I've realised that I was also talking nonsense about the buffer being allocated more than once. I looked at the code, properly this time:
Code:
	static char *recvbuf = NULL;
	struct sockaddr ina;
	struct sockaddr_in *ina_in = NULL;
	socklen_t slen = sizeof(struct sockaddr);
	int bytes_read;

	if(!recvbuf)
		recvbuf = xcalloc(1, RECV_BUF_SIZE);

This time I noticed the static declaration and the check for NULL before allocating blush

So I was wrong about most of what I said, but I still stand by my claim that increasing the buffer size would have no effect wink
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Remind me to change my signature to something more interesting someday