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log fewer false positive udp tracker errors (when we can't find the transaction ID)

This commit is contained in:
Arvid Norberg 2015-04-10 04:20:20 +00:00
parent c47699005f
commit 10cbe7f969
1 changed files with 9 additions and 9 deletions
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18
src/tracker_manager.cpp
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@ -349,22 +349,22 @@ namespace libtorrent
, char const* hostname, char const* buf, int size)
{
// ignore packets smaller than 8 bytes
if (size < 8)
{
#if defined TORRENT_LOGGING
m_ses.session_log("incoming packet from %s, not a UDP tracker message "
"(%d Bytes)", hostname, size);
#endif
return false;
}
if (size < 16) return false;
// the first word is the action, if it's not [0, 3]
// it's not a valid udp tracker response
const char* ptr = buf;
boost::uint32_t action = detail::read_uint32(ptr);
if (action > 3) return false;
const char* ptr = buf + 4;
boost::uint32_t transaction = detail::read_uint32(ptr);
udp_conns_t::iterator i = m_udp_conns.find(transaction);
if (i == m_udp_conns.end())
{
#if defined TORRENT_LOGGING
// now, this may not have been meant to be a tracker response,
// but chances are pretty good, so it's probably worth logging
m_ses.session_log("incoming UDP tracker packet from %s has invalid "
"transaction ID (%x)", hostname, int(transaction));
#endif