78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/***
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This file is part of systemd.
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Copyright 2014 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 "alloc-util.h"
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#include "fileio-label.h"
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#include "selinux-util.h"
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#include "util.h"
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#define MESSAGE \
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"# This file was created by systemd-update-done. Its only \n" \
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"# purpose is to hold a timestamp of the time this directory\n" \
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"# was updated. See man:systemd-update-done.service(8).\n"
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static int apply_timestamp(const char *path, struct timespec *ts) {
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_cleanup_free_ char *message = NULL;
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int r;
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/*
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* We store the timestamp both as mtime of the file and in the file itself,
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* to support filesystems which cannot store nanosecond-precision timestamps.
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*/
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if (asprintf(&message,
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MESSAGE
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"TIMESTAMP_NSEC=" NSEC_FMT "\n",
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timespec_load_nsec(ts)) < 0)
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return log_oom();
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r = write_string_file_atomic_label_ts(path, message, ts);
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if (r == -EROFS)
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return log_debug("Cannot create \"%s\", file system is read-only.", path);
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if (r < 0)
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return log_error_errno(r, "Failed to write \"%s\": %m", path);
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return 0;
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}
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int main(int argc, char *argv[]) {
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struct stat st;
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int r, q = 0;
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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 (stat("/usr", &st) < 0) {
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log_error_errno(errno, "Failed to stat /usr: %m");
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return EXIT_FAILURE;
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}
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r = mac_selinux_init();
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if (r < 0) {
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log_error_errno(r, "SELinux setup failed: %m");
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goto finish;
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}
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r = apply_timestamp("/etc/.updated", &st.st_mtim);
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q = apply_timestamp("/var/.updated", &st.st_mtim);
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finish:
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return r < 0 || q < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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