From 5dddd977f26f956ca61c4bb89e28c0f25d013ae2 Mon Sep 17 00:00:00 2001
From: Hardening <rdp.effort@gmail.com>
Date: Tue, 10 Feb 2015 10:08:39 +0100
Subject: [PATCH] Check return value for fcntl()

---
 winpr/libwinpr/pipe/pipe.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/winpr/libwinpr/pipe/pipe.c b/winpr/libwinpr/pipe/pipe.c
index e7b2d51e3..c5524d239 100644
--- a/winpr/libwinpr/pipe/pipe.c
+++ b/winpr/libwinpr/pipe/pipe.c
@@ -452,13 +452,16 @@ BOOL SetNamedPipeHandleState(HANDLE hNamedPipe, LPDWORD lpMode, LPDWORD lpMaxCol
 			return FALSE;
 
 		flags = fcntl(fd, F_GETFL);
+		if (flags < 0)
+			return FALSE;
 
 		if (pNamedPipe->dwPipeMode & PIPE_NOWAIT)
 			flags = (flags | O_NONBLOCK);
 		else
 			flags = (flags & ~(O_NONBLOCK));
 
-		fcntl(fd, F_SETFL, flags);
+		if (fcntl(fd, F_SETFL, flags) < 0)
+			return FALSE;
 	}
 
 	if (lpMaxCollectionCount)