2 * sockets.c: Socket handles
5 * Dick Porter (dick@ximian.com)
7 * (C) 2002 Ximian, Inc.
12 #ifndef DISABLE_SOCKETS
18 #include <sys/types.h>
19 #include <sys/socket.h>
23 #ifdef HAVE_SYS_IOCTL_H
24 # include <sys/ioctl.h>
26 #ifdef HAVE_SYS_FILIO_H
27 #include <sys/filio.h> /* defines FIONBIO and FIONREAD */
29 #ifdef HAVE_SYS_SOCKIO_H
30 #include <sys/sockio.h> /* defines SIOCATMARK */
35 #ifndef HAVE_MSG_NOSIGNAL
39 #include <mono/io-layer/wapi.h>
40 #include <mono/io-layer/wapi-private.h>
41 #include <mono/io-layer/socket-private.h>
42 #include <mono/io-layer/handles-private.h>
43 #include <mono/io-layer/socket-wrappers.h>
44 #include <mono/utils/mono-poll.h>
46 #include <netinet/in.h>
47 #include <netinet/tcp.h>
49 #include <arpa/inet.h>
50 #ifdef HAVE_SYS_SENDFILE_H
51 #include <sys/sendfile.h>
55 #define DEBUG(...) g_message(__VA_ARGS__)
60 static guint32 startup_count=0;
61 static guint32 in_cleanup = 0;
63 static void socket_close (gpointer handle, gpointer data);
65 struct _WapiHandleOps _wapi_socket_ops = {
66 socket_close, /* close */
70 NULL, /* special_wait */
74 static mono_once_t socket_ops_once=MONO_ONCE_INIT;
76 static void socket_ops_init (void)
78 /* No capabilities to register */
81 static void socket_close (gpointer handle, gpointer data)
84 struct _WapiHandle_socket *socket_handle = (struct _WapiHandle_socket *)data;
86 DEBUG ("%s: closing socket handle %p", __func__, handle);
88 if (startup_count == 0 && !in_cleanup) {
89 WSASetLastError (WSANOTINITIALISED);
93 /* Shutdown the socket for reading, to interrupt any potential
94 * receives that may be blocking for data. See bug 75705.
96 shutdown (GPOINTER_TO_UINT (handle), SHUT_RD);
99 ret = close (GPOINTER_TO_UINT(handle));
100 } while (ret == -1 && errno == EINTR &&
101 !_wapi_thread_cur_apc_pending ());
105 DEBUG ("%s: close error: %s", __func__, strerror (errno));
106 errnum = errno_to_WSA (errnum, __func__);
108 WSASetLastError (errnum);
112 socket_handle->saved_error = 0;
115 int WSAStartup(guint32 requested, WapiWSAData *data)
121 /* Insist on v2.0+ */
122 if (requested < MAKEWORD(2,0)) {
123 return(WSAVERNOTSUPPORTED);
128 /* I've no idea what is the minor version of the spec I read */
129 data->wHighVersion = MAKEWORD(2,2);
131 data->wVersion = requested < data->wHighVersion? requested:
134 DEBUG ("%s: high version 0x%x", __func__, data->wHighVersion);
136 strncpy (data->szDescription, "WAPI", WSADESCRIPTION_LEN);
137 strncpy (data->szSystemStatus, "groovy", WSASYS_STATUS_LEN);
143 cleanup_close (gpointer handle, gpointer data)
145 _wapi_handle_ops_close (handle, NULL);
151 DEBUG ("%s: cleaning up", __func__);
153 if (--startup_count) {
159 _wapi_handle_foreach (WAPI_HANDLE_SOCKET, cleanup_close, NULL);
164 void WSASetLastError(int error)
166 SetLastError (error);
169 int WSAGetLastError(void)
171 return(GetLastError ());
174 int closesocket(guint32 fd)
176 gpointer handle = GUINT_TO_POINTER (fd);
178 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
179 WSASetLastError (WSAENOTSOCK);
183 _wapi_handle_unref (handle);
187 guint32 _wapi_accept(guint32 fd, struct sockaddr *addr, socklen_t *addrlen)
189 gpointer handle = GUINT_TO_POINTER (fd);
191 struct _WapiHandle_socket *socket_handle;
192 struct _WapiHandle_socket new_socket_handle = {0};
196 if (startup_count == 0) {
197 WSASetLastError (WSANOTINITIALISED);
198 return(INVALID_SOCKET);
201 if (addr != NULL && *addrlen < sizeof(struct sockaddr)) {
202 WSASetLastError (WSAEFAULT);
203 return(INVALID_SOCKET);
206 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
207 WSASetLastError (WSAENOTSOCK);
208 return(INVALID_SOCKET);
211 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
212 (gpointer *)&socket_handle);
214 g_warning ("%s: error looking up socket handle %p",
216 WSASetLastError (WSAENOTSOCK);
217 return(INVALID_SOCKET);
221 new_fd = accept (fd, addr, addrlen);
222 } while (new_fd == -1 && errno == EINTR &&
223 !_wapi_thread_cur_apc_pending());
227 DEBUG ("%s: accept error: %s", __func__, strerror(errno));
