1 /* 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. 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 /* from: static char sccsid[] = "@(#)login.c 8.1 (Berkeley) 6/4/93"; */ 36 static char *rcsid = "$Id: login.c,v 1.2 1996/05/22 11:35:05 deraadt Exp $"; 37 #endif /* LIBC_SCCS and not lint */ 38 39 #include <sys/types.h> 40 41 #include <fcntl.h> 42 #include <unistd.h> 43 #include <stdlib.h> 44 #include <utmp.h> 45 #include <stdio.h> 46 #include <util.h> 47 48 void 49 login(ut) 50 struct utmp *ut; 51 { 52 register int fd; 53 int tty; 54 55 tty = ttyslot(); 56 if (tty > 0 && (fd = open(_PATH_UTMP, O_WRONLY|O_CREAT, 0644)) >= 0) { 57 (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), L_SET); 58 (void)write(fd, ut, sizeof(struct utmp)); 59 (void)close(fd); 60 } 61 if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) { 62 (void)write(fd, ut, sizeof(struct utmp)); 63 (void)close(fd); 64 } 65 } 66