From fab27e479ab68d1a88ea52296b2ebd1e5e9645f8 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 7 Jun 2010 18:37:16 +0000
Subject: 2010-06-07	Joel Sherrill <joel.sherrill@oarcorp.com>

	* libcsupport/src/tcflow.c, libcsupport/src/tcflush.c: Add switches
	to detect bad input.
	* libcsupport/src/tcsetpgrp.c: Fix typo.
---
 cpukit/libcsupport/src/tcflow.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

(limited to 'cpukit/libcsupport/src/tcflow.c')

diff --git a/cpukit/libcsupport/src/tcflow.c b/cpukit/libcsupport/src/tcflow.c
index b329224b45..d4d3945f38 100644
--- a/cpukit/libcsupport/src/tcflow.c
+++ b/cpukit/libcsupport/src/tcflow.c
@@ -1,7 +1,7 @@
 /*
  *  tcflow() - POSIX 1003.1b 7.2.2 - Line Control Functions
  *
- *  COPYRIGHT (c) 1989-1999.
+ *  COPYRIGHT (c) 1989-2010.
  *  On-Line Applications Research Corporation (OAR).
  *
  *  The license and distribution terms for this file may be
@@ -18,12 +18,27 @@
 #if defined(RTEMS_NEWLIB)
 #include <termios.h>
 #include <unistd.h>
+#include <errno.h>
+#include <rtems/seterr.h>
 
 int tcflow (
   int fd __attribute__((unused)),
-  int action __attribute__((unused)))
+  int action
+)
 {
-  return 0;
+  switch (action) {
+    case TCOOFF:
+    case TCOON:
+    case TCIOFF:
+    case TCION:
+    default:
+      rtems_set_errno_and_return_minus_one( EINVAL );
+  }
+
+  /* fd is not validated */
+
+  /* When this is supported, implement it here */
+  rtems_set_errno_and_return_minus_one( ENOTSUP );
 }
 
 #endif
-- 
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