1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2011 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/types.h>
26 #include <sys/prctl.h>
34 #include "spawn-polkit-agent.h"
36 static pid_t agent_pid = 0;
38 int polkit_agent_open(void) {
41 char notify_fd[10 + 1];
46 /* We check STDIN here, not STDOUT, since this is about input,
48 if (!isatty(STDIN_FILENO))
51 if (pipe2(pipe_fd, 0) < 0)
54 snprintf(notify_fd, sizeof(notify_fd), "%i", pipe_fd[1]);
55 char_array_0(notify_fd);
57 r = fork_agent(&agent_pid,
59 POLKIT_AGENT_BINARY_PATH,
60 POLKIT_AGENT_BINARY_PATH, "--notify-fd", notify_fd, NULL);
62 /* Close the writing side, because that's the one for the agent */
63 close_nointr_nofail(pipe_fd[1]);
66 log_error("Failed to fork TTY ask password agent: %s", strerror(-r));
68 /* Wait until the agent closes the fd */
69 fd_wait_for_event(pipe_fd[0], POLLHUP, (usec_t) -1);
71 close_nointr_nofail(pipe_fd[0]);
76 void polkit_agent_close(void) {
81 /* Inform agent that we are done */
82 kill(agent_pid, SIGTERM);
83 kill(agent_pid, SIGCONT);
84 wait_for_terminate(agent_pid, NULL);