From fddbc2311fa6ceeb123f8e0ab602bbc3b9f26da4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stephan=20A=C3=9Fmus?= <superstippi@gmx.de>
Date: Sun, 12 Aug 2007 13:07:55 +0000
Subject: [PATCH] * fix attaching and reading empty regions

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21909 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/kits/app/ServerLink.cpp | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/src/kits/app/ServerLink.cpp b/src/kits/app/ServerLink.cpp
index 95f01e0de6..976edd0113 100644
--- a/src/kits/app/ServerLink.cpp
+++ b/src/kits/app/ServerLink.cpp
@@ -35,11 +35,15 @@ status_t
 ServerLink::ReadRegion(BRegion *region)
 {
 	fReceiver->Read(&region->fCount, sizeof(long));
-	fReceiver->Read(&region->fBounds, sizeof(clipping_rect));
-	if (!region->_SetSize(region->fCount))
-		return B_NO_MEMORY;
-	return fReceiver->Read(region->fData,
-		region->fCount * sizeof(clipping_rect));
+	if (region->fCount > 0) {
+		fReceiver->Read(&region->fBounds, sizeof(clipping_rect));
+		if (!region->_SetSize(region->fCount))
+			return B_NO_MEMORY;
+		return fReceiver->Read(region->fData,
+			region->fCount * sizeof(clipping_rect));
+	} else {
+		return fReceiver->Read(&region->fBounds, sizeof(clipping_rect));
+	}
 }
 
 
@@ -47,9 +51,13 @@ status_t
 ServerLink::AttachRegion(const BRegion &region)
 {
 	fSender->Attach(&region.fCount, sizeof(long));
-	fSender->Attach(&region.fBounds, sizeof(clipping_rect));
-	return fSender->Attach(region.fData,
-		region.fCount * sizeof(clipping_rect));
+	if (region.fCount > 0) {
+		fSender->Attach(&region.fBounds, sizeof(clipping_rect));
+		return fSender->Attach(region.fData,
+			region.fCount * sizeof(clipping_rect));
+	} else {
+		return fSender->Attach(&region.fBounds, sizeof(clipping_rect));
+	}
 }