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/** @file
Main file for goto shell level 1 function.
Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
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 "UefiShellLevel1CommandsLib.h"
/**
Function for 'goto' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunGoto (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CHAR16 *CompareString;
UINTN Size;
SCRIPT_FILE *CurrentScriptFile;
ShellStatus = SHELL_SUCCESS;
CompareString = NULL;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize();
ASSERT_EFI_ERROR(Status);
Status = CommandInit();
ASSERT_EFI_ERROR(Status);
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel1HiiHandle, L"Goto");
return (SHELL_UNSUPPORTED);
}
//
// parse the command line
//
Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR(Status)) {
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT(FALSE);
}
} else {
if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Size = 0;
ASSERT((CompareString == NULL && Size == 0) || (CompareString != NULL));
CompareString = StrnCatGrow(&CompareString, &Size, L":", 0);
CompareString = StrnCatGrow(&CompareString, &Size, ShellCommandLineGetRawValue(Package, 1), 0);
//
// Check forwards and then backwards for a label...
//
if (!MoveToTag(GetNextNode, L"endfor", L"for", CompareString, ShellCommandGetCurrentScriptFile(), FALSE, FALSE, TRUE)) {
CurrentScriptFile = ShellCommandGetCurrentScriptFile();
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_SYNTAX_NO_MATCHING),
gShellLevel1HiiHandle,
CompareString,
L"Goto",
CurrentScriptFile!=NULL
&& CurrentScriptFile->CurrentCommand!=NULL
? CurrentScriptFile->CurrentCommand->Line:0);
ShellStatus = SHELL_NOT_FOUND;
}
FreePool(CompareString);
}
ShellCommandLineFreeVarList (Package);
}
return (ShellStatus);
}
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