1 files changed, 0 insertions, 116 deletions
diff --git a/libs/libnet/dns.c b/libs/libnet/dns.c
deleted file mode 100644
index e179bd6..0000000
--- a/libs/libnet/dns.c
+++ /dev/null
@@ -1,116 +0,0 @@
-// MIT License, Copyright (c) 2020 Marvin Borner
-// TODO: Less magic, auto xld splitting
-// TODO: DNS cache
-
-#include <def.h>
-#include <libnet/net.h>
-#include <libnet/socket.h>
-#include <mem.h>
-#include <print.h>
-#include <random.h>
-#include <str.h>
-
-static u32 dns_ip_addr = ip(1, 1, 1, 1);
-
-struct dns_packet {
-	u16 qid;
-	u16 flags;
-	u16 questions;
-	u16 answers;
-	u16 authorities;
-	u16 additional;
-	u8 data[];
-} PACKED;
-
-static u32 part_count(const char *name)
-{
-	u32 cnt = 0;
-	for (u32 i = 0; i < strlen(name); i++) {
-		if (name[i] == '.')
-			cnt++;
-	}
-	return cnt + 1;
-}
-
-static u32 part_len(const char *name, u32 index)
-{
-	const char *data = name;
-
-	u32 cnt = 0;
-	for (u32 i = 0; i < strlen(name); i++) {
-		if (cnt == index) {
-			data += i;
-			break;
-		}
-
-		if (name[i] == '.')
-			cnt++;
-	}
-
-	for (cnt = 0; cnt < strlen(data); cnt++) {
-		if (data[cnt] == '.' || data[cnt] == '\0')
-			break;
-	}
-
-	return cnt;
-}
-
-static void dns_make_packet(struct dns_packet *packet, const char *name)
-{
-	packet->qid = htons(rand());
-	packet->flags = htons(0x0100); // Standard query
-	packet->questions = htons(1);
-	packet->answers = htons(0);
-	packet->authorities = htons(0);
-	packet->additional = htons(0);
-
-	u8 *data = packet->data;
-	u32 cnt = 0;
-	for (u32 i = 0; i < part_count(name) * 2; i += 2) {
-		data[cnt] = part_len(name, i / 2);
-		memcpy(&data[cnt + 1], &name[cnt], data[cnt]);
-		cnt += data[cnt] + 1;
-	}
-
-	packet->data[cnt + 0] = 0x00; // Name end
-	packet->data[cnt + 2] = 0x01; // A
-	packet->data[cnt + 4] = 0x01; // IN
-}
-
-static u32 dns_handle_packet(struct dns_packet *packet)
-{
-	u16 flags = htons(packet->flags);
-	u8 reply_code = flags & 0xf;
-	if (reply_code != DNS_NOERROR) {
-		printf("DNS error: %d\n", reply_code);
-		return 0;
-	}
-
-	u8 *start = &packet->data[1] + strlen((char *)&packet->data[1]);
-	printf("TTL of %s: %ds\n", &packet->data[1], (u32)start[14]);
-	u8 *ip = &start[17];
-	printf("IP: %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
-	return ip(ip[0], ip[1], ip[2], ip[3]);
-}
-
-u32 dns_request(const char *name)
-{
-	struct socket *socket = net_open(S_UDP);
-	if (!socket || !net_connect(socket, dns_ip_addr, 53, NET_TIMEOUT) || part_count(name) == 1)
-		return 0;
-
-	u32 length = sizeof(struct dns_packet) + strlen(name) + part_count(name) + 4;
-	struct dns_packet *packet = malloc(length);
-	memset(packet, 0, length);
-	dns_make_packet(packet, name);
-	net_send(socket, packet, length);
-	free(packet);
-
-	u8 buf[1024] = { 0 };
-	int l = net_receive(socket, buf, 1024, NET_TIMEOUT);
-	net_close(socket);
-	if (l > 0)
-		return dns_handle_packet((void *)buf);
-	else
-		return 0;
-}