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libewf_common.h
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libewf_common.h
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/*
* Common code for libewf - wraps external function calls
*
* Copyright (c) 2006-2007, Joachim Metz <forensics@hoffmannbv.nl>,
* Hoffmann Investigations. All rights reserved.
*
* Refer to AUTHORS for acknowledgements.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the creator, related organisations, nor the names of
* its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* - All advertising materials mentioning features or use of this software
* must acknowledge the contribution by people stated in the acknowledgements.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER, COMPANY AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LIBEWF_COMMON_H
#define _LIBEWF_COMMON_H
#include "libewf_includes.h"
#if defined( HAVE_SYS_STAT_H )
#include <sys/stat.h>
#endif
#if defined( HAVE_FCNTL_H )
#include <fcntl.h>
#endif
#if defined( HAVE_STDLIB_H )
#include <stdlib.h>
#endif
#if defined( HAVE_STRING_H )
#include <string.h>
#endif
#if defined( HAVE_UNISTD_H )
#include <unistd.h>
#endif
#if defined( HAVE_IO_H )
#include <io.h>
#include <share.h>
#endif
#include <time.h>
#if defined( HAVE_STDARG_H )
#include <stdarg.h>
#define VARARGS( function, type, argument ) \
function( type argument, ... )
#define VASTART( argument_list, type, name ) \
va_start( argument_list, name )
#define VAEND( argument_list ) \
va_end( argument_list )
#elif defined( HAVE_VARARGS_H )
#include <varargs.h>
#define VARARGS( function, type, argument ) \
function( va_alist ) va_dcl
#define VASTART( argument_list, type, name ) \
{ type name; va_start( argument_list ); name = va_arg( argument_list, type )
#define VAEND( argument_list ) \
va_end( argument_list ); }
#else
#error No variable argument support available
#endif
#include "libewf_char.h"
#ifdef __cplusplus
extern "C" {
#endif
#define libewf_common_alloc( size ) \
malloc( size )
#define libewf_common_realloc( buffer, size ) \
realloc( (void *) buffer, size )
#define libewf_common_free( buffer ) \
free( (void *) buffer )
#if defined( HAVE_MEMCMP )
#define libewf_common_memcmp( buffer1, buffer2, size ) \
memcmp( (const void *) buffer1, (const void *) buffer2, size )
#else
#error Missing function memcmp
#endif
#if defined( HAVE_MEMCPY )
#define libewf_common_memcpy( destination, source, count ) \
memcpy( (void *) destination, (void *) source, count )
#else
#error Missing function memcpy
#endif
#if defined( HAVE_MEMSET )
#define libewf_common_memset( buffer, value, count ) \
memset( (void *) buffer, (int) value, count )
#else
#error Missing function memset
#endif
#if defined( HAVE_STRLEN )
#define libewf_common_string_length( string ) \
strlen( string )
#else
#error Missing string length function (strlen)
#endif
#if defined( HAVE_MEMCPY )
#define libewf_common_string_copy( destination, source, length ) \
(char *) memcpy( (void *) destination, (void *) source, length )
#elif defined( HAVE_STRNCPY )
#define libewf_common_string_copy( destination, source, length ) \
strncpy( destination, source, length )
#elif defined( HAVE_STRCPY )
#define libewf_common_string_copy( destination, source, length ) \
strcpy( destination, source )
#else
#error Missing string copy function (memcpy, strncpy and strcpy)
#endif
#if defined( HAVE_WIDE_CHARACTER_TYPE ) && defined( HAVE_WIDE_CHARACTER_SUPPORT_FUNCTIONS )
#if defined( HAVE_WCSLEN )
#define libewf_common_wide_string_length( string ) \
wcslen( string )
#else
#error Missing wide character string length function (wcslen)
#endif
#if defined( HAVE_WMEMCPY )
#define libewf_common_wide_string_copy( destination, source, length ) \
(wchar_t *) wmemcpy( (void *) destination, (void *) source, length )
#elif defined( HAVE_WCSNCPY )
#define libewf_common_wide_string_copy( destination, source, length ) \
wcsncpy( destination, source, length )
#elif defined( HAVE_WCSCPY )
#define libewf_common_wide_string_copy( destination, source, length ) \
wcscpy( destination, source )
#else
#error Missing wide character string copy function (wmemcpy, wcsncpy and wcscpy)
#endif
#endif
char *libewf_common_strerror( int error_number );
#if defined( HAVE_WIDE_CHARACTER_TYPE ) && defined( HAVE_WIDE_CHARACTER_SUPPORT_FUNCTIONS )
wchar_t *libewf_common_wide_strerror( int error_number );
#endif
int libewf_common_open( const char *filename, uint8_t flags );
#if defined( HAVE_WIDE_CHARACTER_TYPE ) && defined( HAVE_WIDE_CHARACTER_SUPPORT_FUNCTIONS )
int libewf_common_wide_open( const wchar_t *filename, uint8_t flags );
#endif
#if defined( HAVE_WINDOWS_API )
#define libewf_common_read( file_descriptor, buffer, size ) \
_read( file_descriptor, (void *) buffer, (unsigned int) size )
#else
#define libewf_common_read( file_descriptor, buffer, size ) \
read( file_descriptor, (void *) buffer, size )
#endif
#if defined( HAVE_WINDOWS_API )
#define libewf_common_lseek( file_descriptor, offset, whence ) \
_lseeki64( file_descriptor, offset, whence )
#else
#define libewf_common_lseek( file_descriptor, offset, whence ) \
lseek( file_descriptor, offset, whence )
#endif
#if defined( HAVE_WINDOWS_API )
#define libewf_common_write( file_descriptor, buffer, size ) \
_write( file_descriptor, (const void *) buffer, (unsigned int) size )
#else
#define libewf_common_write( file_descriptor, buffer, size ) \
write( file_descriptor, (const void *) buffer, size )
#endif
#if defined( HAVE_WINDOWS_API )
#define libewf_common_close( file_descriptor ) \
_close( file_descriptor )
#else
#define libewf_common_close( file_descriptor ) \
close( file_descriptor )
#endif
void *libewf_common_alloc_cleared( size_t size, int clear_value );
void *libewf_common_realloc_full_cleared( void *buffer, size_t previous_size, size_t new_size, int clear_value );
void *libewf_common_realloc_new_cleared( void *buffer, size_t previous_size, size_t new_size, int clear_value );
uint8_t libewf_common_test_empty_block( uint8_t *block_buffer, size_t size );
struct tm *libewf_common_localtime( const time_t *timestamp );
char *libewf_common_ctime( const time_t *timestamp );
#if defined( HAVE_WIDE_CHARACTER_TYPE ) && defined( HAVE_WIDE_CHARACTER_SUPPORT_FUNCTIONS )
wchar_t *libewf_common_wide_ctime( const time_t *timestamp );
#endif
#if defined( HAVE_WIDE_CHARACTER_TYPE )
int8_t libewf_common_copy_wchar_to_char( char *destination, const wchar_t *source, size_t length );
int8_t libewf_common_copy_char_to_wchar( wchar_t *destination, const char *source, size_t length );
#endif
#ifdef __cplusplus
}
#endif
#endif
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