--- ed-0.2/main.c.orig	2002-08-26 13:56:44 +0400

+++ ed-0.2/main.c	2002-08-26 13:57:43 +0400

@@ -105,7 +105,6 @@

 long err_status = 0;		/* program exit status */

 /* The name this program was run with. */

-char *program_name;

 /* If non-zero, display usage information and exit.  */

 int show_help = 0;

@@ -136,10 +135,10 @@

      int status;

 {

   if (status != 0)

-    fprintf (stderr, "Try `%s --help' for more information.\n", program_name);

+    fprintf (stderr, "Try `%s --help' for more information.\n", program_invocation_short_name);

   else

     {

-      printf ("Usage: %s [OPTION]... [FILE]\n", program_name);

+      printf ("Usage: %s [OPTION]... [FILE]\n", program_invocation_short_name);

       printf ("\

 \n\

   -G, --traditional          use a few backward compatible features\n\

@@ -165,7 +164,9 @@

   int c, n;

   long status = 0;

-  program_name = argv[0];

+  if (argc < 1)

+    usage (1);

+

   red = (n = strlen (argv[0])) > 2 && argv[0][n - 3] == 'r';

 top:

   while ((c = getopt_long (argc, argv, "Gp:s", long_options, NULL)) != EOF)