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DNS seeding

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This commit is contained in:
Jeff Garzik 2011-03-08 22:40:50 -05:00 committed by Jeff Garzik
parent f36b494aeb
commit f684aec4f3
3 changed files with 31 additions and 0 deletions
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3
init.cpp
View file

@ -416,6 +416,9 @@ bool AppInit2(int argc, char* argv[])
}
}
if (mapArgs.count("-dnsseed"))
DNSAddressSeed();
if (mapArgs.count("-paytxfee"))
{
if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee))

27
net.cpp
View file

@ -857,7 +857,34 @@ void ThreadSocketHandler2(void* parg)
static const char *strDNSSeed[] = {
"bitseed.xf2.org",
};
void DNSAddressSeed()
{
int found = 0;
printf("Loading addresses from DNS seeds (could take a while)\n");
for (int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
struct hostent* phostent = gethostbyname(strDNSSeed[seed_idx]);
if (!phostent)
continue;
for (int host = 0; phostent->h_addr_list[host] != NULL; host++) {
CAddress addr(*(unsigned int*)phostent->h_addr_list[host],
GetDefaultPort(), NODE_NETWORK);
addr.nTime = 0;
if (addr.IsValid() && addr.GetByte(3) != 127) {
AddAddress(addr);
found++;
}
}
}
printf("%d addresses found from DNS seeds\n");
}

1
net.h
View file

@ -30,6 +30,7 @@ CNode* FindNode(unsigned int ip);
CNode* ConnectNode(CAddress addrConnect, int64 nTimeout=0);
void AbandonRequests(void (*fn)(void*, CDataStream&), void* param1);
bool AnySubscribed(unsigned int nChannel);
void DNSAddressSeed();
bool BindListenPort(string& strError=REF(string()));
void StartNode(void* parg);
bool StopNode();