Add MotD support.

Fixed config up.
Better handling of config variables

src/util.h

@@ -9,6 +9,7 @@
 #include <iterator>
 #include <algorithm>
 #include <filesystem>
+#include <chrono>
 
 std::string replace(std::string subject, const std::string& search, const std::string& replace) {
 	size_t pos = 0;
@@ -19,6 +20,55 @@ std::string replace(std::string subject, const std::string& search, const std::s
 	return subject;
 }
 
+std::string conf_format(const std::string& fmt, const std::map<std::string, std::string>& vars) {
+	std::string result;
+	result.reserve(fmt.length());
+	
+	for (size_t i = 0; i < fmt.length(); ++i) {
+		if (fmt[i] != '%') {
+			result += fmt[i];
+			continue;
+		}
+		
+		// Handle %% -> %
+		if (i + 1 < fmt.length() && fmt[i + 1] == '%') {
+			result += '%';
+			i++;
+			continue;
+		}
+		
+		// Look for variable name
+		if (i + 1 < fmt.length()) {
+			size_t start = i + 1;
+			size_t end = start;
+			
+			// Find the end of the variable name
+			while (end < fmt.length() && 
+				   (isalnum(fmt[end]) || fmt[end] == '_')) {
+				end++;
+			}
+			
+			if (end > start) {
+				std::string var = fmt.substr(start, end - start);
+				auto it = vars.find(var);
+				if (it != vars.end()) {
+					result += it->second;
+				} else {
+					// Keep the original %var if not found
+					result += fmt.substr(i, end - i);
+				}
+				i = end - 1;
+				continue;
+			}
+		}
+		
+		// If we get here, it's a single % with no variable
+		result += '%';
+	}
+	
+	return result;
+}
+
 template <typename Out>
 void split(const std::string &s, char delim, Out result, int limit) {
 	int it = 0;
@@ -133,6 +183,22 @@ std::string concatPath(std::string dir1, std::string dir2) {
 	return std::filesystem::weakly_canonical(dir1+"/"+dir2).string();
 }
 
+std::string getCurrentUTCTime() {
+	auto now = std::chrono::system_clock::now();
+	auto time = std::chrono::system_clock::to_time_t(now);
+	std::string result(9, '\0');
+	strftime(&result[0], result.size(), "%H:%M:%S", gmtime(&time));
+	return result;
+}
+
+std::string getCurrentUTCDate() {
+	auto now = std::chrono::system_clock::now();
+	auto time = std::chrono::system_clock::to_time_t(now);
+	std::string result(11, '\0');
+	strftime(&result[0], result.size(), "%Y-%m-%d", gmtime(&time));
+	return result;
+}
+
 static char* trim(char *str) {
 	char *end;
 	while(isspace(*str))