2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2009 Hiroyuki Yamamoto and the Claws Mail team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #if (defined (_XOPEN_SOURCE) && !defined (_BSD_SOURCE))
29 #include <glib/gi18n.h>
32 #include <sys/types.h>
34 # include <winsock2.h>
36 # define EINPROGRESS WSAEINPROGRESS
41 # include <sys/wait.h>
43 # include <sys/socket.h>
44 # include <sys/stat.h>
46 # include <netinet/in.h>
47 # include <arpa/inet.h>
50 #endif /* G_OS_WIN32 */
60 # include <sys/select.h>
71 #error USE_GIO is currently not supported
81 typedef gint (*SockAddrFunc) (GList *addr_list,
84 typedef struct _SockConnectData SockConnectData;
85 typedef struct _SockLookupData SockLookupData;
86 typedef struct _SockAddrData SockAddrData;
87 typedef struct _SockSource SockSource;
89 struct _SockConnectData {
95 SockLookupData *lookup_data;
100 gchar *canonical_name;
103 struct _SockLookupData {
112 gchar *canonical_name;
115 struct _SockAddrData {
120 struct sockaddr *addr;
128 static guint io_timeout = 60;
130 static GList *sock_connect_data_list = NULL;
132 static gboolean sock_prepare (GSource *source,
134 static gboolean sock_check (GSource *source);
135 static gboolean sock_dispatch (GSource *source,
136 GSourceFunc callback,
139 GSourceFuncs sock_watch_funcs = {
146 static gint sock_connect_with_timeout (gint sock,
147 const struct sockaddr *serv_addr,
152 static gint sock_connect_by_hostname (gint sock,
153 const gchar *hostname,
156 static gint sock_connect_by_getaddrinfo (const gchar *hostname,
160 static SockInfo *sockinfo_from_fd(const gchar *hostname,
163 static void sock_address_list_free (GList *addr_list);
165 static gboolean sock_connect_async_cb (GIOChannel *source,
166 GIOCondition condition,
168 static gint sock_connect_async_get_address_info_cb
172 static gint sock_connect_address_list_async (SockConnectData *conn_data);
174 static gboolean sock_get_address_info_async_cb (GIOChannel *source,
175 GIOCondition condition,
177 static SockLookupData *sock_get_address_info_async
178 (const gchar *hostname,
182 static gint sock_get_address_info_async_cancel (SockLookupData *lookup_data);
191 result = WSAStartup(MAKEWORD(2, 2), &wsadata);
192 if (result != NO_ERROR) {
193 g_warning("WSAStartup() failed\n");
200 gint sock_cleanup(void)
208 gint sock_set_io_timeout(guint sec)
214 void refresh_resolvers(void)
217 static time_t resolv_conf_changed = (time_t)NULL;
220 /* This makes the glibc re-read resolv.conf, if it changed
221 * since our startup. Maybe that should be #ifdef'ed, I don't
222 * know if it'd work on BSDs.
223 * Why doesn't the glibc do it by itself?
