mirror of
https://github.com/systemd/systemd.git
synced 2024-11-13 23:21:08 +03:00
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*-*- 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 Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser 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-ask-password-agent.h"
|
|
|
|
static pid_t agent_pid = 0;
|
|
|
|
int ask_password_agent_open(void) {
|
|
int r;
|
|
|
|
if (agent_pid > 0)
|
|
return 0;
|
|
|
|
/* We check STDIN here, not STDOUT, since this is about input,
|
|
* not output */
|
|
if (!isatty(STDIN_FILENO))
|
|
return 0;
|
|
|
|
r = fork_agent(&agent_pid,
|
|
NULL, 0,
|
|
SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH,
|
|
SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
|
|
if (r < 0)
|
|
log_error_errno(r, "Failed to fork TTY ask password agent: %m");
|
|
|
|
return r;
|
|
}
|
|
|
|
void ask_password_agent_close(void) {
|
|
|
|
if (agent_pid <= 0)
|
|
return;
|
|
|
|
/* Inform agent that we are done */
|
|
kill(agent_pid, SIGTERM);
|
|
kill(agent_pid, SIGCONT);
|
|
(void) wait_for_terminate(agent_pid, NULL);
|
|
agent_pid = 0;
|
|
}
|