1 /* buf trp (transport) - buffered transport using the TCP one */
3 /* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include <string.h> /* memset */
14 #include "xbt/sysdep.h"
16 #include "gras/Transport/transport_private.h"
17 #include "gras/Msg/msg_interface.h" /* listener_close_socket */
19 /* FIXME maybe READV is sometime a good thing? */
27 #define MIN(a,b) ((a)<(b)?(a):(b))
30 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp_tcp, gras_trp,
31 "TCP buffered transport");
34 *** Specific socket part
38 int port; /* port on this side */
39 int peer_port; /* port on the other side */
40 char *peer_name; /* hostname of the other side */
41 char *peer_proc; /* process on the other side */
42 } s_gras_trp_tcp_sock_data_t, *gras_trp_tcp_sock_data_t;
44 typedef enum { buffering_buf, buffering_iov } buffering_kind;
49 int pos; /* for receive; not exchanged over the net */
53 struct gras_trp_bufdata_ {
55 gras_trp_buf_t in_buf;
56 gras_trp_buf_t out_buf;
60 xbt_dynar_t out_buf_v;
68 /*****************************/
69 /****[ SOCKET MANAGEMENT ]****/
70 /*****************************/
71 /* we exchange port number on client side on socket creation,
72 so we need to be able to talk right now. */
73 static XBT_INLINE void gras_trp_tcp_send(gras_socket_t sock,
75 unsigned long int size);
76 static int gras_trp_tcp_recv(gras_socket_t sock, char *data,
77 unsigned long int size);
80 static int _gras_tcp_proto_number(void);
83 void gras_trp_sock_socket_client(gras_trp_plugin_t ignored,
86 /*OUT*/gras_socket_t sock)
88 gras_trp_tcp_sock_data_t sockdata = xbt_new(s_gras_trp_tcp_sock_data_t,1);
89 sockdata->port = port;
90 sockdata->peer_proc = NULL;
91 sockdata->peer_port = port;
92 sockdata->peer_name = (char *) strdup(host ? host : "localhost");
93 sock->data = sockdata;
95 struct sockaddr_in addr;
97 struct in_addr *haddr;
98 int size = sock->buf_size;
99 uint32_t myport = htonl(((gras_trp_procdata_t)
101 (gras_trp_libdata_id))->myport);
103 sock->incoming = 1; /* TCP sockets are duplex'ed */
105 sock->sd = socket(AF_INET, SOCK_STREAM, 0);
108 THROWF(system_error, 0, "Failed to create socket: %s",
109 sock_errstr(sock_errno));
113 (sock->sd, SOL_SOCKET, SO_RCVBUF, (char *) &size, sizeof(size))
114 || setsockopt(sock->sd, SOL_SOCKET, SO_SNDBUF, (char *) &size,
116 XBT_VERB("setsockopt failed, cannot set buffer size: %s",
117 sock_errstr(sock_errno));
120 he = gethostbyname(sockdata->peer_name);
122 THROWF(system_error, 0, "Failed to lookup hostname %s: %s",
123 sockdata->peer_name, sock_errstr(sock_errno));
126 haddr = ((struct in_addr *) (he->h_addr_list)[0]);
128 memset(&addr, 0, sizeof(struct sockaddr_in));
129 memcpy(&addr.sin_addr, haddr, sizeof(struct in_addr));
130 addr.sin_family = AF_INET;
131 addr.sin_port = htons(sockdata->peer_port);
133 if (connect(sock->sd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
135 THROWF(system_error, 0,
136 "Failed to connect socket to %s:%d (%s)",
137 sockdata->peer_name, sockdata->peer_port, sock_errstr(sock_errno));
140 gras_trp_tcp_send(sock, (char *) &myport, sizeof(uint32_t));
141 XBT_DEBUG("peerport sent to %d", sockdata->peer_port);
143 XBT_VERB("Connect to %s:%d (sd=%d, port %d here)",
144 sockdata->peer_name, sockdata->peer_port, sock->sd, sockdata->port);
148 * gras_trp_sock_socket_server:
150 * Open a socket used to receive messages.
