1 /* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * 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. 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. 20 * 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 31 * SUCH DAMAGE. 32 */ 33 34 #if defined(LIBC_SCCS) && !defined(lint) 35 /*static char sccsid[] = "from: @(#)logwtmp.c 5.5 (Berkeley) 6/1/90";*/ 36 static char rcsid[] = "$Id: logwtmp.c,v 1.2 1993/08/01 18:31:49 mycroft Exp $"; 37 #endif /* LIBC_SCCS and not lint */ 38 39 #include <sys/types.h> 40 #include <sys/file.h> 41 #include <sys/time.h> 42 #include <sys/stat.h> 43 #include <utmp.h> 44 45 logwtmp(line, name, host) 46 char *line, *name, *host; 47 { 48 struct utmp ut; 49 struct stat buf; 50 int fd; 51 time_t time(); 52 char *strncpy(); 53 54 if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) 55 return; 56 if (fstat(fd, &buf) == 0) { 57 (void) strncpy(ut.ut_line, line, sizeof(ut.ut_line)); 58 (void) strncpy(ut.ut_name, name, sizeof(ut.ut_name)); 59 (void) strncpy(ut.ut_host, host, sizeof(ut.ut_host)); 60 (void) time(&ut.ut_time); 61 if (write(fd, (char *)&ut, sizeof(struct utmp)) != 62 sizeof(struct utmp)) 63 (void) ftruncate(fd, buf.st_size); 64 } 65 (void) close(fd); 66 } 67