225 if (stat("/etc/resolv.conf", &s) == 0) {
226 if (s.st_mtime > resolv_conf_changed) {
227 resolv_conf_changed = s.st_mtime;
231 we'll have bigger problems. */
236 #define SOCKET_IS_VALID(s) ((s) != INVALID_SOCKET)
238 #define SOCKET_IS_VALID(s) TRUE
241 /* Due to the fact that socket under Windows are not represented by
242 standard file descriptors, we sometimes need to check whether a
243 given file descriptor is actually a socket. This is done by
244 testing for an error. Returns true under W32 if FD is a socket. */
245 static int fd_is_w32_socket(gint fd)
249 gint retval = sizeof(optval);
251 return !getsockopt(fd, SOL_SOCKET, SO_TYPE, (char*)&optval, &retval);
257 gint fd_connect_inet(gushort port)
260 struct sockaddr_in addr;
262 sock = socket(AF_INET, SOCK_STREAM, 0);
263 if (!SOCKET_IS_VALID(sock)) {
265 debug_print("fd_connect_inet(): socket() failed: %d\n",
268 perror("fd_connect_inet(): socket");
273 memset(&addr, 0, sizeof(addr));
274 addr.sin_family = AF_INET;
275 addr.sin_port = htons(port);
276 addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
278 if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
285 gint fd_open_inet(gushort port)
288 struct sockaddr_in addr;
291 sock = socket(AF_INET, SOCK_STREAM, 0);
292 if (!SOCKET_IS_VALID(sock)) {
294 g_warning("fd_open_inet(): socket() failed: %d\n",
297 perror("fd_open_inet(): socket");
303 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&val,
305 perror("setsockopt");
310 memset(&addr, 0, sizeof(addr));
311 addr.sin_family = AF_INET;
312 addr.sin_port = htons(port);
313 addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
315 if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
321 if (listen(sock, 1) < 0) {
330 gint fd_connect_unix(const gchar *path)
334 struct sockaddr_un addr;
336 sock = socket(PF_UNIX, SOCK_STREAM, 0);
338 perror("sock_connect_unix(): socket");
342 memset(&addr, 0, sizeof(addr));
343 addr.sun_family = AF_UNIX;
344 strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
346 if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
357 gint fd_open_unix(const gchar *path)
361 struct sockaddr_un addr;
363 sock = socket(PF_UNIX, SOCK_STREAM, 0);
366 perror("sock_open_unix(): socket");
370 memset(&addr, 0, sizeof(addr));
371 addr.sun_family = AF_UNIX;
372 strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
374 if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
375 gchar *buf = g_strdup_printf("can't bind to %s", path);
382 if (listen(sock, 1) < 0) {
383 gchar *buf = g_strdup_printf("can't listen on %s", path);
396 gint fd_accept(gint sock)
398 struct sockaddr_in caddr;
401 caddr_len = sizeof(caddr);
402 return accept(sock, (struct sockaddr *)&caddr, &caddr_len);
406 static gint set_nonblocking_mode(gint fd, gboolean nonblock)
411 flags = fcntl(fd, F_GETFL, 0);
420 flags &= ~O_NONBLOCK;
422 return fcntl(fd, F_SETFL, flags);
428 gint sock_set_nonblocking_mode(SockInfo *sock, gboolean nonblock)
430 g_return_val_if_fail(sock != NULL, -1);
432 return set_nonblocking_mode(sock->sock, nonblock);
435 static gboolean is_nonblocking_mode(gint fd)
440 flags = fcntl(fd, F_GETFL, 0);
446 return ((flags & O_NONBLOCK) != 0);
452 gboolean sock_is_nonblocking_mode(SockInfo *sock)
454 g_return_val_if_fail(sock != NULL, FALSE);
456 return is_nonblocking_mode(sock->sock);
460 static gboolean sock_prepare(GSource *source, gint *timeout)
