diff options
| -rw-r--r-- | libvncclient/rfbproto.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libvncclient/rfbproto.c b/libvncclient/rfbproto.c index aa74c23..f121072 100644 --- a/libvncclient/rfbproto.c +++ b/libvncclient/rfbproto.c @@ -1946,7 +1946,10 @@ HandleRFBServerMessage(rfbClient* client) int y=rect.r.y, h=rect.r.h; bytesPerLine = rect.r.w * client->format.bitsPerPixel / 8; - linesToRead = RFB_BUFFER_SIZE / bytesPerLine; + /* RealVNC 4.x-5.x on OSX can induce bytesPerLine==0, + usually during GPU accel. */ + /* Regardless of cause, do not divide by zero. */ + linesToRead = bytesPerLine ? (RFB_BUFFER_SIZE / bytesPerLine) : 0; while (h > 0) { if (linesToRead > h) |