EmulatorPkg: Remove framework pkgs dependency from EmulatorPkg

[mirror_edk2.git] / ShellPkg / Library / UefiShellLevel3CommandsLib / Echo.c

/** @file\r
  Main file for Echo shell level 3 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 "UefiShellLevel3CommandsLib.h"\r
\r
#include <Library/ShellLib.h>\r
\r
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {\r
  {L"-on", TypeFlag},\r
  {L"-off", TypeFlag},\r
  {NULL, TypeMax}\r
  };\r
\r
/**\r
  Function for 'echo' 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
ShellCommandRunEcho (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS          Status;\r
  LIST_ENTRY          *Package;\r
  SHELL_STATUS        ShellStatus;\r
  UINTN               ParamCount;\r
  CHAR16              *ProblemParam;\r
  UINTN               Size;\r
  CHAR16              *PrintString;\r
\r
  Size                = 0;\r
  ProblemParam        = NULL;\r
  PrintString         = NULL;\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
  //\r
  // parse the command line\r
  //\r
  Status = ShellCommandLineParseEx (ParamList, &Package, &ProblemParam, TRUE, TRUE);\r
  if (EFI_ERROR(Status)) {\r
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"echo", ProblemParam);\r
      FreePool(ProblemParam);\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else {\r
      ASSERT(FALSE);\r
    }\r
  } else {\r
    //\r
    // check for "-?"\r
    //\r
    if (ShellCommandLineGetFlag(Package, L"-?")) {\r
      ASSERT(FALSE);\r
    }\r
    if (ShellCommandLineGetFlag(Package, L"-on")) {\r
      //\r
      // Turn it on\r
      //\r
      ShellCommandSetEchoState(TRUE);\r
    } else if (ShellCommandLineGetFlag(Package, L"-off")) {\r
      //\r
      // turn it off\r
      //\r
      ShellCommandSetEchoState(FALSE);\r
    } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {\r
      //\r
      // output its current state\r
      //\r
      if (ShellCommandGetEchoState()) {\r
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_ON), gShellLevel3HiiHandle);\r
      } else {\r
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_OFF), gShellLevel3HiiHandle);\r
      }\r
    } else {\r
      //\r
      // print the line\r
      //\r
      for ( ParamCount = 1\r
          ; ShellCommandLineGetRawValue(Package, ParamCount) != NULL\r
          ; ParamCount++\r
         ) {\r
        StrnCatGrow(&PrintString, &Size, ShellCommandLineGetRawValue(Package, ParamCount), 0);\r
        if (ShellCommandLineGetRawValue(Package, ParamCount+1) != NULL) {\r
          StrnCatGrow(&PrintString, &Size, L" ", 0);\r
        }\r
      }\r
      ShellPrintEx(-1, -1, L"%s\r\n", PrintString);\r
      SHELL_FREE_NON_NULL(PrintString);\r
    }\r
\r
    //\r
    // free the command line package\r
    //\r
    ShellCommandLineFreeVarList (Package);\r
  }\r
\r
  return (ShellStatus);\r
}\r
\r