153 void gras_trp_sock_socket_server(gras_trp_plugin_t ignored,
157 int size = sock->buf_size;
159 struct sockaddr_in server;
161 gras_trp_tcp_sock_data_t sockdata = xbt_new(s_gras_trp_tcp_sock_data_t,1);
162 sockdata->port = port;
163 sockdata->peer_port = -1;
164 sockdata->peer_name = NULL;
165 sockdata->peer_proc = NULL;
168 sock->outgoing = 1; /* TCP => duplex mode */
170 server.sin_port = htons((u_short) sockdata->port);
171 server.sin_addr.s_addr = INADDR_ANY;
172 server.sin_family = AF_INET;
173 if ((sock->sd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
174 THROWF(system_error, 0, "Socket allocation failed: %s",
175 sock_errstr(sock_errno));
178 (sock->sd, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof(on)))
179 THROWF(system_error, 0,
180 "setsockopt failed, cannot condition the socket: %s",
181 sock_errstr(sock_errno));
183 if (setsockopt(sock->sd, SOL_SOCKET, SO_RCVBUF,
184 (char *) &size, sizeof(size))
185 || setsockopt(sock->sd, SOL_SOCKET, SO_SNDBUF,
186 (char *) &size, sizeof(size))) {
187 XBT_VERB("setsockopt failed, cannot set buffer size: %s",
188 sock_errstr(sock_errno));
191 if (bind(sock->sd, (struct sockaddr *) &server, sizeof(server)) == -1) {
193 THROWF(system_error, 0,
194 "Cannot bind to port %d: %s", sockdata->port,
195 sock_errstr(sock_errno));
198 XBT_DEBUG("Listen on port %d (sd=%d)", sockdata->port, sock->sd);
199 if (listen(sock->sd, 5) < 0) {
201 THROWF(system_error, 0,
202 "Cannot listen on port %d: %s",
203 sockdata->port, sock_errstr(sock_errno));
206 XBT_VERB("Openned a server socket on port %d (sd=%d)", sockdata->port,
210 static gras_socket_t gras_trp_sock_socket_accept(gras_socket_t sock)
214 struct sockaddr_in peer_in;
215 socklen_t peer_in_len = sizeof(peer_in);
222 socklen_t s = sizeof(int);
229 gras_trp_socket_new(1, &res);
231 sd = accept(sock->sd, (struct sockaddr *) &peer_in, &peer_in_len);
232 tmp_errno = sock_errno;
235 gras_socket_close(sock);
236 THROWF(system_error, 0,
237 "Accept failed (%s). Droping server socket.",
238 sock_errstr(tmp_errno));
241 if (_gras_tcp_proto_number()!=-1)
242 if (setsockopt(sd, _gras_tcp_proto_number(), TCP_NODELAY, (char *) &i,s))
245 if (setsockopt(sd, SOL_SOCKET, SO_KEEPALIVE, (char *) &i, s))
249 THROWF(system_error, 0,
250 "setsockopt failed, cannot condition the socket: %s",
251 sock_errstr(tmp_errno));
253 res->buf_size = sock->buf_size;
254 size = sock->buf_size;
255 if (setsockopt(sd, SOL_SOCKET, SO_RCVBUF, (char *) &size, sizeof(size))
256 || setsockopt(sd, SOL_SOCKET, SO_SNDBUF, (char *) &size,
258 XBT_VERB("setsockopt failed, cannot set buffer size: %s",
259 sock_errstr(tmp_errno));
261 res->plugin = sock->plugin;
262 res->incoming = sock->incoming;
263 res->outgoing = sock->outgoing;
266 gras_trp_tcp_sock_data_t sockdata = xbt_new(s_gras_trp_tcp_sock_data_t,1);
271 gras_trp_tcp_recv(res, (char *) &hisport, sizeof(hisport));
272 sockdata->peer_port = ntohl(hisport);
273 XBT_DEBUG("peerport %d received", sockdata->peer_port);
275 /* FIXME: Lock to protect inet_ntoa */
276 if (((struct sockaddr *) &peer_in)->sa_family != AF_INET) {
277 sockdata->peer_name = (char *) strdup("unknown");
279 struct in_addr addrAsInAddr;
282 addrAsInAddr.s_addr = peer_in.sin_addr.s_addr;
284 tmp = inet_ntoa(addrAsInAddr);
286 sockdata->peer_name = (char *) strdup(tmp);
288 sockdata->peer_name = (char *) strdup("unknown");
292 XBT_VERB("Accepted from %s:%d (sd=%d)", sockdata->peer_name, sockdata->peer_port, sd);
