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- /* Copyright (c) 1988 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.
- *
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)logwtmp.c 5.7 (Berkeley) 2/25/91";
- static char rcsid[] = "@(#)$Id: logwtmp.c,v 1.9 1997/03/02 01:32:23 sob Exp $";
- #endif /* not lint */
-
- #include "config.h"
-
- #include <sys/types.h>
- #ifdef BSD
- #include <sys/time.h>
- #else
- #include <time.h>
- #endif
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <utmp.h>
- #ifdef SVR4
- #if !(defined(LINUX) || defined(__hpux)|| defined(_AIX))
- #include <utmpx.h>
- #ifndef _SCO_DS
- #include <sac.h>
- #endif
- #endif
- #endif
- #ifdef BSD
- #include <strings.h>
- #else
- #include <string.h>
- #endif
- #ifdef SYSSYSLOG
- #include <sys/syslog.h>
- #else
- #include <syslog.h>
- #endif
- #ifdef __FreeBSD__
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #endif
-
- #include "pathnames.h"
-
- static int fd = -1;
- #ifdef SVR4
- static int fdx = -1;
- #endif
-
- /* Modified version of logwtmp that holds wtmp file open after first call,
- * for use with ftp (which may chroot after login, but before logout). */
-
- #ifdef __STDC__
- logwtmp(char *line, char *name, char *host)
- #else
- logwtmp(line,name,host)
- char *line;
- char *name;
- char *host;
- #endif
- {
- struct stat buf;
- struct utmp ut;
-
- #ifdef SVR4
- #if !(defined(LINUX) || defined(__hpux) || defined (_AIX))
- struct utmpx utx;
-
- if (fdx < 0 && (fdx = open(WTMPX_FILE, O_WRONLY | O_APPEND, 0)) < 0) {
- syslog(LOG_ERR, "wtmpx %s %m", WTMPX_FILE);
- return;
- }
-
- if (fstat(fdx, &buf) == 0) {
- memset((void *)&utx, '\0', sizeof(utx));
- (void) strncpy(utx.ut_user, name, sizeof(utx.ut_user));
- (void) strncpy(utx.ut_id, "ftp", sizeof(utx.ut_id));
- (void) strncpy(utx.ut_line, line, sizeof(utx.ut_line));
- (void) strncpy(utx.ut_host, host, sizeof(utx.ut_host));
- utx.ut_syslen = strlen(utx.ut_host)+1;
- utx.ut_pid = getpid();
- (void) time (&utx.ut_tv.tv_sec);
- if (name && *name)
- utx.ut_type = USER_PROCESS;
- else
- utx.ut_type = DEAD_PROCESS;
- utx.ut_exit.e_termination = 0;
- utx.ut_exit.e_exit = 0;
- if (write(fdx, (char *) &utx, sizeof(struct utmpx)) !=
- sizeof(struct utmpx))
- (void) ftruncate(fdx, buf.st_size);
- }
- #endif
- #endif
-
- #ifdef __FreeBSD__
- if (strlen(host) > UT_HOSTSIZE) {
- struct hostent *hp = gethostbyname(host);
-
- if (hp != NULL) {
- struct in_addr in;
-
- memmove(&in, hp->h_addr, sizeof(in));
- host = inet_ntoa(in);
- } else
- host = "invalid hostname";
- }
- #endif
-
- if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY | O_APPEND, 0)) < 0) {
- syslog(LOG_ERR, "wtmp %s %m", _PATH_WTMP);
- return;
- }
- if (fstat(fd, &buf) == 0) {
- #ifdef UTMAXTYPE
- memset((void *)&ut, 0, sizeof(ut));
- (void) strncpy(ut.ut_user, name, sizeof(ut.ut_user));
- #ifdef LINUX
- (void) strncpy(ut.ut_id, "", sizeof(ut.ut_id));
- #else
- (void) strncpy(ut.ut_id, "ftp", sizeof(ut.ut_id));
- #endif
- (void) strncpy(ut.ut_line, line, sizeof(ut.ut_line));
- ut.ut_pid = getpid();
- if (name && *name)
- ut.ut_type = USER_PROCESS;
- else
- ut.ut_type = DEAD_PROCESS;
- #ifndef LINUX
- ut.ut_exit.e_termination = 0;
- ut.ut_exit.e_exit = 0;
- #endif
- #else
- (void) strncpy(ut.ut_line, line, sizeof(ut.ut_line));
- (void) strncpy(ut.ut_name, name, sizeof(ut.ut_name));
- #endif /* UTMAXTYPE */
- #ifdef HAVE_UT_UT_HOST /* does have host in utmp */
- (void) strncpy(ut.ut_host, host, sizeof(ut.ut_host));
- #endif
-
- (void) time(&ut.ut_time);
- if (write(fd, (char *) &ut, sizeof(struct utmp)) !=
- sizeof(struct utmp))
- (void) ftruncate(fd, buf.st_size);
- }
- }
-