2 This file is part of PulseAudio.
4 Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
28 #include <sys/types.h>
30 #include <pulsecore/socket.h>
31 #include <pulsecore/core-util.h>
37 static int set_block(int fd, int blocking) {
44 if ((v = fcntl(fd, F_GETFL)) < 0)
52 if (fcntl(fd, F_SETFL, v) < 0)
57 #elif defined(OS_IS_WIN32)
63 if (ioctlsocket(fd, FIONBIO, &arg) < 0)
75 int pipe(int filedes[2]) {
77 struct sockaddr_in addr, peer;
84 listener = socket(PF_INET, SOCK_STREAM, 0);
88 filedes[0] = socket(PF_INET, SOCK_STREAM, 0);
92 filedes[1] = socket(PF_INET, SOCK_STREAM, 0);
96 /* Make non-blocking so that connect() won't block */
97 if (set_block(filedes[0], 0) < 0)
100 addr.sin_family = AF_INET;
102 addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
104 if (bind(listener, (struct sockaddr*)&addr, sizeof(addr)) < 0)
107 if (listen(listener, 1) < 0)
111 if (getsockname(listener, (struct sockaddr*)&addr, &len) < 0)
114 if (connect(filedes[0], (struct sockaddr*)&addr, sizeof(addr)) < 0) {
116 if (WSAGetLastError() != EWOULDBLOCK)
118 if (errno != EINPROGRESS)
124 filedes[1] = accept(listener, (struct sockaddr*)&peer, &len);
128 /* Restore blocking */
129 if (set_block(filedes[0], 1) < 0)
133 if (getsockname(filedes[0], (struct sockaddr*)&addr, &len) < 0)
136 /* Check that someone else didn't steal the connection */
137 if ((addr.sin_port != peer.sin_port) || (addr.sin_addr.s_addr != peer.sin_addr.s_addr))
148 pa_close(filedes[0]);
150 pa_close(filedes[1]);
155 #endif /* HAVE_PIPE */