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-rw-r--r--cpukit/libcsupport/src/tcflush.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/cpukit/libcsupport/src/tcflush.c b/cpukit/libcsupport/src/tcflush.c
index b05a88e8c0..6546966384 100644
--- a/cpukit/libcsupport/src/tcflush.c
+++ b/cpukit/libcsupport/src/tcflush.c
@@ -1,7 +1,7 @@
/*
* tcflush() - 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
@@ -24,12 +24,26 @@
#include <termios.h>
/* #include <sys/ioctl.h> */
+#include <rtems/seterr.h>
#include <rtems/libio.h>
int tcflush (
int fd __attribute__((unused)),
- int queue __attribute__((unused)) )
+ int queue
+)
{
+ switch (queue) {
+ case TCIFLUSH:
+ case TCOFLUSH:
+ case TCIOFLUSH:
+ 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 );
return 0;
}