ShellPkg/Library/UefiShellLevel1CommandsLib/Exit.c

   1 /** @file
   2   Main file for exit shell level 1 function.
   3
   4   Copyright (c) 2015, Hewlett-Packard Development Company, L.P.<BR>
   5   Copyright (c) 2009 - 2011, 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 STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
  19   {L"/b", TypeFlag},
  20   {NULL, TypeMax}
  21   };
  22
  23 /**
  24   Function for 'exit' command.
  25
  26   @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  27   @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
  28 **/
  29 SHELL_STATUS
  30 EFIAPI
  31 ShellCommandRunExit (
  32   IN EFI_HANDLE        ImageHandle,
  33   IN EFI_SYSTEM_TABLE  *SystemTable
  34   )
  35 {
  36   EFI_STATUS          Status;
  37   LIST_ENTRY          *Package;
  38   CHAR16              *ProblemParam;
  39   SHELL_STATUS        ShellStatus;
  40   UINT64              RetVal;
  41   CONST CHAR16        *Return;
  42
  43   ShellStatus         = SHELL_SUCCESS;
  44
  45   //
  46   // initialize the shell lib (we must be in non-auto-init...)
  47   //
  48   Status = ShellInitialize();
  49   ASSERT_EFI_ERROR(Status);
  50
  51   Status = CommandInit();
  52   ASSERT_EFI_ERROR(Status);
  53
  54   //
  55   // parse the command line
  56   //
  57   Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
  58   if (EFI_ERROR(Status)) {
  59     if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
  60       ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, L"exit", ProblemParam);
  61       FreePool(ProblemParam);
  62       ShellStatus = SHELL_INVALID_PARAMETER;
  63     } else {
  64       ASSERT(FALSE);
  65     }
  66   } else {
  67
  68     //
  69     // return the specified error code
  70     //
  71     Return = ShellCommandLineGetRawValue(Package, 1);
  72     if (Return != NULL) {
  73       Status = ShellConvertStringToUint64(Return, &RetVal, FALSE, FALSE);
  74       if (EFI_ERROR(Status)) {
  75         ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellLevel1HiiHandle, L"exit", Return);
  76         ShellStatus = SHELL_INVALID_PARAMETER;
  77       } else {
  78         //
  79         // If we are in a batch file and /b then pass TRUE otherwise false...
  80         //
  81         ShellCommandRegisterExit((BOOLEAN)(gEfiShellProtocol->BatchIsActive() && ShellCommandLineGetFlag(Package, L"/b")), RetVal);
  82
  83         ShellStatus = SHELL_SUCCESS;
  84       }
  85     } else {
  86       // If we are in a batch file and /b then pass TRUE otherwise false...
  87       //
  88       ShellCommandRegisterExit((BOOLEAN)(gEfiShellProtocol->BatchIsActive() && ShellCommandLineGetFlag(Package, L"/b")), 0);
  89
  90       ShellStatus = SHELL_SUCCESS;
  91     }
  92
  93     ShellCommandLineFreeVarList (Package);
  94   }
  95   return (ShellStatus);
  96 }
  97