ShellPkg/UefiShellLib: clarify workaround for unfixable EdkShell bug

[mirror_edk2.git] / ShellPkg / Library / UefiShellDriver1CommandsLib / Reconnect.c

/** @file\r
  Main file for Reconnect shell Driver1 function.\r
\r
  Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>\r
  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r
  (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "UefiShellDriver1CommandsLib.h"\r
\r
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {\r
  {L"-r", TypeFlag},\r
  {NULL, TypeMax}\r
  };\r
\r
/**\r
  Connect all the possible console devices.\r
\r
**/\r
VOID\r
ConnectAllConsoles (\r
  VOID\r
  )\r
{\r
  ShellConnectFromDevPaths(L"ConInDev");\r
  ShellConnectFromDevPaths(L"ConOutDev");\r
  ShellConnectFromDevPaths(L"ErrOutDev");\r
\r
  ShellConnectFromDevPaths(L"ErrOut");\r
  ShellConnectFromDevPaths(L"ConIn");\r
  ShellConnectFromDevPaths(L"ConOut");\r
}\r
\r
\r
/**\r
  Function for 'reconnect' 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
ShellCommandRunReconnect (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  SHELL_STATUS        ShellStatus;\r
  LIST_ENTRY          *Package;\r
  CHAR16              *ProblemParam;\r
  EFI_STATUS          Status;\r
\r
  gInReconnect = TRUE;\r
  ShellStatus = SHELL_SUCCESS;\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
  //\r
  // parse the command line\r
  //\r
  Status = ShellCommandLineParse (ParamList, &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), gShellDriver1HiiHandle, L"reconnect", ProblemParam);\r
      FreePool(ProblemParam);\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else {\r
      ASSERT(FALSE);\r
    }\r
  } else {\r
    ShellStatus = ShellCommandRunDisconnect(ImageHandle, SystemTable);\r
    if (ShellStatus == SHELL_SUCCESS) {\r
      if (ShellCommandLineGetFlag(Package, L"-r")) {\r
        ConnectAllConsoles();\r
      }\r
      ShellStatus = ShellCommandRunConnect(ImageHandle, SystemTable);\r
    }\r
  }\r
\r
  gInReconnect = FALSE;\r
\r
  return (ShellStatus);\r
}\r
\r