466 static gboolean sock_check(GSource *source)
468 SockInfo *sock = ((SockSource *)source)->sock;
469 struct timeval timeout = {0, 0};
471 GIOCondition condition = sock->condition;
473 if (!sock || !sock->sock)
477 FD_SET(sock->sock, &fds);
479 select(sock->sock + 1,
480 (condition & G_IO_IN) ? &fds : NULL,
481 (condition & G_IO_OUT) ? &fds : NULL,
484 return FD_ISSET(sock->sock, &fds) != 0;
487 static gboolean sock_dispatch(GSource *source, GSourceFunc callback,
490 SockInfo *sock = ((SockSource *)source)->sock;
492 if (!sock || !sock->callback || !sock->data)
495 return sock->callback(sock, sock->condition, sock->data);
498 static gboolean sock_watch_cb(GIOChannel *source, GIOCondition condition,
501 SockInfo *sock = (SockInfo *)data;
503 if ((condition & sock->condition) == 0)
506 return sock->callback(sock, sock->condition, sock->data);
509 guint sock_add_watch(SockInfo *sock, GIOCondition condition, SockFunc func,
515 sock->callback = func;
516 sock->condition = condition;
522 GSource *source = g_source_new(&sock_watch_funcs,
524 ((SockSource *) source)->sock = sock;
525 g_source_set_priority(source, G_PRIORITY_DEFAULT);
526 g_source_set_can_recurse(source, FALSE);
527 sock->g_source = g_source_attach(source, NULL);
528 g_source_unref (source); /* Refcount back down to 1 */
529 return sock->g_source;
533 return g_io_add_watch(sock->sock_ch, condition, sock_watch_cb, sock);
536 static gint fd_check_io(gint fd, GIOCondition cond)
538 struct timeval timeout;
541 if (is_nonblocking_mode(fd))
544 timeout.tv_sec = io_timeout;
550 if (cond == G_IO_IN) {
551 select(fd + 1, &fds, NULL, NULL,
552 io_timeout > 0 ? &timeout : NULL);
554 select(fd + 1, NULL, &fds, NULL,
555 io_timeout > 0 ? &timeout : NULL);
558 if (FD_ISSET(fd, &fds)) {
561 g_warning("Socket IO timeout\n");
567 static sigjmp_buf jmpenv;
569 static void timeout_handler(gint sig)
571 siglongjmp(jmpenv, 1);
575 static gint sock_connect_with_timeout(gint sock,
576 const struct sockaddr *serv_addr,
582 void (*prev_handler)(gint);
585 prev_handler = signal(SIGALRM, timeout_handler);
586 if (sigsetjmp(jmpenv, 1)) {
588 signal(SIGALRM, prev_handler);
595 ret = connect(sock, serv_addr, addrlen);
599 signal(SIGALRM, prev_handler);
605 struct hostent *my_gethostbyname(const gchar *hostname)
609 void (*prev_handler)(gint);
612 prev_handler = signal(SIGALRM, timeout_handler);
613 if (sigsetjmp(jmpenv, 1)) {
615 signal(SIGALRM, prev_handler);
616 g_printerr("%s: host lookup timed out.\n", hostname);
623 if ((hp = gethostbyname(hostname)) == NULL) {
626 signal(SIGALRM, prev_handler);
628 g_printerr("%s: unknown host.\n", hostname);
635 signal(SIGALRM, prev_handler);
642 static gint my_inet_aton(const gchar *hostname, struct in_addr *inp)
645 return inet_aton(hostname, inp);
650 inaddr = inet_addr(hostname);
652 memcpy(inp, &inaddr, sizeof(inaddr));
659 #endif /* HAVE_INET_ATON */
662 static gint sock_connect_by_hostname(gint sock, const gchar *hostname,
666 struct sockaddr_in ad;
668 memset(&ad, 0, sizeof(ad));
669 ad.sin_family = AF_INET;
670 ad.sin_port = htons(port);
674 if (!my_inet_aton(hostname, &ad.sin_addr)) {
675 if ((hp = my_gethostbyname(hostname)) == NULL) {
676 g_printerr("%s: unknown host.\n", hostname);
681 if (hp->h_length != 4 && hp->h_length != 8) {
682 g_printerr("illegal address length received for host %s\n", hostname);
