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106 lines
3.6 KiB
C
106 lines
3.6 KiB
C
/** @file
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Main file for goto shell level 1 function.
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(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
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Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "UefiShellLevel1CommandsLib.h"
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/**
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Function for 'goto' command.
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@param[in] ImageHandle Handle to the Image (NULL if Internal).
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@param[in] SystemTable Pointer to the System Table (NULL if Internal).
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**/
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SHELL_STATUS
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EFIAPI
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ShellCommandRunGoto (
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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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LIST_ENTRY *Package;
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CHAR16 *ProblemParam;
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SHELL_STATUS ShellStatus;
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CHAR16 *CompareString;
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UINTN Size;
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SCRIPT_FILE *CurrentScriptFile;
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ShellStatus = SHELL_SUCCESS;
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CompareString = NULL;
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//
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// initialize the shell lib (we must be in non-auto-init...)
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//
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Status = ShellInitialize();
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ASSERT_EFI_ERROR(Status);
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Status = CommandInit();
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ASSERT_EFI_ERROR(Status);
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if (!gEfiShellProtocol->BatchIsActive()) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel1HiiHandle, L"Goto");
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return (SHELL_UNSUPPORTED);
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}
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//
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// parse the command line
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//
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Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
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if (EFI_ERROR(Status)) {
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if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, L"goto", ProblemParam);
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FreePool(ProblemParam);
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ShellStatus = SHELL_INVALID_PARAMETER;
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} else {
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ASSERT(FALSE);
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}
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} else {
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if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle, L"goto");
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ShellStatus = SHELL_INVALID_PARAMETER;
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} else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
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ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle, L"goto");
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ShellStatus = SHELL_INVALID_PARAMETER;
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} else {
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Size = 0;
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ASSERT((CompareString == NULL && Size == 0) || (CompareString != NULL));
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CompareString = StrnCatGrow(&CompareString, &Size, L":", 0);
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CompareString = StrnCatGrow(&CompareString, &Size, ShellCommandLineGetRawValue(Package, 1), 0);
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//
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// Check forwards and then backwards for a label...
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//
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if (!MoveToTag(GetNextNode, L"endfor", L"for", CompareString, ShellCommandGetCurrentScriptFile(), FALSE, FALSE, TRUE)) {
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CurrentScriptFile = ShellCommandGetCurrentScriptFile();
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ShellPrintHiiEx(
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-1,
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-1,
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NULL,
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STRING_TOKEN (STR_SYNTAX_NO_MATCHING),
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gShellLevel1HiiHandle,
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CompareString,
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L"Goto",
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CurrentScriptFile!=NULL
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&& CurrentScriptFile->CurrentCommand!=NULL
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? CurrentScriptFile->CurrentCommand->Line:0);
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ShellStatus = SHELL_NOT_FOUND;
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}
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FreePool(CompareString);
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}
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ShellCommandLineFreeVarList (Package);
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}
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return (ShellStatus);
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}
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