xref: /freebsd/libexec/ftpd/logwtmp.c (revision 57718be8fa0bd5edc11ab9a72e68cc71982939a6)
1 /*
2  * Copyright (c) 1988, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #ifndef lint
31 #if 0
32 static char sccsid[] = "@(#)logwtmp.c	8.1 (Berkeley) 6/4/93";
33 #endif
34 #endif /* not lint */
35 
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38 
39 #include <sys/types.h>
40 #include <sys/stat.h>
41 #include <netinet/in.h>
42 #include <arpa/inet.h>
43 #include <sys/socket.h>
44 
45 #include <libutil.h>
46 #include <stdio.h>
47 #include <string.h>
48 #include <unistd.h>
49 #include <utmpx.h>
50 #include "extern.h"
51 
52 void
53 ftpd_logwtmp(char *id, char *user, struct sockaddr *addr)
54 {
55 	struct utmpx ut;
56 
57 	memset(&ut, 0, sizeof(ut));
58 
59 	if (user != NULL) {
60 		/* Log in. */
61 		ut.ut_type = USER_PROCESS;
62 		(void)strncpy(ut.ut_user, user, sizeof(ut.ut_user));
63 		if (addr != NULL)
64 			realhostname_sa(ut.ut_host, sizeof(ut.ut_host),
65 			    addr, addr->sa_len);
66 	} else {
67 		/* Log out. */
68 		ut.ut_type = DEAD_PROCESS;
69 	}
70 
71 	ut.ut_pid = getpid();
72 	gettimeofday(&ut.ut_tv, NULL);
73 	(void)strncpy(ut.ut_id, id, sizeof(ut.ut_id));
74 	(void)strncpy(ut.ut_line, "ftpd", sizeof(ut.ut_line));
75 
76 	pututxline(&ut);
77 }
78