+/* $OpenBSD: sshlogin.c,v 1.25 2006/08/03 03:34:42 deraadt Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
*/
#include "includes.h"
-RCSID("$OpenBSD: sshlogin.c,v 1.7 2003/06/12 07:57:38 markus Exp $");
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
#include "loginrec.h"
+#include "log.h"
+#include "buffer.h"
+#include "servconf.h"
+
+extern Buffer loginmsg;
+extern ServerOptions options;
/*
* Returns the time when the user last logged in. Returns 0 if the
* information is not available. This must be called before record_login.
* The host the user logged in from will be returned in buf.
*/
-u_long
+time_t
get_last_login_time(uid_t uid, const char *logname,
- char *buf, u_int bufsize)
+ char *buf, size_t bufsize)
{
struct logininfo li;
login_get_lastlog(&li, uid);
strlcpy(buf, li.hostname, bufsize);
- return li.tv_sec;
+ return (time_t)li.tv_sec;
+}
+
+/*
+ * Generate and store last login message. This must be done before
+ * login_login() is called and lastlog is updated.
+ */
+static void
+store_lastlog_message(const char *user, uid_t uid)
+{
+ char *time_string, hostname[MAXHOSTNAMELEN] = "", buf[512];
+ time_t last_login_time;
+
+#ifndef NO_SSH_LASTLOG
+ if (!options.print_lastlog)
+ return;
+
+ last_login_time = get_last_login_time(uid, user, hostname,
+ sizeof(hostname));
+
+ if (last_login_time != 0) {
+ time_string = ctime(&last_login_time);
+ if (strchr(time_string, '\n'))
+ *strchr(time_string, '\n') = '\0';
+ if (strcmp(hostname, "") == 0)
+ snprintf(buf, sizeof(buf), "Last login: %s\r\n",
+ time_string);
+ else
+ snprintf(buf, sizeof(buf), "Last login: %s from %s\r\n",
+ time_string, hostname);
+ buffer_append(&loginmsg, buf, strlen(buf));
+ }
+#endif /* NO_SSH_LASTLOG */
}
/*
* systems were more standardized.
*/
void
-record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
- const char *host, struct sockaddr * addr, socklen_t addrlen)
+record_login(pid_t pid, const char *tty, const char *user, uid_t uid,
+ const char *host, struct sockaddr *addr, socklen_t addrlen)
{
struct logininfo *li;
- li = login_alloc_entry(pid, user, host, ttyname);
+ /* save previous login details before writing new */
+ store_lastlog_message(user, uid);
+
+ li = login_alloc_entry(pid, user, host, tty);
login_set_addr(li, addr, addrlen);
login_login(li);
login_free_entry(li);
#ifdef LOGIN_NEEDS_UTMPX
void
record_utmp_only(pid_t pid, const char *ttyname, const char *user,
- const char *host, struct sockaddr * addr, socklen_t addrlen)
+ const char *host, struct sockaddr *addr, socklen_t addrlen)
{
struct logininfo *li;
/* Records that the user has logged out. */
void
-record_logout(pid_t pid, const char *ttyname, const char *user)
+record_logout(pid_t pid, const char *tty, const char *user)
{
struct logininfo *li;
- li = login_alloc_entry(pid, user, NULL, ttyname);
+ li = login_alloc_entry(pid, user, NULL, tty);
login_logout(li);
login_free_entry(li);
}