polkit: temporarily spawn of a polkit agent in terminals for possibly authenticated...

[elogind.git] / src / spawn-agent.c

diff --git a/src/spawn-agent.c b/src/spawn-agent.c
deleted file mode 100644 (file)
index 2de2530..0000000
--- a/src/spawn-agent.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2011 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/types.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/prctl.h>
-#include <signal.h>
-#include <fcntl.h>
-
-#include "log.h"
-#include "util.h"
-#include "spawn-agent.h"
-
-static pid_t agent_pid = 0;
-
-void agent_open(void) {
-        pid_t parent_pid;
-
-        if (agent_pid > 0)
-                return;
-
-        /* We check STDIN here, not STDOUT, since this is about input,
-         * not output */
-        if (!isatty(STDIN_FILENO))
-                return;
-
-        parent_pid = getpid();
-
-        /* Spawns a temporary TTY agent, making sure it goes away when
-         * we go away */
-
-        agent_pid = fork();
-        if (agent_pid < 0) {
-                log_error("Failed to fork agent: %m");
-                return;
-        }
-
-        if (agent_pid == 0) {
-                /* In the child */
-
-                int fd;
-                bool stdout_is_tty, stderr_is_tty;
-
-                /* Make sure the agent goes away when the parent dies */
-                if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
-                        _exit(EXIT_FAILURE);
-
-                /* Check whether our parent died before we were able
-                 * to set the death signal */
-                if (getppid() != parent_pid)
-                        _exit(EXIT_SUCCESS);
-
-                /* Don't leak fds to the agent */
-                close_all_fds(NULL, 0);
-
-                stdout_is_tty = isatty(STDOUT_FILENO);
-                stderr_is_tty = isatty(STDERR_FILENO);
-
-                if (!stdout_is_tty || !stderr_is_tty) {
-                        /* Detach from stdout/stderr. and reopen
-                         * /dev/tty for them. This is important to
-                         * ensure that when systemctl is started via
-                         * popen() or a similar call that expects to
-                         * read EOF we actually do generate EOF and
-                         * not delay this indefinitely by because we
-                         * keep an unused copy of stdin around. */
-                        fd = open("/dev/tty", O_WRONLY);
-                        if (fd < 0) {
-                                log_error("Failed to open /dev/tty: %m");
-                                _exit(EXIT_FAILURE);
-                        }
-
-                        if (!stdout_is_tty)
-                                dup2(fd, STDOUT_FILENO);
-
-                        if (!stderr_is_tty)
-                                dup2(fd, STDERR_FILENO);
-
-                        if (fd > 2)
-                                close(fd);
-                }
-
-                execl(SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
-
-                log_error("Unable to execute agent: %m");
-                _exit(EXIT_FAILURE);
-        }
-}
-
-void agent_close(void) {
-
-        if (agent_pid <= 0)
-                return;
-
-        /* Inform agent that we are done */
-        kill(agent_pid, SIGTERM);
-        kill(agent_pid, SIGCONT);
-        wait_for_terminate(agent_pid, NULL);
-        agent_pid = 0;
-}