293 xbt_dynar_push(((gras_trp_procdata_t)
294 gras_libdata_by_id(gras_trp_libdata_id))->sockets, &res);
300 static void gras_trp_sock_socket_close(gras_socket_t sock)
304 return; /* close only once */
306 free(((gras_trp_tcp_sock_data_t)sock->data)->peer_name);
309 XBT_VERB("close tcp connection %d", sock->sd);
311 /* ask the listener to close the socket */
312 gras_msg_listener_close_socket(sock->sd);
315 /************************************/
316 /****[ end of SOCKET MANAGEMENT ]****/
317 /************************************/
320 /************************************/
321 /****[ UNBUFFERED DATA EXCHANGE ]****/
322 /************************************/
323 /* Temptation to merge this with file data exchange is great,
324 but doesn't work on BillWare (see tcp_write() in portable.h) */
325 static XBT_INLINE void gras_trp_tcp_send(gras_socket_t sock,
327 unsigned long int size)
333 status = tcp_write(sock->sd, data, (size_t) size);
334 XBT_DEBUG("write(%d, %p, %ld);", sock->sd, data, size);
338 if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
340 if (errno == EINTR || errno == EAGAIN)
344 THROWF(system_error, 0, "write(%d,%p,%ld) failed: %s",
345 sock->sd, data, size, sock_errstr(sock_errno));
352 THROWF(system_error, 0, "file descriptor closed (%s)",
353 sock_errstr(sock_errno));
358 static XBT_INLINE int
359 gras_trp_tcp_recv_withbuffer(gras_socket_t sock,
361 unsigned long int size,
362 unsigned long int bufsize)
368 data[0] = sock->recvd_val;
377 XBT_DEBUG("read(%d, %p, %ld) got %d so far (%s)",
378 sock->sd, data + got, bufsize, got,
379 hexa_str((unsigned char *) data, got, 0));
380 status = tcp_read(sock->sd, data + got, (size_t) bufsize);
383 THROWF(system_error, 0,
384 "read(%d,%p,%d) from %s:%d failed: %s; got %d so far",
385 sock->sd, data + got, (int) size, gras_socket_peer_name(sock),
386 gras_socket_peer_port(sock), sock_errstr(sock_errno), got);
388 XBT_DEBUG("Got %d more bytes (%s)", status,
389 hexa_str((unsigned char *) data + got, status, 0));
395 THROWF(system_error, errno,
396 "Socket closed by remote side (got %d bytes before this)",
404 static int gras_trp_tcp_recv(gras_socket_t sock,
405 char *data, unsigned long int size)
407 return gras_trp_tcp_recv_withbuffer(sock, data, size, size);
411 /*******************************************/
412 /****[ end of UNBUFFERED DATA EXCHANGE ]****/
413 /*******************************************/
415 /**********************************/
416 /****[ BUFFERED DATA EXCHANGE ]****/
417 /**********************************/
419 /* Make sure the data is sent */
420 static void gras_trp_bufiov_flush(gras_socket_t sock)
426 gras_trp_bufdata_t *data = sock->bufdata;
430 if (data->out == buffering_buf) {
431 if (XBT_LOG_ISENABLED(gras_trp_tcp, xbt_log_priority_debug))
432 hexa_print("chunk to send ",
433 (unsigned char *) data->out_buf.data, data->out_buf.size);
434 if ((data->out_buf.size - data->out_buf.pos) != 0) {
435 XBT_DEBUG("Send the chunk (size=%d) to %s:%d", data->out_buf.size,
436 gras_socket_peer_name(sock), gras_socket_peer_port(sock));
437 gras_trp_tcp_send(sock, data->out_buf.data, data->out_buf.size);
438 XBT_VERB("Chunk sent (size=%d)", data->out_buf.size);
439 data->out_buf.size = 0;
443 if (data->out == buffering_iov) {
444 XBT_DEBUG("Flush out iov");
445 vect = sock->bufdata->out_buf_v;
446 if ((size = xbt_dynar_length(vect))) {
447 XBT_DEBUG("Flush %d chunks out of this socket", size);
448 writev(sock->sd, xbt_dynar_get_ptr(vect, 0), size);
