2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #if defined(LIBC_SCCS) && !defined(lint)
39 static char sccsid[] = "@(#)logwtmp.c 8.1 (Berkeley) 6/4/93";
41 #endif /* LIBC_SCCS and not lint */
43 #include <sys/param.h>
45 #include <sys/socket.h>
56 /* wrapper for KAME-special getnameinfo() */
57 #ifndef NI_WITHSCOPEID
58 #define NI_WITHSCOPEID 0
63 logwtmp(line, name, host)
70 char fullhost[MAXHOSTNAMELEN];
73 strncpy(fullhost, host, sizeof(fullhost) - 1);
74 fullhost[sizeof(fullhost) - 1] = '\0';
75 trimdomain(fullhost, UT_HOSTSIZE);
78 if (strlen(host) > UT_HOSTSIZE) {
80 struct addrinfo hints, *res;
82 bzero(&hints, sizeof(struct addrinfo));
83 hints.ai_family = AF_UNSPEC;
84 hints.ai_flags = AI_CANONNAME;
85 error = getaddrinfo(host, NULL, &hints, &res);
86 if (error != 0 || res->ai_addr == NULL)
87 host = "invalid hostname";
89 error = getnameinfo(res->ai_addr, res->ai_addrlen,
90 fullhost, strlen(fullhost), NULL, 0,
91 NI_NUMERICHOST|NI_WITHSCOPEID);
93 fprintf(stderr, "%d", error);
94 host = "invalid hostname";
99 if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0)
101 if (fstat(fd, &buf) == 0) {
102 (void) strncpy(ut.ut_line, line, sizeof(ut.ut_line));
103 (void) strncpy(ut.ut_name, name, sizeof(ut.ut_name));
104 (void) strncpy(ut.ut_host, host, sizeof(ut.ut_host));
105 (void) time(&ut.ut_time);
106 if (write(fd, (char *)&ut, sizeof(struct utmp)) !=
108 (void) ftruncate(fd, buf.st_size);