#define MAX_SEGMENT_SIZE 32768

....CUT......

libssh2_session_set_blocking(myssh_session, 0);

 do {
 		
		do {
				  
        char mem[MAX_SEGMENT_SIZE];

        if (tbd < MAX_SEGMENT_SIZE)
        		get_this = tbd;
        else
        		get_this = MAX_SEGMENT_SIZE;
         	
        rc = libssh2_sftp_read(mysftp_handle, mem, get_this);
        		if (rc > 0) 
	        		{
	        			printf ("Got %d bytes",rc);
	        			fflush (NULL);
		        		tbd = tbd - rc;
		            rwr = fwrite(mem, rc , 1,stream);
		            if (rwr != 1)
		            	{
		            			// Local filesystem error - return immediately
				            	fclose (stream);	
				            	return SSHREAD_ERRORWRITINGLOCAL;
		            	}
		            
		        	} 
		        if ( tbd == 0) break; 
    		} while (rc > 0 ); 
    	
    	if (tbd == 0) break; //end of download
    	
    	if (rc != LIBSSH2_ERROR_EAGAIN) 
    		{	
        					fclose (stream);		            	
        					switch (rc)
												{
														case LIBSSH2_ERROR_ALLOC :
															retu = SSHREAD_INTERNAL_ALLOC_ERROR;   
														break;
															        
														case LIBSSH2_ERROR_SOCKET_SEND:
															retu = SSHREAD_FAILED_SEND;
														break;
														
														case LIBSSH2_ERROR_SOCKET_TIMEOUT:
															retu = SSHREAD_TIMED_OUT;	
														break;
														
														case LIBSSH2_ERROR_SFTP_PROTOCOL:
															retu = SSHREAD_INVALIDRESPONSE;
														break;
																													
														default:
															retu = SSHREAD_GENERIC;
														break;	
												}
												break; 
        	}
    	
   			
   			my_timeout.tv_sec = 10;
        my_timeout.tv_usec = 0;

        FD_ZERO(&myfd);

        FD_SET(my_sock, &myfd);
        
        /* wait for readable or writeable */
        rc = select(my_sock+1, &myfd, &myfd, NULL, &my_timeout);
        if(rc <= 0) 
        	{
            	fclose (stream);
            	retu = SSHREAD_TIMEOUTRESPONSE;
            	break;
        	}
     } while (1); // End of second do