/*
    utils.h -- header file for utils.c
    Copyright (C) 1999-2005 Ivo Timmermans <zarq@iname.com>
                  2000-2006 Guus Sliepen <guus@tinc-vpn.org>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef __TINC_UTILS_H__
#define __TINC_UTILS_H__

#ifdef ENABLE_TRACING
extern volatile int cp_line[];
extern volatile char *cp_file[];
extern volatile int cp_index;
extern void cp_trace(void);

#define cp() { cp_line[cp_index] = __LINE__; cp_file[cp_index] = __FILE__; cp_index++; cp_index %= 16; }
#define ecp() { fprintf(stderr, "Explicit checkpoint in %s line %d\n", __FILE__, __LINE__); }
#else
#define cp()
#define ecp()
#define cp_trace()
#endif

extern void hex2bin(char *src, char *dst, int length);
extern void bin2hex(char *src, char *dst, int length);

#ifdef HAVE_MINGW
extern char *winerror(int);
#define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
#endif

#endif							/* __TINC_UTILS_H__ */