#include <stdio.h>
#include <string.h>

#include "addr.h"

int addr_len(const sockaddr_any *addr)
{
	switch (addr->any.sa_family) {
	case AF_INET:
		return sizeof(struct sockaddr_in);
	default:
		return 0;
	}
}

sockaddr_any *addr_parse(blob_t b, sockaddr_any *addr)
{
	memset(addr, 0, sizeof(*addr));
	addr->ipv4.sin_family = AF_INET;
	addr->ipv4.sin_addr.s_addr = blob_inet_addr(b);
	if (addr->ipv4.sin_addr.s_addr == -1)
		return NULL;
	return addr;
}

unsigned long addr_hash(const sockaddr_any *addr)
{
	switch (addr->any.sa_family) {
	case AF_INET:
		return htonl(addr->ipv4.sin_addr.s_addr);
	default:
		return 0;
	}
}

const char *addr_print(const sockaddr_any *addr)
{
	switch (addr->any.sa_family) {
	case AF_INET:
		return inet_ntoa(addr->ipv4.sin_addr);
	default:
		return "unknown";
	}
}

blob_t addr_get_hostaddr_blob(const sockaddr_any *addr)
{
	switch (addr->any.sa_family) {
	case AF_INET:
		return BLOB_BUF(&addr->ipv4.sin_addr);
	default:
		return BLOB_NULL;
	}
}

void addr_push_hostaddr(blob_t *b, const sockaddr_any *addr)
{
	char buf[64];
	blob_t f;
	unsigned int t;

	switch (addr->any.sa_family) {
	case AF_INET:
		t = ntohl(addr->ipv4.sin_addr.s_addr);
		f.ptr = buf;
		f.len = sprintf(buf, "%d.%d.%d.%d",
				(t      ) & 0xff, (t >>  8) & 0xff,
				(t >> 16) & 0xff, (t >> 24) & 0xff);
		break;
	default:
		return;
	}
	blob_push(b, f);
}