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150 lines
3.9 KiB
150 lines
3.9 KiB
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/*++
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Copyright (c) 1998 Intel Corporation
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Module Name:
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init.c
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Abstract:
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Intialize the shell library
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Revision History
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--*/
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#include "shelllib.h"
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/*
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*
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*/
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EFI_STATUS
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InitializeShellApplication (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE Handle;
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UINTN BufferSize;
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/*
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* Shell app lib is a super set of the default lib.
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* Initialize the default lib first
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*/
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InitializeLib (ImageHandle, SystemTable);
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ST = SystemTable;
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/*
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* Connect to the shell interface
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*/
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Status = BS->HandleProtocol(ImageHandle, &ShellInterfaceProtocol, (VOID*)&SI);
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if (EFI_ERROR(Status)) {
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DEBUG((D_ERROR, "InitShellApp: Application not started from Shell\n"));
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Print (L"%EInitShellApp: Application not started from Shell%N\n");
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BS->Exit (ImageHandle, Status, 0, NULL);
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}
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/*
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* Connect to the shell environment
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*/
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BufferSize = sizeof(Handle);
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Status = BS->LocateHandle(ByProtocol, &ShellEnvProtocol, NULL, &BufferSize, &Handle);
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if (EFI_ERROR(Status)) {
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DEBUG((D_ERROR, "InitShellApp: Shell environment interfaces not found\n"));
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Print (L"%EInitShellApp: Shell environment interfaces not found%N\n");
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BS->Exit (ImageHandle, Status, 0, NULL);
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}
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Status = BS->HandleProtocol(Handle, &ShellEnvProtocol, (VOID*)&SE);
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ASSERT (!EFI_ERROR(Status));
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/*
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* Done with init
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*/
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return Status;
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}
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VOID
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InstallInternalShellCommand (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable,
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IN SHELLENV_INTERNAL_COMMAND Dispatch,
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IN CHAR16 *Cmd,
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IN CHAR16 *CmdFormat,
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IN CHAR16 *CmdHelpLine,
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IN VOID *CmdVerboseHelp
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)
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{
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VOID *Junk;
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UINTN BufferSize;
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EFI_HANDLE Handle;
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EFI_LOADED_IMAGE *ImageInfo;
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EFI_STATUS Status;
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/*
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* Initialize lib functions
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*/
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InitializeLib (ImageHandle, SystemTable);
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/*
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* If this app has a ShellInterface, then we are not installing as an
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* internal command
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*/
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Status = BS->HandleProtocol(ImageHandle, &ShellInterfaceProtocol, &Junk);
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if (!EFI_ERROR(Status)) {
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return ;
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}
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/*
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* Check to make sure we are loaded as a boot service driver. if not
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* we are not installing as an internal command
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*/
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Status = BS->HandleProtocol(ImageHandle, &LoadedImageProtocol, (VOID*)&ImageInfo);
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if (EFI_ERROR(Status) || ImageInfo->ImageCodeType != EfiBootServicesCode) {
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return ;
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}
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/*
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* OK - we are to install this tool as an internal command.
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*/
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BufferSize = sizeof(Handle);
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Status = BS->LocateHandle(ByProtocol, &ShellEnvProtocol, NULL, &BufferSize, &Handle);
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if (EFI_ERROR(Status)) {
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DEBUG((D_INIT|D_ERROR, "InstallInternalCommand: could not find shell environment\n"));
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BS->Exit (ImageHandle, Status, 0, NULL);
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}
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Status = BS->HandleProtocol(Handle, &ShellEnvProtocol, (VOID*)&SE);
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ASSERT (!EFI_ERROR(Status));
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/*
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* Add it to the environment
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*/
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Status = SE->AddCmd (Dispatch, Cmd, CmdFormat, CmdHelpLine, CmdVerboseHelp);
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DEBUG((D_INIT, "InstallInternalCommand: %hs - %r\n", Cmd, Status));
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/*
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* Since we're only installing not (and not running), and we've done the install
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* call exit. The nshell app's entry point will be invoked again when it's
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* run from "execute commandline"
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*/
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BS->Exit (ImageHandle, Status, 0, NULL);
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}
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