Update.

2002-02-28  Ulrich Drepper  <drepper@redhat.com>

	* login/login.c (login): Always initialize ut_line field
	[PR libc/2991].

3 files changed, 15 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 94ae6c48c4..bd44bd1226 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2002-02-28  Ulrich Drepper  <drepper@redhat.com>
+
+	* login/login.c (login): Always initialize ut_line field
+	[PR libc/2991].
+
 2002-02-28  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/i386/Makefile (sysdep_routines): Add
diff --git a/login/login.c b/login/login.c
index a7a3ff5afa..6efa7627f4 100644
--- a/login/login.c
+++ b/login/login.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -17,6 +17,7 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <assert.h>
 #include <errno.h>
 #include <limits.h>
 #include <string.h>
@@ -133,6 +134,10 @@ login (const struct utmp *ut)
       if (tty != _tty)
 	free (tty);		/* Free buffer malloced by tty_name.  */
     }
+  else
+    /* We provide a default value so that the output does not contain
+       an random bytes in this field.  */
+    strncpy (copy.ut_line, "???", UT_LINESIZE);
 
   /* Update the WTMP file.  Here we have to add a new entry.  */
   updwtmp (_PATH_WTMP, &copy);
diff --git a/stdlib/Versions b/stdlib/Versions
index 274013f0ed..c2e17e0096 100644
--- a/stdlib/Versions
+++ b/stdlib/Versions
@@ -93,6 +93,9 @@ libc {
   GLIBC_PRIVATE {
     # functions which have an additional interface since they are
     # are cancelable.
-    __libc_system; __on_exit;
+    __libc_system;
+
+    # functions used in other libraries.
+    __on_exit;
   }
 }