diff options
| -rw-r--r-- | krdc/vnc/rfbproto.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/krdc/vnc/rfbproto.c b/krdc/vnc/rfbproto.c index 587e9d1c..82aa9af2 100644 --- a/krdc/vnc/rfbproto.c +++ b/krdc/vnc/rfbproto.c @@ -982,7 +982,10 @@ HandleRFBServerMessage() case rfbEncodingRaw: bytesPerLine = rect.r.w * myFormat.bitsPerPixel / 8; - linesToRead = 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 ? (BUFFER_SIZE / bytesPerLine) : 0; while (rect.r.h > 0) { if (linesToRead > rect.r.h) |