687 memcpy(&ad.sin_addr, hp->h_addr, hp->h_length);
690 return sock_connect_with_timeout(sock, (struct sockaddr *)&ad,
691 sizeof(ad), io_timeout);
695 static gint sock_connect_by_getaddrinfo(const gchar *hostname, gushort port)
697 gint sock = -1, gai_error;
698 struct addrinfo hints, *res, *ai;
703 memset(&hints, 0, sizeof(hints));
704 /* hints.ai_flags = AI_CANONNAME; */
705 hints.ai_family = AF_UNSPEC;
706 hints.ai_socktype = SOCK_STREAM;
707 hints.ai_protocol = IPPROTO_TCP;
709 /* convert port from integer to string. */
710 g_snprintf(port_str, sizeof(port_str), "%d", port);
712 if ((gai_error = getaddrinfo(hostname, port_str, &hints, &res)) != 0) {
713 g_printerr("getaddrinfo for %s:%s failed: %s\n",
714 hostname, port_str, gai_strerror(gai_error));
718 for (ai = res; ai != NULL; ai = ai->ai_next) {
719 sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
723 if (sock_connect_with_timeout
724 (sock, ai->ai_addr, ai->ai_addrlen, io_timeout) == 0)
740 SockInfo *sock_connect(const gchar *hostname, gushort port)
749 if ((sock = sock_connect_by_getaddrinfo(hostname, port)) < 0)
753 if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
754 g_warning("socket() failed: %d\n", WSAGetLastError());
756 if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
758 #endif /* G_OS_WIN32 */
762 if (sock_connect_by_hostname(sock, hostname, port) < 0) {
763 if (errno != 0) perror("connect");
769 return sockinfo_from_fd(hostname, port, sock);
773 static void sock_address_list_free(GList *addr_list)
777 for (cur = addr_list; cur != NULL; cur = cur->next) {
778 SockAddrData *addr_data = (SockAddrData *)cur->data;
779 g_free(addr_data->addr);
783 g_list_free(addr_list);
786 /* asynchronous TCP connection */
788 static gboolean sock_connect_async_cb(GIOChannel *source,
789 GIOCondition condition, gpointer data)
791 SockConnectData *conn_data = (SockConnectData *)data;
797 if (conn_data->io_tag == 0 && conn_data->channel == NULL)
800 fd = g_io_channel_unix_get_fd(source);
802 conn_data->io_tag = 0;
803 conn_data->channel = NULL;
804 g_io_channel_unref(source);
807 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &val, &len) < 0) {
808 perror("getsockopt");
810 sock_connect_address_list_async(conn_data);
816 sock_connect_address_list_async(conn_data);
820 sockinfo = g_new0(SockInfo, 1);
823 sockinfo->sock_ch = g_io_channel_unix_new(fd);
825 sockinfo->sock_ch = g_io_channel_win32_new_socket(fd);
827 sockinfo->hostname = g_strdup(conn_data->hostname);
828 sockinfo->port = conn_data->port;
829 sockinfo->state = CONN_ESTABLISHED;
830 sockinfo->canonical_name = g_strdup(conn_data->canonical_name);
832 conn_data->func(sockinfo, conn_data->data);
834 sock_connect_async_cancel(conn_data->id);
839 static gint sock_connect_async_get_address_info_cb(GList *addr_list,
842 SockConnectData *conn_data = (SockConnectData *)data;
844 conn_data->addr_list = addr_list;
845 conn_data->cur_addr = addr_list;
846 if (conn_data->lookup_data) {
847 conn_data->canonical_name = conn_data->lookup_data->canonical_name;
848 conn_data->lookup_data->canonical_name = NULL;
849 conn_data->lookup_data = NULL;
851 return sock_connect_address_list_async(conn_data);
854 gint sock_connect_async(const gchar *hostname, gushort port,
855 SockConnectFunc func, gpointer data)
858 SockConnectData *conn_data;
860 conn_data = g_new0(SockConnectData, 1);