449 xbt_dynar_reset(vect);
451 data->out_buf.size = 0; /* reset the buffer containing non-stable data */
454 if (data->in == buffering_iov) {
455 XBT_DEBUG("Flush in iov");
456 vect = sock->bufdata->in_buf_v;
457 if ((size = xbt_dynar_length(vect))) {
458 XBT_DEBUG("Get %d chunks from of this socket", size);
459 readv(sock->sd, xbt_dynar_get_ptr(vect, 0), size);
460 xbt_dynar_reset(vect);
467 gras_trp_buf_send(gras_socket_t sock,
469 unsigned long int size, int stable_ignored)
472 gras_trp_bufdata_t *data = (gras_trp_bufdata_t *) sock->bufdata;
477 while (chunk_pos < size) {
478 /* size of the chunk to receive in that shot */
480 min(size - chunk_pos, data->buffsize - data->out_buf.size);
481 XBT_DEBUG("Set the chars %d..%ld into the buffer; size=%ld, ctn=(%s)",
482 (int) data->out_buf.size,
483 ((int) data->out_buf.size) + thissize - 1, size,
484 hexa_str((unsigned char *) chunk, thissize, 0));
486 memcpy(data->out_buf.data + data->out_buf.size, chunk + chunk_pos,
489 data->out_buf.size += thissize;
490 chunk_pos += thissize;
491 XBT_DEBUG("New pos = %d; Still to send = %ld of %ld; ctn sofar=(%s)",
492 data->out_buf.size, size - chunk_pos, size,
493 hexa_str((unsigned char *) chunk, chunk_pos, 0));
495 if (data->out_buf.size == data->buffsize) /* out of space. Flush it */
496 gras_trp_bufiov_flush(sock);
503 gras_trp_buf_recv(gras_socket_t sock, char *chunk, unsigned long int size)
506 gras_trp_bufdata_t *data = sock->bufdata;
507 long int chunk_pos = 0;
511 while (chunk_pos < size) {
512 /* size of the chunk to receive in that shot */
515 if (data->in_buf.size == data->in_buf.pos) { /* out of data. Get more */
517 XBT_DEBUG("Get more data (size=%d,bufsize=%d)",
518 (int) MIN(size - chunk_pos, data->buffsize),
519 (int) data->buffsize);
523 gras_trp_tcp_recv_withbuffer(sock, data->in_buf.data,
524 MIN(size - chunk_pos,
528 data->in_buf.pos = 0;
531 thissize = min(size - chunk_pos, data->in_buf.size - data->in_buf.pos);
532 memcpy(chunk + chunk_pos, data->in_buf.data + data->in_buf.pos,
535 data->in_buf.pos += thissize;
536 chunk_pos += thissize;
537 XBT_DEBUG("New pos = %d; Still to receive = %ld of %ld. Ctn so far=(%s)",
538 data->in_buf.pos, size - chunk_pos, size,
539 hexa_str((unsigned char *) chunk, chunk_pos, 0));
541 /* indicate on need to the gras_select function that there is more to read on this socket so that it does not actually select */
542 sock->moredata = (data->in_buf.size > data->in_buf.pos);
543 XBT_DEBUG("There is %smore data", (sock->moredata ? "" : "no "));
549 /*****************************************/
550 /****[ end of BUFFERED DATA EXCHANGE ]****/
551 /*****************************************/
553 /********************************/
554 /****[ VECTOR DATA EXCHANGE ]****/
555 /********************************/
558 gras_trp_iov_send(gras_socket_t sock,
559 const char *chunk, unsigned long int size, int stable)
562 gras_trp_bufdata_t *data = (gras_trp_bufdata_t *) sock->bufdata;
565 XBT_DEBUG("Buffer one chunk to be sent later (%s)",
566 hexa_str((char *) chunk, size, 0));
568 elm.iov_len = (size_t) size;
571 /* data storage won't last until flush. Save it in a buffer if we can */
573 if (size > data->buffsize - data->out_buf.size) {
575 flush the socket, using data in its actual storage */
576 elm.iov_base = (void *) chunk;
577 xbt_dynar_push(data->out_buf_v, &elm);
579 gras_trp_bufiov_flush(sock);
582 /* buffer big enough:
583 copy data into it, and chain it for upcoming writev */
