1 /** @file 2 Main file for goto shell level 1 function. 3 4 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR> 5 Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR> 6 This program and the accompanying materials 7 are licensed and made available under the terms and conditions of the BSD License 8 which accompanies this distribution. The full text of the license may be found at 9 http://opensource.org/licenses/bsd-license.php 10 11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 14 **/ 15 16 #include "UefiShellLevel1CommandsLib.h" 17 18 /** 19 Function for 'goto' command. 20 21 @param[in] ImageHandle Handle to the Image (NULL if Internal). 22 @param[in] SystemTable Pointer to the System Table (NULL if Internal). 23 **/ 24 SHELL_STATUS 25 EFIAPI 26 ShellCommandRunGoto ( 27 IN EFI_HANDLE ImageHandle, 28 IN EFI_SYSTEM_TABLE *SystemTable 29 ) 30 { 31 EFI_STATUS Status; 32 LIST_ENTRY *Package; 33 CHAR16 *ProblemParam; 34 SHELL_STATUS ShellStatus; 35 CHAR16 *CompareString; 36 UINTN Size; 37 SCRIPT_FILE *CurrentScriptFile; 38 39 ShellStatus = SHELL_SUCCESS; 40 CompareString = NULL; 41 42 // 43 // initialize the shell lib (we must be in non-auto-init...) 44 // 45 Status = ShellInitialize(); 46 ASSERT_EFI_ERROR(Status); 47 48 Status = CommandInit(); 49 ASSERT_EFI_ERROR(Status); 50 51 if (!gEfiShellProtocol->BatchIsActive()) { 52 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel1HiiHandle, L"Goto"); 53 return (SHELL_UNSUPPORTED); 54 } 55 56 // 57 // parse the command line 58 // 59 Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE); 60 if (EFI_ERROR(Status)) { 61 if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) { 62 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, L"goto", ProblemParam); 63 FreePool(ProblemParam); 64 ShellStatus = SHELL_INVALID_PARAMETER; 65 } else { 66 ASSERT(FALSE); 67 } 68 } else { 69 if (ShellCommandLineGetRawValue(Package, 2) != NULL) { 70 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle, L"goto"); 71 ShellStatus = SHELL_INVALID_PARAMETER; 72 } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) { 73 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle, L"goto"); 74 ShellStatus = SHELL_INVALID_PARAMETER; 75 } else { 76 Size = 0; 77 ASSERT((CompareString == NULL && Size == 0) || (CompareString != NULL)); 78 CompareString = StrnCatGrow(&CompareString, &Size, L":", 0); 79 CompareString = StrnCatGrow(&CompareString, &Size, ShellCommandLineGetRawValue(Package, 1), 0); 80 // 81 // Check forwards and then backwards for a label... 82 // 83 if (!MoveToTag(GetNextNode, L"endfor", L"for", CompareString, ShellCommandGetCurrentScriptFile(), FALSE, FALSE, TRUE)) { 84 CurrentScriptFile = ShellCommandGetCurrentScriptFile(); 85 ShellPrintHiiEx( 86 -1, 87 -1, 88 NULL, 89 STRING_TOKEN (STR_SYNTAX_NO_MATCHING), 90 gShellLevel1HiiHandle, 91 CompareString, 92 L"Goto", 93 CurrentScriptFile!=NULL 94 && CurrentScriptFile->CurrentCommand!=NULL 95 ? CurrentScriptFile->CurrentCommand->Line:0); 96 ShellStatus = SHELL_NOT_FOUND; 97 } 98 FreePool(CompareString); 99 } 100 ShellCommandLineFreeVarList (Package); 101 } 102 103 return (ShellStatus); 104 } 105 106