229 errnum = errno_to_WSA (errnum, __func__);
230 WSASetLastError (errnum);
232 return(INVALID_SOCKET);
235 if (new_fd >= _wapi_fd_reserve) {
236 DEBUG ("%s: File descriptor is too big", __func__);
238 WSASetLastError (WSASYSCALLFAILURE);
242 return(INVALID_SOCKET);
245 new_socket_handle.domain = socket_handle->domain;
246 new_socket_handle.type = socket_handle->type;
247 new_socket_handle.protocol = socket_handle->protocol;
248 new_socket_handle.still_readable = 1;
250 new_handle = _wapi_handle_new_fd (WAPI_HANDLE_SOCKET, new_fd,
252 if(new_handle == _WAPI_HANDLE_INVALID) {
253 g_warning ("%s: error creating socket handle", __func__);
254 WSASetLastError (ERROR_GEN_FAILURE);
255 return(INVALID_SOCKET);
258 DEBUG ("%s: returning newly accepted socket handle %p with",
259 __func__, new_handle);
264 int _wapi_bind(guint32 fd, struct sockaddr *my_addr, socklen_t addrlen)
266 gpointer handle = GUINT_TO_POINTER (fd);
269 if (startup_count == 0) {
270 WSASetLastError (WSANOTINITIALISED);
271 return(SOCKET_ERROR);
274 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
275 WSASetLastError (WSAENOTSOCK);
276 return(SOCKET_ERROR);
279 ret = bind (fd, my_addr, addrlen);
282 DEBUG ("%s: bind error: %s", __func__, strerror(errno));
283 errnum = errno_to_WSA (errnum, __func__);
284 WSASetLastError (errnum);
286 return(SOCKET_ERROR);
291 int _wapi_connect(guint32 fd, const struct sockaddr *serv_addr,
294 gpointer handle = GUINT_TO_POINTER (fd);
295 struct _WapiHandle_socket *socket_handle;
299 if (startup_count == 0) {
300 WSASetLastError (WSANOTINITIALISED);
301 return(SOCKET_ERROR);
304 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
305 WSASetLastError (WSAENOTSOCK);
306 return(SOCKET_ERROR);
309 if (connect (fd, serv_addr, addrlen) == -1) {
316 if (errno != EINTR) {
317 DEBUG ("%s: connect error: %s", __func__,
320 errnum = errno_to_WSA (errnum, __func__);
321 if (errnum == WSAEINPROGRESS)
322 errnum = WSAEWOULDBLOCK; /* see bug #73053 */
324 WSASetLastError (errnum);
327 * On solaris x86 getsockopt (SO_ERROR) is not set after
328 * connect () fails so we need to save this error.
330 * But don't do this for EWOULDBLOCK (bug 317315)
332 if (errnum != WSAEWOULDBLOCK) {
333 ok = _wapi_lookup_handle (handle,
335 (gpointer *)&socket_handle);
337 /* ECONNRESET means the socket was closed by another thread */
338 /* Async close on mac raises ECONNABORTED. */
339 if (errnum != WSAECONNRESET && errnum != WSAENETDOWN)
340 g_warning ("%s: error looking up socket handle %p (error %d)", __func__, handle, errnum);
342 socket_handle->saved_error = errnum;
345 return(SOCKET_ERROR);
349 fds.events = POLLOUT;
350 while (mono_poll (&fds, 1, -1) == -1 &&
351 !_wapi_thread_cur_apc_pending ()) {
352 if (errno != EINTR) {
353 errnum = errno_to_WSA (errno, __func__);
355 DEBUG ("%s: connect poll error: %s",
356 __func__, strerror (errno));
358 WSASetLastError (errnum);
359 return(SOCKET_ERROR);
363 len = sizeof(so_error);
364 if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &so_error,
366 errnum = errno_to_WSA (errno, __func__);
368 DEBUG ("%s: connect getsockopt error: %s",
369 __func__, strerror (errno));
371 WSASetLastError (errnum);
372 return(SOCKET_ERROR);
376 errnum = errno_to_WSA (so_error, __func__);
378 /* Need to save this socket error */
379 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
380 (gpointer *)&socket_handle);
382 g_warning ("%s: error looking up socket handle %p", __func__, handle);
384 socket_handle->saved_error = errnum;
387 DEBUG ("%s: connect getsockopt returned error: %s",
388 __func__, strerror (so_error));
390 WSASetLastError (errnum);
391 return(SOCKET_ERROR);
398 int _wapi_getpeername(guint32 fd, struct sockaddr *name, socklen_t *namelen)
400 gpointer handle = GUINT_TO_POINTER (fd);
403 if (startup_count == 0) {
404 WSASetLastError (WSANOTINITIALISED);
405 return(SOCKET_ERROR);
408 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
409 WSASetLastError (WSAENOTSOCK);
410 return(SOCKET_ERROR);
