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Diffstat (limited to 'MdeModulePkg/Library/UefiHiiLib/HiiString.c')
-rw-r--r--MdeModulePkg/Library/UefiHiiLib/HiiString.c790
1 files changed, 395 insertions, 395 deletions
diff --git a/MdeModulePkg/Library/UefiHiiLib/HiiString.c b/MdeModulePkg/Library/UefiHiiLib/HiiString.c
index 2c586ef64d..9ced10d4bf 100644
--- a/MdeModulePkg/Library/UefiHiiLib/HiiString.c
+++ b/MdeModulePkg/Library/UefiHiiLib/HiiString.c
@@ -1,395 +1,395 @@
-/** @file
- HII Library implementation that uses DXE protocols and services.
-
- Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
- (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "InternalHiiLib.h"
-
-/**
- This function create a new string in String Package or updates an existing
- string in a String Package. If StringId is 0, then a new string is added to
- a String Package. If StringId is not zero, then a string in String Package is
- updated. If SupportedLanguages is NULL, then the string is added or updated
- for all the languages that the String Package supports. If SupportedLanguages
- is not NULL, then the string is added or updated for the set of languages
- specified by SupportedLanguages.
-
- If HiiHandle is NULL, then ASSERT().
- If String is NULL, then ASSERT().
-
- @param[in] HiiHandle A handle that was previously registered in the
- HII Database.
- @param[in] StringId If zero, then a new string is created in the
- String Package associated with HiiHandle. If
- non-zero, then the string specified by StringId
- is updated in the String Package associated
- with HiiHandle.
- @param[in] String A pointer to the Null-terminated Unicode string
- to add or update in the String Package associated
- with HiiHandle.
- @param[in] SupportedLanguages A pointer to a Null-terminated ASCII string of
- language codes. If this parameter is NULL, then
- String is added or updated in the String Package
- associated with HiiHandle for all the languages
- that the String Package supports. If this
- parameter is not NULL, then then String is added
- or updated in the String Package associated with
- HiiHandle for the set oflanguages specified by
- SupportedLanguages. The format of
- SupportedLanguages must follow the language
- format assumed the HII Database.
-
- @retval 0 The string could not be added or updated in the String Package.
- @retval Other The EFI_STRING_ID of the newly added or updated string.
-
-**/
-EFI_STRING_ID
-EFIAPI
-HiiSetString (
- IN EFI_HII_HANDLE HiiHandle,
- IN EFI_STRING_ID StringId OPTIONAL,
- IN CONST EFI_STRING String,
- IN CONST CHAR8 *SupportedLanguages OPTIONAL
- )
-{
- EFI_STATUS Status;
- CHAR8 *AllocatedLanguages;
- CHAR8 *Supported;
- CHAR8 *Language;
-
- ASSERT (HiiHandle != NULL);
- ASSERT (String != NULL);
-
- if (SupportedLanguages == NULL) {
- //
- // Retrieve the languages that the package specified by HiiHandle supports
- //
- AllocatedLanguages = HiiGetSupportedLanguages (HiiHandle);
- } else {
- //
- // Allocate a copy of the SupportLanguages string that passed in
- //
- AllocatedLanguages = AllocateCopyPool (AsciiStrSize (SupportedLanguages), SupportedLanguages);
- }
-
- //
- // If there are not enough resources for the supported languages string, then return a StringId of 0
- //
- if (AllocatedLanguages == NULL) {
- return (EFI_STRING_ID)(0);
- }
-
- Status = EFI_INVALID_PARAMETER;
- //
- // Loop through each language that the string supports
- //
- for (Supported = AllocatedLanguages; *Supported != '\0'; ) {
- //
- // Cache a pointer to the beginning of the current language in the list of languages
- //
- Language = Supported;
-
- //
- // Search for the next language separator and replace it with a Null-terminator
- //
- for ( ; *Supported != 0 && *Supported != ';'; Supported++) {
- }
-
- if (*Supported != 0) {
- *(Supported++) = '\0';
- }
-
- if ((SupportedLanguages == NULL) && (AsciiStrnCmp (Language, UEFI_CONFIG_LANG, AsciiStrLen (UEFI_CONFIG_LANG)) == 0)) {
- //
- // Skip string package used for keyword protocol.
