xref: /freebsd/crypto/openssh/sshlogin.c (revision cf2b5f3b6d88690d9dee1824ed589d164bb62abc)
11e8db6e2SBrian Feldman /*
21e8db6e2SBrian Feldman  * Author: Tatu Ylonen <ylo@cs.hut.fi>
31e8db6e2SBrian Feldman  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
41e8db6e2SBrian Feldman  *                    All rights reserved
51e8db6e2SBrian Feldman  * This file performs some of the things login(1) normally does.  We cannot
61e8db6e2SBrian Feldman  * easily use something like login -p -h host -f user, because there are
71e8db6e2SBrian Feldman  * several different logins around, and it is hard to determined what kind of
81e8db6e2SBrian Feldman  * login the current system has.  Also, we want to be able to execute commands
91e8db6e2SBrian Feldman  * on a tty.
101e8db6e2SBrian Feldman  *
111e8db6e2SBrian Feldman  * As far as I am concerned, the code I have written for this software
121e8db6e2SBrian Feldman  * can be used freely for any purpose.  Any derived versions of this
131e8db6e2SBrian Feldman  * software must be clearly marked as such, and if the derived work is
141e8db6e2SBrian Feldman  * incompatible with the protocol description in the RFC file, it must be
151e8db6e2SBrian Feldman  * called by a name other than "ssh" or "Secure Shell".
161e8db6e2SBrian Feldman  *
171e8db6e2SBrian Feldman  * Copyright (c) 1999 Theo de Raadt.  All rights reserved.
181e8db6e2SBrian Feldman  * Copyright (c) 1999 Markus Friedl.  All rights reserved.
191e8db6e2SBrian Feldman  *
201e8db6e2SBrian Feldman  * Redistribution and use in source and binary forms, with or without
211e8db6e2SBrian Feldman  * modification, are permitted provided that the following conditions
221e8db6e2SBrian Feldman  * are met:
231e8db6e2SBrian Feldman  * 1. Redistributions of source code must retain the above copyright
241e8db6e2SBrian Feldman  *    notice, this list of conditions and the following disclaimer.
251e8db6e2SBrian Feldman  * 2. Redistributions in binary form must reproduce the above copyright
261e8db6e2SBrian Feldman  *    notice, this list of conditions and the following disclaimer in the
271e8db6e2SBrian Feldman  *    documentation and/or other materials provided with the distribution.
281e8db6e2SBrian Feldman  *
291e8db6e2SBrian Feldman  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
301e8db6e2SBrian Feldman  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
311e8db6e2SBrian Feldman  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
321e8db6e2SBrian Feldman  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
331e8db6e2SBrian Feldman  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
341e8db6e2SBrian Feldman  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
351e8db6e2SBrian Feldman  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
361e8db6e2SBrian Feldman  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
371e8db6e2SBrian Feldman  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
381e8db6e2SBrian Feldman  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
391e8db6e2SBrian Feldman  */
401e8db6e2SBrian Feldman 
411e8db6e2SBrian Feldman #include "includes.h"
42cf2b5f3bSDag-Erling Smørgrav RCSID("$OpenBSD: sshlogin.c,v 1.7 2003/06/12 07:57:38 markus Exp $");
431e8db6e2SBrian Feldman 
44989dd127SDag-Erling Smørgrav #include "loginrec.h"
451e8db6e2SBrian Feldman 
461e8db6e2SBrian Feldman /*
471e8db6e2SBrian Feldman  * Returns the time when the user last logged in.  Returns 0 if the
481e8db6e2SBrian Feldman  * information is not available.  This must be called before record_login.
491e8db6e2SBrian Feldman  * The host the user logged in from will be returned in buf.
501e8db6e2SBrian Feldman  */
511e8db6e2SBrian Feldman u_long
521e8db6e2SBrian Feldman get_last_login_time(uid_t uid, const char *logname,
531e8db6e2SBrian Feldman     char *buf, u_int bufsize)
541e8db6e2SBrian Feldman {
55989dd127SDag-Erling Smørgrav   struct logininfo li;
561e8db6e2SBrian Feldman 
57989dd127SDag-Erling Smørgrav   login_get_lastlog(&li, uid);
58989dd127SDag-Erling Smørgrav   strlcpy(buf, li.hostname, bufsize);
59989dd127SDag-Erling Smørgrav   return li.tv_sec;
601e8db6e2SBrian Feldman }
611e8db6e2SBrian Feldman 
621e8db6e2SBrian Feldman /*
63cf2b5f3bSDag-Erling Smørgrav  * Records that the user has logged in.  I wish these parts of operating
64cf2b5f3bSDag-Erling Smørgrav  * systems were more standardized.
651e8db6e2SBrian Feldman  */
661e8db6e2SBrian Feldman void
671e8db6e2SBrian Feldman record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
687ac32603SHajimu UMEMOTO     const char *host, struct sockaddr * addr, socklen_t addrlen)
691e8db6e2SBrian Feldman {
70989dd127SDag-Erling Smørgrav   struct logininfo *li;
711e8db6e2SBrian Feldman 
72989dd127SDag-Erling Smørgrav   li = login_alloc_entry(pid, user, host, ttyname);
737ac32603SHajimu UMEMOTO   login_set_addr(li, addr, addrlen);
74989dd127SDag-Erling Smørgrav   login_login(li);
75989dd127SDag-Erling Smørgrav   login_free_entry(li);
761e8db6e2SBrian Feldman }
77989dd127SDag-Erling Smørgrav 
78989dd127SDag-Erling Smørgrav #ifdef LOGIN_NEEDS_UTMPX
79989dd127SDag-Erling Smørgrav void
80989dd127SDag-Erling Smørgrav record_utmp_only(pid_t pid, const char *ttyname, const char *user,
817ac32603SHajimu UMEMOTO 		 const char *host, struct sockaddr * addr, socklen_t addrlen)
82989dd127SDag-Erling Smørgrav {
83989dd127SDag-Erling Smørgrav   struct logininfo *li;
84989dd127SDag-Erling Smørgrav 
85989dd127SDag-Erling Smørgrav   li = login_alloc_entry(pid, user, host, ttyname);
867ac32603SHajimu UMEMOTO   login_set_addr(li, addr, addrlen);
87989dd127SDag-Erling Smørgrav   login_utmp_only(li);
88989dd127SDag-Erling Smørgrav   login_free_entry(li);
891e8db6e2SBrian Feldman }
90989dd127SDag-Erling Smørgrav #endif
911e8db6e2SBrian Feldman 
921e8db6e2SBrian Feldman /* Records that the user has logged out. */
931e8db6e2SBrian Feldman void
94989dd127SDag-Erling Smørgrav record_logout(pid_t pid, const char *ttyname, const char *user)
951e8db6e2SBrian Feldman {
96989dd127SDag-Erling Smørgrav   struct logininfo *li;
97989dd127SDag-Erling Smørgrav 
98989dd127SDag-Erling Smørgrav   li = login_alloc_entry(pid, user, NULL, ttyname);
99989dd127SDag-Erling Smørgrav   login_logout(li);
100989dd127SDag-Erling Smørgrav   login_free_entry(li);
1011e8db6e2SBrian Feldman }
102