date and time created 88/08/31 23:01:29 by bostic
[unix-history] / usr / src / lib / libutil / logwtmp.c
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b27de394
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1/*
2 * Copyright (c) 1988 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * advertising materials, and other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16 */
17
18#if defined(LIBC_SCCS) && !defined(lint)
19static char sccsid[] = "@(#)logwtmp.c 5.1 (Berkeley) %G%";
20#endif /* LIBC_SCCS and not lint */
21
22#include <sys/types.h>
23#include <sys/file.h>
24#include <sys/time.h>
25#include <utmp.h>
26
27#define WTMPFILE "/usr/adm/wtmp"
28
29logwtmp(line)
30 char *line;
31{
32 struct utmp ut;
33 int fd;
34 time_t time();
35 char *strncpy();
36
37 if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0)
38 return;
39 bzero(ut.ut_name, sizeof(ut.ut_name));
40 bzero(ut.ut_host, sizeof(ut.ut_host));
41 (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line));
42 (void)time(&ut.ut_time);
43 (void)write(fd, (char *)&ut, sizeof(struct utmp));
44 (void)close(fd);
45}