Use absolute FQDN for DNS seed domains

Author: Prayank

src/chainparams.cpp

@@ -118,15 +118,15 @@ class CMainParams : public CChainParams {
         // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
         // service bits we want, but we should get them updated to support all service bits wanted by any
         // release ASAP to avoid it where possible.
-        vSeeds.emplace_back("seed.bitcoin.sipa.be"); // Pieter Wuille, only supports x1, x5, x9, and xd
-        vSeeds.emplace_back("dnsseed.bluematt.me"); // Matt Corallo, only supports x9
-        vSeeds.emplace_back("dnsseed.bitcoin.dashjr.org"); // Luke Dashjr
-        vSeeds.emplace_back("seed.bitcoinstats.com"); // Christian Decker, supports x1 - xf
-        vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch"); // Jonas Schnelli, only supports x1, x5, x9, and xd
-        vSeeds.emplace_back("seed.btc.petertodd.org"); // Peter Todd, only supports x1, x5, x9, and xd
-        vSeeds.emplace_back("seed.bitcoin.sprovoost.nl"); // Sjors Provoost
-        vSeeds.emplace_back("dnsseed.emzy.de"); // Stephan Oeste
-        vSeeds.emplace_back("seed.bitcoin.wiz.biz"); // Jason Maurice
+        vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
+        vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
+        vSeeds.emplace_back("dnsseed.bitcoin.dashjr.org."); // Luke Dashjr
+        vSeeds.emplace_back("seed.bitcoinstats.com."); // Christian Decker, supports x1 - xf
+        vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
+        vSeeds.emplace_back("seed.btc.petertodd.org."); // Peter Todd, only supports x1, x5, x9, and xd
+        vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
+        vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
+        vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
 
         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
@@ -230,10 +230,10 @@ class CTestNetParams : public CChainParams {
         vFixedSeeds.clear();
         vSeeds.clear();
         // nodes with support for servicebits filtering should be at the top
-        vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch");
-        vSeeds.emplace_back("seed.tbtc.petertodd.org");
-        vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl");
-        vSeeds.emplace_back("testnet-seed.bluematt.me"); // Just a static list of stable node(s), only supports x9
+        vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
+        vSeeds.emplace_back("seed.tbtc.petertodd.org.");
+        vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
+        vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
 
         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
@@ -280,7 +280,7 @@ class SigNetParams : public CChainParams {
 
         if (!args.IsArgSet("-signetchallenge")) {
             bin = ParseHex("512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae");
-            vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl");
+            vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
 
             // Hardcoded nodes can be removed once there are more DNS seeds
             vSeeds.emplace_back("178.128.221.177");