/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2012 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <stdio.h> #include "log.h" #include "sd-journal.h" #include "macro.h" #include "journal-internal.h" int main(int argc, char *argv[]) { unsigned n = 0; _cleanup_journal_close_ sd_journal*j = NULL; log_set_max_level(LOG_DEBUG); assert_se(sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY) >= 0); assert_se(sd_journal_add_match(j, "_TRANSPORT=syslog", 0) >= 0); assert_se(sd_journal_add_match(j, "_UID=0", 0) >= 0); SD_JOURNAL_FOREACH_BACKWARDS(j) { const void *d; size_t l; assert_se(sd_journal_get_data(j, "MESSAGE", &d, &l) >= 0); printf("%.*s\n", (int) l, (char*) d); n ++; if (n >= 10) break; } return 0; }