StdLib/LibC/Uefi/GetPass.c

   1 /** @file Implement the getpass function.
   2
   3   Copyright (c) 2011, Intel Corporation <BR>
   4   All rights reserved. This program and the accompanying materials
   5   are licensed and made available under the terms and conditions of the BSD License
   6   which accompanies this distribution.  The full text of the license may be found at
   7   http://opensource.org/licenses/bsd-license.php
   8
   9   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 **/
  13
  14 #include <Library/ShellLib.h>
  15 #include <Library/MemoryAllocationLib.h>
  16 #include <Library/UefiLib.h>
  17 #include <Library/PcdLib.h>
  18
  19 static CHAR8   *ReturnStringAscii = NULL;
  20
  21 char *getpass(const char *Prompt)
  22 {
  23   BOOLEAN Ascii;
  24   CHAR16  *ReturnString;
  25
  26   Ascii = FALSE;
  27
  28   Print(L"%a", Prompt);
  29
  30   ReturnString = ShellFileHandleReturnLine (gEfiShellParametersProtocol->StdIn, &Ascii);
  31   if (ReturnString == NULL) {
  32     return (NULL);
  33   }
  34
  35   ReturnStringAscii = AllocateZeroPool((StrLen(ReturnString)+1)*sizeof(CHAR8));
  36   if (ReturnStringAscii == NULL) {
  37     return (NULL);
  38   }
  39
  40   UnicodeStrToAsciiStr(ReturnString, ReturnStringAscii);
  41
  42   FreePool(ReturnString);
  43
  44   return (ReturnStringAscii);
  45 }
  46
  47 EFI_STATUS
  48 EFIAPI
  49 DestructMePlease (
  50   IN EFI_HANDLE        ImageHandle,
  51   IN EFI_SYSTEM_TABLE  *SystemTable
  52   )
  53 {
  54   SHELL_FREE_NON_NULL(ReturnStringAscii);
  55
  56   return EFI_SUCCESS;
  57 }