mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-06 13:29:56 -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FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this.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.
113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2007 Lennart Poettering
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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
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published by the Free Software Foundation; either version 2.1 of the
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License, 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License 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 <stdio.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <signal.h>
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#ifdef HAVE_SYS_PRCTL_H
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#include <sys/prctl.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#include <pulsecore/core-util.h>
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#include <pulsecore/core-error.h>
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#include <pulsecore/pipe.h>
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#include "start-child.h"
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int pa_start_child_for_read(const char *name, const char *argv1, pid_t *pid) {
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#ifdef HAVE_FORK
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pid_t child;
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int pipe_fds[2] = { -1, -1 };
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if (pipe(pipe_fds) < 0) {
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pa_log("pipe() failed: %s", pa_cstrerror(errno));
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goto fail;
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}
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if ((child = fork()) == (pid_t) -1) {
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pa_log("fork() failed: %s", pa_cstrerror(errno));
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goto fail;
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} else if (child != 0) {
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/* Parent */
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pa_assert_se(pa_close(pipe_fds[1]) == 0);
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if (pid)
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*pid = child;
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return pipe_fds[0];
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} else {
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/* child */
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pa_reset_personality();
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pa_assert_se(pa_close(pipe_fds[0]) == 0);
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pa_assert_se(dup2(pipe_fds[1], STDOUT_FILENO) == STDOUT_FILENO);
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if (pipe_fds[1] != STDOUT_FILENO)
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pa_assert_se(pa_close(pipe_fds[1]) == 0);
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pa_close(STDIN_FILENO);
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pa_assert_se(open("/dev/null", O_RDONLY) == STDIN_FILENO);
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pa_close(STDERR_FILENO);
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pa_assert_se(open("/dev/null", O_WRONLY) == STDERR_FILENO);
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pa_close_all(-1);
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pa_reset_sigs(-1);
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pa_unblock_sigs(-1);
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pa_reset_priority();
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pa_unset_env_recorded();
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/* Make sure our children are not influenced by the
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* LD_BIND_NOW we set for ourselves. */
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pa_unset_env("LD_BIND_NOW");
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#ifdef PR_SET_PDEATHSIG
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/* On Linux we can use PR_SET_PDEATHSIG to have the helper
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process killed when the daemon dies abnormally. On non-Linux
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machines the client will die as soon as it writes data to
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stdout again (SIGPIPE) */
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prctl(PR_SET_PDEATHSIG, SIGTERM, 0, 0, 0);
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#endif
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execl(name, name, argv1, NULL);
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_exit(1);
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}
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fail:
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pa_close_pipe(pipe_fds);
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#endif /* HAVE_FORK */
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return -1;
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}
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