From aa1ed281856ed207f1fc1f8a60ffcf32330c8fc2 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 21 Sep 2004 22:05:52 +0000
Subject: Reject unknown options.

---
 src/unlink.c | 20 +++++++-------------
 src/yes.c    | 18 ++++++------------
 2 files changed, 13 insertions(+), 25 deletions(-)

(limited to 'src')

diff --git a/src/unlink.c b/src/unlink.c
index 079c169be..5806ec8b0 100644
--- a/src/unlink.c
+++ b/src/unlink.c
@@ -73,29 +73,23 @@ main (int argc, char **argv)
 
   parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
 		      usage, AUTHORS, (char const *) NULL);
+  if (getopt (argc, argv, "") != -1)
+    usage (EXIT_FAILURE);
 
-  /* The above handles --help and --version.
-     Since there is no other invocation of getopt, handle `--' here.  */
-  if (1 < argc && STREQ (argv[1], "--"))
-    {
-      --argc;
-      ++argv;
-    }
-
-  if (argc < 2)
+  if (argc < optind + 1)
     {
       error (0, 0, _("missing operand"));
       usage (EXIT_FAILURE);
     }
 
-  if (2 < argc)
+  if (optind + 1 < argc)
     {
-      error (0, 0, _("extra operand %s"), quote (argv[2]));
+      error (0, 0, _("extra operand %s"), quote (argv[optind + 1]));
       usage (EXIT_FAILURE);
     }
 
-  if (unlink (argv[1]) != 0)
-    error (EXIT_FAILURE, errno, _("cannot unlink %s"), quote (argv[1]));
+  if (unlink (argv[optind]) != 0)
+    error (EXIT_FAILURE, errno, _("cannot unlink %s"), quote (argv[optind]));
 
   exit (EXIT_SUCCESS);
 }
diff --git a/src/yes.c b/src/yes.c
index 56b15f736..6d0068662 100644
--- a/src/yes.c
+++ b/src/yes.c
@@ -73,25 +73,19 @@ main (int argc, char **argv)
 
   parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
 		      usage, AUTHORS, (char const *) NULL);
+  if (getopt (argc, argv, "+") != -1)
+    usage (EXIT_FAILURE);
 
-  /* The above handles --help and --version.
-     Since there is no other invocation of getopt, handle `--' here.  */
-  if (1 < argc && STREQ (argv[1], "--"))
+  if (argc <= optind)
     {
-      --argc;
-      ++argv;
-    }
-
-  if (argc == 1)
-    {
-      argv[1] = "y";
-      argc = 2;
+      optind = argc;
+      argv[argc++] = "y";
     }
 
   for (;;)
     {
       int i;
-      for (i = 1; i < argc; i++)
+      for (i = optind; i < argc; i++)
 	if (fputs (argv[i], stdout) == EOF
 	    || putchar (i == argc - 1 ? '\n' : ' ') == EOF)
 	  {
-- 
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