$NetBSD: patch-au,v 1.1 1998/09/10 16:36:12 kim Exp $

--- login.c.orig	Tue Jan 20 07:24:05 1998
+++ login.c	Tue Feb 24 09:43:51 1998
@@ -227,6 +227,19 @@
   struct utmp u, u2;
   off_t offset;
   const char *utmp, *wtmp;
+#if defined(HAVE_HOST_IN_UTMP) || defined(HAVE_LASTLOG_H) || defined(HAVE_LASTLOG)
+  char myname[MAXHOSTNAMELEN];
+  char shost[MAXHOSTNAMELEN];
+  char *p = NULL, *q = NULL;
+
+  memset(shost, 0, sizeof(shost));
+  gethostname(myname, MAXHOSTNAMELEN);
+  if (((p = memchr(myname, '.', MAXHOSTNAMELEN)) != NULL)
+    && ((q = strchr(host, '.')) != NULL)
+    && (strncmp(p, q, MAXHOSTNAMELEN - (p - myname)) == 0)) {
+    strncpy(shost, host, q - host);
+  }
+#endif
 
   /* Construct an utmp/wtmp entry. */
   memset(&u, 0, sizeof(u));
@@ -257,12 +270,14 @@
   strncpy(u.ut_user, user, sizeof(u.ut_user));
 #endif /* HAVE_NAME_IN_UTMP */
 #ifdef HAVE_HOST_IN_UTMP
-  strncpy(u.ut_host, host, sizeof(u.ut_host));
-#ifdef __FreeBSD__
-  if (strlen(host) > sizeof(u.ut_host)) {
+  if ((*shost != '\0') && (strlen(shost) <= sizeof(u.ut_host)))
+    strncpy(u.ut_host, shost, sizeof(u.ut_host));
+#ifndef HAVE_ADDR_IN_UTMP
+  else if (strlen(host) > sizeof(u.ut_host))
     strncpy(u.ut_host, get_remote_ipaddr(), sizeof(u.ut_host));
-  }
-#endif /* __FreeBSD__ */
+#endif /* HAVE_ADDR_IN_UTMP */
+  else
+    strncpy(u.ut_host, host, sizeof(u.ut_host));
 #endif /* HAVE_HOST_IN_UTMP */
 #ifdef HAVE_ADDR_IN_UTMP
   if (addr)
@@ -431,7 +446,12 @@
       /* 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));
+      if ((*shost != '\0') && (strlen(shost) <= sizeof(ll.ll_host)))
+        strncpy(ll.ll_host, shost, sizeof(ll.ll_host));
+      else if (strlen(host) > sizeof(ll.ll_host))
+        strncpy(ll.ll_host, get_remote_ipaddr(), sizeof(ll.ll_host));
+      else
+        strncpy(ll.ll_host, host, sizeof(ll.ll_host));
 #ifdef LASTLOG_IS_DIR
       sprintf(lastlogfile, "%.100s/%.100s", lastlog, user);
       fd = open(lastlogfile, O_WRONLY | O_CREAT, 0644);