ShellPkg/Library/UefiShellLevel1CommandsLib/Exit.c

   1 /** @file
   2   Main file for exit shell level 1 function.
   3
   4   Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include "UefiShellLevel1CommandsLib.h"
  16
  17 STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
  18   {L"/b", TypeFlag},
  19   {NULL, TypeMax}
  20   };
  21
  22 /**
  23   Function for 'exit' command.
  24
  25   @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  26   @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
  27 **/
  28 SHELL_STATUS
  29 EFIAPI
  30 ShellCommandRunExit (
  31   IN EFI_HANDLE        ImageHandle,
  32   IN EFI_SYSTEM_TABLE  *SystemTable
  33   )
  34 {
  35   EFI_STATUS          Status;
  36   LIST_ENTRY          *Package;
  37   CHAR16              *ProblemParam;
  38   SHELL_STATUS        ShellStatus;
  39
  40   ShellStatus         = SHELL_SUCCESS;
  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   //
  52   // parse the command line
  53   //
  54   Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
  55   if (EFI_ERROR(Status)) {
  56     if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
  57       ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, ProblemParam);
  58       FreePool(ProblemParam);
  59       ShellStatus = SHELL_INVALID_PARAMETER;
  60     } else {
  61       ASSERT(FALSE);
  62     }
  63   } else {
  64
  65     //
  66     // If we are in a batch file and /b then pass TRUE otherwise false...
  67     //
  68     ShellCommandRegisterExit((BOOLEAN)(gEfiShellProtocol->BatchIsActive() && ShellCommandLineGetFlag(Package, L"/b")));
  69
  70     //
  71     // return the specified error code
  72     //
  73     if (ShellCommandLineGetRawValue(Package, 1) != NULL) {
  74       ShellStatus = (SHELL_STATUS)(ShellStrToUintn(ShellCommandLineGetRawValue(Package, 1)));
  75     }
  76
  77     ShellCommandLineFreeVarList (Package);
  78   }
  79   return (ShellStatus);
  80 }
  81