You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
3.3 KiB
142 lines
3.3 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
|
// Copyright (c) 2009-2014 The Bitcoin Core developers |
|
// Distributed under the MIT software license, see the accompanying |
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
|
|
|
#include "protocol.h" |
|
|
|
#include "util.h" |
|
#include "utilstrencodings.h" |
|
|
|
#ifndef WIN32 |
|
# include <arpa/inet.h> |
|
#endif |
|
|
|
static const char* ppszTypeName[] = |
|
{ |
|
"ERROR", |
|
"tx", |
|
"block", |
|
"filtered block" |
|
}; |
|
|
|
CMessageHeader::CMessageHeader(const MessageStartChars& pchMessageStartIn) |
|
{ |
|
memcpy(pchMessageStart, pchMessageStartIn, MESSAGE_START_SIZE); |
|
memset(pchCommand, 0, sizeof(pchCommand)); |
|
nMessageSize = -1; |
|
nChecksum = 0; |
|
} |
|
|
|
CMessageHeader::CMessageHeader(const MessageStartChars& pchMessageStartIn, const char* pszCommand, unsigned int nMessageSizeIn) |
|
{ |
|
memcpy(pchMessageStart, pchMessageStartIn, MESSAGE_START_SIZE); |
|
memset(pchCommand, 0, sizeof(pchCommand)); |
|
strncpy(pchCommand, pszCommand, COMMAND_SIZE); |
|
nMessageSize = nMessageSizeIn; |
|
nChecksum = 0; |
|
} |
|
|
|
std::string CMessageHeader::GetCommand() const |
|
{ |
|
return std::string(pchCommand, pchCommand + strnlen(pchCommand, COMMAND_SIZE)); |
|
} |
|
|
|
bool CMessageHeader::IsValid(const MessageStartChars& pchMessageStartIn) const |
|
{ |
|
// Check start string |
|
if (memcmp(pchMessageStart, pchMessageStartIn, MESSAGE_START_SIZE) != 0) |
|
return false; |
|
|
|
// Check the command string for errors |
|
for (const char* p1 = pchCommand; p1 < pchCommand + COMMAND_SIZE; p1++) |
|
{ |
|
if (*p1 == 0) |
|
{ |
|
// Must be all zeros after the first zero |
|
for (; p1 < pchCommand + COMMAND_SIZE; p1++) |
|
if (*p1 != 0) |
|
return false; |
|
} |
|
else if (*p1 < ' ' || *p1 > 0x7E) |
|
return false; |
|
} |
|
|
|
// Message size |
|
if (nMessageSize > MAX_SIZE) |
|
{ |
|
LogPrintf("CMessageHeader::IsValid(): (%s, %u bytes) nMessageSize > MAX_SIZE\n", GetCommand(), nMessageSize); |
|
return false; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
|
|
|
|
CAddress::CAddress() : CService() |
|
{ |
|
Init(); |
|
} |
|
|
|
CAddress::CAddress(CService ipIn, uint64_t nServicesIn) : CService(ipIn) |
|
{ |
|
Init(); |
|
nServices = nServicesIn; |
|
} |
|
|
|
void CAddress::Init() |
|
{ |
|
nServices = NODE_NETWORK; |
|
nTime = 100000000; |
|
} |
|
|
|
CInv::CInv() |
|
{ |
|
type = 0; |
|
hash.SetNull(); |
|
} |
|
|
|
CInv::CInv(int typeIn, const uint256& hashIn) |
|
{ |
|
type = typeIn; |
|
hash = hashIn; |
|
} |
|
|
|
CInv::CInv(const std::string& strType, const uint256& hashIn) |
|
{ |
|
unsigned int i; |
|
for (i = 1; i < ARRAYLEN(ppszTypeName); i++) |
|
{ |
|
if (strType == ppszTypeName[i]) |
|
{ |
|
type = i; |
|
break; |
|
} |
|
} |
|
if (i == ARRAYLEN(ppszTypeName)) |
|
throw std::out_of_range(strprintf("CInv::CInv(string, uint256): unknown type '%s'", strType)); |
|
hash = hashIn; |
|
} |
|
|
|
bool operator<(const CInv& a, const CInv& b) |
|
{ |
|
return (a.type < b.type || (a.type == b.type && a.hash < b.hash)); |
|
} |
|
|
|
bool CInv::IsKnownType() const |
|
{ |
|
return (type >= 1 && type < (int)ARRAYLEN(ppszTypeName)); |
|
} |
|
|
|
const char* CInv::GetCommand() const |
|
{ |
|
if (!IsKnownType()) |
|
throw std::out_of_range(strprintf("CInv::GetCommand(): type=%d unknown type", type)); |
|
return ppszTypeName[type]; |
|
} |
|
|
|
std::string CInv::ToString() const |
|
{ |
|
return strprintf("%s %s", GetCommand(), hash.ToString()); |
|
}
|
|
|