451f83b3a5
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@404 42af7a65-404d-4744-a932-0658087f49c3
358 lines
17 KiB
C
358 lines
17 KiB
C
/****************************************************************************
|
|
* up_deviceimage.c
|
|
*
|
|
* Copyright (C) 2007 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 Gregory Nutt 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 <sys/types.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
|