xref: /freebsd/libexec/ftpd/logwtmp.c (revision f39bffc62c1395bde25d152c7f68fdf7cbaab414)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
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. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #ifndef lint
33 #if 0
34 static char sccsid[] = "@(#)logwtmp.c	8.1 (Berkeley) 6/4/93";
35 #endif
36 #endif /* not lint */
37 
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
40 
41 #include <sys/types.h>
42 #include <sys/stat.h>
43 #include <netinet/in.h>
44 #include <arpa/inet.h>
45 #include <sys/socket.h>
46 
47 #include <libutil.h>
48 #include <stdio.h>
49 #include <string.h>
50 #include <unistd.h>
51 #include <utmpx.h>
52 #include "extern.h"
53 
54 void
55 ftpd_logwtmp(char *id, char *user, struct sockaddr *addr)
56 {
57 	struct utmpx ut;
58 
59 	memset(&ut, 0, sizeof(ut));
60 
61 	if (user != NULL) {
62 		/* Log in. */
63 		ut.ut_type = USER_PROCESS;
64 		(void)strncpy(ut.ut_user, user, sizeof(ut.ut_user));
65 		if (addr != NULL)
66 			realhostname_sa(ut.ut_host, sizeof(ut.ut_host),
67 			    addr, addr->sa_len);
68 	} else {
69 		/* Log out. */
70 		ut.ut_type = DEAD_PROCESS;
71 	}
72 
73 	ut.ut_pid = getpid();
74 	gettimeofday(&ut.ut_tv, NULL);
75 	(void)strncpy(ut.ut_id, id, sizeof(ut.ut_id));
76 	(void)strncpy(ut.ut_line, "ftpd", sizeof(ut.ut_line));
77 
78 	pututxline(&ut);
79 }
80