timezone.c File Reference

#include <rtl.h>
#include <debug.h>

Include dependency graph for timezone.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
NTSTATUS NTAPI	RtlQueryTimeZoneInformation (PRTL_TIME_ZONE_INFORMATION TimeZoneInformation)
NTSTATUS NTAPI	RtlSetTimeZoneInformation (PRTL_TIME_ZONE_INFORMATION TimeZoneInformation)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 13 of file timezone.c.

Function Documentation

RtlQueryTimeZoneInformation()

NTSTATUS NTAPI RtlQueryTimeZoneInformation

(

PRTL_TIME_ZONE_INFORMATION

TimeZoneInformation

)

Definition at line 23 of file timezone.c.

{
    RTL_QUERY_REGISTRY_TABLE QueryTable[8];
    UNICODE_STRING StandardName;
    UNICODE_STRING DaylightName;
    NTSTATUS Status;
 
    DPRINT("RtlQueryTimeZoneInformation()\n");
 
    PAGED_CODE_RTL();
 
    RtlZeroMemory(QueryTable,
                  sizeof(QueryTable));
 
    StandardName.Length = 0;
    StandardName.MaximumLength = 32 * sizeof(WCHAR);
    StandardName.Buffer = TimeZoneInformation->StandardName;
 
    DaylightName.Length = 0;
    DaylightName.MaximumLength = 32 * sizeof(WCHAR);
    DaylightName.Buffer = TimeZoneInformation->DaylightName;
 
    QueryTable[0].Name = L"Bias";
    QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[0].EntryContext = &TimeZoneInformation->Bias;
 
    QueryTable[1].Name = L"StandardName";
    QueryTable[1].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[1].EntryContext = &StandardName;
 
    QueryTable[2].Name = L"StandardBias";
    QueryTable[2].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[2].EntryContext = &TimeZoneInformation->StandardBias;
 
    QueryTable[3].Name = L"StandardStart";
    QueryTable[3].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[3].EntryContext = &TimeZoneInformation->StandardDate;
 
    QueryTable[4].Name = L"DaylightName";
    QueryTable[4].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[4].EntryContext = &DaylightName;
 
    QueryTable[5].Name = L"DaylightBias";
    QueryTable[5].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[5].EntryContext = &TimeZoneInformation->DaylightBias;
 
    QueryTable[6].Name = L"DaylightStart";
    QueryTable[6].Flags = RTL_QUERY_REGISTRY_DIRECT;
    QueryTable[6].EntryContext = &TimeZoneInformation->DaylightDate;
 
    Status = RtlQueryRegistryValues(RTL_REGISTRY_CONTROL,
                                    L"TimeZoneInformation",
                                    QueryTable,
                                    NULL,
                                    NULL);
 
    return Status;
}

RtlSetTimeZoneInformation()

NTSTATUS NTAPI RtlSetTimeZoneInformation

(

PRTL_TIME_ZONE_INFORMATION

TimeZoneInformation

)

Definition at line 88 of file timezone.c.

{
    SIZE_T Length;
    NTSTATUS Status;
 
    DPRINT("RtlSetTimeZoneInformation()\n");
 
    PAGED_CODE_RTL();
 
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"Bias",
                                   REG_DWORD,
                                   &TimeZoneInformation->Bias,
                                   sizeof(LONG));
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    Length = (wcslen(TimeZoneInformation->StandardName) + 1) * sizeof(WCHAR);
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"StandardName",
                                   REG_SZ,
                                   TimeZoneInformation->StandardName,
                                   (ULONG)Length);
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"StandardBias",
                                   REG_DWORD,
                                   &TimeZoneInformation->StandardBias,
                                   sizeof(LONG));
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"StandardStart",
                                   REG_BINARY,
                                   &TimeZoneInformation->StandardDate,
                                   sizeof(SYSTEMTIME));
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    Length = (wcslen(TimeZoneInformation->DaylightName) + 1) * sizeof(WCHAR);
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"DaylightName",
                                   REG_SZ,
                                   TimeZoneInformation->DaylightName,
                                   (ULONG)Length);
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"DaylightBias",
                                   REG_DWORD,
                                   &TimeZoneInformation->DaylightBias,
                                   sizeof(LONG));
    if (!NT_SUCCESS(Status))
    {
        return Status;
    }
 
    Status = RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
                                   L"TimeZoneInformation",
                                   L"DaylightStart",
                                   REG_BINARY,
                                   &TimeZoneInformation->DaylightDate,
                                   sizeof(SYSTEMTIME));
 
    return Status;
}