Add SSL/IPv6/DNS info to znc --version

include/znc/znc.h

@@ -56,6 +56,7 @@ public:
 	void BackupConfigOnce(const CString& sSuffix);
 	static CString GetVersion();
 	static CString GetTag(bool bIncludeVersion = true);
+	static CString GetCompileOptionsString();
 	CString GetUptime() const;
 	void ClearBindHosts();
 	bool AddBindHost(const CString& sHost);

src/ClientCommand.cpp

@@ -124,26 +124,8 @@ void CClient::UserCommand(CString& sLine) {
 		PutStatus("There were [" + CString(uMatches) + "] channels matching [" + sChan + "]");
 		PutStatus("Detached [" + CString(uDetached) + "] channels");
 	} else if (sCommand.Equals("VERSION")) {
-		const char *features = "IPv6: "
-#ifdef HAVE_IPV6
-			"yes"
-#else
-			"no"
-#endif
-			", SSL: "
-#ifdef HAVE_LIBSSL
-			"yes"
-#else
-			"no"
-#endif
-			", dns: "
-#ifdef HAVE_THREADED_DNS
-			"threads";
-#else
-			"blocking";
-#endif
 		PutStatus(CZNC::GetTag());
-		PutStatus(features);
+		PutStatus(CZNC::GetCompileOptionsString());
 	} else if (sCommand.Equals("MOTD") || sCommand.Equals("ShowMOTD")) {
 		if (!SendMotd()) {
 			PutStatus("There is no MOTD set.");

src/main.cpp

@@ -138,6 +138,7 @@ int main(int argc, char** argv) {
 			return 0;
 		case 'v':
 			cout << CZNC::GetTag() << endl;
+			cout << CZNC::GetCompileOptionsString() << endl;
 			return 0;
 		case 'n':
 			CDebug::SetStdoutIsTTY(false);

src/znc.cpp

@@ -92,6 +92,29 @@ CString CZNC::GetTag(bool bIncludeVersion) {
 	return szBuf;
 }
 
+CString CZNC::GetCompileOptionsString() {
+	return
+		"IPv6: "
+#ifdef HAVE_IPV6
+		"yes"
+#else
+		"no"
+#endif
+		", SSL: "
+#ifdef HAVE_LIBSSL
+		"yes"
+#else
+		"no"
+#endif
+		", DNS: "
+#ifdef HAVE_THREADED_DNS
+		"threads"
+#else
+		"blocking"
+#endif
+	;
+}
+
 CString CZNC::GetUptime() const {
 	time_t now = time(NULL);
 	return CString::ToTimeStr(now - TimeStarted());