413 ret = getpeername (fd, name, namelen);
416 DEBUG ("%s: getpeername error: %s", __func__,
419 errnum = errno_to_WSA (errnum, __func__);
420 WSASetLastError (errnum);
422 return(SOCKET_ERROR);
428 int _wapi_getsockname(guint32 fd, struct sockaddr *name, socklen_t *namelen)
430 gpointer handle = GUINT_TO_POINTER (fd);
433 if (startup_count == 0) {
434 WSASetLastError (WSANOTINITIALISED);
435 return(SOCKET_ERROR);
438 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
439 WSASetLastError (WSAENOTSOCK);
440 return(SOCKET_ERROR);
443 ret = getsockname (fd, name, namelen);
446 DEBUG ("%s: getsockname error: %s", __func__,
449 errnum = errno_to_WSA (errnum, __func__);
450 WSASetLastError (errnum);
452 return(SOCKET_ERROR);
458 int _wapi_getsockopt(guint32 fd, int level, int optname, void *optval,
461 gpointer handle = GUINT_TO_POINTER (fd);
465 struct _WapiHandle_socket *socket_handle;
468 if (startup_count == 0) {
469 WSASetLastError (WSANOTINITIALISED);
470 return(SOCKET_ERROR);
473 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
474 WSASetLastError (WSAENOTSOCK);
475 return(SOCKET_ERROR);
479 if (level == SOL_SOCKET &&
480 (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)) {
482 *optlen = sizeof (tv);
485 ret = getsockopt (fd, level, optname, tmp_val, optlen);
488 DEBUG ("%s: getsockopt error: %s", __func__,
491 errnum = errno_to_WSA (errnum, __func__);
492 WSASetLastError (errnum);
494 return(SOCKET_ERROR);
497 if (level == SOL_SOCKET &&
498 (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)) {
499 *((int *) optval) = tv.tv_sec * 1000 + (tv.tv_usec / 1000); // milli from micro
500 *optlen = sizeof (int);
503 if (optname == SO_ERROR) {
504 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
505 (gpointer *)&socket_handle);
507 g_warning ("%s: error looking up socket handle %p",
510 /* can't extract the last error */
511 *((int *) optval) = errno_to_WSA (*((int *)optval),
514 if (*((int *)optval) != 0) {
515 *((int *) optval) = errno_to_WSA (*((int *)optval),
517 socket_handle->saved_error = *((int *)optval);
519 *((int *)optval) = socket_handle->saved_error;
527 int _wapi_listen(guint32 fd, int backlog)
529 gpointer handle = GUINT_TO_POINTER (fd);
532 if (startup_count == 0) {
533 WSASetLastError (WSANOTINITIALISED);
534 return(SOCKET_ERROR);
537 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
538 WSASetLastError (WSAENOTSOCK);
539 return(SOCKET_ERROR);
542 ret = listen (fd, backlog);
545 DEBUG ("%s: listen error: %s", __func__, strerror (errno));
547 errnum = errno_to_WSA (errnum, __func__);
548 WSASetLastError (errnum);
550 return(SOCKET_ERROR);
556 int _wapi_recv(guint32 fd, void *buf, size_t len, int recv_flags)
558 return(_wapi_recvfrom (fd, buf, len, recv_flags, NULL, 0));
561 int _wapi_recvfrom(guint32 fd, void *buf, size_t len, int recv_flags,
562 struct sockaddr *from, socklen_t *fromlen)
564 gpointer handle = GUINT_TO_POINTER (fd);
565 struct _WapiHandle_socket *socket_handle;
569 if (startup_count == 0) {
570 WSASetLastError (WSANOTINITIALISED);
571 return(SOCKET_ERROR);
574 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
575 WSASetLastError (WSAENOTSOCK);
576 return(SOCKET_ERROR);
580 ret = recvfrom (fd, buf, len, recv_flags, from, fromlen);
581 } while (ret == -1 && errno == EINTR &&
582 !_wapi_thread_cur_apc_pending ());
584 if (ret == 0 && len > 0) {
585 /* According to the Linux man page, recvfrom only
586 * returns 0 when the socket has been shut down
587 * cleanly. Turn this into an EINTR to simulate win32
588 * behaviour of returning EINTR when a socket is
589 * closed while the recvfrom is blocking (we use a
590 * shutdown() in socket_close() to trigger this.) See
593 /* Distinguish between the socket being shut down at
594 * the local or remote ends, and reads that request 0
598 /* If this returns FALSE, it means the socket has been
599 * closed locally. If it returns TRUE, but
600 * still_readable != 1 then shutdown
601 * (SHUT_RD|SHUT_RDWR) has been called locally.
