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audk/EdkCompatibilityPkg/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrString.c

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/*++
Copyright (c) 2007, 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.
Module Name:
UefiIfrString.c
Abstract:
Common Library Routines to assist to handle String and Language.
--*/
#include "UefiIfrLibrary.h"
//
// Lookup table of ISO639-2 3 character language codes to ISO 639-1 2 character language codes
// Each entry is 5 CHAR8 values long. The first 3 CHAR8 values are the ISO 639-2 code.
// The last 2 CHAR8 values are the ISO 639-1 code.
//
CHAR8 Iso639ToRfc3066ConversionTable[] =
"\
aaraa\
abkab\
afraf\
amham\
araar\
asmas\
aymay\
azeaz\
bakba\
belbe\
benbn\
bihbh\
bisbi\
bodbo\
brebr\
bulbg\
catca\
cescs\
corkw\
cosco\
cymcy\
danda\
deude\
dzodz\
ellel\
engen\
epoeo\
estet\
euseu\
faofo\
fasfa\
fijfj\
finfi\
frafr\
fryfy\
gaiga\
gdhgd\
glggl\
grngn\
gujgu\
hauha\
hebhe\
hinhi\
hrvhr\
hunhu\
hyehy\
ikuiu\
ileie\
inaia\
indid\
ipkik\
islis\
itait\
jawjw\
jpnja\
kalkl\
kankn\
kasks\
katka\
kazkk\
khmkm\
kinrw\
kirky\
korko\
kurku\
laolo\
latla\
lavlv\
linln\
litlt\
ltzlb\
malml\
marmr\
mkdmk\
mlgmg\
mltmt\
molmo\
monmn\
mrimi\
msams\
myamy\
nauna\
nepne\
nldnl\
norno\
ocioc\
ormom\
panpa\
polpl\
porpt\
pusps\
quequ\
rohrm\
ronro\
runrn\
rusru\
sagsg\
sansa\
sinsi\
slksk\
slvsl\
smise\
smosm\
snasn\
sndsd\
somso\
sotst\
spaes\
sqisq\
srpsr\
sswss\
sunsu\
swasw\
swesv\
tamta\
tattt\
telte\
tgktg\
tgltl\
thath\
tsnts\
tuktk\
twitw\
uigug\
ukruk\
urdur\
uzbuz\
vievi\
volvo\
wolwo\
xhoxh\
yidyi\
zhaza\
zhozh\
zulzu\
";
EFI_STATUS
ConvertRfc3066LanguageToIso639Language (
CHAR8 *LanguageRfc3066,
CHAR8 *LanguageIso639
)
/*++
Routine Description:
Convert language code from RFC3066 to ISO639-2.
Arguments:
LanguageRfc3066 - RFC3066 language code.
LanguageIso639 - ISO639-2 language code.
Returns:
EFI_SUCCESS - Language code converted.
EFI_NOT_FOUND - Language code not found.
--*/
{
UINTN Index;
if ((LanguageRfc3066[2] != '-') && (LanguageRfc3066[2] != 0)) {
EfiCopyMem (LanguageIso639, LanguageRfc3066, 3);
return EFI_SUCCESS;
}
for (Index = 0; Iso639ToRfc3066ConversionTable[Index] != 0; Index += 5) {
if (EfiCompareMem (LanguageRfc3066, &Iso639ToRfc3066ConversionTable[Index + 3], 2) == 0) {
EfiCopyMem (LanguageIso639, &Iso639ToRfc3066ConversionTable[Index], 3);
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
CHAR8 *
Rfc3066ToIso639 (
CHAR8 *SupportedLanguages
)
/*++
Routine Description:
Convert language code list from RFC3066 to ISO639-2, e.g. "en-US;fr-FR" will
be converted to "engfra".
Arguments:
SupportedLanguages - The RFC3066 language list.
Returns:
The ISO639-2 language list.
