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/*
* LZFSE decoder functions
*
* Copyright (C) 2019-2024, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <byte_stream.h>
#include <memory.h>
#include <types.h>
#include "libfmos_definitions.h"
#include "libfmos_libcerror.h"
#include "libfmos_libcnotify.h"
#include "libfmos_lzfse_decoder.h"
/* Creates a decoder
* Make sure the value decoder is referencing, is set to NULL
* Returns 1 if successful or -1 on error
*/
int libfmos_lzfse_decoder_initialize(
libfmos_lzfse_decoder_t **decoder,
libcerror_error_t **error )
{
static char *function = "libfmos_lzfse_decoder_initialize";
if( decoder == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid decoder.",
function );
return( -1 );
}
if( *decoder != NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
"%s: invalid decoder value already set.",
function );
return( -1 );
}
*decoder = memory_allocate_structure(
libfmos_lzfse_decoder_t );
if( *decoder == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to create decoder.",
function );
goto on_error;
}
if( memory_set(
*decoder,
0,
sizeof( libfmos_lzfse_decoder_t ) ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_SET_FAILED,
"%s: unable to clear decoder.",
function );
goto on_error;
}
return( 1 );
on_error:
if( *decoder != NULL )
{
memory_free(
*decoder );
*decoder = NULL;
}
return( -1 );
}
/* Frees a decoder
* Returns 1 if successful or -1 on error
*/
int libfmos_lzfse_decoder_free(
libfmos_lzfse_decoder_t **decoder,
libcerror_error_t **error )
{
static char *function = "libfmos_lzfse_decoder_free";
if( decoder == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid decoder.",
function );
return( -1 );
}
if( *decoder != NULL )
{
memory_free(
*decoder );
*decoder = NULL;
}
return( 1 );
}
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