public int LoadFrom(byte[] bytes, int offset, ushort count)
{
int currentOffset = offset;
for (int index = 0; index < count; index++)
{
// TODO: move this code into the Question object
Question question = new Question();
question.Name = DnsProtocol.ReadString(bytes, ref currentOffset);
question.Type = (ResourceType)(BitConverter.ToUInt16(bytes, currentOffset).SwapEndian());
currentOffset += 2;
question.Class = (ResourceClass)(BitConverter.ToUInt16(bytes, currentOffset).SwapEndian());
currentOffset += 2;
this.Add(question);
}
int bytesRead = currentOffset - offset;
return(bytesRead);
}
public static DomainNamePointRData Parse(byte[] bytes, int offset, int size)
{
DomainNamePointRData domainName = new DomainNamePointRData();
domainName.Name = DnsProtocol.ReadString(bytes, ref offset);
return(domainName);
}
public static CNameRData Parse(byte[] bytes, int offset, int size)
{
CNameRData cname = new CNameRData();
cname.Name = DnsProtocol.ReadString(bytes, ref offset);
return(cname);
}
public static NameServerRData Parse(byte[] bytes, int offset, int size)
{
NameServerRData nsRdata = new NameServerRData();
nsRdata.Name = DnsProtocol.ReadString(bytes, ref offset);
return(nsRdata);
}
public static StatementOfAuthorityRData Parse(byte[] bytes, int offset, int size)
{
StatementOfAuthorityRData soaRdata = new StatementOfAuthorityRData();
soaRdata.PrimaryNameServer = DnsProtocol.ReadString(bytes, ref offset);
soaRdata.ResponsibleAuthoritativeMailbox = DnsProtocol.ReadString(bytes, ref offset);
soaRdata.Serial = DnsProtocol.ReadUint(bytes, ref offset).SwapEndian();
soaRdata.RefreshInterval = DnsProtocol.ReadUint(bytes, ref offset).SwapEndian();
soaRdata.RetryInterval = DnsProtocol.ReadUint(bytes, ref offset).SwapEndian();
soaRdata.ExpirationLimit = DnsProtocol.ReadUint(bytes, ref offset).SwapEndian();
soaRdata.MinimumTTL = DnsProtocol.ReadUint(bytes, ref offset).SwapEndian();
return(soaRdata);
}
public int LoadFrom(byte[] bytes, int offset, ushort count)
{
int currentOffset = offset;
for (int index = 0; index < count; index++)
{
// TODO: move this code into the Resource object
Resource resource = new Resource();
//// extract the domain, question type, question class and Ttl
resource.Name = DnsProtocol.ReadString(bytes, ref currentOffset);
resource.Type = (ResourceType)(BitConverter.ToUInt16(bytes, currentOffset).SwapEndian());
currentOffset += sizeof(ushort);
resource.Class = (ResourceClass)(BitConverter.ToUInt16(bytes, currentOffset).SwapEndian());
currentOffset += sizeof(ushort);
resource.TTL = BitConverter.ToUInt32(bytes, currentOffset).SwapEndian();
currentOffset += sizeof(uint);
resource.DataLength = BitConverter.ToUInt16(bytes, currentOffset).SwapEndian();
currentOffset += sizeof(ushort);
if (resource.Class == ResourceClass.IN && resource.Type == ResourceType.A)
{
resource.RData = ANameRData.Parse(bytes, currentOffset, resource.DataLength);
}
else if (resource.Type == ResourceType.CNAME)
{
resource.RData = CNameRData.Parse(bytes, currentOffset, resource.DataLength);
}
// move past resource data record
currentOffset = currentOffset + resource.DataLength;
this.Add(resource);
}
int bytesRead = currentOffset - offset;
return(bytesRead);
}