lokinet/llarp/dns/rr.cpp
Stephen Shelton 273270916e
The Great Wall of Blame
This commit reflects changes to clang-format rules. Unfortunately,
these rule changes create a massive change to the codebase, which
causes an apparent rewrite of git history.

Git blame's --ignore-rev flag can be used to ignore this commit when
attempting to `git blame` some code.
2020-04-07 12:38:56 -06:00

110 lines
2.6 KiB
C++

#include <dns/rr.hpp>
#include <dns/dns.hpp>
#include <util/mem.hpp>
#include <util/logging/logger.hpp>
#include <util/printer.hpp>
namespace llarp
{
namespace dns
{
ResourceRecord::ResourceRecord(const ResourceRecord& other)
: rr_name(other.rr_name)
, rr_type(other.rr_type)
, rr_class(other.rr_class)
, ttl(other.ttl)
, rData(other.rData)
{
}
ResourceRecord::ResourceRecord(ResourceRecord&& other)
: rr_name(std::move(other.rr_name))
, rr_type(std::move(other.rr_type))
, rr_class(std::move(other.rr_class))
, ttl(std::move(other.ttl))
, rData(std::move(other.rData))
{
}
bool
ResourceRecord::Encode(llarp_buffer_t* buf) const
{
if (not EncodeName(buf, rr_name))
return false;
if (!buf->put_uint16(rr_type))
{
return false;
}
if (!buf->put_uint16(rr_class))
{
return false;
}
if (!buf->put_uint32(ttl))
{
return false;
}
if (!EncodeRData(buf, rData))
{
return false;
}
return true;
}
bool
ResourceRecord::Decode(llarp_buffer_t* buf)
{
uint16_t discard;
if (!buf->read_uint16(discard))
return false;
if (!buf->read_uint16(rr_type))
{
llarp::LogDebug("failed to decode rr type");
return false;
}
if (!buf->read_uint16(rr_class))
{
llarp::LogDebug("failed to decode rr class");
return false;
}
if (!buf->read_uint32(ttl))
{
llarp::LogDebug("failed to decode ttl");
return false;
}
if (!DecodeRData(buf, rData))
{
llarp::LogDebug("failed to decode rr rdata ", *this);
return false;
}
return true;
}
std::ostream&
ResourceRecord::print(std::ostream& stream, int level, int spaces) const
{
Printer printer(stream, level, spaces);
printer.printAttribute("name", rr_name);
printer.printAttribute("type", rr_type);
printer.printAttribute("class", rr_class);
printer.printAttribute("ttl", ttl);
printer.printAttribute("rdata", rData.size());
return stream;
}
bool
ResourceRecord::HasCNameForTLD(const std::string& tld) const
{
if (rr_type != qTypeCNAME)
return false;
Name_t name;
llarp_buffer_t buf(rData);
if (not DecodeName(&buf, name))
return false;
return name.find(tld) != std::string::npos
&& name.rfind(tld) == (name.size() - tld.size()) - 1;
}
} // namespace dns
} // namespace llarp