audk/ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/Misc.c

85 lines
1.5 KiB
C

/** @file
Implementation of various string and line routines.
Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "TextEditor.h"
#include "Misc.h"
/**
Duplicate a EFI_EDITOR_LINE structure.
@param Src The line structure to copy from.
@retval NULL A memory allocation failed.
@return a pointer to the newly allcoated line.
**/
EFI_EDITOR_LINE *
LineDup (
IN EFI_EDITOR_LINE *Src
)
{
EFI_EDITOR_LINE *Dest;
//
// allocate for the line structure
//
Dest = AllocateZeroPool (sizeof (EFI_EDITOR_LINE));
if (Dest == NULL) {
return NULL;
}
//
// allocate and set the line buffer
//
Dest->Buffer = CatSPrint (NULL, L"%s", Src->Buffer);
if (Dest->Buffer == NULL) {
FreePool (Dest);
return NULL;
}
//
// set the other structure members
//
Dest->Signature = LINE_LIST_SIGNATURE;
Dest->Size = Src->Size;
Dest->TotalSize = Dest->Size;
Dest->Type = Src->Type;
Dest->Link = Src->Link;
return Dest;
}
/**
Free a EFI_EDITOR_LINE structure.
@param Src The line structure to free.
**/
VOID
LineFree (
IN EFI_EDITOR_LINE *Src
)
{
if (Src == NULL) {
return ;
}
//
// free the line buffer and then the line structure itself
//
SHELL_FREE_NON_NULL (Src->Buffer);
SHELL_FREE_NON_NULL (Src);
}