5430f7f2bc
We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
185 lines
5.3 KiB
C
185 lines
5.3 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd 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 License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <sys/socket.h>
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#include <sys/poll.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/un.h>
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#include <sys/stat.h>
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#include <sys/signalfd.h>
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#include <getopt.h>
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#include <termios.h>
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#include <limits.h>
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#include <stddef.h>
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#include "log.h"
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#include "macro.h"
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#include "util.h"
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#include "strv.h"
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#include "ask-password-api.h"
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#include "def.h"
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static const char *arg_icon = NULL;
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static const char *arg_message = NULL;
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static bool arg_use_tty = true;
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static usec_t arg_timeout = DEFAULT_TIMEOUT_USEC;
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static bool arg_accept_cached = false;
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static bool arg_multiple = false;
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static int help(void) {
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printf("%s [OPTIONS...] MESSAGE\n\n"
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"Query the user for a system passphrase, via the TTY or an UI agent.\n\n"
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" -h --help Show this help\n"
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" --icon=NAME Icon name\n"
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" --timeout=SEC Timeout in sec\n"
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" --no-tty Ask question via agent even on TTY\n"
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" --accept-cached Accept cached passwords\n"
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" --multiple List multiple passwords if available\n",
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program_invocation_short_name);
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return 0;
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_ICON = 0x100,
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ARG_TIMEOUT,
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ARG_NO_TTY,
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ARG_ACCEPT_CACHED,
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ARG_MULTIPLE
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "icon", required_argument, NULL, ARG_ICON },
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{ "timeout", required_argument, NULL, ARG_TIMEOUT },
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{ "no-tty", no_argument, NULL, ARG_NO_TTY },
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{ "accept-cached", no_argument, NULL, ARG_ACCEPT_CACHED },
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{ "multiple", no_argument, NULL, ARG_MULTIPLE },
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{ NULL, 0, NULL, 0 }
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};
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int c;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
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switch (c) {
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case 'h':
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help();
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return 0;
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case ARG_ICON:
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arg_icon = optarg;
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break;
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case ARG_TIMEOUT:
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if (parse_usec(optarg, &arg_timeout) < 0) {
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log_error("Failed to parse --timeout parameter %s", optarg);
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return -EINVAL;
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}
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break;
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case ARG_NO_TTY:
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arg_use_tty = false;
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break;
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case ARG_ACCEPT_CACHED:
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arg_accept_cached = true;
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break;
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case ARG_MULTIPLE:
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arg_multiple = true;
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break;
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case '?':
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return -EINVAL;
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default:
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log_error("Unknown option code %c", c);
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return -EINVAL;
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}
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}
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if (optind != argc-1) {
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help();
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return -EINVAL;
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}
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arg_message = argv[optind];
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return 1;
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}
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int main(int argc, char *argv[]) {
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int r;
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usec_t timeout;
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log_parse_environment();
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log_open();
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if ((r = parse_argv(argc, argv)) <= 0)
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goto finish;
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if (arg_timeout > 0)
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timeout = now(CLOCK_MONOTONIC) + arg_timeout;
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else
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timeout = 0;
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if (arg_use_tty && isatty(STDIN_FILENO)) {
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char *password = NULL;
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if ((r = ask_password_tty(arg_message, timeout, NULL, &password)) >= 0) {
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puts(password);
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free(password);
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}
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} else {
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char **l;
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if ((r = ask_password_agent(arg_message, arg_icon, timeout, arg_accept_cached, &l)) >= 0) {
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char **p;
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STRV_FOREACH(p, l) {
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puts(*p);
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if (!arg_multiple)
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break;
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}
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strv_free(l);
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}
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}
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finish:
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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