603 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
604 (gpointer *)&socket_handle);
605 if (ok == FALSE || socket_handle->still_readable != 1) {
613 DEBUG ("%s: recv error: %s", __func__, strerror(errno));
615 errnum = errno_to_WSA (errnum, __func__);
616 WSASetLastError (errnum);
618 return(SOCKET_ERROR);
624 _wapi_recvmsg(guint32 fd, struct msghdr *msg, int recv_flags)
626 gpointer handle = GUINT_TO_POINTER (fd);
627 struct _WapiHandle_socket *socket_handle;
631 if (startup_count == 0) {
632 WSASetLastError (WSANOTINITIALISED);
633 return(SOCKET_ERROR);
636 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
637 WSASetLastError (WSAENOTSOCK);
638 return(SOCKET_ERROR);
642 ret = recvmsg (fd, msg, recv_flags);
643 } while (ret == -1 && errno == EINTR &&
644 !_wapi_thread_cur_apc_pending ());
647 /* see _wapi_recvfrom */
648 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
649 (gpointer *)&socket_handle);
650 if (ok == FALSE || socket_handle->still_readable != 1) {
658 DEBUG ("%s: recvmsg error: %s", __func__, strerror(errno));
660 errnum = errno_to_WSA (errnum, __func__);
661 WSASetLastError (errnum);
663 return(SOCKET_ERROR);
668 int _wapi_send(guint32 fd, const void *msg, size_t len, int send_flags)
670 gpointer handle = GUINT_TO_POINTER (fd);
673 if (startup_count == 0) {
674 WSASetLastError (WSANOTINITIALISED);
675 return(SOCKET_ERROR);
678 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
679 WSASetLastError (WSAENOTSOCK);
680 return(SOCKET_ERROR);
684 ret = send (fd, msg, len, send_flags);
685 } while (ret == -1 && errno == EINTR &&
686 !_wapi_thread_cur_apc_pending ());
690 DEBUG ("%s: send error: %s", __func__, strerror (errno));
693 /* At least linux returns EAGAIN/EWOULDBLOCK when the timeout has been set on
694 * a blocking socket. See bug #599488 */
695 if (errnum == EAGAIN) {
696 ret = fcntl (fd, F_GETFL, 0);
697 if (ret != -1 && (ret & O_NONBLOCK) == 0)
700 #endif /* O_NONBLOCK */
701 errnum = errno_to_WSA (errnum, __func__);
702 WSASetLastError (errnum);
704 return(SOCKET_ERROR);
709 int _wapi_sendto(guint32 fd, const void *msg, size_t len, int send_flags,
710 const struct sockaddr *to, socklen_t tolen)
712 gpointer handle = GUINT_TO_POINTER (fd);
715 if (startup_count == 0) {
716 WSASetLastError (WSANOTINITIALISED);
717 return(SOCKET_ERROR);
720 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
721 WSASetLastError (WSAENOTSOCK);
722 return(SOCKET_ERROR);
726 ret = sendto (fd, msg, len, send_flags, to, tolen);
727 } while (ret == -1 && errno == EINTR &&
728 !_wapi_thread_cur_apc_pending ());
732 DEBUG ("%s: send error: %s", __func__, strerror (errno));
734 errnum = errno_to_WSA (errnum, __func__);
735 WSASetLastError (errnum);
737 return(SOCKET_ERROR);
743 _wapi_sendmsg(guint32 fd, const struct msghdr *msg, int send_flags)
745 gpointer handle = GUINT_TO_POINTER (fd);
748 if (startup_count == 0) {
749 WSASetLastError (WSANOTINITIALISED);
750 return(SOCKET_ERROR);
753 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
754 WSASetLastError (WSAENOTSOCK);
755 return(SOCKET_ERROR);
759 ret = sendmsg (fd, msg, send_flags);
760 } while (ret == -1 && errno == EINTR &&
761 !_wapi_thread_cur_apc_pending ());
765 DEBUG ("%s: sendmsg error: %s", __func__, strerror (errno));
767 errnum = errno_to_WSA (errnum, __func__);
768 WSASetLastError (errnum);
770 return(SOCKET_ERROR);
775 int _wapi_setsockopt(guint32 fd, int level, int optname,
776 const void *optval, socklen_t optlen)
778 gpointer handle = GUINT_TO_POINTER (fd);
783 if (startup_count == 0) {
784 WSASetLastError (WSANOTINITIALISED);
785 return(SOCKET_ERROR);
788 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
789 WSASetLastError (WSAENOTSOCK);
790 return(SOCKET_ERROR);
794 if (level == SOL_SOCKET &&
795 (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)) {
796 int ms = *((int *) optval);
797 tv.tv_sec = ms / 1000;
798 tv.tv_usec = (ms % 1000) * 1000; // micro from milli
800 optlen = sizeof (tv);
801 #if defined (__linux__)
802 } else if (level == SOL_SOCKET &&
803 (optname == SO_SNDBUF || optname == SO_RCVBUF)) {
804 /* According to socket(7) the Linux kernel doubles the
805 * buffer sizes "to allow space for bookkeeping
808 int bufsize = *((int *) optval);
815 ret = setsockopt (fd, level, optname, tmp_val, optlen);
818 DEBUG ("%s: setsockopt error: %s", __func__,
