From f684aec4f38d6a9e48e870ca5dae6bd65da516cf Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Tue, 8 Mar 2011 22:40:50 -0500
Subject: [PATCH 1/2] DNS seeding
---
init.cpp | 3 +++
net.cpp | 27 +++++++++++++++++++++++++++
net.h | 1 +
3 files changed, 31 insertions(+)
diff --git a/init.cpp b/init.cpp
index 9c84dca16..f74a14329 100644
--- a/init.cpp
+++ b/init.cpp
@@ -416,6 +416,9 @@ bool AppInit2(int argc, char* argv[])
}
}
+ if (mapArgs.count("-dnsseed"))
+ DNSAddressSeed();
+
if (mapArgs.count("-paytxfee"))
{
if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee))
diff --git a/net.cpp b/net.cpp
index d18b63eb5..798c7e562 100644
--- a/net.cpp
+++ b/net.cpp
@@ -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");
+}
diff --git a/net.h b/net.h
index f07081619..05ef5e064 100644
--- a/net.h
+++ b/net.h
@@ -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();
From 448b4516ff982052e375d42059bcf0fb7e58589f Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Tue, 8 Mar 2011 22:55:29 -0500
Subject: [PATCH 2/2] dnsseed: fix printf
---
net.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net.cpp b/net.cpp
index 798c7e562..372402f51 100644
--- a/net.cpp
+++ b/net.cpp
@@ -883,7 +883,7 @@ void DNSAddressSeed()
}
}
- printf("%d addresses found from DNS seeds\n");
+ printf("%d addresses found from DNS seeds\n", found);
}