ca78ad1de9
This means we need to include many more headers in various files that simply included util.h before, but it seems cleaner to do it this way.
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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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 "time-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_setup_service();
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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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return EXIT_FAILURE;
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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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return r < 0 || q < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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