- //
- continue;
- }
-
- //
- // If StringId is 0, then call NewString(). Otherwise, call SetString()
- //
- if (StringId == (EFI_STRING_ID)(0)) {
- Status = gHiiString->NewString (gHiiString, HiiHandle, &StringId, Language, NULL, String, NULL);
- } else {
- Status = gHiiString->SetString (gHiiString, HiiHandle, StringId, Language, String, NULL);
- }
-
- //
- // If there was an error, then break out of the loop and return a StringId of 0
- //
- if (EFI_ERROR (Status)) {
- break;
- }
- }
-
- //
- // Free the buffer of supported languages
- //
- FreePool (AllocatedLanguages);
-
- if (EFI_ERROR (Status)) {
- return (EFI_STRING_ID)(0);
- } else {
- return StringId;
- }
-}
-
-/**
- Retrieves a string from a string package names by GUID in a specific language.
- If the language is not specified, then a string from a string package in the
- current platform language is retrieved. If the string can not be retrieved
- using the specified language or the current platform language, then the string
- is retrieved from the string package in the first language the string package
- supports. The returned string is allocated using AllocatePool(). The caller
- is responsible for freeing the allocated buffer using FreePool().
-
- If PackageListGuid is NULL, then ASSERT().
- If StringId is 0, then ASSERT.
-
- @param[in] PackageListGuid The GUID of a package list that was previously
- registered in the HII Database.
- @param[in] StringId The identifier of the string to retrieved from the
- string package associated with PackageListGuid.
- @param[in] Language The language of the string to retrieve. If this
- parameter is NULL, then the current platform
- language is used. The format of Language must
- follow the language format assumed the HII Database.
-
- @retval NULL The package list specified by PackageListGuid is not present in the
- HII Database.
- @retval NULL The string specified by StringId is not present in the string package.
- @retval Other The string was returned.
-
-**/
-EFI_STRING
-EFIAPI
-HiiGetPackageString (
- IN CONST EFI_GUID *PackageListGuid,
- IN EFI_STRING_ID StringId,
- IN CONST CHAR8 *Language OPTIONAL
- )
-{
- EFI_HII_HANDLE *HiiHandleBuffer;
- EFI_HII_HANDLE HiiHandle;
-
- ASSERT (PackageListGuid != NULL);
-
- HiiHandleBuffer = HiiGetHiiHandles (PackageListGuid);
- if (HiiHandleBuffer == NULL) {
- return NULL;
- }
-
- HiiHandle = HiiHandleBuffer[0];
- FreePool (HiiHandleBuffer);
-
- return HiiGetString (HiiHandle, StringId, Language);
-}
-
-/**
- Retrieves a string from a string package in a specific language specified in Language
- or in the best lanaguage. See HiiGetStringEx () for the details.
-
- @param[in] HiiHandle A handle that was previously registered in the HII Database.
- @param[in] StringId The identifier of the string to retrieved from the string
- package associated with HiiHandle.
- @param[in] Language The language of the string to retrieve. If this parameter
- is NULL, then the current platform language is used. The
- format of Language must follow the language format assumed
- the HII Database.
-
- @retval NULL The string specified by StringId is not present in the string package.
- @retval Other The string was returned.
-
-**/
-EFI_STRING
-EFIAPI
-HiiGetString (
- IN EFI_HII_HANDLE HiiHandle,
- IN EFI_STRING_ID StringId,
- IN CONST CHAR8 *Language OPTIONAL
- )
-{
- return HiiGetStringEx (HiiHandle, StringId, Language, TRUE);
-}
-
-/**
- Retrieves a string from a string package in a specific language or in the best
- language at discretion of this function according to the priority of languages.
- TryBestLanguage is used to get the string in the best language or in the language
- specified in Language parameter. The behavior is,
- If TryBestLanguage is TRUE, this function looks for the best language for the string.
- - If the string can not be retrieved using the specified language or the current
- platform language, then the string is retrieved from the string package in the
- first language the string package supports.
- If TryBestLanguage is FALSE, Language must be specified for retrieving the string.
-
- The returned string is allocated using AllocatePool(). The caller is responsible
- for freeing the allocated buffer using FreePool().
-
- If HiiHandle is NULL, then ASSERT().
- If StringId is 0, then ASSET.
- If TryBestLanguage is FALE and Language is NULL, then ASSERT().
