mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-29 15:10:57 +01:00
111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
/*-
|
|
* Copyright (c) 1988, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
#if 0
|
|
static char sccsid[] = "@(#)logwtmp.c 8.1 (Berkeley) 6/4/93";
|
|
#else
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/file.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <libutil.h>
|
|
#include <netdb.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <utmp.h>
|
|
|
|
/* wrapper for KAME-special getnameinfo() */
|
|
#ifndef NI_WITHSCOPEID
|
|
#define NI_WITHSCOPEID 0
|
|
#endif
|
|
|
|
|
|
void
|
|
logwtmp(line, name, host)
|
|
const char *line;
|
|
const char *name;
|
|
const char *host;
|
|
{
|
|
struct utmp ut;
|
|
struct stat buf;
|
|
char fullhost[MAXHOSTNAMELEN];
|
|
int fd;
|
|
|
|
strncpy(fullhost, host, sizeof(fullhost) - 1);
|
|
fullhost[sizeof(fullhost) - 1] = '\0';
|
|
trimdomain(fullhost, UT_HOSTSIZE);
|
|
host = fullhost;
|
|
|
|
if (strlen(host) > UT_HOSTSIZE) {
|
|
int error;
|
|
struct addrinfo hints, *res;
|
|
|
|
bzero(&hints, sizeof(struct addrinfo));
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_flags = AI_CANONNAME;
|
|
error = getaddrinfo(host, NULL, &hints, &res);
|
|
if (error != 0 || res->ai_addr == NULL)
|
|
host = "invalid hostname";
|
|
else {
|
|
error = getnameinfo(res->ai_addr, res->ai_addrlen,
|
|
fullhost, strlen(fullhost), NULL, 0,
|
|
NI_NUMERICHOST|NI_WITHSCOPEID);
|
|
if (error != 0) {
|
|
fprintf(stderr, "%d", error);
|
|
host = "invalid hostname";
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0)
|
|
return;
|
|
if (fstat(fd, &buf) == 0) {
|
|
(void) strncpy(ut.ut_line, line, sizeof(ut.ut_line));
|
|
(void) strncpy(ut.ut_name, name, sizeof(ut.ut_name));
|
|
(void) strncpy(ut.ut_host, host, sizeof(ut.ut_host));
|
|
(void) time(&ut.ut_time);
|
|
if (write(fd, (char *)&ut, sizeof(struct utmp)) !=
|
|
sizeof(struct utmp))
|
|
(void) ftruncate(fd, buf.st_size);
|
|
}
|
|
(void) close(fd);
|
|
}
|