system76-edk2/ShellPkg/Library/UefiShellLevel3CommandsLib/Ver.c

/** @file
  Main file for Ver shell level 3 function.

  (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
  (C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>
  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include "UefiShellLevel3CommandsLib.h"

#include <Library/ShellLib.h>

STATIC CONST SHELL_PARAM_ITEM  ParamList[] = {
  { L"-s",     TypeFlag },
  { L"-terse", TypeFlag },
  { L"-t",     TypeFlag },
  { L"-_pa",   TypeFlag },
  { NULL,      TypeMax  }
};

/**
  Function for 'ver' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunVer (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS    Status;
  LIST_ENTRY    *Package;
  CHAR16        *ProblemParam;
  SHELL_STATUS  ShellStatus;
  UINT8         Level;

  Level        = PcdGet8 (PcdShellSupportLevel);
  ProblemParam = NULL;
  ShellStatus  = SHELL_SUCCESS;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize ();
  ASSERT_EFI_ERROR (Status);

  Status = CommandInit ();
  ASSERT_EFI_ERROR (Status);

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR (Status)) {
    if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
      ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"ver", ProblemParam);
      FreePool (ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT (FALSE);
    }
  } else {
    //
    // check for "-?"
    //
    if (ShellCommandLineGetFlag (Package, L"-?")) {
      ASSERT (FALSE);
    }

    if (ShellCommandLineGetRawValue (Package, 1) != NULL) {
      //
      // we have too many parameters
      //
      ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"ver");
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      if (ShellCommandLineGetFlag (Package, L"-s")) {
        if (ShellCommandLineGetFlag (Package, L"-terse") || ShellCommandLineGetFlag (Package, L"-t")) {
          ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellLevel3HiiHandle, L"ver", L"-t or -terse", L"-s");
          ShellStatus = SHELL_INVALID_PARAMETER;
        } else {
          ShellPrintHiiEx (
            0,
            gST->ConOut->Mode->CursorRow,
            NULL,
            STRING_TOKEN (STR_VER_OUTPUT_SIMPLE),
            gShellLevel3HiiHandle,
            gEfiShellProtocol->MajorVersion,
            gEfiShellProtocol->MinorVersion
            );
        }
      } else {
        ShellPrintHiiEx (
          0,
          gST->ConOut->Mode->CursorRow,
          NULL,
          STRING_TOKEN (STR_VER_OUTPUT_SHELL),
          gShellLevel3HiiHandle,
          SupportLevel[Level],
          gEfiShellProtocol->MajorVersion,
          gEfiShellProtocol->MinorVersion
          );
        if (!ShellCommandLineGetFlag (Package, L"-terse") && !ShellCommandLineGetFlag (Package, L"-t")) {
          ShellPrintHiiEx (
            -1,
            -1,
            NULL,
            STRING_TOKEN (STR_VER_OUTPUT_SUPPLIER),
            gShellLevel3HiiHandle,
            (CHAR16 *)PcdGetPtr (PcdShellSupplier)
            );

          ShellPrintHiiEx (
            -1,
            -1,
            NULL,
            STRING_TOKEN (STR_VER_OUTPUT_UEFI),
            gShellLevel3HiiHandle,
            (gST->Hdr.Revision&0xffff0000)>>16,
            (gST->Hdr.Revision&0x0000ffff),
            gST->FirmwareVendor,
            gST->FirmwareRevision
            );
        }
      }

      //
      // implementation specific support for displaying processor architecture
      //
      if (ShellCommandLineGetFlag (Package, L"-_pa")) {
        ShellPrintEx (-1, -1, L"%d\r\n", sizeof (UINTN) == sizeof (UINT64) ? 64 : 32);
      }
    }

    //
    // free the command line package
    //
    ShellCommandLineFreeVarList (Package);
  }

  return (ShellStatus);
}