4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/** @file
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Provides application point extension for "C" style main funciton
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync http://opensource.org/licenses/bsd-license.php
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync**/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Base.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Protocol/SimpleFileSystem.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Protocol/LoadedImage.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Protocol/EfiShellInterface.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Protocol/EfiShellParameters.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Library/ShellCEntryLib.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <Library/DebugLib.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync UEFI entry point for an application that will in turn call the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ShellAppMain function which has parameters similar to a standard C
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync main function.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync An application that uses UefiShellCEntryLib must have a ShellAppMain
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync function as prototyped in Include/Library/ShellCEntryLib.h.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param ImageHandle The image handle of the UEFI Application.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param SystemTable A pointer to the EFI System Table.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The application exited normally.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval Other An error occurred.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync**/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncShellCEntryLib (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ImageHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_SYSTEM_TABLE *SystemTable
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync )
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync INTN ReturnFromMain;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_SHELL_PARAMETERS_PROTOCOL *EfiShellParametersProtocol;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_SHELL_INTERFACE *EfiShellInterface;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ReturnFromMain = -1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiShellParametersProtocol = NULL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiShellInterface = NULL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = SystemTable->BootServices->OpenProtocol(ImageHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &gEfiShellParametersProtocolGuid,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (VOID **)&EfiShellParametersProtocol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ImageHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_GET_PROTOCOL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (!EFI_ERROR(Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // use shell 2.0 interface
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ReturnFromMain = ShellAppMain (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiShellParametersProtocol->Argc,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiShellParametersProtocol->Argv
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // try to get shell 1.0 interface instead.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = SystemTable->BootServices->OpenProtocol(ImageHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &gEfiShellInterfaceGuid,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (VOID **)&EfiShellInterface,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ImageHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_GET_PROTOCOL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (!EFI_ERROR(Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // use shell 1.0 interface
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ReturnFromMain = ShellAppMain (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiShellInterface->Argc,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiShellInterface->Argv
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ASSERT(FALSE);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (ReturnFromMain == 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (EFI_SUCCESS);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (EFI_UNSUPPORTED);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync