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/*
* 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.
*
*/
/*
* From: @(#)logwtmp.c 8.1 (Berkeley) 6/4/93
* From: NetBSD: logwtmp.c,v 1.4 1995/04/11 02:44:58 cgd Exp
* From: OpenBSD: ?
*/
char logwtmp_rcsid[] =
"$Id: logwtmp.c,v 1.5 1999/07/16 00:34:29 dholland Exp $";
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <utmp.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <netinet/in.h>
#include "extern.h"
static int fd = -1;
/*
* Modified version of logwtmp that holds wtmp file open
* after first call, for use with ftp (which may chroot
* after login, but before logout).
*/
void
ftpdlogwtmp(const char *line, const char *name,
const char *host, const struct sockaddr_storage *ss)
{
struct utmp ut;
struct stat buf;
if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0)
return;
if (fstat(fd, &buf) == 0) {
memset(&ut, 0, sizeof(ut));
#ifdef USER_PROCESS
ut.ut_type = *name ? USER_PROCESS : DEAD_PROCESS;
ut.ut_pid = getpid();
#endif
#if __WORDSIZE == 64 && __WORDSIZE_COMPAT32
/* Length of 'time_t' is 64 bits, but 'ut.ut_time' has 32 bits.*/
time_t now;
(void)time(&now);
ut.ut_time = now & 0xffffffff; /* Discard the upper 32 bits. */
#else
/* Equal size time representations. */
(void)time(&ut.ut_time);
#endif /* Mixed 64 and 32 bits time */
(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));
if (ss) {
switch (ss->ss_family) {
case AF_INET6:
memcpy(&ut.ut_addr,
&((const struct sockaddr_in6 *) ss)->sin6_addr,
sizeof(struct in6_addr));
break;
case AF_INET:
memcpy(&ut.ut_addr,
&((const struct sockaddr_in *) ss)->sin_addr,
sizeof(struct in_addr));
default:
break;
}
}
if (write(fd, (char *)&ut, sizeof(struct utmp)) !=
sizeof(struct utmp))
(void)ftruncate(fd, buf.st_size);
}
}
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