1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <fcntl.h>
#include <errno.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include "sd-journal.h"
#include "log.h"
int main(int argc, char *argv[]) {
int r, i;
sd_journal *j = NULL;
log_set_max_level(LOG_DEBUG);
log_set_target(LOG_TARGET_CONSOLE);
log_parse_environment();
log_open();
r = sd_journal_open(&j);
if (r < 0) {
log_error("Failed to open journal: %s", strerror(-r));
goto finish;
}
for (i = 1; i < argc; i++) {
r = sd_journal_add_match(j, argv[i], strlen(argv[i]));
if (r < 0) {
log_error("Failed to add match: %s", strerror(-r));
goto finish;
}
}
SD_JOURNAL_FOREACH(j) {
const void *data;
size_t length;
char *cursor;
uint64_t realtime = 0, monotonic = 0;
r = sd_journal_get_cursor(j, &cursor);
if (r < 0) {
log_error("Failed to get cursor: %s", strerror(-r));
goto finish;
}
printf("entry: %s\n", cursor);
free(cursor);
sd_journal_get_realtime_usec(j, &realtime);
sd_journal_get_monotonic_usec(j, &monotonic, NULL);
printf("realtime: %llu\n"
"monotonic: %llu\n",
(unsigned long long) realtime,
(unsigned long long) monotonic);
SD_JOURNAL_FOREACH_DATA(j, data, length)
printf("\t%.*s\n", (int) length, (const char*) data);
}
finish:
if (j)
sd_journal_close(j);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
|