584 memcpy(data->out_buf.data + data->out_buf.size, chunk, size);
585 elm.iov_base = (void *) (data->out_buf.data + data->out_buf.size);
586 data->out_buf.size += size;
588 xbt_dynar_push(data->out_buf_v, &elm);
592 /* data storage stable. Chain it */
594 elm.iov_base = (void *) chunk;
595 xbt_dynar_push(data->out_buf_v, &elm);
600 gras_trp_iov_recv(gras_socket_t sock, char *chunk, unsigned long int size)
604 XBT_DEBUG("Buffer one chunk to be received later");
605 elm.iov_base = (void *) chunk;
606 elm.iov_len = (size_t) size;
607 xbt_dynar_push(sock->bufdata->in_buf_v, &elm);
613 /***************************************/
614 /****[ end of VECTOR DATA EXCHANGE ]****/
615 /***************************************/
619 *** Prototypes of BUFFERED
622 void gras_trp_buf_socket_client(gras_trp_plugin_t self,
626 void gras_trp_buf_socket_server(gras_trp_plugin_t self,
629 gras_socket_t gras_trp_buf_socket_accept(gras_socket_t sock);
631 void gras_trp_buf_socket_close(gras_socket_t sd);
634 gras_socket_t gras_trp_buf_init_sock(gras_socket_t sock)
636 gras_trp_bufdata_t *data = xbt_new(gras_trp_bufdata_t, 1);
638 data->buffsize = 100 * 1024; /* 100k */
640 data->in_buf.size = 0;
641 data->in_buf.data = xbt_malloc(data->buffsize);
642 data->in_buf.pos = 0; /* useless, indeed, since size==pos */
644 data->out_buf.size = 0;
645 data->out_buf.data = xbt_malloc(data->buffsize);
646 data->out_buf.pos = data->out_buf.size;
649 data->in_buf_v = data->out_buf_v = NULL;
650 data->in_buf_v = xbt_dynar_new(sizeof(struct iovec), NULL);
651 data->out_buf_v = xbt_dynar_new(sizeof(struct iovec), NULL);
652 data->out = buffering_iov;
654 data->out = buffering_buf;
657 data->in = buffering_buf;
659 sock->bufdata = data;
664 *** Info about who's speaking
666 static int gras_trp_tcp_my_port(gras_socket_t s) {
667 gras_trp_tcp_sock_data_t sockdata = s->data;
668 return sockdata->port;
670 static int gras_trp_tcp_peer_port(gras_socket_t s) {
671 gras_trp_tcp_sock_data_t sockdata = s->data;
672 return sockdata->peer_port;
674 static const char* gras_trp_tcp_peer_name(gras_socket_t s) {
675 gras_trp_tcp_sock_data_t sockdata = s->data;
676 return sockdata->peer_name;
678 static const char* gras_trp_tcp_peer_proc(gras_socket_t s) {
679 gras_trp_tcp_sock_data_t sockdata = s->data;
680 return sockdata->peer_proc;
682 static void gras_trp_tcp_peer_proc_set(gras_socket_t s,char *name) {
683 gras_trp_tcp_sock_data_t sockdata = s->data;
684 sockdata->peer_proc = xbt_strdup(name);
690 void gras_trp_tcp_setup(gras_trp_plugin_t plug)
693 plug->my_port = gras_trp_tcp_my_port;
694 plug->peer_port = gras_trp_tcp_peer_port;
695 plug->peer_name = gras_trp_tcp_peer_name;
696 plug->peer_proc = gras_trp_tcp_peer_proc;
697 plug->peer_proc_set = gras_trp_tcp_peer_proc_set;
700 plug->socket_client = gras_trp_buf_socket_client;
701 plug->socket_server = gras_trp_buf_socket_server;
702 plug->socket_accept = gras_trp_buf_socket_accept;
703 plug->socket_close = gras_trp_buf_socket_close;
706 plug->send = gras_trp_iov_send;
708 plug->send = gras_trp_buf_send;
710 plug->recv = gras_trp_buf_recv;
712 plug->raw_send = gras_trp_tcp_send;
713 plug->raw_recv = gras_trp_tcp_recv;
715 plug->flush = gras_trp_bufiov_flush;
721 void gras_trp_buf_socket_client(gras_trp_plugin_t self,
724 /* OUT */ gras_socket_t sock)
727 gras_trp_sock_socket_client(NULL, host,port,sock);
728 gras_trp_buf_init_sock(sock);
732 * gras_trp_buf_socket_server:
734 * Open a socket used to receive messages.
