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Added NXFLAT a bit at a time

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1889 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2009-06-16 22:08:59 +00:00
parent e6b609cac7
commit c344589c85
35 changed files with 3502 additions and 9 deletions
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binfmt/libnxflat/libnxflat_verify.c
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/****************************************************************************
* nxflat/lib/nxflat_stack.c
*
* Copyright (C) 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
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <string.h>
#include <debug.h>
#include <errno.h>
#include <arpa/inet.h>
#include <nuttx/nxflat.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define V_MAP (load_info->vtbl->map)
#define V_UNMAP (load_info->vtbl->unmap)
#define V_ALLOC (load_info->vtbl->alloc)
#define V_FREE (load_info->vtbl->free)
#define V_OPEN (load_info->vtbl->open)
#define V_READ (load_info->vtbl->read)
#define V_CLOSE (load_info->vtbl->close)
#define XFLT_HDR_SIZE sizeof(struct nxflat_hdr_s)
#ifndef MAX
# define MAX(x,y) ((x) > (y) ? (x) : (y))
#endif
/****************************************************************************
* Private Constant Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxflat_verifyheader
****************************************************************************/
int nxflat_verifyheader(const struct nxflat_hdr_s *header)
{
uint16 revision;
if (!header)
{
dbg("NULL NXFLAT header!");
return -ENOEXEC;
}
/* Check the FLT header -- magic number and revision.
*
* If the the magic number does not match. Just return
* silently. This is not our binary.
*/
if (strncmp(header->h_magic, "NXFLAT", 4) != 0)
{
dbg("Unrecognized magic=\"%c%c%c%c\"",
header->h_magic[0], header->h_magic[1],
header->h_magic[2], header->h_magic[3]);
return -ENOEXEC;
}
/* Complain a little more if the version does not match. */
revision = ntohs(header->h_rev);
if (revision != NXFLAT_VERSION_CURRENT)
{
dbg("Unsupported NXFLAT version=%d\n", revision);
return -ENOEXEC;
}
return 0;
}