821 errnum = errno_to_WSA (errnum, __func__);
822 WSASetLastError (errnum);
824 return(SOCKET_ERROR);
827 #if defined (SO_REUSEPORT)
828 /* BSD's and MacOS X multicast sockets also need SO_REUSEPORT when SO_REUSEADDR is requested. */
829 if (level == SOL_SOCKET && optname == SO_REUSEADDR) {
831 socklen_t type_len = sizeof (type);
833 if (!getsockopt (fd, level, SO_TYPE, &type, &type_len)) {
834 if (type == SOCK_DGRAM)
835 setsockopt (fd, level, SO_REUSEPORT, tmp_val, optlen);
843 int _wapi_shutdown(guint32 fd, int how)
845 struct _WapiHandle_socket *socket_handle;
847 gpointer handle = GUINT_TO_POINTER (fd);
850 if (startup_count == 0) {
851 WSASetLastError (WSANOTINITIALISED);
852 return(SOCKET_ERROR);
855 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
856 WSASetLastError (WSAENOTSOCK);
857 return(SOCKET_ERROR);
860 if (how == SHUT_RD ||
862 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
863 (gpointer *)&socket_handle);
865 g_warning ("%s: error looking up socket handle %p",
867 WSASetLastError (WSAENOTSOCK);
868 return(SOCKET_ERROR);
871 socket_handle->still_readable = 0;
874 ret = shutdown (fd, how);
877 DEBUG ("%s: shutdown error: %s", __func__,
880 errnum = errno_to_WSA (errnum, __func__);
881 WSASetLastError (errnum);
883 return(SOCKET_ERROR);
889 guint32 _wapi_socket(int domain, int type, int protocol, void *unused,
890 guint32 unused2, guint32 unused3)
892 struct _WapiHandle_socket socket_handle = {0};
896 socket_handle.domain = domain;
897 socket_handle.type = type;
898 socket_handle.protocol = protocol;
899 socket_handle.still_readable = 1;
901 fd = socket (domain, type, protocol);
902 if (fd == -1 && domain == AF_INET && type == SOCK_RAW &&
904 /* Retry with protocol == 4 (see bug #54565) */
905 socket_handle.protocol = 4;
906 fd = socket (AF_INET, SOCK_RAW, 4);
911 DEBUG ("%s: socket error: %s", __func__, strerror (errno));
912 errnum = errno_to_WSA (errnum, __func__);
913 WSASetLastError (errnum);
915 return(INVALID_SOCKET);
918 if (fd >= _wapi_fd_reserve) {
919 DEBUG ("%s: File descriptor is too big (%d >= %d)",
920 __func__, fd, _wapi_fd_reserve);
922 WSASetLastError (WSASYSCALLFAILURE);
925 return(INVALID_SOCKET);
928 /* .net seems to set this by default for SOCK_STREAM, not for
929 * SOCK_DGRAM (see bug #36322)
931 * It seems winsock has a rather different idea of what
932 * SO_REUSEADDR means. If it's set, then a new socket can be
933 * bound over an existing listening socket. There's a new
934 * windows-specific option called SO_EXCLUSIVEADDRUSE but
935 * using that means the socket MUST be closed properly, or a
936 * denial of service can occur. Luckily for us, winsock
937 * behaves as though any other system would when SO_REUSEADDR
938 * is true, so we don't need to do anything else here. See
944 ret = setsockopt (fd, SOL_SOCKET, SO_REUSEADDR, &true,
949 DEBUG ("%s: Error setting SO_REUSEADDR", __func__);
951 errnum = errno_to_WSA (errnum, __func__);
952 WSASetLastError (errnum);
956 return(INVALID_SOCKET);
961 mono_once (&socket_ops_once, socket_ops_init);
963 handle = _wapi_handle_new_fd (WAPI_HANDLE_SOCKET, fd, &socket_handle);
964 if (handle == _WAPI_HANDLE_INVALID) {
965 g_warning ("%s: error creating socket handle", __func__);
966 WSASetLastError (WSASYSCALLFAILURE);
968 return(INVALID_SOCKET);
971 DEBUG ("%s: returning socket handle %p", __func__, handle);
976 struct hostent *_wapi_gethostbyname(const char *hostname)
980 if (startup_count == 0) {
981 WSASetLastError (WSANOTINITIALISED);
985 he = gethostbyname (hostname);
987 DEBUG ("%s: gethostbyname error: %s", __func__,
992 WSASetLastError (WSAHOST_NOT_FOUND);
994 #if NO_ADDRESS != NO_DATA
998 WSASetLastError (WSANO_DATA);
1001 WSASetLastError (WSANO_RECOVERY);
1004 WSASetLastError (WSATRY_AGAIN);
1007 g_warning ("%s: Need to translate %d into winsock error", __func__, h_errno);
1015 static gboolean socket_disconnect (guint32 fd)
1017 struct _WapiHandle_socket *socket_handle;
1019 gpointer handle = GUINT_TO_POINTER (fd);
1022 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_SOCKET,
1023 (gpointer *)&socket_handle);
1025 g_warning ("%s: error looking up socket handle %p", __func__,
1027 WSASetLastError (WSAENOTSOCK);
1031 newsock = socket (socket_handle->domain, socket_handle->type,
1032 socket_handle->protocol);
1033 if (newsock == -1) {
1034 gint errnum = errno;
