Implemented default config file. Tested under Ubuntu; need to test

under Windows.


git-svn-id: https://svn.microneil.com/svn/SNF4CGP/trunk@45 59e8e3e7-56fa-483b-b4b4-fa6ab0af3dfc

SNF4CGP/main.cpp

 const string SNF4CGP_VERSION_INFO = "CGPSNF Version 0.1.0 Build: " __DATE__ " " __TIME__;
 
 const int ConfigPathArgNumber = 1;
-const int CorrectArgcNumber = 2;
+const int MaxArgcNumber = 2;
+
+#if defined(WIN32) || defined(WIN64)
+const string DefaultConfigPath = "C:\\CommuniGatePro\\CGPSNF\\snf_engine.xml";
+#else
+const string DefaultConfigPath = "/var/CommuniGate/CGPSNF/snf_engine.xml";
+#endif
+
 bool CommandLineIsValid(int argc, char*argv[]) {                                // Validate the command line.
-    if(CorrectArgcNumber != argc) {
-        cout << "* CGPSNF - Bad command line, use CGPSNF <path_to_config_file>" << endl;
+    if(argc > MaxArgcNumber) {
+        cout << "* CGPSNF - Bad command line.  Use:" << endl
+	     << "\tCGPSNF <path_to_config_file>" << endl
+	     << "to use the specified config file, or" << endl
+	     << "\tCGSNF" << endl
+	     << "to use the default config file '" << DefaultConfigPath << "'"
+	     << endl;
         return false;
     }
     return true;
 }
 
+string GetConfigPath(int argc, char *argv[]) {                                  // Returns the config file name.
+    if (ConfigPathArgNumber < argc) {
+	return string(argv[ConfigPathArgNumber]);
+    }
+    return DefaultConfigPath;
+}
+
 void go(string ConfigurationPath) {                                             // Application's main thread.
     try {
         ExecutiveProcess SNF4CGP(SNF4CGP_VERSION_INFO, ConfigurationPath);
 }
 
 int main(int argc, char* argv[]) {                                              // Main entry point.
-    if(CommandLineIsValid(argc, argv)) go(argv[ConfigPathArgNumber]);           // With a good command line we go.
+    if(CommandLineIsValid(argc, argv)) go(GetConfigPath(argc, argv));           // With a good command line we go.
     return 0;                                                                   // Then we're done.
 }