mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-05 13:29:57 -05:00
5effc83479
FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this. This patch changes all FSF addresses to FSF web page according to the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html Done automatically by sed-ing through sources.
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <pulsecore/socket.h>
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#include <pulsecore/core-util.h>
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#include "pipe.h"
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#ifndef HAVE_PIPE
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static int set_block(int fd, int blocking) {
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#ifdef O_NONBLOCK
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int v;
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pa_assert(fd >= 0);
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if ((v = fcntl(fd, F_GETFL)) < 0)
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return -1;
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if (blocking)
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v &= ~O_NONBLOCK;
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else
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v |= O_NONBLOCK;
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if (fcntl(fd, F_SETFL, v) < 0)
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return -1;
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return 0;
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#elif defined(OS_IS_WIN32)
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u_long arg;
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arg = !blocking;
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if (ioctlsocket(fd, FIONBIO, &arg) < 0)
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return -1;
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return 0;
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#else
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return -1;
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#endif
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}
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int pipe(int filedes[2]) {
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int listener;
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struct sockaddr_in addr, peer;
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socklen_t len;
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listener = -1;
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filedes[0] = -1;
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filedes[1] = -1;
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listener = socket(PF_INET, SOCK_STREAM, 0);
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if (listener < 0)
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goto error;
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filedes[0] = socket(PF_INET, SOCK_STREAM, 0);
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if (filedes[0] < 0)
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goto error;
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filedes[1] = socket(PF_INET, SOCK_STREAM, 0);
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if (filedes[1] < 0)
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goto error;
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/* Make non-blocking so that connect() won't block */
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if (set_block(filedes[0], 0) < 0)
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goto error;
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addr.sin_family = AF_INET;
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addr.sin_port = 0;
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addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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if (bind(listener, (struct sockaddr*)&addr, sizeof(addr)) < 0)
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goto error;
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if (listen(listener, 1) < 0)
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goto error;
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len = sizeof(addr);
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if (getsockname(listener, (struct sockaddr*)&addr, &len) < 0)
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goto error;
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if (connect(filedes[0], (struct sockaddr*)&addr, sizeof(addr)) < 0) {
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#ifdef OS_IS_WIN32
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if (WSAGetLastError() != EWOULDBLOCK)
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#else
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if (errno != EINPROGRESS)
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#endif
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goto error;
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}
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len = sizeof(peer);
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filedes[1] = accept(listener, (struct sockaddr*)&peer, &len);
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if (filedes[1] < 0)
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goto error;
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/* Restore blocking */
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if (set_block(filedes[0], 1) < 0)
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goto error;
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len = sizeof(addr);
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if (getsockname(filedes[0], (struct sockaddr*)&addr, &len) < 0)
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goto error;
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/* Check that someone else didn't steal the connection */
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if ((addr.sin_port != peer.sin_port) || (addr.sin_addr.s_addr != peer.sin_addr.s_addr))
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goto error;
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pa_close(listener);
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return 0;
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error:
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if (listener >= 0)
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pa_close(listener);
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if (filedes[0] >= 0)
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pa_close(filedes[0]);
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if (filedes[1] >= 0)
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pa_close(filedes[1]);
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return -1;
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}
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#endif /* HAVE_PIPE */
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