ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/Misc.c

   1 /** @file
   2   Implementation of various string and line routines.
   3
   4   Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "TextEditor.h"
  10 #include "Misc.h"
  11
  12 /**
  13   Duplicate a EFI_EDITOR_LINE structure.
  14
  15   @param Src                    The line structure to copy from.
  16
  17   @retval NULL                  A memory allocation failed.
  18   @return                       a pointer to the newly allcoated line.
  19 **/
  20 EFI_EDITOR_LINE *
  21 LineDup (
  22   IN  EFI_EDITOR_LINE *Src
  23   )
  24 {
  25   EFI_EDITOR_LINE *Dest;
  26
  27   //
  28   // allocate for the line structure
  29   //
  30   Dest = AllocateZeroPool (sizeof (EFI_EDITOR_LINE));
  31   if (Dest == NULL) {
  32     return NULL;
  33   }
  34   //
  35   // allocate and set the line buffer
  36   //
  37   Dest->Buffer = CatSPrint (NULL, L"%s", Src->Buffer);
  38   if (Dest->Buffer == NULL) {
  39     FreePool (Dest);
  40     return NULL;
  41   }
  42
  43   //
  44   // set the other structure members
  45   //
  46   Dest->Signature = LINE_LIST_SIGNATURE;
  47   Dest->Size      = Src->Size;
  48   Dest->TotalSize = Dest->Size;
  49   Dest->Type      = Src->Type;
  50   Dest->Link      = Src->Link;
  51
  52   return Dest;
  53 }
  54
  55 /**
  56   Free a EFI_EDITOR_LINE structure.
  57
  58   @param Src                    The line structure to free.
  59 **/
  60 VOID
  61 LineFree (
  62   IN  EFI_EDITOR_LINE *Src
  63   )
  64 {
  65   if (Src == NULL) {
  66     return ;
  67   }
  68   //
  69   // free the line buffer and then the line structure itself
  70   //
  71   SHELL_FREE_NON_NULL (Src->Buffer);
  72   SHELL_FREE_NON_NULL (Src);
  73
  74 }
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84