summaryrefslogtreecommitdiffstats
path: root/man/journal-iterate-unique.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:25:50 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:25:50 +0000
commit19f4f86bfed21c5326ed2acebe1163f3a83e832b (patch)
treed59b9989ce55ed23693e80974d94c856f1c2c8b1 /man/journal-iterate-unique.c
parentInitial commit. (diff)
downloadsystemd-upstream.tar.xz
systemd-upstream.zip
Adding upstream version 241.upstream/241upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/journal-iterate-unique.c')
-rw-r--r--man/journal-iterate-unique.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/man/journal-iterate-unique.c b/man/journal-iterate-unique.c
new file mode 100644
index 0000000..fcf92e7
--- /dev/null
+++ b/man/journal-iterate-unique.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <string.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;
+}