861 conn_data->id = id++;
862 conn_data->hostname = g_strdup(hostname);
863 conn_data->port = port;
864 conn_data->addr_list = NULL;
865 conn_data->cur_addr = NULL;
866 conn_data->io_tag = 0;
867 conn_data->func = func;
868 conn_data->data = data;
870 conn_data->lookup_data = sock_get_address_info_async
871 (hostname, port, sock_connect_async_get_address_info_cb,
874 if (conn_data->lookup_data == NULL) {
875 g_free(conn_data->hostname);
880 sock_connect_data_list = g_list_append(sock_connect_data_list,
883 return conn_data->id;
886 gint sock_connect_async_cancel(gint id)
888 SockConnectData *conn_data = NULL;
891 for (cur = sock_connect_data_list; cur != NULL; cur = cur->next) {
892 if (((SockConnectData *)cur->data)->id == id) {
893 conn_data = (SockConnectData *)cur->data;
899 sock_connect_data_list = g_list_remove(sock_connect_data_list,
902 if (conn_data->lookup_data)
903 sock_get_address_info_async_cancel
904 (conn_data->lookup_data);
906 if (conn_data->io_tag > 0)
907 g_source_remove(conn_data->io_tag);
908 if (conn_data->channel) {
910 g_io_channel_shutdown(conn_data->channel, TRUE, &err);
913 g_io_channel_unref(conn_data->channel);
916 sock_address_list_free(conn_data->addr_list);
917 g_free(conn_data->canonical_name);
918 g_free(conn_data->hostname);
921 g_warning("sock_connect_async_cancel: id %d not found.\n", id);
928 static gint sock_connect_address_list_async(SockConnectData *conn_data)
930 SockAddrData *addr_data;
933 for (; conn_data->cur_addr != NULL;
934 conn_data->cur_addr = conn_data->cur_addr->next) {
935 addr_data = (SockAddrData *)conn_data->cur_addr->data;
937 if ((sock = socket(addr_data->family, addr_data->socktype,
938 addr_data->protocol)) < 0) {
943 set_nonblocking_mode(sock, TRUE);
945 if (connect(sock, addr_data->addr, addr_data->addr_len) < 0) {
946 if (EINPROGRESS == errno) {
956 if (conn_data->cur_addr == NULL) {
957 g_warning("sock_connect_address_list_async: "
958 "connection to %s:%d failed\n",
959 conn_data->hostname, conn_data->port);
960 conn_data->func(NULL, conn_data->data);
961 sock_connect_async_cancel(conn_data->id);
965 conn_data->cur_addr = conn_data->cur_addr->next;
968 conn_data->channel = g_io_channel_unix_new(sock);
970 conn_data->channel = g_io_channel_win32_new_socket(sock);
972 conn_data->io_tag = g_io_add_watch(conn_data->channel, G_IO_IN|G_IO_OUT,
973 sock_connect_async_cb, conn_data);
978 /* asynchronous DNS lookup */
980 static gboolean sock_get_address_info_async_cb(GIOChannel *source,
981 GIOCondition condition,
984 SockLookupData *lookup_data = (SockLookupData *)data;
985 GList *addr_list = NULL;
986 SockAddrData *addr_data;
989 struct sockaddr *addr;
990 gchar *canonical_name = NULL;
994 g_io_channel_set_encoding(source, NULL, &err);
996 g_warning("can unset encoding: %s\n", err->message);
1000 g_io_channel_set_buffered(source, FALSE);
1001 if (g_io_channel_read_chars(source, &len, sizeof(len),
1002 &bytes_read, &err) == G_IO_STATUS_NORMAL) {
1004 g_warning("g_io_channel_read_chars: %s\n", err->message);
1008 if (bytes_read == sizeof(len) && len > 0) {
1011 canonical_name = g_malloc0(len + 1);
1012 cur = canonical_name;
1014 if (g_io_channel_read_chars(source, cur, todo,
1015 &bytes_read, &err) != G_IO_STATUS_NORMAL) {
1017 g_warning("canonical name not read %s\n", err->message);
1018 g_free(canonical_name);
1019 canonical_name = NULL;
