ShellPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / ShellPkg / Library / UefiShellLevel1CommandsLib / Goto.c

/** @file\r
  Main file for goto shell level 1 function.\r
\r
  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r
  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "UefiShellLevel1CommandsLib.h"\r
\r
/**\r
  Function for 'goto' command.\r
\r
  @param[in] ImageHandle  Handle to the Image (NULL if Internal).\r
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).\r
**/\r
SHELL_STATUS\r
EFIAPI\r
ShellCommandRunGoto (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS          Status;\r
  LIST_ENTRY          *Package;\r
  CHAR16              *ProblemParam;\r
  SHELL_STATUS        ShellStatus;\r
  CHAR16              *CompareString;\r
  UINTN               Size;\r
  SCRIPT_FILE         *CurrentScriptFile;\r
\r
  ShellStatus         = SHELL_SUCCESS;\r
  CompareString       = NULL;\r
\r
  //\r
  // initialize the shell lib (we must be in non-auto-init...)\r
  //\r
  Status = ShellInitialize();\r
  ASSERT_EFI_ERROR(Status);\r
\r
  Status = CommandInit();\r
  ASSERT_EFI_ERROR(Status);\r
\r
  if (!gEfiShellProtocol->BatchIsActive()) {\r
    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel1HiiHandle, L"Goto");\r
    return (SHELL_UNSUPPORTED);\r
  }\r
\r
  //\r
  // parse the command line\r
  //\r
  Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);\r
  if (EFI_ERROR(Status)) {\r
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, L"goto", ProblemParam);\r
      FreePool(ProblemParam);\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else {\r
      ASSERT(FALSE);\r
    }\r
  } else {\r
    if (ShellCommandLineGetRawValue(Package, 2) != NULL) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle, L"goto");\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle, L"goto");\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else {\r
      Size = 0;\r
      ASSERT((CompareString == NULL && Size == 0) || (CompareString != NULL));\r
      CompareString = StrnCatGrow(&CompareString, &Size, L":", 0);\r
      CompareString = StrnCatGrow(&CompareString, &Size, ShellCommandLineGetRawValue(Package, 1), 0);\r
      //\r
      // Check forwards and then backwards for a label...\r
      //\r
      if (!MoveToTag(GetNextNode, L"endfor", L"for", CompareString, ShellCommandGetCurrentScriptFile(), FALSE, FALSE, TRUE)) {\r
        CurrentScriptFile = ShellCommandGetCurrentScriptFile();\r
        ShellPrintHiiEx(\r
          -1,\r
          -1,\r
          NULL,\r
          STRING_TOKEN (STR_SYNTAX_NO_MATCHING),\r
          gShellLevel1HiiHandle,\r
          CompareString,\r
          L"Goto",\r
          CurrentScriptFile!=NULL\r
            && CurrentScriptFile->CurrentCommand!=NULL\r
            ? CurrentScriptFile->CurrentCommand->Line:0);\r
        ShellStatus = SHELL_NOT_FOUND;\r
      }\r
    FreePool(CompareString);\r
    }\r
    ShellCommandLineFreeVarList (Package);\r
  }\r
\r
  return (ShellStatus);\r
}\r
\r