128 lines
4.1 KiB
C
128 lines
4.1 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 2012 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 <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include "log.h"
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#include "util.h"
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#include "systemd/sd-id128.h"
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#include "systemd/sd-messages.h"
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int main(int argc, char *argv[]) {
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const char *verb;
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char* arguments[4];
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int r;
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FILE *f;
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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if (argc != 2) {
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log_error("Invalid number of arguments.");
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r = -EINVAL;
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goto finish;
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}
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if (streq(argv[1], "suspend"))
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verb = "mem";
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else if (streq(argv[1], "hibernate") || streq(argv[1], "hybrid-sleep"))
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verb = "disk";
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else {
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log_error("Unknown action '%s'.", argv[1]);
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r = -EINVAL;
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goto finish;
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}
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/* Configure the hibernation mode */
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if (streq(argv[1], "hibernate")) {
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if (write_one_line_file("/sys/power/disk", "platform") < 0)
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write_one_line_file("/sys/power/disk", "shutdown");
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} else if (streq(argv[1], "hybrid-sleep")) {
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if (write_one_line_file("/sys/power/disk", "suspend") < 0)
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if (write_one_line_file("/sys/power/disk", "platform") < 0)
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write_one_line_file("/sys/power/disk", "shutdown");
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}
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f = fopen("/sys/power/state", "we");
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if (!f) {
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log_error("Failed to open /sys/power/state: %m");
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r = -errno;
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goto finish;
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}
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arguments[0] = NULL;
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arguments[1] = (char*) "pre";
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arguments[2] = argv[1];
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arguments[3] = NULL;
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execute_directory(SYSTEM_SLEEP_PATH, NULL, arguments);
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if (streq(argv[1], "suspend"))
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log_struct(LOG_INFO,
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MESSAGE_ID(SD_MESSAGE_SLEEP_START),
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"MESSAGE=Suspending system...",
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"SLEEP=suspend",
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NULL);
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else if (streq(argv[1], "hibernate"))
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log_struct(LOG_INFO,
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MESSAGE_ID(SD_MESSAGE_SLEEP_START),
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"MESSAGE=Hibernating system...",
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"SLEEP=hibernate",
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NULL);
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else
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log_struct(LOG_INFO,
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MESSAGE_ID(SD_MESSAGE_SLEEP_START),
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"MESSAGE=Hibernating and suspending system...",
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"SLEEP=hybrid-sleep",
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NULL);
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fputs(verb, f);
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fputc('\n', f);
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fflush(f);
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r = ferror(f) ? -errno : 0;
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if (streq(argv[1], "suspend"))
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log_struct(LOG_INFO,
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MESSAGE_ID(SD_MESSAGE_SLEEP_STOP),
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"MESSAGE=System resumed.",
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"SLEEP=suspend",
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NULL);
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else
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log_struct(LOG_INFO,
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MESSAGE_ID(SD_MESSAGE_SLEEP_STOP),
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"MESSAGE=System thawed.",
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"SLEEP=hibernate",
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NULL);
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arguments[1] = (char*) "post";
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execute_directory(SYSTEM_SLEEP_PATH, NULL, arguments);
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fclose(f);
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finish:
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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