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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 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/socket.h>
#include <sys/poll.h>
#include <sys/types.h>
#include <assert.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/un.h>
#include <sys/stat.h>
#include <sys/signalfd.h>
#include <getopt.h>
#include <termios.h>
#include <limits.h>
#include <stddef.h>
#include "log.h"
#include "macro.h"
#include "util.h"
#include "ask-password-api.h"
static const char *arg_icon = NULL;
static const char *arg_message = NULL;
static bool arg_use_tty = true;
static usec_t arg_timeout = 60 * USEC_PER_SEC;
static int help(void) {
printf("%s [OPTIONS...] MESSAGE\n\n"
"Query the user for a system passphrase, via the TTY or an UI agent.\n\n"
" -h --help Show this help\n"
" --icon=NAME Icon name\n"
" --timeout=SEC Timeout in sec\n"
" --no-tty Ask question via agent even on TTY\n",
program_invocation_short_name);
return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_ICON = 0x100,
ARG_TIMEOUT,
ARG_NO_TTY
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "icon", required_argument, NULL, ARG_ICON },
{ "timeout", required_argument, NULL, ARG_TIMEOUT },
{ "no-tty", no_argument, NULL, ARG_NO_TTY },
{ NULL, 0, NULL, 0 }
};
int c;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
switch (c) {
case 'h':
help();
return 0;
case ARG_ICON:
arg_icon = optarg;
break;
case ARG_TIMEOUT:
if (parse_usec(optarg, &arg_timeout) < 0 || arg_timeout <= 0) {
log_error("Failed to parse --timeout parameter %s", optarg);
return -EINVAL;
}
break;
case ARG_NO_TTY:
arg_use_tty = false;
break;
case '?':
return -EINVAL;
default:
log_error("Unknown option code %c", c);
return -EINVAL;
}
}
if (optind != argc-1) {
help();
return -EINVAL;
}
arg_message = argv[optind];
return 1;
}
int main(int argc, char *argv[]) {
int r;
char *password = NULL;
log_parse_environment();
log_open();
if ((r = parse_argv(argc, argv)) <= 0)
goto finish;
if (arg_use_tty && isatty(STDIN_FILENO))
r = ask_password_tty(arg_message, now(CLOCK_MONOTONIC) + arg_timeout, NULL, &password);
else
r = ask_password_agent(arg_message, arg_icon, now(CLOCK_MONOTONIC) + arg_timeout, &password);
if (r >= 0) {
fputs(password, stdout);
fflush(stdout);
}
finish:
free(password);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
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