--*/
{
CHAR8 *Languages;
CHAR8 *ReturnValue;
CHAR8 *LangCodes;
CHAR8 LangRfc3066[RFC_3066_ENTRY_SIZE];
CHAR8 LangIso639[ISO_639_2_ENTRY_SIZE];
EFI_STATUS Status;
ReturnValue = EfiLibAllocateZeroPool (EfiAsciiStrSize (SupportedLanguages));
if (ReturnValue == NULL) {
return ReturnValue;
}
Languages = ReturnValue;
LangCodes = SupportedLanguages;
while (*LangCodes != 0) {
GetNextLanguage (&LangCodes, LangRfc3066);
Status = ConvertRfc3066LanguageToIso639Language (LangRfc3066, LangIso639);
if (!EFI_ERROR (Status)) {
EfiCopyMem (Languages, LangIso639, 3);
Languages = Languages + 3;
}
}
return ReturnValue;
}
EFI_STATUS
GetCurrentLanguage (
OUT CHAR8 *Lang
)
/*++
Routine Description:
Determine what is the current language setting
Arguments:
Lang - Pointer of system language
Returns:
Status code
--*/
{
EFI_STATUS Status;
UINTN Size;
//
// Get current language setting
//
Size = RFC_3066_ENTRY_SIZE;
Status = gRT->GetVariable (
L"PlatformLang",
&gEfiGlobalVariableGuid,
NULL,
&Size,
Lang
);
if (EFI_ERROR (Status)) {
EfiAsciiStrCpy (Lang, (CHAR8 *) "en-US");
}
return Status;
}
VOID
GetNextLanguage (
IN OUT CHAR8 **LangCode,
OUT CHAR8 *Lang
)
/*++
Routine Description:
Get next language from language code list (with separator ';').
Arguments:
LangCode - On input: point to first language in the list. On output: point to
next language in the list, or NULL if no more language in the list.
Lang - The first language in the list.
Returns:
None.
--*/
{
UINTN Index;
CHAR8 *StringPtr;
if (LangCode == NULL || *LangCode == NULL) {
*Lang = 0;
return;
}
Index = 0;
StringPtr = *LangCode;
while (StringPtr[Index] != 0 && StringPtr[Index] != ';') {
Index++;
}
EfiCopyMem (Lang, StringPtr, Index);
Lang[Index] = 0;
if (StringPtr[Index] == ';') {
Index++;
}
*LangCode = StringPtr + Index;
}
CHAR8 *
GetSupportedLanguages (
IN EFI_HII_HANDLE HiiHandle
)
/*++
Routine Description:
This function returns the list of supported languages, in the format specified
in UEFI specification Appendix M.
Arguments:
HiiHandle - The HII package list handle.
Returns:
The supported languages.
--*/
{
EFI_STATUS Status;
UINTN BufferSize;
CHAR8 *LanguageString;
LocateHiiProtocols ();
//
// Collect current supported Languages for given HII handle
//
BufferSize = 0x1000;
LanguageString = EfiLibAllocatePool (BufferSize);
Status = gIfrLibHiiString->GetLanguages (gIfrLibHiiString, HiiHandle, LanguageString, &BufferSize);
if (Status == EFI_BUFFER_TOO_SMALL) {
gBS->FreePool (LanguageString);
LanguageString = EfiLibAllocatePool (BufferSize);
Status = gIfrLibHiiString->GetLanguages (gIfrLibHiiString, HiiHandle, LanguageString, &BufferSize);
}
if (EFI_ERROR (Status)) {
LanguageString = NULL;
}
return LanguageString;
}
UINT16
GetSupportedLanguageNumber (
IN EFI_HII_HANDLE HiiHandle
)
/*++
Routine Description:
This function returns the number of supported languages
Arguments:
HiiHandle - The HII package list handle.
Returns:
The number of supported languages.
