1 /* net/connectu_timeout.c - Make an UNIX domain connection with a timeout
2 * Copyright (C) 2004,2005 Bruce Guenter <bruce@untroubled.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18 #include "sysdeps.h"
19 #include <errno.h>
20 #include "socket.h"
21 #include "unix.h"
22
23 /** Connect a socket to an UNIX domain address, honouring a timeout.
24 *
25 * \note The socket will have nonblocking mode turned on on return from
26 * this function. */
socket_connectu_timeout(int sock,const char * path,int timeout)27 int socket_connectu_timeout(int sock, const char* path, int timeout)
28 {
29 iopoll_fd pf;
30 if (!nonblock_on(sock))
31 return 0;
32 if (socket_connectu(sock, path))
33 return 1;
34 if (errno != EINPROGRESS && errno != EWOULDBLOCK)
35 return 0;
36 pf.fd = sock;
37 pf.events = IOPOLL_WRITE;
38 switch (iopoll_restart(&pf, 1, timeout)) {
39 case 0:
40 errno = ETIMEDOUT;
41 return 0;
42 case 1:
43 if (socket_connected(sock))
44 return 1;
45 /* No break, fall through */
46 default:
47 return 0;
48 }
49 }
50