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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /man/journal-iterate-foreach.c
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/journal-iterate-foreach.c')
-rw-r--r--man/journal-iterate-foreach.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/man/journal-iterate-foreach.c b/man/journal-iterate-foreach.c
new file mode 100644
index 0000000..381b50f
--- /dev/null
+++ b/man/journal-iterate-foreach.c
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT-0 */
+
+#include <errno.h>
+#include <stdio.h>
+#include <systemd/sd-journal.h>
+
+int main(int argc, char *argv[]) {
+ int r;
+ sd_journal *j;
+ r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
+ if (r < 0) {
+ errno = -r;
+ fprintf(stderr, "Failed to open journal: %m\n");
+ return 1;
+ }
+ SD_JOURNAL_FOREACH(j) {
+ const char *d;
+ size_t l;
+
+ r = sd_journal_get_data(j, "MESSAGE", (const void **)&d, &l);
+ if (r < 0) {
+ errno = -r;
+ fprintf(stderr, "Failed to read message field: %m\n");
+ continue;
+ }
+
+ printf("%.*s\n", (int) l, d);
+ }
+ sd_journal_close(j);
+ return 0;
+}