From 224903aa91433fc0d155b26c83823c177a9c3eee Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Wed, 27 Jun 2012 20:24:56 -0500
Subject: Automated update from Qt3

---
 src/tools/qdatastream.cpp | 80 ++++++++++++++++++++++++++---------------------
 1 file changed, 45 insertions(+), 35 deletions(-)

diff --git a/src/tools/qdatastream.cpp b/src/tools/qdatastream.cpp
index 33cec9b37..7b4f605a7 100644
--- a/src/tools/qdatastream.cpp
+++ b/src/tools/qdatastream.cpp
@@ -544,7 +544,10 @@ TQDataStream &TQDataStream::operator>>( TQ_INT8 &i )
 	    i = (buf[2] & 0x07)+((buf[1] & 0x07) << 3)+((buf[0] & 0x07) << 6);
 	}
     } else {					// data or text
-	i = (TQ_INT8)dev->getch();
+	int ret = dev->getch();
+	if (ret >= 0) {
+		i = (TQ_INT8)ret;
+	}
     }
     return *this;
 }
@@ -574,9 +577,10 @@ TQDataStream &TQDataStream::operator>>( TQ_INT16 &i )
     } else {					// swap bytes
 	register uchar *p = (uchar *)(&i);
 	char b[2];
-	dev->readBlock( b, 2 );
-	*p++ = b[1];
-	*p   = b[0];
+	if (dev->readBlock( b, 2 ) >= 2) {
+		*p++ = b[1];
+		*p   = b[0];
+	}
     }
     return *this;
 }
@@ -606,11 +610,12 @@ TQDataStream &TQDataStream::operator>>( TQ_INT32 &i )
     } else {					// swap bytes
 	uchar *p = (uchar *)(&i);
 	char b[4];
-	dev->readBlock( b, 4 );
-	*p++ = b[3];
-	*p++ = b[2];
-	*p++ = b[1];
-	*p   = b[0];
+	if (dev->readBlock( b, 4 ) >= 4) {
+		*p++ = b[3];
+		*p++ = b[2];
+		*p++ = b[1];
+		*p   = b[0];
+	}
     }
     return *this;
 }
@@ -643,15 +648,16 @@ TQDataStream &TQDataStream::operator>>( TQ_INT64 &i )
     } else {					// swap bytes
 	uchar *p = (uchar *)(&i);
 	char b[8];
-	dev->readBlock( b, 8 );
-	*p++ = b[7];
-	*p++ = b[6];
-	*p++ = b[5];
-	*p++ = b[4];
-	*p++ = b[3];
-	*p++ = b[2];
-	*p++ = b[1];
-	*p   = b[0];
+	if (dev->readBlock( b, 8 ) >= 8) {
+		*p++ = b[7];
+		*p++ = b[6];
+		*p++ = b[5];
+		*p++ = b[4];
+		*p++ = b[3];
+		*p++ = b[2];
+		*p++ = b[1];
+		*p   = b[0];
+	}
     }
     return *this;
 }
@@ -683,9 +689,11 @@ TQDataStream &TQDataStream::operator>>( TQ_LONG &i )
     } else {					// swap bytes
 	register uchar *p = (uchar *)(&i);
 	char b[sizeof(TQ_LONG)];
-	dev->readBlock( b, sizeof(TQ_LONG) );
-	for ( int j = sizeof(TQ_LONG); j;  )
-	    *p++ = b[--j];
+	if (dev->readBlock( b, sizeof(TQ_LONG) ) >= (int)sizeof(TQ_LONG)) {
+		for ( int j = sizeof(TQ_LONG); j;  ) {
+			*p++ = b[--j];
+		}
+	}
     }
     return *this;
 }
@@ -724,11 +732,12 @@ TQDataStream &TQDataStream::operator>>( float &f )
     } else {					// swap bytes
 	uchar *p = (uchar *)(&f);
 	char b[4];
-	dev->readBlock( b, 4 );
-	*p++ = b[3];
-	*p++ = b[2];
-	*p++ = b[1];
-	*p   = b[0];
+	if (dev->readBlock( b, 4 ) >= 4) {
+		*p++ = b[3];
+		*p++ = b[2];
+		*p++ = b[1];
+		*p   = b[0];
+	}
     }
     return *this;
 }
@@ -752,15 +761,16 @@ TQDataStream &TQDataStream::operator>>( double &f )
     } else {					// swap bytes
 	register uchar *p = (uchar *)(&f);
 	char b[8];
-	dev->readBlock( b, 8 );
-	*p++ = b[7];
-	*p++ = b[6];
-	*p++ = b[5];
-	*p++ = b[4];
-	*p++ = b[3];
-	*p++ = b[2];
-	*p++ = b[1];
-	*p   = b[0];
+	if (dev->readBlock( b, 8 ) >= 8) {
+		*p++ = b[7];
+		*p++ = b[6];
+		*p++ = b[5];
+		*p++ = b[4];
+		*p++ = b[3];
+		*p++ = b[2];
+		*p++ = b[1];
+		*p   = b[0];
+	}
     }
     return *this;
 }
-- 
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