1 files changed, 28 insertions, 0 deletions
diff --git a/src/version.cpp b/src/version.cpp
index d86caa3ac2..8311041ed2 100644
--- a/src/version.cpp
+++ b/src/version.cpp
@@ -4,7 +4,10 @@
 
 #include "version.h"
 
+#include "tinyformat.h"
+
 #include <string>
+#include <boost/algorithm/string/join.hpp>
 
 // Name of client reported in the 'version' message. Report the same name
 // for both bitcoind and bitcoin-qt, to make it harder for attackers to
@@ -69,3 +72,28 @@ const std::string CLIENT_NAME("Satoshi");
 
 const std::string CLIENT_BUILD(BUILD_DESC CLIENT_VERSION_SUFFIX);
 const std::string CLIENT_DATE(BUILD_DATE);
+
+static std::string FormatVersion(int nVersion)
+{
+    if (nVersion%100 == 0)
+        return strprintf("%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100);
+    else
+        return strprintf("%d.%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100, nVersion%100);
+}
+
+std::string FormatFullVersion()
+{
+    return CLIENT_BUILD;
+}
+
+// Format the subversion field according to BIP 14 spec (https://en.bitcoin.it/wiki/BIP_0014)
+std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments)
+{
+    std::ostringstream ss;
+    ss << "/";
+    ss << name << ":" << FormatVersion(nClientVersion);
+    if (!comments.empty())
+        ss << "(" << boost::algorithm::join(comments, "; ") << ")";
+    ss << "/";
+    return ss.str();
+}