rem: LOG(L_CRIT, "ERROR: sending an empty buffer from %s (%d)\n", function, line );
context: int send_pr_buffer( struct retr_buf *rb,	void *buf, int len, char *function, int line ){	if (buf && len && rb )		return msg_send( rb->dst.send_sock, rb->dst.proto, &rb->dst.to,				         rb->dst.proto_reserved1, buf, len);	else {		LOG(L_CRIT, "ERROR: sending an empty buffer from %s (%d)\n",			function, line );		return -1;	}}