/*
- *
- * login.c
- *
* Author: Tatu Ylonen <ylo@cs.hut.fi>
- *
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
- *
- * Created: Fri Mar 24 14:51:08 1995 ylo
- *
* This file performs some of the things login(1) normally does. We cannot
* easily use something like login -p -h host -f user, because there are
* several different logins around, and it is hard to determined what kind of
* login the current system has. Also, we want to be able to execute commands
* on a tty.
- *
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ *
+ * Copyright (c) 1999 Theo de Raadt. All rights reserved.
+ * Copyright (c) 1999 Markus Friedl. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include "includes.h"
-RCSID("$Id$");
+RCSID("$OpenBSD: login.c,v 1.16 2000/12/19 23:17:57 markus Exp $");
-#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
-# include <utmpx.h>
-#endif
-#ifdef HAVE_UTMP_H
-# include <utmp.h>
-#endif
-#include "ssh.h"
-
-#ifdef HAVE_UTIL_H
-# include <util.h>
-#endif
-#ifdef HAVE_LASTLOG_H
-# include <lastlog.h>
-#endif
-#ifdef HAVE_LOGIN_H
-# include <login.h>
-#endif
+#include "loginrec.h"
/*
* Returns the time when the user last logged in. Returns 0 if the
* The host the user logged in from will be returned in buf.
*/
-/*
- * Returns the time when the user last logged in (or 0 if no previous login
- * is found). The name of the host used last time is returned in buf.
- */
-
-unsigned long
+u_long
get_last_login_time(uid_t uid, const char *logname,
- char *buf, unsigned int bufsize)
+ char *buf, u_int bufsize)
{
-#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
- struct lastlog ll;
- char *lastlog;
- int fd;
-
- lastlog = _PATH_LASTLOG;
- buf[0] = '\0';
-
- fd = open(lastlog, O_RDONLY);
- if (fd < 0)
- return 0;
- lseek(fd, (off_t) ((long) uid * sizeof(ll)), SEEK_SET);
- if (read(fd, &ll, sizeof(ll)) != sizeof(ll)) {
- close(fd);
- return 0;
- }
- close(fd);
- if (bufsize > sizeof(ll.ll_host) + 1)
- bufsize = sizeof(ll.ll_host) + 1;
- strncpy(buf, ll.ll_host, bufsize - 1);
- buf[bufsize - 1] = 0;
- return ll.ll_time;
-
-#else /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
- /* Look in wtmp for the last login */
- struct utmp wt;
- char *wt_file = _PATH_WTMP;
- int fd1;
- unsigned long t = 0;
-
- if ( (fd1 = open(wt_file, O_RDONLY)) < 0 ) {
- error("Couldn't open %.100s to find last login time.", wt_file);
- return 0;
- }
-
- /* seek to last record of file */
- lseek(fd1, (off_t)(0-sizeof(struct utmp)), SEEK_END);
+ struct logininfo li;
- /* loop through wtmp for our last user login record */
- do {
- if (read(fd1, &wt, sizeof(wt)) != sizeof(wt)) {
- close(fd1);
- return 0;
- }
-
- if ( wt.ut_type == USER_PROCESS) {
- if ( !strncmp(logname, wt.ut_user, 8) ) {
- t = (unsigned long) wt.ut_time;
-#ifdef HAVE_HOST_IN_UTMP
- if (bufsize > sizeof(wt.ut_host) + 1)
- bufsize = sizeof(wt.ut_host) + 1;
- strncpy(buf, wt.ut_host, bufsize - 1);
- buf[bufsize - 1] = 0;
-#else /* HAVE_HOST_IN_UTMP */
- buf[0] = 0;
-#endif /* HAVE_HOST_IN_UTMP */
- }
- }
-
- if (lseek(fd1, (off_t)(0-2*sizeof(struct utmp)), SEEK_CUR) == -1)
- break;
- } while (t == 0);
-
- return t;
-#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
+ login_get_lastlog(&li, uid);
+ strlcpy(buf, li.hostname, bufsize);
+ return li.tv_sec;
}
/*
* were more standardized.
*/
-void
-record_login(int pid, const char *ttyname, const char *user, uid_t uid,
- const char *host, struct sockaddr_in * addr)
+void
+record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
+ const char *host, struct sockaddr * addr)
{
-#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
- struct lastlog ll;
- char *lastlog;
-#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
- struct UTMP_STR u;
- const char *utmp, *wtmp;
-
- /* Construct an utmp/wtmp entry. */
- memset(&u, 0, sizeof(u));
- strncpy(u.ut_line, ttyname + 5, sizeof(u.ut_line));
-#if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
- u.ut_tv.tv_sec = time(NULL);
- strncpy(u.ut_user, user, sizeof(u.ut_name));
-#else
- u.ut_time = time(NULL);
- strncpy(u.ut_name, user, sizeof(u.ut_name));
-#endif
-#if defined(HAVE_HOST_IN_UTMP) || defined(HAVE_HOST_IN_UTMPX)
- strncpy(u.ut_host, host, sizeof(u.ut_host));
-#endif
-
- /* Figure out the file names. */
- utmp = _PATH_UTMP;
- wtmp = _PATH_WTMP;
+ struct logininfo *li;
- login(&u);
-
-#if defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG)
- lastlog = _PATH_LASTLOG;
-
- /* Update lastlog unless actually recording a logout. */
- if (strcmp(user, "") != 0) {
- int fd;
- /*
- * It is safer to bzero the lastlog structure first because
- * some systems might have some extra fields in it (e.g. SGI)
- */
- memset(&ll, 0, sizeof(ll));
-
- /* Update lastlog. */
- ll.ll_time = time(NULL);
- strncpy(ll.ll_line, ttyname + 5, sizeof(ll.ll_line));
- strncpy(ll.ll_host, host, sizeof(ll.ll_host));
- fd = open(lastlog, O_RDWR);
- if (fd >= 0) {
- lseek(fd, (off_t) ((long) uid * sizeof(ll)), SEEK_SET);
- if (write(fd, &ll, sizeof(ll)) != sizeof(ll))
- log("Could not write %.100s: %.100s", lastlog, strerror(errno));
- close(fd);
- }
- }
-#endif /* defined(_PATH_LASTLOG) && !defined(DISABLE_LASTLOG) */
+ li = login_alloc_entry(pid, user, host, ttyname);
+ login_set_addr(li, addr, sizeof(struct sockaddr));
+ login_login(li);
+ login_free_entry(li);
}
/* Records that the user has logged out. */
-void
-record_logout(int pid, const char *ttyname)
+void
+record_logout(pid_t pid, const char *ttyname)
{
-#ifdef HAVE_LIBUTIL_LOGIN
- const char *line = ttyname + 5; /* /dev/ttyq8 -> ttyq8 */
- if (logout(line))
- logwtmp(line, "", "");
-#else /* HAVE_LIBUTIL_LOGIN */
- record_login(pid, ttyname, "", -1, "", NULL);
-#endif /* HAVE_LIBUTIL_LOGIN */
+ struct logininfo *li;
+
+ li = login_alloc_entry(pid, NULL, NULL, ttyname);
+ login_logout(li);
+ login_free_entry(li);
}
andersk / openssh.git / blobdiff