736 void gras_trp_buf_socket_server(gras_trp_plugin_t self,
738 /* OUT */ gras_socket_t sock)
741 gras_trp_sock_socket_server(NULL, port, sock);
742 gras_trp_buf_init_sock(sock);
745 gras_socket_t gras_trp_buf_socket_accept(gras_socket_t sock)
747 return gras_trp_buf_init_sock(gras_trp_sock_socket_accept(sock));
750 void gras_trp_buf_socket_close(gras_socket_t sock)
752 gras_trp_bufdata_t *data = sock->bufdata;
754 if (data->in_buf.size != data->in_buf.pos) {
755 XBT_WARN("Socket closed, but %d bytes were unread (size=%d,pos=%d)",
756 data->in_buf.size - data->in_buf.pos,
757 data->in_buf.size, data->in_buf.pos);
759 free(data->in_buf.data);
761 if (data->out_buf.size != data->out_buf.pos) {
762 XBT_DEBUG("Flush the socket before closing (in=%d,out=%d)",
763 data->in_buf.size, data->out_buf.size);
764 gras_trp_bufiov_flush(sock);
766 free(data->out_buf.data);
769 if (data->in_buf_v) {
770 if (!xbt_dynar_is_empty(data->in_buf_v))
771 XBT_WARN("Socket closed, but some bytes were unread");
772 xbt_dynar_free(&data->in_buf_v);
774 if (data->out_buf_v) {
775 if (!xbt_dynar_is_empty(data->out_buf_v)) {
776 XBT_DEBUG("Flush the socket before closing");
777 gras_trp_bufiov_flush(sock);
779 xbt_dynar_free(&data->out_buf_v);
784 gras_trp_sock_socket_close(sock);
787 /****************************/
788 /****[ HELPER FUNCTIONS ]****/
789 /****************************/
792 * Returns the tcp protocol number from the network protocol data base, or -1 if not found
794 * getprotobyname() is not thread safe. We need to lock it.
796 static int _gras_tcp_proto_number(void)
798 struct protoent *fetchedEntry;
799 static int returnValue = 0;
801 if (returnValue == 0) {
802 fetchedEntry = getprotobyname("tcp");
803 if (fetchedEntry == NULL) {
804 XBT_VERB("getprotobyname(tcp) gave NULL");
807 returnValue = fetchedEntry->p_proto;
814 #ifdef HAVE_WINSOCK_H
815 #define RETSTR( x ) case x: return #x
817 const char *gras_wsa_err2string(int err)
826 RETSTR(WSAEWOULDBLOCK);
827 RETSTR(WSAEINPROGRESS);
830 RETSTR(WSAEDESTADDRREQ);
832 RETSTR(WSAEPROTOTYPE);
833 RETSTR(WSAENOPROTOOPT);
834 RETSTR(WSAEPROTONOSUPPORT);
835 RETSTR(WSAESOCKTNOSUPPORT);
836 RETSTR(WSAEOPNOTSUPP);
837 RETSTR(WSAEPFNOSUPPORT);
838 RETSTR(WSAEAFNOSUPPORT);
839 RETSTR(WSAEADDRINUSE);
840 RETSTR(WSAEADDRNOTAVAIL);
842 RETSTR(WSAENETUNREACH);
843 RETSTR(WSAENETRESET);
844 RETSTR(WSAECONNABORTED);
845 RETSTR(WSAECONNRESET);
849 RETSTR(WSAESHUTDOWN);
850 RETSTR(WSAETOOMANYREFS);
851 RETSTR(WSAETIMEDOUT);
852 RETSTR(WSAECONNREFUSED);
854 RETSTR(WSAENAMETOOLONG);
855 RETSTR(WSAEHOSTDOWN);
856 RETSTR(WSAEHOSTUNREACH);
857 RETSTR(WSAENOTEMPTY);
863 RETSTR(WSASYSNOTREADY);
864 RETSTR(WSAVERNOTSUPPORTED);
865 RETSTR(WSANOTINITIALISED);
870 RETSTR(WSAECANCELLED);
871 RETSTR(WSAEINVALIDPROCTABLE);
872 RETSTR(WSAEINVALIDPROVIDER);
873 RETSTR(WSASYSCALLFAILURE);
874 RETSTR(WSASERVICE_NOT_FOUND);
875 RETSTR(WSATYPE_NOT_FOUND);
876 RETSTR(WSA_E_NO_MORE);
877 RETSTR(WSA_E_CANCELLED);
879 #endif /* HAVE_WINSOCK2 */
881 RETSTR(WSAHOST_NOT_FOUND);
882 RETSTR(WSATRY_AGAIN);
883 RETSTR(WSANO_RECOVERY);
886 return "unknown WSA error";
888 #endif /* HAVE_WINSOCK_H */
890 /***********************************/
891 /****[ end of HELPER FUNCTIONS ]****/
892 /***********************************/