/****************************************************************************
* up_deviceimage.c
*
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#ifdef VFAT_STANDALONE
# include <stdio.h>
# include <stdlib.h>
# include <zlib.h>
#else
# include <nuttx/config.h>
# include <stdlib.h>
# include <debug.h>
# include <zlib.h>
# include "up_internal.h"
#endif
/****************************************************************************
* Private Definitions
****************************************************************************/
#ifdef VFAT_STANDALONE
# define sdbg(format, arg...) printf(format, ##arg)
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/* This array holds a compressed VFAT file system created with:
*
* /sbin/mkdosfs -C -F 32 -I -n "NuttXTestVol" -S 512 -v nuttx-test.vfat 1024
* sudo mkdir /mnt/loop
* sudo mount -o loop nuttx-test.vfat /mnt/loop
* mkdir /mnt/loop/TestDir
* echo "This is a test" >/mnt/loop/TestDir/TestFile.txt
* sudo umount /mnt/loop
* gzip nuttx-test.vfat
* xxd -g 1 nuttx-test.vfat.gz >some-file
*
* Then manually massaged from the gzip xxd output to zlib format. See
* http://www.faqs.org/rfcs/rfc1952.html. This amounts to:
*
* Remove all of the leading bytes through the null terminator of the file name
* Remove the last 8 bytes
* Add 0x08, 0x1d to the beginning.
*/
static const unsigned char g_vfatdata[] =
{
0x08, 0x1d, 0xed, 0xdd, 0xcf, 0x6a, 0x13, 0x41, 0x18, 0x00, 0xf0, 0xa9, 0x16, 0x5b, 0x2a, 0x6d,
0x73, 0x12, 0x3c, 0x39, 0x78, 0xf3, 0xb2, 0x87, 0x0a, 0x3d, 0x78, 0x32, 0xd0, 0x06, 0x0a, 0xa2,
0xa5, 0xa6, 0xa5, 0x17, 0x95, 0x2d, 0xd9, 0x6a, 0x68, 0x4c, 0xda, 0xec, 0x8a, 0x2d, 0x78, 0xf3,
0x01, 0xf4, 0x39, 0x8a, 0xb7, 0x7a, 0x13, 0xc5, 0x17, 0xe8, 0x5b, 0x78, 0xcb, 0xc5, 0x63, 0x4f,
0xc6, 0x8d, 0x69, 0x8b, 0x45, 0xc4, 0x3f, 0x20, 0x51, 0xfc, 0xfd, 0xd8, 0xe1, 0xdb, 0xd9, 0x8f,
0x81, 0x59, 0xe6, 0x63, 0x59, 0xd8, 0x85, 0xe9, 0xad, 0xbf, 0x7c, 0xbc, 0xd5, 0xe8, 0xe4, 0x9b,
0x79, 0x08, 0xe7, 0xc6, 0x62, 0x38, 0x17, 0x42, 0x98, 0x3c, 0x0a, 0x21, 0x86, 0x9b, 0xe1, 0x44,
0xe5, 0x38, 0x0e, 0x72, 0x63, 0xe1, 0x42, 0x38, 0xeb, 0xda, 0xf2, 0xbd, 0x3b, 0xb5, 0xdb, 0x4f,
0x8a, 0x62, 0xbd, 0x9e, 0xe5, 0xc5, 0x5a, 0xa7, 0x56, 0xad, 0x5f, 0x9f, 0x8b, 0x31, 0xce, 0x5c,
0x79, 0xf7, 0xf4, 0xd9, 0xab, 0xab, 0xef, 0x8b, 0x8b, 0x6b, 0xaf, 0x67, 0xde, 0x4c, 0x84, 0xc3,
0xca, 0xfd, 0xde, 0xc7, 0xb9, 0x0f, 0x87, 0x97, 0x0e, 0x2f, 0xf7, 0x3e, 0xd5, 0x1f, 0x35, 0xf3,
0x58, 0x1e, 0xed, 0x4e, 0x11, 0xd3, 0xb8, 0xd1, 0xe9, 0x14, 0xe9, 0x46, 0x2b, 0x8b, 0x8d, 0x66,
0xbe, 0x95, 0xc4, 0xb8, 0xdc, 0xca, 0xd2, 0x3c, 0x8b, 0xcd, 0x76, 0x9e, 0x75, 0xcf, 0xe4, 0x37,
0x5b, 0x9d, 0xed, 0xed, 0xbd, 0x98, 0xb6, 0x1b, 0xd3, 0x53, 0xdb, 0xdd, 0x2c, 0xcf, 0xcb, 0xd3,
0xbd, 0xb8, 0x95, 0xed, 0xc5, 0xa2, 0x13, 0x8b, 0x6e, 0x99, 0x79, 0x98, 0x36, 0xdb, 0x31, 0x49,
0x92, 0x38, 0x3d, 0x15, 0xf8, 0x91, 0xd5, 0xfd, 0x95, 0x95, 0xb4, 0x3a, 0xea, 0x59, 0xf0, 0x67,
0x75, 0xbb, 0xd5, 0xf4, 0xed, 0x44, 0x08, 0xe3, 0xdf, 0x64, 0x56, 0xf7, 0x47, 0x30, 0x1d, 0x00,
0x60, 0xc4, 0x7a, 0xde, 0xff, 0xff, 0x63, 0xde, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x76, 0x47, 0xfd, 0xfe, 0x6c, 0xbf, 0x6c, 0x27, 0x71, 0xd0,
0x46, 0x3d, 0x27, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0xd7, 0xf8, 0xfe, 0x0f, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xbe, 0xaf, 0x36, 0xee, 0x9c, 0x0c, 0xe1, 0xc6, 0xf3,
0x83, 0xf9, 0x83, 0xf9, 0x61, 0x1c, 0xe6, 0xab, 0xf5, 0x90, 0x85, 0x3c, 0x14, 0x61, 0x21, 0xcc,
0x86, 0x07, 0xcd, 0xd0, 0x2d, 0xaf, 0xf5, 0xbf, 0x18, 0xc6, 0xfa, 0xe2, 0xdd, 0xfa, 0xc2, 0xd2,
0x4a, 0x2c, 0x55, 0x42, 0xe3, 0xc5, 0xf1, 0xf8, 0x41, 0x3c, 0x3f, 0xd2, 0xfb, 0xe2, 0xe7, 0x24,
