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
|
/* wtmp support rubbish (i.e. complete crap)
*
* Written by Erik Andersen <andersee@debian.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 675 Mass Ave,
* Cambridge, MA 02139, USA. */
#include <string.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <utmp.h>
#include <fcntl.h>
#include <sys/file.h>
void logwtmp (const char *line, const char *name, const char *host)
{
struct utmp lutmp;
memset (&(lutmp), 0, sizeof (struct utmp));
lutmp.ut_type = (name && *name)? USER_PROCESS : DEAD_PROCESS;
lutmp.ut_pid = getpid();
strncpy(lutmp.ut_line, line, sizeof(lutmp.ut_line)-1);
strncpy(lutmp.ut_name, name, sizeof(lutmp.ut_name)-1);
strncpy(lutmp.ut_host, host, sizeof(lutmp.ut_host)-1);
__libc_gettimeofday(&(lutmp.ut_tv), NULL);
updwtmp(_PATH_WTMP, &(lutmp));
}
#if 0
/* This is enabled in uClibc/libc/misc/utmp/wtent.c */
extern void updwtmp(const char *wtmp_file, const struct utmp *lutmp)
{
int fd;
fd = open(wtmp_file, O_APPEND | O_WRONLY, 0);
if (fd >= 0) {
if (lockf(fd, F_LOCK, 0)==0) {
write(fd, (const char *) lutmp, sizeof(struct utmp));
lockf(fd, F_ULOCK, 0);
close(fd);
}
}
}
#endif
|
