1 files changed, 70 insertions, 0 deletions
diff --git a/worldtime_protocol/timezone.cpp b/worldtime_protocol/timezone.cpp
new file mode 100644
index 0000000..ee4a8ed
--- /dev/null
+++ b/worldtime_protocol/timezone.cpp
@@ -0,0 +1,70 @@
+#include "common.h"
+#include "timezone.h"
+
+TimeList timezone_list, geo_timezone_list;
+
+bool LS_TZREG::operator<(const LS_TZREG &other) {
+	//return Index < other.Index;
+	return TZI.Bias < other.TZI.Bias;
+}
+
+bool build_timezone_list() {
+	HKEY HKlmtz;
+	HKEY KKtz;
+	DWORD dwIndex = 0;
+	CHAR tcName[MAX_SIZE];
+	DWORD dwcbName = MAX_SIZE;
+	DWORD dwcbValue;
+	DWORD dwcbSTD;
+	DWORD dwcbDLT;
+	LS_TZREG Temp;
+	FILETIME ftLastWrite;
+	unsigned int list_index = 0;
+	bool win9x = false;
+
+	if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, TZREG, 0, KEY_ENUMERATE_SUB_KEYS, &HKlmtz) != ERROR_SUCCESS) {
+		win9x = true;
+		if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, TZREG_9X, 0, KEY_ENUMERATE_SUB_KEYS, &HKlmtz) != ERROR_SUCCESS)
+			return false;
+	}
+
+	while(RegEnumKeyEx(HKlmtz, dwIndex++, tcName, &dwcbName, NULL, NULL, NULL, &ftLastWrite) != ERROR_NO_MORE_ITEMS) {
+
+		if(RegOpenKeyEx(HKlmtz, tcName, 0,KEY_QUERY_VALUE, &KKtz) != ERROR_SUCCESS) {
+			RegCloseKey(HKlmtz);
+			return false;
+		}
+
+		strncpy(Temp.tcName, tcName, MAX_SIZE);
+		dwcbValue = MAX_SIZE;
+		RegQueryValueEx(KKtz,"Display",NULL,NULL,(BYTE*)Temp.tcDisp,&dwcbValue);
+		dwcbDLT = MAX_SIZE;
+		RegQueryValueEx(KKtz,"Dlt",NULL,NULL,(BYTE*)Temp.tcDLT,&dwcbDLT);
+		dwcbSTD = MAX_SIZE;
+		RegQueryValueEx(KKtz,"Std",NULL,NULL,(BYTE*)Temp.tcSTD,&dwcbSTD);
+		dwcbValue = MAX_SIZE;
+		RegQueryValueEx(KKtz,"MapID",NULL,NULL,(BYTE*)Temp.MapID,&dwcbValue);
+		if(!win9x) {
+			dwcbValue = sizeof(DWORD);
+			RegQueryValueEx(KKtz,"Index",NULL,NULL,(BYTE*)&Temp.Index,&dwcbValue);
+		}
+		dwcbValue = sizeof(Temp.TZI);
+		RegQueryValueEx(KKtz,"TZI",NULL,NULL,(BYTE*)&Temp.TZI,&dwcbValue);
+
+		RegCloseKey(KKtz);
+
+		Temp.list_index = list_index;
+		timezone_list.push_back(Temp);
+
+		dwcbName = MAX_SIZE;
+		list_index++;
+	}
+
+	RegCloseKey(HKlmtz);
+
+	geo_timezone_list = timezone_list;
+	std::sort(geo_timezone_list.begin(), geo_timezone_list.end());
+	
+	return true;
+}
+