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feathercoin-seeder/protocol.cpp at master · zcore-dev/feathercoin-seeder · GitHub
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//
Copyright (c) 2009-2010 Satoshi Nakamoto
//
Copyright (c) 2011 The Bitcoin developers
//
Distributed under the MIT/X11 software license, see the accompanying
//
file license.txt or http://www.opensource.org/licenses/mit-license.php.
#
include
<
vector
>
#
include
<
stdexcept
>
#
include
"
protocol.h
"
#
include
"
util.h
"
#
include
"
netbase.h
"
#
ifndef
WIN32
#
include
<
arpa/inet.h
>
#
endif
static
const
char
* ppszTypeName[] =
{
"
ERROR
"
,
"
tx
"
,
"
block
"
,
};
unsigned
char
pchMessageStart[
4
] = {
0x1a
,
0x13
,
0xb2
,
0x4b
};
CMessageHeader::CMessageHeader
()
{
memcpy
(pchMessageStart, ::pchMessageStart,
sizeof
(pchMessageStart));
memset
(pchCommand,
0
,
sizeof
(pchCommand));
pchCommand[
1
] =
1
;
nMessageSize = -
1
;
nChecksum =
0
;
}
CMessageHeader::CMessageHeader
(
const
char
* pszCommand,
unsigned
int
nMessageSizeIn)
{
memcpy
(pchMessageStart, ::pchMessageStart,
sizeof
(pchMessageStart));
strncpy
(pchCommand, pszCommand,
COMMAND_SIZE
);
nMessageSize = nMessageSizeIn;
nChecksum =
0
;
}
std::string
CMessageHeader::GetCommand
()
const
{
if
(pchCommand[
COMMAND_SIZE
-
1
] ==
0
)
return
std::string
(pchCommand, pchCommand +
strlen
(pchCommand));
else
return
std::string
(pchCommand, pchCommand +
COMMAND_SIZE
);
}
bool
CMessageHeader::IsValid
()
const
{
//
Check start string
if
(
memcmp
(pchMessageStart, ::pchMessageStart,
sizeof
(pchMessageStart)) !=
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
)
{
printf
(
"
CMessageHeader::IsValid() : (%s, %u bytes) nMessageSize > MAX_SIZE
\n
"
,
GetCommand
().
c_str
(), nMessageSize);
return
false
;
}
return
true
;
}
CAddress::CAddress
() : CService()
{
Init
();
}
CAddress::CAddress
(CService ipIn, uint64 nServicesIn) : CService(ipIn)
{
Init
();
nServices = nServicesIn;
}
void
CAddress::Init
()
{
nServices =
NODE_NETWORK
;
nTime =
100000000
;
}
void
CAddress::print
()
const
{
printf
(
"
CAddress(%s)
\n
"
,
ToString
().
c_str
());
}
CInv::CInv
()
{
type =
0
;
hash =
0
;
}
CInv::CInv
(
int
typeIn,
const
uint256& hashIn)
{
type = typeIn;
hash = hashIn;
}
CInv::CInv
(
const
std::string& strType,
const
uint256& hashIn)
{
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
(
"
CInv::CInv(string, uint256) : unknown type
"
);
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 <
ARRAYLEN
(ppszTypeName));
}
const
char
*
CInv::GetCommand
()
const
{
if
(!
IsKnownType
())
throw
std::out_of_range
(
"
CInv::GetCommand() : unknown type
"
);
return
ppszTypeName[type];
}
std::string
CInv::ToString
()
const
{
return
"
CInv()
"
;
}
void
CInv::print
()
const
{
printf
(
"
CInv
\n
"
);
}
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