1028 if (bytes_read == 0) {
1029 g_warning("canonical name not read\n");
1030 g_free(canonical_name);
1031 canonical_name = NULL;
1038 if (g_io_channel_read_chars(source, (gchar *)ai_member,
1039 sizeof(ai_member), &bytes_read, &err)
1040 != G_IO_STATUS_NORMAL) {
1042 g_warning("g_io_channel_read_chars: addr len %s\n", err->message);
1049 if (bytes_read == 0 || bytes_read != sizeof(ai_member))
1052 if (ai_member[0] == AF_UNSPEC) {
1053 g_warning("DNS lookup failed\n");
1057 addr = g_malloc(ai_member[3]);
1058 if (g_io_channel_read_chars(source, (gchar *)addr, ai_member[3],
1060 != G_IO_STATUS_NORMAL) {
1062 g_warning("g_io_channel_read_chars: addr data read %s\n", err->message);
1070 if (bytes_read != ai_member[3]) {
1071 g_warning("sock_get_address_info_async_cb: "
1072 "incomplete address data\n");
1077 addr_data = g_new0(SockAddrData, 1);
1078 addr_data->family = ai_member[0];
1079 addr_data->socktype = ai_member[1];
1080 addr_data->protocol = ai_member[2];
1081 addr_data->addr_len = ai_member[3];
1082 addr_data->addr = addr;
1084 addr_list = g_list_append(addr_list, addr_data);
1087 g_io_channel_shutdown(source, TRUE, &err);
1090 g_io_channel_unref(source);
1093 /* FIXME: We would need to cancel the thread. */
1095 kill(lookup_data->child_pid, SIGKILL);
1096 waitpid(lookup_data->child_pid, NULL, 0);
1098 lookup_data->canonical_name = canonical_name;
1100 lookup_data->func(addr_list, lookup_data->data);
1102 g_free(lookup_data->canonical_name);
1103 g_free(lookup_data->hostname);
1104 g_free(lookup_data);
1110 /* For better readability we use a separate function to implement the
1111 child code of sock_get_address_info_async. Note, that under W32
1112 this is actually not a child but a thread and this is the reason
1113 why we pass only a void pointer. */
1114 static void address_info_async_child(void *opaque)
1116 SockLookupData *parm = opaque;
1119 struct addrinfo hints, *res, *ai;
1123 gchar **addr_list_p;
1124 struct sockaddr_in ad;
1126 gint ai_member[4] = {AF_UNSPEC, 0, 0, 0};
1129 close(parm->pipe_fds[0]);
1130 parm->pipe_fds[0] = -1;
1134 memset(&hints, 0, sizeof(hints));
1135 hints.ai_flags = AI_CANONNAME;
1136 hints.ai_family = AF_UNSPEC;
1137 hints.ai_socktype = SOCK_STREAM;
1138 hints.ai_protocol = IPPROTO_TCP;
1140 g_snprintf(port_str, sizeof(port_str), "%d", parm->port);
1142 gai_err = getaddrinfo(parm->hostname, port_str, &hints, &res);
1145 g_warning("getaddrinfo for %s:%s failed: %s\n",
1146 parm->hostname, port_str, gai_strerror(gai_err));
1147 fd_write_all(parm->pipe_fds[1], &len,
1149 fd_write_all(parm->pipe_fds[1], (gchar *)ai_member,
1151 close(parm->pipe_fds[1]);
1152 parm->pipe_fds[1] = -1;
1161 if (res->ai_canonname && strlen(res->ai_canonname) < 255) {
1162 gchar len = strlen(res->ai_canonname);
1163 fd_write_all(parm->pipe_fds[1], &len,
1165 fd_write_all(parm->pipe_fds[1], res->ai_canonname,
1169 fd_write_all(parm->pipe_fds[1], &len,
1174 fd_write_all(parm->pipe_fds[1], &len,
1178 for (ai = res; ai != NULL; ai = ai->ai_next) {
1179 ai_member[0] = ai->ai_family;
1180 ai_member[1] = ai->ai_socktype;
1181 ai_member[2] = ai->ai_protocol;
1182 ai_member[3] = ai->ai_addrlen;
1184 fd_write_all(parm->pipe_fds[1], (gchar *)ai_member,
1186 fd_write_all(parm->pipe_fds[1], (gchar *)ai->ai_addr,
1193 hp = my_gethostbyname(parm->hostname);
1194 if (hp == NULL || hp->h_addrtype != AF_INET) {