--*/
{
CHAR8 *Languages;
CHAR8 *LanguageString;
UINT16 LangNumber;
CHAR8 Lang[RFC_3066_ENTRY_SIZE];
Languages = GetSupportedLanguages (HiiHandle);
if (Languages == NULL) {
return 0;
}
LangNumber = 0;
LanguageString = Languages;
while (*LanguageString != 0) {
GetNextLanguage (&LanguageString, Lang);
LangNumber++;
}
gBS->FreePool (Languages);
return LangNumber;
}
EFI_STATUS
GetStringFromHandle (
IN EFI_HII_HANDLE HiiHandle,
IN EFI_STRING_ID StringId,
OUT EFI_STRING *String
)
/*++
Routine Description:
Get string specified by StringId form the HiiHandle.
Arguments:
HiiHandle - The HII handle of package list.
StringId - The String ID.
String - The output string.
Returns:
EFI_NOT_FOUND - String is not found.
EFI_SUCCESS - Operation is successful.
EFI_OUT_OF_RESOURCES - There is not enought memory in the system.
EFI_INVALID_PARAMETER - The String is NULL.
--*/
{
EFI_STATUS Status;
UINTN StringSize;
if (String == NULL) {
return EFI_INVALID_PARAMETER;
}
StringSize = IFR_LIB_DEFAULT_STRING_SIZE;
*String = EfiLibAllocateZeroPool (StringSize);
if (*String == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = IfrLibGetString (HiiHandle, StringId, *String, &StringSize);
if (Status == EFI_BUFFER_TOO_SMALL) {
gBS->FreePool (*String);
*String = EfiLibAllocateZeroPool (StringSize);
if (*String == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = IfrLibGetString (HiiHandle, StringId, *String, &StringSize);
}
return Status;
}
EFI_STATUS
GetStringFromToken (
IN EFI_GUID *ProducerGuid,
IN EFI_STRING_ID StringId,
OUT EFI_STRING *String
)
/*++
Routine Description:
Get the string given the StringId and String package Producer's Guid.
Arguments:
ProducerGuid - The Guid of String package list.
StringId - The String ID.
String - The output string.
Returns:
EFI_NOT_FOUND - String is not found.
EFI_SUCCESS - Operation is successful.
EFI_OUT_OF_RESOURCES - There is not enought memory in the system.
--*/
{
EFI_STATUS Status;
UINTN Index;
UINTN HandleBufferLen;
EFI_HII_HANDLE *HiiHandleBuffer;
EFI_GUID Guid;
Status = GetHiiHandles (&HandleBufferLen, &HiiHandleBuffer);
if (EFI_ERROR(Status)) {
return Status;
}
for (Index = 0; Index < (HandleBufferLen / sizeof (EFI_HII_HANDLE)); Index++) {
Status = ExtractGuidFromHiiHandle (HiiHandleBuffer[Index], &Guid);
if (EFI_ERROR(Status)) {
return Status;
}
if (EfiCompareGuid (&Guid, ProducerGuid) == TRUE) {
break;
}
}
if (Index >= (HandleBufferLen / sizeof (EFI_HII_HANDLE))) {
Status = EFI_NOT_FOUND;
goto Out;
}
Status = GetStringFromHandle (HiiHandleBuffer[Index], StringId, String);
Out:
if (HiiHandleBuffer != NULL) {
gBS->FreePool (HiiHandleBuffer);
}
return Status;
}
EFI_STATUS
IfrLibNewString (
IN EFI_HII_HANDLE PackageList,
OUT EFI_STRING_ID *StringId,
IN CONST EFI_STRING String
)
/*++
Routine Description:
This function adds the string into String Package of each language.
Arguments:
PackageList - Handle of the package list where this string will be added.
StringId - On return, contains the new strings id, which is unique within PackageList.
String - Points to the new null-terminated string.
Returns:
EFI_SUCCESS - The new string was added successfully.
EFI_NOT_FOUND - The specified PackageList could not be found in database.
EFI_OUT_OF_RESOURCES - Could not add the string due to lack of resources.
EFI_INVALID_PARAMETER - String is NULL or StringId is NULL is NULL.