-
- @param[in] HiiHandle A handle that was previously registered in the HII Database.
- @param[in] StringId The identifier of the string to retrieved from the string
- package associated with HiiHandle.
- @param[in] Language The language of the string to retrieve. If this parameter
- is NULL, then the current platform language is used. The
- format of Language must follow the language format assumed
- the HII Database.
- @param[in] TryBestLanguage If TRUE, try to get the best matching language from all
- supported languages.If FALSE, the Language must be assigned
- for the StringID.
-
- @retval NULL The string specified by StringId is not present in the string package.
- @retval Other The string was returned.
-
-**/
-EFI_STRING
-EFIAPI
-HiiGetStringEx (
- IN EFI_HII_HANDLE HiiHandle,
- IN EFI_STRING_ID StringId,
- IN CONST CHAR8 *Language OPTIONAL,
- IN BOOLEAN TryBestLanguage
- )
-{
- EFI_STATUS Status;
- UINTN StringSize;
- CHAR16 TempString;
- EFI_STRING String;
- CHAR8 *SupportedLanguages;
- CHAR8 *PlatformLanguage;
- CHAR8 *BestLanguage;
-
- ASSERT (HiiHandle != NULL);
- ASSERT (StringId != 0);
- //
- // Language must be specified if TryBestLanguage = FALSE.
- //
- ASSERT (!(!TryBestLanguage && Language == NULL));
- //
- // Initialize all allocated buffers to NULL
- //
- SupportedLanguages = NULL;
- PlatformLanguage = NULL;
- BestLanguage = NULL;
- String = NULL;
-
- //
- // Get the languages that the package specified by HiiHandle supports
- //
- SupportedLanguages = HiiGetSupportedLanguages (HiiHandle);
- if (SupportedLanguages == NULL) {
- goto Error;
- }
-
- //
- // Get the current platform language setting
- //
- GetEfiGlobalVariable2 (L"PlatformLang", (VOID **)&PlatformLanguage, NULL);
-
- //
- // If Languag is NULL, then set it to an empty string, so it will be
- // skipped by GetBestLanguage()
- //
- if (Language == NULL) {
- Language = "";
- }
-
- if (TryBestLanguage) {
- //
- // Get the best matching language from SupportedLanguages
- //
- BestLanguage = GetBestLanguage (
- SupportedLanguages,
- FALSE, // RFC 4646 mode
- Language, // Highest priority
- PlatformLanguage != NULL ? PlatformLanguage : "", // Next highest priority
- SupportedLanguages, // Lowest priority
- NULL
- );
- if (BestLanguage == NULL) {
- goto Error;
- }
- } else {
- BestLanguage = (CHAR8 *)Language;
- }
-
- //
- // Retrieve the size of the string in the string package for the BestLanguage
- //
- StringSize = 0;
- Status = gHiiString->GetString (
- gHiiString,
- BestLanguage,
- HiiHandle,
- StringId,
- &TempString,
- &StringSize,
- NULL
- );
- //
- // If GetString() returns EFI_SUCCESS for a zero size,
- // then there are no supported languages registered for HiiHandle. If GetString()
- // returns an error other than EFI_BUFFER_TOO_SMALL, then HiiHandle is not present
- // in the HII Database
- //
- if (Status != EFI_BUFFER_TOO_SMALL) {
- goto Error;
- }
-
- //
- // Allocate a buffer for the return string
- //
- String = AllocateZeroPool (StringSize);
- if (String == NULL) {
- goto Error;
- }
-
- //
- // Retrieve the string from the string package
- //
- Status = gHiiString->GetString (
- gHiiString,
- BestLanguage,
- HiiHandle,
- StringId,
- String,
- &StringSize,
- NULL
- );
- if (EFI_ERROR (Status)) {
- //
- // Free the buffer and return NULL if the supported languages can not be retrieved.
- //
- FreePool (String);
- String = NULL;
- }
-
-Error:
- //
- // Free allocated buffers
- //
- if (SupportedLanguages != NULL) {
- FreePool (SupportedLanguages);
- }
-
- if (PlatformLanguage != NULL) {
- FreePool (PlatformLanguage);
- }
-
- if (TryBestLanguage && (BestLanguage != NULL)) {
- FreePool (BestLanguage);
- }
-
- //
- // Return the Null-terminated Unicode string
- //
- return String;
-}
+/** @file
+ HII Library implementation that uses DXE protocols and services.
