150 lines
4.5 KiB
C
150 lines
4.5 KiB
C
/****************************************************************************
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* net/iob/iob_dump.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <debug.h>
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#include <nuttx/net/iob.h>
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#ifdef CONFIG_DEBUG
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/****************************************************************************
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* Pre-processor definitions
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****************************************************************************/
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#ifndef MIN
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# define MIN(a,b) ((a) < (b) ? (a) : (b))
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#endif
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/* Select the lowest level debug interface available */
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#ifdef CONFIG_CPP_HAVE_VARARGS
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# ifdef CONFIG_ARCH_LOWPUTC
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# define message(format, ...) lowsyslog(format, ##__VA_ARGS__)
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# else
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# define message(format, ...) syslog(format, ##__VA_ARGS__)
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# endif
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#else
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# ifdef CONFIG_ARCH_LOWPUTC
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# define message lowsyslog
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# else
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# define message syslog
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# endif
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Function: iob_dump
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*
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* Description:
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* Dump the contents of a I/O buffer chain
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*
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****************************************************************************/
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void iob_dump(FAR const char *msg, FAR struct iob_s *iob, unsigned int len)
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{
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uint8_t data[32];
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unsigned int nbytes;
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unsigned int i;
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unsigned int j;
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message("%s: iob=%p len = %d pktlen=%d\n", msg, iob, len, iob->io_pktlen);
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len = MIN(len, iob->io_pktlen);
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for (i = 0; i < len; i += 32)
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{
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/* Copy 32-bytes into our local buffer */
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nbytes = iob_copyout(data, iob, 32, i);
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/* Make sure that we have something to print */
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if (nbytes > 0)
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{
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message("%04x: ", i);
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for (j = 0; j < 32; j++)
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{
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if (j == 16)
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{
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message(" ");
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}
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if (i + j < len)
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{
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message("%02x", data[j]);
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}
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else
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{
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message(" ");
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}
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}
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message(" ");
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for (j = 0; j < 32; j++)
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{
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if (j == 16)
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{
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message(" ");
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}
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if (i + j < len)
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{
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if (data[j] >= 0x20 && data[j] < 0x7f)
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{
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message("%c", data[j]);
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}
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else
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{
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message(".");
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}
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}
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}
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message("\n");
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}
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}
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}
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#endif /* CONFIG_DEBUG */
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