--*/
{
EFI_STATUS Status;
CHAR8 *Languages;
CHAR8 *LangStrings;
CHAR8 Lang[RFC_3066_ENTRY_SIZE];
Status = EFI_SUCCESS;
LocateHiiProtocols ();
Languages = GetSupportedLanguages (PackageList);
LangStrings = Languages;
while (*LangStrings != 0) {
GetNextLanguage (&LangStrings, Lang);
Status = gIfrLibHiiString->NewString (
gIfrLibHiiString,
PackageList,
StringId,
Lang,
NULL,
String,
NULL
);
if (EFI_ERROR (Status)) {
break;
}
}
gBS->FreePool (Languages);
return Status;
}
EFI_STATUS
IfrLibGetString (
IN EFI_HII_HANDLE PackageList,
IN EFI_STRING_ID StringId,
OUT EFI_STRING String,
IN OUT UINTN *StringSize
)
/*++
Routine Description:
This function try to retrieve string from String package of current language.
If fail, it try to retrieve string from String package of first language it support.
Arguments:
PackageList - The package list in the HII database to search for the specified string.
StringId - The string's id, which is unique within PackageList.
String - Points to the new null-terminated string.
StringSize - On entry, points to the size of the buffer pointed to by String, in bytes. On return,
points to the length of the string, in bytes.
Returns:
EFI_SUCCESS - The string was returned successfully.
EFI_NOT_FOUND - The string specified by StringId is not available.
EFI_BUFFER_TOO_SMALL - The buffer specified by StringLength is too small to hold the string.
EFI_INVALID_PARAMETER - The String or StringSize was NULL.
--*/
{
EFI_STATUS Status;
CHAR8 *Languages;
CHAR8 *LangStrings;
CHAR8 Lang[RFC_3066_ENTRY_SIZE];
CHAR8 CurrentLang[RFC_3066_ENTRY_SIZE];
LocateHiiProtocols ();
GetCurrentLanguage (CurrentLang);
Status = gIfrLibHiiString->GetString (
gIfrLibHiiString,
CurrentLang,
PackageList,
StringId,
String,
StringSize,
NULL
);
if (EFI_ERROR (Status) && (Status != EFI_BUFFER_TOO_SMALL)) {
Languages = GetSupportedLanguages (PackageList);
LangStrings = Languages;
GetNextLanguage (&LangStrings, Lang);
gBS->FreePool (Languages);
Status = gIfrLibHiiString->GetString (
gIfrLibHiiString,
Lang,
PackageList,
StringId,
String,
StringSize,
NULL
);
}
return Status;
}
EFI_STATUS
IfrLibSetString (
IN EFI_HII_HANDLE PackageList,
IN EFI_STRING_ID StringId,
IN CONST EFI_STRING String
)
/*++
Routine Description:
This function updates the string in String package of each language.
Arguments:
PackageList - The package list containing the strings.
StringId - The string's id, which is unique within PackageList.
String - Points to the new null-terminated string.
Returns:
EFI_SUCCESS - The string was updated successfully.
EFI_NOT_FOUND - The string specified by StringId is not in the database.
EFI_INVALID_PARAMETER - The String was NULL.
EFI_OUT_OF_RESOURCES - The system is out of resources to accomplish the task.
--*/
{
EFI_STATUS Status;
CHAR8 *Languages;
CHAR8 *LangStrings;
CHAR8 Lang[RFC_3066_ENTRY_SIZE];
Status = EFI_SUCCESS;
LocateHiiProtocols ();
Languages = GetSupportedLanguages (PackageList);
LangStrings = Languages;
while (*LangStrings != 0) {
GetNextLanguage (&LangStrings, Lang);
Status = gIfrLibHiiString->SetString (
gIfrLibHiiString,
PackageList,
StringId,
Lang,
String,
NULL
);
if (EFI_ERROR (Status)) {
break;
}
}
gBS->FreePool (Languages);
return Status;
}
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