audk/MdeModulePkg/Universal/HiiDatabaseDxe/R8Lib.c

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/** @file
Implement a utility function named R8_EfiLibCompareLanguage.
Copyright (c) 2007 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "HiiDatabase.h"
/**
Compare whether two names of languages are identical.
@param Language1 Name of language 1
@param Language2 Name of language 2
@retval TRUE same
@retval FALSE not same
**/
BOOLEAN
R8_EfiLibCompareLanguage (
IN CHAR8 *Language1,
IN CHAR8 *Language2
)
{
//
// Porting Guide:
// This library interface is simply obsolete.
// Include the source code to user code.
//
UINTN Index;
for (Index = 0; (Language1[Index] != 0) && (Language2[Index] != 0); Index++) {
if (Language1[Index] != Language2[Index]) {
return FALSE;
}
}
if (((Language1[Index] == 0) && (Language2[Index] == 0)) ||
((Language1[Index] == 0) && (Language2[Index] != ';')) ||
((Language1[Index] == ';') && (Language2[Index] != 0)) ||
((Language1[Index] == ';') && (Language2[Index] != ';'))) {
return TRUE;
}
return FALSE;
}
/**
Determine what is the current language setting. The space reserved for Lang
must be at least RFC_3066_ENTRY_SIZE bytes;
If Lang is NULL, then ASSERT.
@param Lang Pointer of system language. Lang will always be filled with
a valid RFC 3066 language string. If "PlatformLang" is not
set in the system, the default language specifed by PcdUefiVariableDefaultPlatformLang
is returned.
@return EFI_SUCCESS If the EFI Variable with "PlatformLang" is set and return in Lang.
@return EFI_NOT_FOUND If the EFI Variable with "PlatformLang" is not set, but a valid default language is return in Lang.
**/
EFI_STATUS
EFIAPI
GetCurrentLanguage (
OUT CHAR8 *Lang
)
{
EFI_STATUS Status;
UINTN Size;
ASSERT (Lang != NULL);
//
// Get current language setting
//
Size = RFC_3066_ENTRY_SIZE;
Status = gRT->GetVariable (
L"PlatformLang",
&gEfiGlobalVariableGuid,
NULL,
&Size,
Lang
);
if (EFI_ERROR (Status)) {
AsciiStrCpy (Lang, (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang));
}
return Status;
}