+
+ Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "InternalHiiLib.h"
+
+/**
+ This function create a new string in String Package or updates an existing
+ string in a String Package. If StringId is 0, then a new string is added to
+ a String Package. If StringId is not zero, then a string in String Package is
+ updated. If SupportedLanguages is NULL, then the string is added or updated
+ for all the languages that the String Package supports. If SupportedLanguages
+ is not NULL, then the string is added or updated for the set of languages
+ specified by SupportedLanguages.
+
+ If HiiHandle is NULL, then ASSERT().
+ If String is NULL, then ASSERT().
+
+ @param[in] HiiHandle A handle that was previously registered in the
+ HII Database.
+ @param[in] StringId If zero, then a new string is created in the
+ String Package associated with HiiHandle. If
+ non-zero, then the string specified by StringId
+ is updated in the String Package associated
+ with HiiHandle.
+ @param[in] String A pointer to the Null-terminated Unicode string
+ to add or update in the String Package associated
+ with HiiHandle.
+ @param[in] SupportedLanguages A pointer to a Null-terminated ASCII string of
+ language codes. If this parameter is NULL, then
+ String is added or updated in the String Package
+ associated with HiiHandle for all the languages
+ that the String Package supports. If this
+ parameter is not NULL, then then String is added
+ or updated in the String Package associated with
+ HiiHandle for the set oflanguages specified by
+ SupportedLanguages. The format of
+ SupportedLanguages must follow the language
+ format assumed the HII Database.
+
+ @retval 0 The string could not be added or updated in the String Package.
+ @retval Other The EFI_STRING_ID of the newly added or updated string.
+
+**/
+EFI_STRING_ID
+EFIAPI
+HiiSetString (
+ IN EFI_HII_HANDLE HiiHandle,
+ IN EFI_STRING_ID StringId OPTIONAL,
+ IN CONST EFI_STRING String,
+ IN CONST CHAR8 *SupportedLanguages OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ CHAR8 *AllocatedLanguages;
+ CHAR8 *Supported;
+ CHAR8 *Language;
+
+ ASSERT (HiiHandle != NULL);
+ ASSERT (String != NULL);
+
+ if (SupportedLanguages == NULL) {
+ //
+ // Retrieve the languages that the package specified by HiiHandle supports
+ //
+ AllocatedLanguages = HiiGetSupportedLanguages (HiiHandle);
+ } else {
+ //
+ // Allocate a copy of the SupportLanguages string that passed in
+ //
+ AllocatedLanguages = AllocateCopyPool (AsciiStrSize (SupportedLanguages), SupportedLanguages);
+ }
+
+ //
+ // If there are not enough resources for the supported languages string, then return a StringId of 0
+ //
+ if (AllocatedLanguages == NULL) {
+ return (EFI_STRING_ID)(0);
+ }
+
+ Status = EFI_INVALID_PARAMETER;
+ //
+ // Loop through each language that the string supports
+ //
+ for (Supported = AllocatedLanguages; *Supported != '\0'; ) {
+ //
+ // Cache a pointer to the beginning of the current language in the list of languages
+ //
+ Language = Supported;
+
+ //
+ // Search for the next language separator and replace it with a Null-terminator
+ //
+ for ( ; *Supported != 0 && *Supported != ';'; Supported++) {
+ }
+
+ if (*Supported != 0) {
+ *(Supported++) = '\0';
+ }
+
+ if ((SupportedLanguages == NULL) && (AsciiStrnCmp (Language, UEFI_CONFIG_LANG, AsciiStrLen (UEFI_CONFIG_LANG)) == 0)) {
+ //
+ // Skip string package used for keyword protocol.
+ //
+ continue;
+ }
+
+ //
+ // If StringId is 0, then call NewString(). Otherwise, call SetString()
+ //
+ if (StringId == (EFI_STRING_ID)(0)) {
+ Status = gHiiString->NewString (gHiiString, HiiHandle, &StringId, Language, NULL, String, NULL);
+ } else {
+ Status = gHiiString->SetString (gHiiString, HiiHandle, StringId, Language, String, NULL);
+ }
+
+ //
+ // If there was an error, then break out of the loop and return a StringId of 0
+ //
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+ }
+
+ //
+ // Free the buffer of supported languages
+ //
+ FreePool (AllocatedLanguages);
+
+ if (EFI_ERROR (Status)) {
+ return (EFI_STRING_ID)(0);
+ } else {
+ return StringId;
+ }
+}
+
+/**
+ Retrieves a string from a string package names by GUID in a specific language.
