From 76112de73437ac3db04b45d4b7a9d1f1b74f83fd Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Tue, 21 Dec 1999 11:18:08 +1100
Subject:  - Integration of large HPUX patch from Andre Lucas   
 <andre.lucas@dial.pipex.com>. Integrating it had a few other    benefits:   
 - Ability to disable shadow passwords at configure time    - Ability to
 disable lastlog support at configure time    - Support for IP address in
 $DISPLAY

---
 login.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 47 insertions(+), 2 deletions(-)

(limited to 'login.c')

diff --git a/login.c b/login.c
index e506d24e..552117ca 100644
--- a/login.c
+++ b/login.c
@@ -18,7 +18,7 @@
  */
 
 #include "includes.h"
-RCSID("$Id: login.c,v 1.7 1999/12/20 22:51:36 damien Exp $");
+RCSID("$Id: login.c,v 1.8 1999/12/21 00:18:08 damien Exp $");
 
 #if defined(HAVE_UTMPX_H) && defined(USE_UTMPX)
 # include <utmpx.h>
@@ -53,6 +53,7 @@ unsigned long
 get_last_login_time(uid_t uid, const char *logname,
 		    char *buf, unsigned int bufsize)
 {
+#if defined(HAVE_LASTLOG_H) && !defined(DISABLE_LASTLOG)
 	struct lastlog ll;
 	char *lastlog;
 	int fd;
@@ -74,6 +75,45 @@ get_last_login_time(uid_t uid, const char *logname,
 	strncpy(buf, ll.ll_host, bufsize - 1);
 	buf[bufsize - 1] = 0;
 	return ll.ll_time;
+
+#else /* defined(HAVE_LASTLOG_H) && !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);
+
+	/* 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;
+				if (bufsize > sizeof(wt.ut_host) + 1)
+				bufsize = sizeof(wt.ut_host) + 1;
+				strncpy(buf, wt.ut_host, bufsize - 1);
+				buf[bufsize - 1] = 0;
+			}
+		}
+
+		if (lseek(fd1, (off_t)(0-2*sizeof(struct utmp)), SEEK_CUR) == -1)
+			break;
+	} while (t == 0);
+
+	return t;
+#endif /* defined(HAVE_LASTLOG_H) && !defined(DISABLE_LASTLOG) */
 }
 
 /*
@@ -85,9 +125,10 @@ void
 record_login(int pid, const char *ttyname, const char *user, uid_t uid,
 	     const char *host, struct sockaddr_in * addr)
 {
-	int fd;
+#if defined(HAVE_LASTLOG_H) && !defined(DISABLE_LASTLOG)
 	struct lastlog ll;
 	char *lastlog;
+#endif /* defined(HAVE_LASTLOG_H) && !defined(DISABLE_LASTLOG) */
 	struct UTMP_STR u;
 	const char *utmp, *wtmp;
 
@@ -110,10 +151,13 @@ record_login(int pid, const char *ttyname, const char *user, uid_t uid,
 	wtmp = _PATH_WTMP;
 
 	login(&u);
+
+#ifdef defined(HAVE_LASTLOG_H) && !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)
@@ -132,6 +176,7 @@ record_login(int pid, const char *ttyname, const char *user, uid_t uid,
 			close(fd);
 		}
 	}
+#endif /* defined(HAVE_LASTLOG_H) && !defined(DISABLE_LASTLOG) */
 }
 
 /* Records that the user has logged out. */
-- 
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