1196 fd_write_all(parm->pipe_fds[1], &len,
1198 fd_write_all(parm->pipe_fds[1], (gchar *)ai_member,
1200 close(parm->pipe_fds[1]);
1201 parm->pipe_fds[1] = -1;
1209 ai_member[0] = AF_INET;
1210 ai_member[1] = SOCK_STREAM;
1211 ai_member[2] = IPPROTO_TCP;
1212 ai_member[3] = sizeof(ad);
1214 memset(&ad, 0, sizeof(ad));
1215 ad.sin_family = AF_INET;
1216 ad.sin_port = htons(parm->port);
1218 if (hp->h_name && strlen(hp->h_name) < 255) {
1219 gchar len = strlen(hp->h_name);
1220 fd_write_all(parm->pipe_fds[1], &len,
1222 fd_write_all(parm->pipe_fds[1], hp->h_name,
1226 fd_write_all(parm->pipe_fds[1], &len,
1229 for (addr_list_p = hp->h_addr_list; *addr_list_p != NULL;
1231 memcpy(&ad.sin_addr, *addr_list_p, hp->h_length);
1232 fd_write_all(parm->pipe_fds[1], (gchar *)ai_member,
1234 fd_write_all(parm->pipe_fds[1], (gchar *)&ad, sizeof(ad));
1238 close(parm->pipe_fds[1]);
1239 parm->pipe_fds[1] = -1;
1248 static SockLookupData *sock_get_address_info_async(const gchar *hostname,
1253 SockLookupData *lookup_data = NULL;
1255 refresh_resolvers();
1257 lookup_data = g_new0(SockLookupData, 1);
1258 lookup_data->hostname = g_strdup(hostname);
1259 lookup_data->func = func;
1260 lookup_data->data = data;
1261 lookup_data->port = port;
1262 lookup_data->child_pid = (pid_t)(-1);
1263 lookup_data->pipe_fds[0] = -1;
1264 lookup_data->pipe_fds[1] = -1;
1266 if (pipe(lookup_data->pipe_fds) < 0) {
1269 g_free (lookup_data->hostname);
1270 g_free (lookup_data);
1275 if ((lookup_data->child_pid = fork()) < 0) {
1278 g_free (lookup_data->hostname);
1279 g_free (lookup_data);
1283 if (lookup_data->child_pid == 0) {
1284 /* Child process. */
1285 address_info_async_child (lookup_data);
1286 g_assert_not_reached ();
1288 /* Parent process. */
1289 close(lookup_data->pipe_fds[1]);
1290 lookup_data->pipe_fds[1] = -1;
1291 #endif /*!G_OS_WIN32 */
1294 lookup_data->channel = g_io_channel_unix_new(lookup_data->pipe_fds[0]);
1296 lookup_data->channel = g_io_channel_win32_new_fd(lookup_data->pipe_fds[0]);
1298 lookup_data->io_tag = g_io_add_watch(lookup_data->channel, G_IO_IN,
1299 sock_get_address_info_async_cb,
1302 lookup_data->child_pid = _beginthread(
1303 address_info_async_child, 0, lookup_data);
1309 static gint sock_get_address_info_async_cancel(SockLookupData *lookup_data)
1311 if (lookup_data->io_tag > 0)
1312 g_source_remove(lookup_data->io_tag);
1313 if (lookup_data->channel) {
1315 g_io_channel_shutdown(lookup_data->channel, TRUE, &err);
1319 g_io_channel_unref(lookup_data->channel);
1322 if (lookup_data->child_pid > 0) {
1324 /* FIXME: Need a way to cancel the thread. */
1326 kill(lookup_data->child_pid, SIGKILL);
1327 waitpid(lookup_data->child_pid, NULL, 0);
1331 g_free(lookup_data->canonical_name);
1332 g_free(lookup_data->hostname);
1333 g_free(lookup_data);
1339 static SockInfo *sockinfo_from_fd(const gchar *hostname,
1345 sockinfo = g_new0(SockInfo, 1);
1346 sockinfo->sock = sock;
1348 sockinfo->sock_ch = g_io_channel_unix_new(sock);
1350 sockinfo->sock_ch = g_io_channel_win32_new_socket(sock);
1352 sockinfo->hostname = g_strdup(hostname);
1353 sockinfo->port = port;
1354 sockinfo->state = CONN_ESTABLISHED;
1359 static gint fd_read(gint fd, gchar *buf, gint len)
1361 if (fd_check_io(fd, G_IO_IN) < 0)
1364 if (fd_is_w32_socket(fd))
1365 return recv(fd, buf, len, 0);
1366 return read(fd, buf, len);