+ If the language is not specified, then a string from a string package in the
+ current platform language is retrieved. If the string can not be retrieved
+ using the specified language or the current platform language, then the string
+ is retrieved from the string package in the first language the string package
+ supports. The returned string is allocated using AllocatePool(). The caller
+ is responsible for freeing the allocated buffer using FreePool().
+
+ If PackageListGuid is NULL, then ASSERT().
+ If StringId is 0, then ASSERT.
+
+ @param[in] PackageListGuid The GUID of a package list that was previously
+ registered in the HII Database.
+ @param[in] StringId The identifier of the string to retrieved from the
+ string package associated with PackageListGuid.
+ @param[in] Language The language of the string to retrieve. If this
+ parameter is NULL, then the current platform
+ language is used. The format of Language must
+ follow the language format assumed the HII Database.
+
+ @retval NULL The package list specified by PackageListGuid is not present in the
+ HII Database.
+ @retval NULL The string specified by StringId is not present in the string package.
+ @retval Other The string was returned.
+
+**/
+EFI_STRING
+EFIAPI
+HiiGetPackageString (
+ IN CONST EFI_GUID *PackageListGuid,
+ IN EFI_STRING_ID StringId,
+ IN CONST CHAR8 *Language OPTIONAL
+ )
+{
+ EFI_HII_HANDLE *HiiHandleBuffer;
+ EFI_HII_HANDLE HiiHandle;
+
+ ASSERT (PackageListGuid != NULL);
+
+ HiiHandleBuffer = HiiGetHiiHandles (PackageListGuid);
+ if (HiiHandleBuffer == NULL) {
+ return NULL;
+ }
+
+ HiiHandle = HiiHandleBuffer[0];
+ FreePool (HiiHandleBuffer);
+
+ return HiiGetString (HiiHandle, StringId, Language);
+}
+
+/**
+ Retrieves a string from a string package in a specific language specified in Language
+ or in the best lanaguage. See HiiGetStringEx () for the details.
+
+ @param[in] HiiHandle A handle that was previously registered in the HII Database.
+ @param[in] StringId The identifier of the string to retrieved from the string
+ package associated with HiiHandle.
+ @param[in] Language The language of the string to retrieve. If this parameter
+ is NULL, then the current platform language is used. The
+ format of Language must follow the language format assumed
+ the HII Database.
+
+ @retval NULL The string specified by StringId is not present in the string package.
+ @retval Other The string was returned.
+
+**/
+EFI_STRING
+EFIAPI
+HiiGetString (
+ IN EFI_HII_HANDLE HiiHandle,
+ IN EFI_STRING_ID StringId,
+ IN CONST CHAR8 *Language OPTIONAL
+ )
+{
+ return HiiGetStringEx (HiiHandle, StringId, Language, TRUE);
+}
+
+/**
+ Retrieves a string from a string package in a specific language or in the best
+ language at discretion of this function according to the priority of languages.
+ TryBestLanguage is used to get the string in the best language or in the language
+ specified in Language parameter. The behavior is,
+ If TryBestLanguage is TRUE, this function looks for the best language for the string.
+ - If the string can not be retrieved using the specified language or the current
+ platform language, then the string is retrieved from the string package in the
+ first language the string package supports.
+ If TryBestLanguage is FALSE, Language must be specified for retrieving the string.
+
+ The returned string is allocated using AllocatePool(). The caller is responsible
+ for freeing the allocated buffer using FreePool().
+
+ If HiiHandle is NULL, then ASSERT().
+ If StringId is 0, then ASSET.
+ If TryBestLanguage is FALE and Language is NULL, then ASSERT().
+
+ @param[in] HiiHandle A handle that was previously registered in the HII Database.
+ @param[in] StringId The identifier of the string to retrieved from the string
+ package associated with HiiHandle.
+ @param[in] Language The language of the string to retrieve. If this parameter
+ is NULL, then the current platform language is used. The
+ format of Language must follow the language format assumed
+ the HII Database.
