Output file write error --- out of disk space ?

[DARCAM]

Hello I'm a french user. I am working on a project called : CMUCAM WEB SERVER I want to use the CMUCAM3 as an IP camera. Before sending a jpeg image through internet I need to know its size in bytes for create the HTTP header. But I have a problem, after a certain number of images sent the camera stops. Herewith a piece of the program which highlights the problem. After 413 occurrences I have the following message: "Output file write error --- out of disk space ?" I do not understand because I save the image still under the same name "c:/cmucam.jpg"... Please can you help me