0xf1, 0x54, 0x25, 0x84, 0x9d, 0xe3, 0xf5, 0xdb, 0x39, 0x5d, 0xbf, 0x24, 0xf9, 0x5e, 0x7e, 0x38,
0xfe, 0xb4, 0x3e, 0x6a, 0x65, 0x7d, 0xec, 0x36, 0x43, 0xab, 0xec, 0x26, 0x65, 0x77, 0xb7, 0xcc,
0x15, 0x65, 0x1b, 0xd4, 0x47, 0x6d, 0xe9, 0xd6, 0x62, 0x7d, 0xbd, 0x1e, 0xcf, 0xd6, 0xc7, 0x78,
0xf0, 0xa3, 0xc9, 0xe8, 0x9d, 0x6c, 0xc4, 0x9b, 0xc6, 0xa2, 0x7c, 0x08, 0xd8, 0x33, 0x17, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x77, 0x7d, 0x06
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_deviceimage
*
* Description: Return an allocated buffer representing an in-memory VFAT
* file system.
*
****************************************************************************/
char *up_deviceimage(void)
{
char *pbuffer;
int bufsize = 1024*1024;
int offset = 0;
z_stream strm;
int ret;
/* Ininitilize inflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.avail_in = 0;
strm.next_in = Z_NULL;
ret = inflateInit(&strm);
if (ret != Z_OK)
{
sdbg("inflateInit FAILED: ret=%d msg=\"%s\"\n", ret, strm.msg ? strm.msg : "No message" );
return NULL;
}
/* Allocate a buffer to hold the decompressed buffer. We may have
* to reallocate this a few times to get the size right.
*/
pbuffer = (char*)malloc(bufsize);
/* Set up the input buffer */
strm.avail_in = sizeof(g_vfatdata);
strm.next_in = (Bytef*)g_vfatdata;
/* Run inflate() on input until output buffer not full */
do {
/* Set up to catch the next output chunk in the output buffer */
strm.avail_out = bufsize - offset;
strm.next_out = (Bytef*)&pbuffer[offset];
/* inflate */
ret = inflate(&strm, Z_NO_FLUSH);
/* Handle inflate() error return values */
switch (ret)
{
case Z_NEED_DICT:
case Z_DATA_ERROR:
case Z_MEM_ERROR:
case Z_STREAM_ERROR:
sdbg("inflate FAILED: ret=%d msg=\"%s\"\n", ret, strm.msg ? strm.msg : "No message" );
(void)inflateEnd(&strm);
free(pbuffer);
return NULL;
}
/* If avail_out is zero, then inflate() returned only
* because it is out of buffer space. In this case, we
* will have to reallocate the buffer and try again.
*/
if (strm.avail_out == 0)
{
int newbufsize = bufsize + 128*1024;
char *newbuffer = realloc(pbuffer, newbufsize);
if (!newbuffer)
{
free(pbuffer);
return NULL;
}
else
{
pbuffer = newbuffer;
offset = bufsize;
bufsize = newbufsize;
}
}
else
{
/* There are unused bytes in the buffer, reallocate to
* correct size.
*/
int newbufsize = bufsize - strm.avail_out;
char *newbuffer = realloc(pbuffer, newbufsize);
if (!newbuffer)
{
free(pbuffer);
return NULL;
}
else
{
pbuffer = newbuffer;
bufsize = newbufsize;
}
}
} while (strm.avail_out == 0 && ret != Z_STREAM_END);
(void)inflateEnd(&strm);
return pbuffer;
}
/****************************************************************************
* Name: main
*
* Description: Used to test decompression logic
*
* gcc -g -Wall -DVFAT_STANDALONE -lz -o vfat-test up_deviceimage.c
*
****************************************************************************/
#ifdef VFAT_STANDALONE
int main(int argc, char **argv, char **envp)
{
char *deviceimage;
int cmf;
int fdict;
int flg;
int check;
cmf = g_vfatdata[0];
printf("CMF=%02x: CM=%d CINFO=%d\n", cmf, cmf &0x0f, cmf >> 4);
flg = g_vfatdata[1];
fdict = (flg >> 5) & 1;
printf("FLG=%02x: FCHECK=%d FDICT=%d FLEVEL=%d\n", flg, flg &0x1f, fdict, flg >> 6);
/* The FCHECK value must be such that CMF and FLG, when viewed as
* a 16-bit unsigned integer stored in MSB order (CMF*256 + FLG),
* is a multiple of 31.
*/
check = cmf*256 + flg;
if (check % 31 != 0)
{
printf("Fails check: %04x is not a multiple of 31\n", check);
}
deviceimage = up_deviceimage();
if (deviceimage)
{
printf("Inflate SUCCEEDED\n");
free(deviceimage);
return 0;
}
else
{
printf("Inflate FAILED\n");
return 1;
}
}
#endif
