release/src/router/openvpn/tap-win32/hexdump.c

   1 /*
   2  *  TAP-Win32/TAP-Win64 -- A kernel driver to provide virtual tap
   3  *                         device functionality on Windows.
   4  *
   5  *  This code was inspired by the CIPE-Win32 driver by Damion K. Wilson.
   6  *
   7  *  This source code is Copyright (C) 2002-2009 OpenVPN Technologies, Inc.,
   8  *  and is released under the GPL version 2 (see below).
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License version 2
  12  *  as published by the Free Software Foundation.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program (see the file COPYING included with this
  21  *  distribution); if not, write to the Free Software Foundation, Inc.,
  22  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29 #include "hexdump.h"
  30
  31 #ifndef NDIS_MINIPORT_DRIVER
  32
  33 VOID (*DbgMessage)(char *p_Format, ...) = DisplayDebugString;
  34
  35 VOID DisplayDebugString (char *p_Format, ...)
  36    {
  37     static char l_Buffer [4096];
  38
  39     va_list l_ArgumentList;
  40     va_start (l_ArgumentList, p_Format);
  41     vsprintf (l_Buffer, p_Format, l_ArgumentList);
  42     va_end (l_ArgumentList);
  43
  44     OutputDebugStringA (l_Buffer);
  45    }
  46
  47 #endif
  48
  49 VOID HexDump (unsigned char *p_Buffer, unsigned long p_Size)
  50    {
  51     unsigned long l_Index, l_Idx;
  52     unsigned char l_Row [17];
  53
  54     for (l_Index = l_Row [16] = 0; l_Index < p_Size || l_Index % 16; ++l_Index)
  55        {
  56         if (l_Index % 16 == 0)
  57           DEBUGP (("%05x   ", l_Index));
  58         DEBUGP (("%02x ", l_Row [l_Index % 16] = (l_Index < p_Size ? p_Buffer [l_Index] : 0)));
  59         l_Row [l_Index % 16] = IfPrint (l_Row [l_Index % 16]);
  60         if ((l_Index + 1) % 16 == 0)
  61           DEBUGP (("   %s\n", l_Row));
  62        }
  63
  64     DEBUGP (("\n"));
  65    }
  66
  67 #ifdef __cplusplus
  68 }
  69 #endif