1036 DEBUG ("%s: socket error: %s", __func__, strerror (errno));
1038 errnum = errno_to_WSA (errnum, __func__);
1039 WSASetLastError (errnum);
1044 /* According to Stevens "Advanced Programming in the UNIX
1045 * Environment: UNIX File I/O" dup2() is atomic so there
1046 * should not be a race condition between the old fd being
1047 * closed and the new socket fd being copied over
1050 ret = dup2 (newsock, fd);
1051 } while (ret == -1 && errno == EAGAIN);
1054 gint errnum = errno;
1056 DEBUG ("%s: dup2 error: %s", __func__, strerror (errno));
1058 errnum = errno_to_WSA (errnum, __func__);
1059 WSASetLastError (errnum);
1069 static gboolean wapi_disconnectex (guint32 fd, WapiOverlapped *overlapped,
1070 guint32 flags, guint32 reserved)
1072 DEBUG ("%s: called on socket %d!", __func__, fd);
1074 if (reserved != 0) {
1075 WSASetLastError (WSAEINVAL);
1079 /* We could check the socket type here and fail unless its
1080 * SOCK_STREAM, SOCK_SEQPACKET or SOCK_RDM (according to msdn)
1081 * if we really wanted to
1084 return(socket_disconnect (fd));
1087 #define SF_BUFFER_SIZE 16384
1089 wapi_sendfile (guint32 socket, gpointer fd, guint32 bytes_to_write, guint32 bytes_per_send, guint32 flags)
1091 #if defined(HAVE_SENDFILE) && (defined(__linux__) || defined(DARWIN))
1092 gint file = GPOINTER_TO_INT (fd);
1096 struct stat statbuf;
1098 n = fstat (file, &statbuf);
1101 errnum = errno_to_WSA (errnum, __func__);
1102 WSASetLastError (errnum);
1103 return SOCKET_ERROR;
1107 res = sendfile (socket, file, NULL, statbuf.st_size);
1108 #elif defined(DARWIN)
1109 /* TODO: header/tail could be sent in the 5th argument */
1110 /* TODO: Might not send the entire file for non-blocking sockets */
1111 res = sendfile (file, socket, 0, &statbuf.st_size, NULL, 0);
1113 } while (res != -1 && (errno == EINTR || errno == EAGAIN) && !_wapi_thread_cur_apc_pending ());
1116 errnum = errno_to_WSA (errnum, __func__);
1117 WSASetLastError (errnum);
1118 return SOCKET_ERROR;
1121 /* Default implementation */
1122 gint file = GPOINTER_TO_INT (fd);
1126 buffer = g_malloc (SF_BUFFER_SIZE);
1129 n = read (file, buffer, SF_BUFFER_SIZE);
1130 } while (n == -1 && errno == EINTR && !_wapi_thread_cur_apc_pending ());
1135 return 0; /* We're done reading */
1138 n = send (socket, buffer, n, 0); /* short sends? enclose this in a loop? */
1139 } while (n == -1 && errno == EINTR && !_wapi_thread_cur_apc_pending ());
1143 gint errnum = errno;
1144 errnum = errno_to_WSA (errnum, __func__);
1145 WSASetLastError (errnum);
1147 return SOCKET_ERROR;
1155 TransmitFile (guint32 socket, gpointer file, guint32 bytes_to_write, guint32 bytes_per_send, WapiOverlapped *ol,
1156 WapiTransmitFileBuffers *buffers, guint32 flags)
1158 gpointer sock = GUINT_TO_POINTER (socket);
1161 if (startup_count == 0) {
1162 WSASetLastError (WSANOTINITIALISED);
1166 if (_wapi_handle_type (sock) != WAPI_HANDLE_SOCKET) {
1167 WSASetLastError (WSAENOTSOCK);
1171 /* Write the header */
1172 if (buffers != NULL && buffers->Head != NULL && buffers->HeadLength > 0) {
1173 ret = _wapi_send (socket, buffers->Head, buffers->HeadLength, 0);
1174 if (ret == SOCKET_ERROR)
1178 ret = wapi_sendfile (socket, file, bytes_to_write, bytes_per_send, flags);
1179 if (ret == SOCKET_ERROR)
1182 /* Write the tail */
1183 if (buffers != NULL && buffers->Tail != NULL && buffers->TailLength > 0) {
1184 ret = _wapi_send (socket, buffers->Tail, buffers->TailLength, 0);
1185 if (ret == SOCKET_ERROR)
1189 if ((flags & TF_DISCONNECT) == TF_DISCONNECT)
1190 closesocket (socket);
1199 } extension_functions[] = {
1200 {WSAID_DISCONNECTEX, wapi_disconnectex},
1201 {WSAID_TRANSMITFILE, TransmitFile},
1206 WSAIoctl (guint32 fd, gint32 command,
1207 gchar *input, gint i_len,
1208 gchar *output, gint o_len, glong *written,
1209 void *unused1, void *unused2)
1211 gpointer handle = GUINT_TO_POINTER (fd);
1213 gchar *buffer = NULL;
1215 if (startup_count == 0) {
1216 WSASetLastError (WSANOTINITIALISED);
1217 return(SOCKET_ERROR);
1220 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
1221 WSASetLastError (WSAENOTSOCK);
1222 return SOCKET_ERROR;
1225 if (command == SIO_GET_EXTENSION_FUNCTION_POINTER) {
1227 WapiGuid *guid = (WapiGuid *)input;
1229 if (i_len < sizeof(WapiGuid)) {
1230 /* As far as I can tell, windows doesn't
1231 * actually set an error here...