+ @param[in] TryBestLanguage If TRUE, try to get the best matching language from all
+ supported languages.If FALSE, the Language must be assigned
+ for the StringID.
+
+ @retval NULL The string specified by StringId is not present in the string package.
+ @retval Other The string was returned.
+
+**/
+EFI_STRING
+EFIAPI
+HiiGetStringEx (
+ IN EFI_HII_HANDLE HiiHandle,
+ IN EFI_STRING_ID StringId,
+ IN CONST CHAR8 *Language OPTIONAL,
+ IN BOOLEAN TryBestLanguage
+ )
+{
+ EFI_STATUS Status;
+ UINTN StringSize;
+ CHAR16 TempString;
+ EFI_STRING String;
+ CHAR8 *SupportedLanguages;
+ CHAR8 *PlatformLanguage;
+ CHAR8 *BestLanguage;
+
+ ASSERT (HiiHandle != NULL);
+ ASSERT (StringId != 0);
+ //
+ // Language must be specified if TryBestLanguage = FALSE.
+ //
+ ASSERT (!(!TryBestLanguage && Language == NULL));
+ //
+ // Initialize all allocated buffers to NULL
+ //
+ SupportedLanguages = NULL;
+ PlatformLanguage = NULL;
+ BestLanguage = NULL;
+ String = NULL;
+
+ //
+ // Get the languages that the package specified by HiiHandle supports
+ //
+ SupportedLanguages = HiiGetSupportedLanguages (HiiHandle);
+ if (SupportedLanguages == NULL) {
+ goto Error;
+ }
+
+ //
+ // Get the current platform language setting
+ //
+ GetEfiGlobalVariable2 (L"PlatformLang", (VOID **)&PlatformLanguage, NULL);
+
+ //
+ // If Languag is NULL, then set it to an empty string, so it will be
+ // skipped by GetBestLanguage()
+ //
+ if (Language == NULL) {
+ Language = "";
+ }
+
+ if (TryBestLanguage) {
+ //
+ // Get the best matching language from SupportedLanguages
+ //
+ BestLanguage = GetBestLanguage (
+ SupportedLanguages,
+ FALSE, // RFC 4646 mode
+ Language, // Highest priority
+ PlatformLanguage != NULL ? PlatformLanguage : "", // Next highest priority
+ SupportedLanguages, // Lowest priority
+ NULL
+ );
+ if (BestLanguage == NULL) {
+ goto Error;
+ }
+ } else {
+ BestLanguage = (CHAR8 *)Language;
+ }
+
+ //
+ // Retrieve the size of the string in the string package for the BestLanguage
+ //
+ StringSize = 0;
+ Status = gHiiString->GetString (
+ gHiiString,
+ BestLanguage,
+ HiiHandle,
+ StringId,
+ &TempString,
+ &StringSize,
+ NULL
+ );
+ //
+ // If GetString() returns EFI_SUCCESS for a zero size,
+ // then there are no supported languages registered for HiiHandle. If GetString()
+ // returns an error other than EFI_BUFFER_TOO_SMALL, then HiiHandle is not present
+ // in the HII Database
+ //
+ if (Status != EFI_BUFFER_TOO_SMALL) {
+ goto Error;
+ }
+
+ //
+ // Allocate a buffer for the return string
+ //
+ String = AllocateZeroPool (StringSize);
+ if (String == NULL) {
+ goto Error;
+ }
+
+ //
+ // Retrieve the string from the string package
+ //
+ Status = gHiiString->GetString (
+ gHiiString,
+ BestLanguage,
+ HiiHandle,
+ StringId,
+ String,
+ &StringSize,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // Free the buffer and return NULL if the supported languages can not be retrieved.
+ //
+ FreePool (String);
+ String = NULL;
+ }
+
+Error:
+ //
+ // Free allocated buffers
+ //
+ if (SupportedLanguages != NULL) {
+ FreePool (SupportedLanguages);
+ }
+
+ if (PlatformLanguage != NULL) {
+ FreePool (PlatformLanguage);
+ }
+
+ if (TryBestLanguage && (BestLanguage != NULL)) {
+ FreePool (BestLanguage);
+ }
+
+ //
+ // Return the Null-terminated Unicode string
+ //
+ return String;
+}