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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2008 William Jon McCann <jmccann@redhat.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <libintl.h>
#include <locale.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include "ck-log-event.h"
#define DEFAULT_LOG_FILENAME LOCALSTATEDIR "/log/ConsoleKit/history"
/* Adapted from auditd auditd-event.c */
static gboolean
open_log_file (const char *filename,
int *fdp,
FILE **filep)
{
int flags;
int fd;
FILE *file;
gboolean ret;
ret = FALSE;
/*
* Likely errors on rotate: ENFILE, ENOMEM, ENOSPC
*/
flags = O_WRONLY | O_APPEND;
#ifdef O_NOFOLLOW
flags |= O_NOFOLLOW;
#endif
retry:
fd = g_open (filename, flags, 0600);
if (fd < 0) {
if (errno == ENOENT) {
/* FIXME: should we just skip if file doesn't exist? */
fd = g_open (filename,
O_CREAT | O_EXCL | O_APPEND,
S_IRUSR | S_IWUSR | S_IRGRP);
if (fd < 0) {
g_warning ("Couldn't create log file %s (%s)",
filename,
g_strerror (errno));
goto out;
}
close (fd);
fd = g_open (filename, flags, 0600);
} else if (errno == ENFILE) {
/* All system descriptors used, try again... */
goto retry;
}
if (fd < 0) {
g_warning ("Couldn't open log file %s (%s)",
filename,
g_strerror (errno));
goto out;
}
}
if (fcntl (fd, F_SETFD, FD_CLOEXEC) == -1) {
close (fd);
g_warning ("Error setting log file CLOEXEC flag (%s)",
g_strerror (errno));
goto out;
}
if (fchown (fd, 0, 0) == -1) {
g_warning ("Error changing owner of log file (%s)",
g_strerror (errno));
}
file = fdopen (fd, "a");
if (file == NULL) {
g_warning ("Error setting up log descriptor (%s)",
g_strerror (errno));
close (fd);
goto out;
}
/* Set it to line buffering */
setlinebuf (file);
ret = TRUE;
if (fdp != NULL) {
*fdp = fd;
}
if (filep != NULL) {
*filep = file;
}
out:
return ret;
}
static gboolean
write_log_for_event (CkLogEvent *event)
{
GString *str;
FILE *file;
int fd;
str = g_string_new (NULL);
ck_log_event_to_string (event, str);
if (! open_log_file (DEFAULT_LOG_FILENAME, &fd, &file)) {
exit (1);
}
if (file != NULL) {
int rc;
rc = fprintf (file, "%s\n", str->str);
if (rc <= 0) {
g_warning ("Record was not written to disk (%s)",
g_strerror (errno));
}
} else {
g_warning ("Log file not open for writing");
}
g_string_free (str, TRUE);
return TRUE;
}
int
main (int argc,
char **argv)
{
CkLogEvent event;
/* Setup for i18n */
setlocale(LC_ALL, "");
#ifdef ENABLE_NLS
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
#endif
memset (&event, 0, sizeof (CkLogEvent));
event.type = CK_LOG_EVENT_SYSTEM_RESTART;
g_get_current_time (&event.timestamp);
write_log_for_event (&event);
return 0;
}
|