1233 WSASetLastError (WSAEINVAL);
1234 return(SOCKET_ERROR);
1237 if (o_len < sizeof(gpointer)) {
1239 WSASetLastError (WSAEINVAL);
1240 return(SOCKET_ERROR);
1243 if (output == NULL) {
1245 WSASetLastError (WSAEINVAL);
1246 return(SOCKET_ERROR);
1249 while(extension_functions[i].func != NULL) {
1250 if (!memcmp (guid, &extension_functions[i].guid,
1251 sizeof(WapiGuid))) {
1252 memcpy (output, &extension_functions[i].func,
1254 *written = sizeof(gpointer);
1261 WSASetLastError (WSAEINVAL);
1262 return(SOCKET_ERROR);
1265 if (command == SIO_KEEPALIVE_VALS) {
1267 uint32_t keepalivetime;
1268 uint32_t keepaliveinterval;
1270 if (i_len < (3 * sizeof (uint32_t))) {
1271 WSASetLastError (WSAEINVAL);
1272 return SOCKET_ERROR;
1274 memcpy (&onoff, input, sizeof (uint32_t));
1275 memcpy (&keepalivetime, input + sizeof (uint32_t), sizeof (uint32_t));
1276 memcpy (&keepaliveinterval, input + 2 * sizeof (uint32_t), sizeof (uint32_t));
1277 ret = setsockopt (fd, SOL_SOCKET, SO_KEEPALIVE, &onoff, sizeof (uint32_t));
1279 gint errnum = errno;
1280 errnum = errno_to_WSA (errnum, __func__);
1281 WSASetLastError (errnum);
1282 return SOCKET_ERROR;
1285 #if defined(TCP_KEEPIDLE) && defined(TCP_KEEPINTVL)
1286 /* Values are in ms, but we need s */
1289 /* keepalivetime and keepaliveinterval are > 0 (checked in managed code) */
1290 rem = keepalivetime % 1000;
1291 keepalivetime /= 1000;
1292 if (keepalivetime == 0 || rem >= 500)
1294 ret = setsockopt (fd, SOL_TCP, TCP_KEEPIDLE, &keepalivetime, sizeof (uint32_t));
1296 rem = keepaliveinterval % 1000;
1297 keepaliveinterval /= 1000;
1298 if (keepaliveinterval == 0 || rem >= 500)
1299 keepaliveinterval++;
1300 ret = setsockopt (fd, SOL_TCP, TCP_KEEPINTVL, &keepaliveinterval, sizeof (uint32_t));
1303 gint errnum = errno;
1304 errnum = errno_to_WSA (errnum, __func__);
1305 WSASetLastError (errnum);
1306 return SOCKET_ERROR;
1315 buffer = g_memdup (input, i_len);
1318 ret = ioctl (fd, command, buffer);
1320 gint errnum = errno;
1321 DEBUG("%s: WSAIoctl error: %s", __func__,
1324 errnum = errno_to_WSA (errnum, __func__);
1325 WSASetLastError (errnum);
1328 return(SOCKET_ERROR);
1331 if (buffer == NULL) {
1334 /* We just copy the buffer to the output. Some ioctls
1335 * don't even output any data, but, well...
1337 * NB windows returns WSAEFAULT if o_len is too small
1339 i_len = (i_len > o_len) ? o_len : i_len;
1341 if (i_len > 0 && output != NULL) {
1342 memcpy (output, buffer, i_len);
1352 #ifndef PLATFORM_PORT_PROVIDES_IOCTLSOCKET
1353 int ioctlsocket(guint32 fd, gint32 command, gpointer arg)
1355 gpointer handle = GUINT_TO_POINTER (fd);
1358 if (startup_count == 0) {
1359 WSASetLastError (WSANOTINITIALISED);
1360 return(SOCKET_ERROR);
1363 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
1364 WSASetLastError (WSAENOTSOCK);
1365 return(SOCKET_ERROR);
1371 /* This works better than ioctl(...FIONBIO...)
1372 * on Linux (it causes connect to return
1373 * EINPROGRESS, but the ioctl doesn't seem to)
1375 ret = fcntl(fd, F_GETFL, 0);
1377 if (*(gboolean *)arg) {
1382 ret = fcntl(fd, F_SETFL, ret);
1385 #endif /* O_NONBLOCK */
1386 /* Unused in Mono */
1388 ret = ioctl (fd, command, arg);
1393 #if defined (PLATFORM_MACOSX)
1395 // ioctl (fd, FIONREAD, XXX) returns the size of
1396 // the UDP header as well on
1399 // Use getsockopt SO_NREAD instead to get the
1400 // right values for TCP and UDP.
