer, size_t len, int flags)
{
# ifdef __NR_send
	return (ssize_t)INLINE_SYSCALL(send, 4, sockfd, buffer, len, flags);
# elif defined __NR_sendto && defined _syscall6
	return __NC(sendto)(sockfd, buffer, len, flags, NULL, 0);
# else
	unsigned long args[4];

	args[0] = sockfd;
	args[1] = (unsigned long) buffer;
	args[2] = len;
	args[3] = flags;
	return (ssize_t)__socketcall(SYS_SEND, args);
# endif
}
CANCELLABLE_SYSCALL(ssize_t, send, (int sockfd, const void *buffer, size_t len, int flags),
		    (sockfd, buffer, len, flags))
lt_libc_hidden(send)
#endif

#ifdef L_sendmsg
static ssize_t __NC(sendmsg)(int sockfd, const struct msghdr *msg, int flags)
{
# ifdef __NR_sendmsg
	return (ssize_t)INLINE_SYSCALL(sendmsg, 3, sockfd, msg, flags);
# else
	unsigned long args[3];

	args[0] = sockfd;
	args[1] = (unsigned long) msg;
	args[2] = flags;
	return (ssize_t)__socketcall(SYS_SENDMSG, args);
# endif
}
CANCELLABLE_SYSCALL(ssize_t, sendmsg, (int sockfd, const struct msghdr *msg, int flags),
		    (sockfd, msg, flags))
lt_libc_hidden(sendmsg)
#endif

#ifdef L_sendto
ssize_t __NC(sendto)(int sockfd, const void *buffer, size_t len, int flags,
		     const struct sockaddr *to, socklen_t tolen)
{
# if defined __NR_sendto && defined _syscall6
	return (ssize_t)INLINE_SYSCALL(sendto, 6, sockfd, buffer, len, flags, to, tolen);
# else
	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 (ssize_t)__socketcall(SYS_SENDTO, args);
# endif
}
CANCELLABLE_SYSCALL(ssize_t, sendto, (int sockfd, const void *buffer, size_t len,
				      int flags, const struct sockaddr *to, socklen_t tolen),
		    (sockfd, buffer, len, flags, to, tolen))
lt_libc_hidden(sendto)
#endif

#ifdef L_setsockopt
int setsockopt(int fd, int level, int optname, const void *optval, socklen_t optlen)
{
# ifdef __NR_setsockopt
	return INLINE_SYSCALL(setsockopt, 5, fd, level, optname, optval, optlen);
# else
	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
}
libc_hidden_def(setsockopt)
#endif

#ifdef L_shutdown
int shutdown(int sockfd, int how)
{
# ifdef __NR_shutdown
	return INLINE_SYSCALL(shutdown, 2, sockfd, how);
# else
	unsigned long args[2];

	args[0] = sockfd;
	args[1] = how;
	return __socketcall(SYS_SHUTDOWN, args);
# endif
}
#endif

#ifdef L_socket
int socket(int family, int type, int protocol)
{
# ifdef __NR_socket
	return INLINE_SYSCALL(socket, 3, family, type, protocol);
# else
	unsigned long args[3];

	args[0] = family;
	args[1] = type;
	args[2] = (unsigned long) protocol;
	return __socketcall(SYS_SOCKET, args);
# endif
}
libc_hidden_def(socket)
#endif

#ifdef L_socketpair
int socketpair(int family, int type, int protocol, int sockvec[2])
{
# ifdef __NR_socketpair
	return INLINE_SYSCALL(socketpair, 4, family, type, protocol, sockvec);
# else
	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