X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-ttyname_r.c;h=980d14e5bd14ff4dfd4a70d11e5e1585aa33ebd3;hb=790fade563cb6461d9f2b78775e8bd53e66a2566;hp=b82f876f2f6520114bd913bff4a6cfe4fe0cb324;hpb=3e8e7f402892d81ed5b20597b2c1c70723b82bb2;p=gnulib.git

diff --git a/tests/test-ttyname_r.c b/tests/test-ttyname_r.c
index b82f876f2..980d14e5b 100644
--- a/tests/test-ttyname_r.c
+++ b/tests/test-ttyname_r.c
@@ -1,5 +1,5 @@
 /* Test of ttyname_r(3).
-   Copyright (C) 2010 Free Software Foundation, Inc.
+   Copyright (C) 2010-2013 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
@@ -47,5 +47,21 @@ main (void)
   ASSERT (ttyname_r (fd, buf, sizeof (buf)) == 0);
   ASSERT (memcmp (buf, "/dev/", 5) == 0);
 
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    int err = ttyname_r (-1, buf, sizeof (buf));
+    ASSERT (err == EBADF
+            || err == ENOTTY /* seen on FreeBSD 6.4 */
+           );
+  }
+  {
+    int err;
+    close (99);
+    err = ttyname_r (99, buf, sizeof (buf));
+    ASSERT (err == EBADF
+            || err == ENOTTY /* seen on FreeBSD 6.4 */
+           );
+  }
+
   return 0;
 }