winix can drop privileges now (if started as the root)

added parameters to the config:
 user (string)
 group (string)
 additional_groups (bool)



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@668 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/log.cpp

@@ -19,6 +19,7 @@ Log::Log()
 	item          = 0;
 	item_save     = 1;
 	lines         = 0;
+	log_file_open = false;
 }
 
 
@@ -29,14 +30,18 @@ void Log::Init(int log_l, const std::string & log_f, bool log_std, int log_reque
 	log_stdout    = log_std;
 	item_save     = log_request;
 
-	OpenFile();
+	// don't open the file here
+	// because it would be created with the root as an owner
 }
 
 
 void Log::OpenFile()
 {
 	if( !log_file.empty() )
+	{
 		file.open( log_file.c_str(), std::ios_base::out | std::ios_base::app );
+		log_file_open = true;
+	}
 }
 
 
@@ -216,7 +221,7 @@ void Log::SaveLog()
 	if( log_file.empty() )
 		return;
 
-	if( !file )
+	if( !log_file_open || !file )
 	{
 		file.close();
 		file.clear();
@@ -227,7 +232,8 @@ void Log::SaveLog()
 			return;
 	}
 
-	file << source << std::endl;
+	file << source;
+	file.flush();
 }