login.c revision 1.10 1 /* $NetBSD: login.c,v 1.10 1999/06/12 18:06:40 christos Exp $ */
2
3 /*
4 * Copyright (c) 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <sys/cdefs.h>
37 #if defined(LIBC_SCCS) && !defined(lint)
38 #if 0
39 static char sccsid[] = "@(#)login.c 8.1 (Berkeley) 6/4/93";
40 #else
41 __RCSID("$NetBSD: login.c,v 1.10 1999/06/12 18:06:40 christos Exp $");
42 #endif
43 #endif /* LIBC_SCCS and not lint */
44
45 #include <sys/types.h>
46
47 #include <fcntl.h>
48 #include <unistd.h>
49 #include <stdlib.h>
50 #include <utmp.h>
51 #include <stdio.h>
52 #include <util.h>
53
54 void
55 login(ut)
56 const struct utmp *ut;
57 {
58 int fd;
59 int tty;
60
61 tty = ttyslot();
62 if (tty > 0 && (fd = open(_PATH_UTMP, O_WRONLY|O_CREAT, 0644)) >= 0) {
63 (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), SEEK_SET);
64 (void)write(fd, ut, sizeof(struct utmp));
65 (void)close(fd);
66 }
67 if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) {
68 (void)write(fd, ut, sizeof(struct utmp));
69 (void)close(fd);
70 }
71 }
72