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/**
* @file rtems/untar.h
*
* This file defines the interface to methods which can untar an image.
*/
/*
* Written by: Jake Janovetz <janovetz@tempest.ece.uiuc.edu>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef _RTEMS_UNTAR_H
#define _RTEMS_UNTAR_H
#include <stddef.h>
#include <tar.h>
/**
* @defgroup libmisc_untar_img Untar Image
*
* @ingroup libmisc
*/
/**@{*/
#ifdef __cplusplus
extern "C" {
#endif
#define UNTAR_SUCCESSFUL 0
#define UNTAR_FAIL 1
#define UNTAR_INVALID_CHECKSUM 2
#define UNTAR_INVALID_HEADER 3
int Untar_FromMemory(void *tar_buf, size_t size);
int Untar_FromFile(const char *tar_name);
/**************************************************************************
* This converts octal ASCII number representations into an
* unsigned long. Only support 32-bit numbers for now.
*************************************************************************/
extern unsigned long
_rtems_octal2ulong(const char *octascii, size_t len);
/************************************************************************
* Compute the TAR checksum and check with the value in
* the archive. The checksum is computed over the entire
* header, but the checksum field is substituted with blanks.
************************************************************************/
extern int
_rtems_tar_header_checksum(const char *bufr);
#ifdef __cplusplus
}
#endif
/**@}*/
#endif /* _RTEMS_UNTAR_H */
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