From 26a6bae7537c73cb4b713293ce29b7c6d71a542d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pavel=20Jan=C3=ADk?= <Pavel@Janik.cz>
Date: Mon, 15 Dec 2014 11:06:15 +0100
Subject: [PATCH] Add time offset to getpeerinfo output

---
 src/main.cpp     | 4 +++-
 src/net.cpp      | 2 ++
 src/net.h        | 2 ++
 src/rpcnet.cpp   | 2 ++
 src/timedata.cpp | 4 +---
 5 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 7533c32614..d917c6e0ea 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3450,7 +3450,9 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                   pfrom->nStartingHeight, addrMe.ToString(), pfrom->id,
                   remoteAddr);
 
-        AddTimeData(pfrom->addr, nTime);
+        int64_t nTimeOffset = nTime - GetTime();
+        pfrom->nTimeOffset = nTimeOffset;
+        AddTimeData(pfrom->addr, nTimeOffset);
     }
 
 
diff --git a/src/net.cpp b/src/net.cpp
index 42b3c30fb7..95524a8b0f 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -523,6 +523,7 @@ void CNode::copyStats(CNodeStats &stats)
     X(nLastSend);
     X(nLastRecv);
     X(nTimeConnected);
+    X(nTimeOffset);
     X(addrName);
     X(nVersion);
     X(cleanSubVer);
@@ -1934,6 +1935,7 @@ CNode::CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn, bool fIn
     nSendBytes = 0;
     nRecvBytes = 0;
     nTimeConnected = GetTime();
+    nTimeOffset = 0;
     addr = addrIn;
     addrName = addrNameIn == "" ? addr.ToStringIPPort() : addrNameIn;
     nVersion = 0;
diff --git a/src/net.h b/src/net.h
index a475be0b33..af200cf89e 100644
--- a/src/net.h
+++ b/src/net.h
@@ -154,6 +154,7 @@ public:
     int64_t nLastSend;
     int64_t nLastRecv;
     int64_t nTimeConnected;
+    int64_t nTimeOffset;
     std::string addrName;
     int nVersion;
     std::string cleanSubVer;
@@ -235,6 +236,7 @@ public:
     int64_t nLastSend;
     int64_t nLastRecv;
     int64_t nTimeConnected;
+    int64_t nTimeOffset;
     CAddress addr;
     std::string addrName;
     CService addrLocal;
diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp
index 6ddbd62fca..e579856b1f 100644
--- a/src/rpcnet.cpp
+++ b/src/rpcnet.cpp
@@ -91,6 +91,7 @@ Value getpeerinfo(const Array& params, bool fHelp)
             "    \"bytessent\": n,            (numeric) The total bytes sent\n"
             "    \"bytesrecv\": n,            (numeric) The total bytes received\n"
             "    \"conntime\": ttt,           (numeric) The connection time in seconds since epoch (Jan 1 1970 GMT)\n"
+            "    \"timeoffset\": ttt,         (numeric) The time offset in seconds\n"
             "    \"pingtime\": n,             (numeric) ping time\n"
             "    \"pingwait\": n,             (numeric) ping wait\n"
             "    \"version\": v,              (numeric) The peer version, such as 7001\n"
@@ -131,6 +132,7 @@ Value getpeerinfo(const Array& params, bool fHelp)
         obj.push_back(Pair("bytessent", stats.nSendBytes));
         obj.push_back(Pair("bytesrecv", stats.nRecvBytes));
         obj.push_back(Pair("conntime", stats.nTimeConnected));
+        obj.push_back(Pair("timeoffset", stats.nTimeOffset));
         obj.push_back(Pair("pingtime", stats.dPingTime));
         if (stats.dPingWait > 0.0)
             obj.push_back(Pair("pingwait", stats.dPingWait));
diff --git a/src/timedata.cpp b/src/timedata.cpp
index 59f7778db1..2192ed2eff 100644
--- a/src/timedata.cpp
+++ b/src/timedata.cpp
@@ -40,10 +40,8 @@ static int64_t abs64(int64_t n)
     return (n >= 0 ? n : -n);
 }
 
-void AddTimeData(const CNetAddr& ip, int64_t nTime)
+void AddTimeData(const CNetAddr& ip, int64_t nOffsetSample)
 {
-    int64_t nOffsetSample = nTime - GetTime();
-
     LOCK(cs_nTimeOffset);
     // Ignore duplicates
     static set<CNetAddr> setKnown;