[thirdparty/systemd.git] / man / journal-iterate-unique.c

/* SPDX-License-Identifier: MIT-0 */

#include <errno.h>
#include <stdio.h>
#include <systemd/sd-journal.h>

int main(int argc, char *argv[]) {
  sd_journal *j;
  const void *d;
  size_t l;
  int r;

  r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
  if (r < 0) {
    fprintf(stderr, "Failed to open journal: %s\n", strerror(-r));
    return 1;
  }
  r = sd_journal_query_unique(j, "_SYSTEMD_UNIT");
  if (r < 0) {
    fprintf(stderr, "Failed to query journal: %s\n", strerror(-r));
    return 1;
  }
  SD_JOURNAL_FOREACH_UNIQUE(j, d, l)
    printf("%.*s\n", (int) l, (const char*) d);
  sd_journal_close(j);
  return 0;
}
Commit	Line	Data
1fe6d37e	1	/* SPDX-License-Identifier: MIT-0 */
f4d74c61	2
b4096cec	3	#include <errno.h>
787f78b6	4	#include <stdio.h>
787f78b6 ZJS	5	#include <systemd/sd-journal.h>
	6
	7	int main(int argc, char *argv[]) {
	8	sd_journal *j;
	9	const void *d;
	10	size_t l;
	11	int r;
	12
	13	r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
	14	if (r < 0) {
e84f70e1	15	fprintf(stderr, "Failed to open journal: %s\n", strerror(-r));
787f78b6 ZJS	16	return 1;
	17	}
	18	r = sd_journal_query_unique(j, "_SYSTEMD_UNIT");
	19	if (r < 0) {
e84f70e1	20	fprintf(stderr, "Failed to query journal: %s\n", strerror(-r));
787f78b6 ZJS	21	return 1;
	22	}
	23	SD_JOURNAL_FOREACH_UNIQUE(j, d, l)
	24	printf("%.s\n", (int) l, (const char) d);
	25	sd_journal_close(j);
	26	return 0;
	27	}