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/****************************************************************************
* net/iob/iob_dump.c
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <stdint.h>
#include <debug.h>
#include <nuttx/net/iob.h>
#ifdef CONFIG_DEBUG
/****************************************************************************
* Pre-processor definitions
****************************************************************************/
/* Select the lowest level debug interface available */
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_ARCH_LOWPUTC
# define message(format, ...) lowsyslog(format, ##__VA_ARGS__)
# else
# define message(format, ...) syslog(format, ##__VA_ARGS__)
# endif
#else
# ifdef CONFIG_ARCH_LOWPUTC
# define message lowsyslog
# else
# define message syslog
# endif
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: iob_dump
*
* Description:
* Dump the contents of a I/O buffer chain
*
****************************************************************************/
void iob_dump(FAR const char *msg, FAR struct iob_s *iob)
{
FAR struct iob_s *head = iob;
uint8_t data[32];
unsigned int nbytes;
unsigned int i;
unsigned int j;
message("%s: iob=%p pktlen=%d\n", msg, head, head->io_pktlen);
for (i = 0; i < head->io_pktlen; i += 32)
{
/* Copy 32-bytes into our local buffer */
nbytes = iob_copyout(data, iob, 32, i);
/* Make sure that we have something to print */
if (nbytes > 0)
{
message("%04x: ", i);
for (j = 0; j < 32; j++)
{
if (j == 16)
{
message(" ");
}
if (i + j < head->io_pktlen)
{
message("%02x", data[j]);
}
else
{
message(" ");
}
}
message(" ");
for (j = 0; j < 32; j++)
{
if (j == 16)
{
message(" ");
}
if (i + j < head->io_pktlen)
{
if (data[j] >= 0x20 && data[j] < 0x7f)
{
message("%c", data[j]);
}
else
{
message(".");
}
}
}
message("\n");
}
}
}
#endif /* CONFIG_DEBUG */
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