lokinet/llarp/dns/serialize.cpp

43 lines
932 B
C++

#include <dns/serialize.hpp>
#include <net_int.hpp>
namespace llarp
{
namespace dns
{
bool
EncodeRData(llarp_buffer_t* buf, const std::vector< byte_t >& v)
{
if(v.size() > 65536)
return false;
uint16_t len = v.size();
if(!llarp_buffer_put_uint16(buf, len))
return false;
if(llarp_buffer_size_left(*buf) < len)
return false;
memcpy(buf->cur, v.data(), len);
buf->cur += len;
return true;
}
bool
DecodeRData(llarp_buffer_t* buf, std::vector< byte_t >& v)
{
uint16_t len;
if(!llarp_buffer_read_uint16(buf, &len))
return false;
size_t left = llarp_buffer_size_left(*buf);
if(left < len)
return false;
v.resize(size_t(len));
if(len)
{
memcpy(v.data(), buf->cur, len);
buf->cur += len;
}
return true;
}
} // namespace dns
} // namespace llarp