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
|
/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* Copyright (C) 2018 - David Oberhollenzer
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include "logfile.h"
logfile_t *logfile_create(const char *filename, int facility)
{
logfile_t *file = calloc(1, sizeof(*file) + strlen(filename) + 1);
if (file == NULL) {
perror("calloc");
return NULL;
}
strcpy(file->filename, filename);
file->facility = facility;
file->fd = open(file->filename, O_WRONLY | O_CREAT, 0640);
if (file->fd < 0) {
perror(file->filename);
goto fail;
}
if (lseek(file->fd, 0, SEEK_END))
goto fail_fd;
return file;
fail_fd:
close(file->fd);
fail:
free(file);
return NULL;
}
void logfile_destroy(logfile_t *file)
{
close(file->fd);
free(file);
}
void logfile_write(logfile_t *file, const char *format, ...)
{
va_list ap;
va_start(ap, format);
vdprintf(file->fd, format, ap);
va_end(ap);
fsync(file->fd);
}
|