1402 // ai_canonname can be null in some cases on darwin, where the runtime assumes it will
1403 // be the value of the ip buffer.
1405 socklen_t optlen = sizeof (int);
1406 ret = getsockopt (fd, SOL_SOCKET, SO_NREAD, arg, &optlen);
1408 ret = ioctl (fd, command, arg);
1413 WSASetLastError (WSAEINVAL);
1414 return(SOCKET_ERROR);
1418 gint errnum = errno;
1419 DEBUG ("%s: ioctl error: %s", __func__, strerror (errno));
1421 errnum = errno_to_WSA (errnum, __func__);
1422 WSASetLastError (errnum);
1424 return(SOCKET_ERROR);
1430 int _wapi_select(int nfds G_GNUC_UNUSED, fd_set *readfds, fd_set *writefds,
1431 fd_set *exceptfds, struct timeval *timeout)
1435 if (startup_count == 0) {
1436 WSASetLastError (WSANOTINITIALISED);
1437 return(SOCKET_ERROR);
1440 for (maxfd = FD_SETSIZE-1; maxfd >= 0; maxfd--) {
1441 if ((readfds && FD_ISSET (maxfd, readfds)) ||
1442 (writefds && FD_ISSET (maxfd, writefds)) ||
1443 (exceptfds && FD_ISSET (maxfd, exceptfds))) {
1449 WSASetLastError (WSAEINVAL);
1450 return(SOCKET_ERROR);
1454 ret = select(maxfd + 1, readfds, writefds, exceptfds,
1456 } while (ret == -1 && errno == EINTR &&
1457 !_wapi_thread_cur_apc_pending ());
1460 gint errnum = errno;
1461 DEBUG ("%s: select error: %s", __func__, strerror (errno));
1462 errnum = errno_to_WSA (errnum, __func__);
1463 WSASetLastError (errnum);
1465 return(SOCKET_ERROR);
1471 void _wapi_FD_CLR(guint32 fd, fd_set *set)
1473 gpointer handle = GUINT_TO_POINTER (fd);
1475 if (fd >= FD_SETSIZE) {
1476 WSASetLastError (WSAEINVAL);
1480 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
1481 WSASetLastError (WSAENOTSOCK);
1488 int _wapi_FD_ISSET(guint32 fd, fd_set *set)
1490 gpointer handle = GUINT_TO_POINTER (fd);
1492 if (fd >= FD_SETSIZE) {
1493 WSASetLastError (WSAEINVAL);
1497 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
1498 WSASetLastError (WSAENOTSOCK);
1502 return(FD_ISSET (fd, set));
1505 void _wapi_FD_SET(guint32 fd, fd_set *set)
1507 gpointer handle = GUINT_TO_POINTER (fd);
1509 if (fd >= FD_SETSIZE) {
1510 WSASetLastError (WSAEINVAL);
1514 if (_wapi_handle_type (handle) != WAPI_HANDLE_SOCKET) {
1515 WSASetLastError (WSAENOTSOCK);
1524 wsabuf_to_msghdr (WapiWSABuf *buffers, guint32 count, struct msghdr *hdr)
1528 memset (hdr, 0, sizeof (struct msghdr));
1529 hdr->msg_iovlen = count;
1530 hdr->msg_iov = g_new0 (struct iovec, count);
1531 for (i = 0; i < count; i++) {
1532 hdr->msg_iov [i].iov_base = buffers [i].buf;
1533 hdr->msg_iov [i].iov_len = buffers [i].len;
1538 msghdr_iov_free (struct msghdr *hdr)
1540 g_free (hdr->msg_iov);
1543 int WSARecv (guint32 fd, WapiWSABuf *buffers, guint32 count, guint32 *received,
1544 guint32 *flags, WapiOverlapped *overlapped,
1545 WapiOverlappedCB *complete)
1550 g_assert (overlapped == NULL);
1551 g_assert (complete == NULL);
1553 wsabuf_to_msghdr (buffers, count, &hdr);
1554 ret = _wapi_recvmsg (fd, &hdr, *flags);
1555 msghdr_iov_free (&hdr);
1557 if(ret == SOCKET_ERROR) {
1562 *flags = hdr.msg_flags;
1567 int WSASend (guint32 fd, WapiWSABuf *buffers, guint32 count, guint32 *sent,
1568 guint32 flags, WapiOverlapped *overlapped,
1569 WapiOverlappedCB *complete)
1574 g_assert (overlapped == NULL);
1575 g_assert (complete == NULL);
1577 wsabuf_to_msghdr (buffers, count, &hdr);
1578 ret = _wapi_sendmsg (fd, &hdr, flags);
1579 msghdr_iov_free (&hdr);
1581 if(ret == SOCKET_ERROR)
1588 #endif /* ifndef DISABLE_SOCKETS */