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a4bcff5b LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2012 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
20 | #include <stdio.h> | |
21 | ||
a4bcff5b | 22 | #include "sd-journal.h" |
07630cea | 23 | |
cf0fbc49 | 24 | #include "journal-internal.h" |
07630cea | 25 | #include "log.h" |
763c7aa2 | 26 | #include "macro.h" |
a4bcff5b LP |
27 | |
28 | int main(int argc, char *argv[]) { | |
29 | unsigned n = 0; | |
4afd3348 | 30 | _cleanup_(sd_journal_closep) sd_journal*j = NULL; |
a4bcff5b LP |
31 | |
32 | log_set_max_level(LOG_DEBUG); | |
33 | ||
34 | assert_se(sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY) >= 0); | |
35 | ||
36 | assert_se(sd_journal_add_match(j, "_TRANSPORT=syslog", 0) >= 0); | |
37 | assert_se(sd_journal_add_match(j, "_UID=0", 0) >= 0); | |
38 | ||
39 | SD_JOURNAL_FOREACH_BACKWARDS(j) { | |
40 | const void *d; | |
41 | size_t l; | |
42 | ||
43 | assert_se(sd_journal_get_data(j, "MESSAGE", &d, &l) >= 0); | |
44 | ||
45 | printf("%.*s\n", (int) l, (char*) d); | |
46 | ||
313cefa1 | 47 | n++; |
a4bcff5b LP |
48 | if (n >= 10) |
49 | break; | |
50 | } | |
51 | ||
a4bcff5b LP |
52 | return 0; |
53 | } |