1370 static gint ssl_read(gnutls_session ssl, gchar *buf, gint len)
1374 if (gnutls_record_check_pending(ssl) == 0) {
1375 if (fd_check_io(GPOINTER_TO_INT(gnutls_transport_get_ptr(ssl)), G_IO_IN) < 0)
1380 r = gnutls_record_recv(ssl, buf, len);
1385 case 0: /* closed connection */
1388 case GNUTLS_E_REHANDSHAKE:
1390 r = gnutls_handshake(ssl);
1391 } while (r == GNUTLS_E_AGAIN || r == GNUTLS_E_INTERRUPTED);
1392 break; /* re-receive */
1393 case GNUTLS_E_AGAIN:
1394 case GNUTLS_E_INTERRUPTED:
1406 gint sock_read(SockInfo *sock, gchar *buf, gint len)
1410 g_return_val_if_fail(sock != NULL, -1);
1414 ret = ssl_read(sock->ssl, buf, len);
1417 ret = fd_read(sock->sock, buf, len);
1420 sock->state = CONN_DISCONNECTED;
1424 gint fd_write(gint fd, const gchar *buf, gint len)
1426 if (fd_check_io(fd, G_IO_OUT) < 0)
1429 if (fd_is_w32_socket (fd))
1430 return send(fd, buf, len, 0);
1431 return write(fd, buf, len);
1435 static gint ssl_write(gnutls_session ssl, const gchar *buf, gint len)
1439 if (fd_check_io(GPOINTER_TO_INT(gnutls_transport_get_ptr(ssl)), G_IO_OUT) < 0)
1442 ret = gnutls_record_send(ssl, buf, len);
1447 case GNUTLS_E_AGAIN:
1448 case GNUTLS_E_INTERRUPTED:
1458 gint sock_write(SockInfo *sock, const gchar *buf, gint len)
1462 g_return_val_if_fail(sock != NULL, -1);
1466 ret = ssl_write(sock->ssl, buf, len);
1469 ret = fd_write(sock->sock, buf, len);
1472 sock->state = CONN_DISCONNECTED;
1476 gint fd_write_all(gint fd, const gchar *buf, gint len)
1481 if (fd_check_io(fd, G_IO_OUT) < 0)
1484 signal(SIGPIPE, SIG_IGN);
1486 if (fd_is_w32_socket(fd))
1487 n = send(fd, buf, len, 0);
1489 n = write(fd, buf, len);
1492 log_error(LOG_PROTOCOL, _("write on fd%d: %s\n"), fd, strerror(errno));
1504 static gint ssl_write_all(gnutls_session ssl, const gchar *buf, gint len)
1509 n = ssl_write(ssl, buf, len);
1521 gint sock_write_all(SockInfo *sock, const gchar *buf, gint len)
1525 g_return_val_if_fail(sock != NULL, -1);
1529 ret = ssl_write_all(sock->ssl, buf, len);
1532 ret = fd_write_all(sock->sock, buf, len);
1535 sock->state = CONN_DISCONNECTED;
1539 static gint fd_recv(gint fd, gchar *buf, gint len, gint flags)
1541 if (fd_check_io(fd, G_IO_IN) < 0)
1544 return recv(fd, buf, len, flags);
1547 gint fd_gets(gint fd, gchar *buf, gint len)
1549 gchar *newline, *bp = buf;
1559 MSKB Article ID: Q147714
1560 Windows Sockets 2 Service Provider Interface Limitations
1561 Polling with recv(MSG_PEEK) to determine when a complete message
1563 Reason and Workaround not available.
1565 Single-byte send() and recv().
1566 Reason: Couple one-byte sends with Nagle disabled.
1567 Workaround: Send modest amounts and receive as much as possible.
1570 if (recv(fd, bp, 1, 0) <= 0)
1577 #else /*!G_OS_WIN32*/
1579 if ((n = fd_recv(fd, bp, len, MSG_PEEK)) <= 0)
1581 if ((newline = memchr(bp, '\n', n)) != NULL)
1582 n = newline - bp + 1;
1583 if ((n = fd_read(fd, bp, n)) < 0)
1587 } while (!newline && len);
1588 #endif /*!G_OS_WIN32*/
1594 gint sock_close(SockInfo *sock)
1602 g_io_channel_unref(sock->sock_ch);
1606 ssl_done_socket(sock);
1607 if (sock->g_source != 0)
1608 g_source_remove(sock->g_source);
1612 shutdown(sock->sock, 1); /* complete transfer before close */
1613 ret = closesocket(sock->sock);
1615 ret = fd_close(sock->sock);
1618 g_free(sock->canonical_name);
1619 g_free(sock->hostname);
1625 gint fd_close(gint fd)