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2008-02-28 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 

Fixed the previous insufficient fix for possible busy loop.
	* src/MSEHandshake.cc (identifyHandshakeType)

	Removed unused functions.
	* src/MSEHandshake.{h, cc} (readDataAndDecrypt)
pull/1/head
Tatsuhiro Tsujikawa 2008-02-28 14:18:12 +00:00
parent 50bb9bd36d
commit c766d945ef
3 changed files with 14 additions and 15 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2008-02-28 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>
Fixed the previous insufficient fix for possible busy loop.
* src/MSEHandshake.cc (identifyHandshakeType)
Removed unused functions.
* src/MSEHandshake.{h, cc} (readDataAndDecrypt)
2008-02-28 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>
Fixed possible busy loop if first 20 bytes are not received for a few

19
src/MSEHandshake.cc
View File

@ -91,9 +91,12 @@ MSEHandshake::HANDSHAKE_TYPE MSEHandshake::identifyHandshakeType()
if(!_socket->isReadable(0)) {
return HANDSHAKE_NOT_YET;
}
int32_t bufLength = 20-_rbufLength;
_socket->readData(_rbuf+_rbufLength, bufLength);
_rbufLength += bufLength;
int32_t r = 20-_rbufLength;
_socket->readData(_rbuf+_rbufLength, r);
if(r == 0) {
throw new DlAbortEx(EX_EOF_FROM_PEER);
}
_rbufLength += r;
if(_rbufLength < 20) {
return HANDSHAKE_NOT_YET;
}
@ -180,16 +183,6 @@ void MSEHandshake::initCipher(const unsigned char* infoHash)
}
}
ssize_t MSEHandshake::readDataAndDecrypt(unsigned char* data, size_t length)
{
unsigned char temp[MAX_BUFFER_LENGTH];
assert(MAX_BUFFER_LENGTH >= length);
int32_t rlength = length;
_socket->readData(temp, rlength);
_decryptor->decrypt(data, rlength, temp, rlength);
return rlength;
}
void MSEHandshake::encryptAndSendData(const unsigned char* data, size_t length)
{
unsigned char temp[4096];

2
src/MSEHandshake.h
View File

@ -102,8 +102,6 @@ private:
static const unsigned char VC[VC_LENGTH];
ssize_t readDataAndDecrypt(unsigned char* data, size_t length);
void encryptAndSendData(const unsigned char* data, size_t length);
void createReq1Hash(unsigned char* md) const;