(savedir): Don't store past the end of an array if

name_size is zero and the directory is empty.

diff --git a/lib/savedir.c b/lib/savedir.c
index 5987319d02fc68aba5ae82e3c8023a79b66b831d..29b3842c04022bd00276b07cbf45b2c9febc6617 100644 (file)
--- a/lib/savedir.c
+++ b/lib/savedir.c
@@ -1,5 +1,5 @@
 /* savedir.c -- save the list of files in a directory in a string
-   Copyright (C) 1990, 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -87,6 +87,10 @@ savedir (const char *dir, off_t name_size)
   if (dirp == NULL)
     return NULL;
 
+  /* Be sure name_size is at least `1' so there's room for
+     the final NUL byte.  */
+  name_size += !name_size;
+
   name_space = (char *) malloc (name_size);
   if (name_space == NULL)
     {