/************************************************************************
 *   IRC - Internet Relay Chat, include/common.h
 *
 *   Copyright (C) 2000-2002 TR-IRCD Development
 *
 *   Copyright (C) 1990 Armin Gruner
 *
 *   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, 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.
 *
 */

/*
 * $Id: common.h,v 5.3 2002/05/28 11:58:10 tr-ircd Exp $ 
 */

#ifndef	__common_include__
# define __common_include__
# if defined( HAVE_PARAM_H )
#	include <sys/param.h>
# endif
# ifndef NULL
#	define NULL 0
# endif
# ifdef TRUE
#	undef TRUE
# endif
# ifdef FALSE
#	undef FALSE
# endif
# define FALSE (0)
# define TRUE  (!FALSE)
# define HIDEME 2
/*
 * Blah. I use these a lot. -Dianora 
 */
# ifdef YES
#	undef YES
# endif
# define YES 1
# ifdef NO
#	undef NO
# endif
# define NO  0
# ifdef FOREVER
#	undef FOREVER
# endif
# define FOREVER for(;;)
/*
 * -Dianora 
 */

# if !defined(STDC_HEADERS)
char *malloc(), *calloc();
void free();
# else
# ifdef MALLOCH
#  include MALLOCH
# endif
# endif

extern int match(char *, char *);
extern int irc_strcmp(char *, char *);
extern int irc_strncmp(char *, char *, int);
extern int irc_equal(int, int);
extern char *myctime(time_t);
extern char *strtoken(char **, char *, char *);

#ifndef HAVE_STRLCPY
size_t strlcpy_irc(char *dst, const char *src, size_t siz);
#endif

#ifndef HAVE_STRLCAT
size_t strlcat_irc(char *dst, const char *src, size_t siz);
#endif

#define DupString(x,y) do{x=MyMalloc(strlen(y)+1);(void)strcpy(x,y);}while(0)
#define EmptyString(x) (!(x) || (*(x) == '\0'))

char *inetntoa(char *in_addr);
const char *inetntop(int af, const void *src, char *dst,
		     unsigned int size);
int inetpton(int af, const char *src, void *dst);

char *strip_tabs(char *dest, const unsigned char *src, size_t len);

/*
 * character macros
 */
extern const unsigned char ToLowerTab[];
#define ToLower(c) (ToLowerTab[(unsigned char)(c)])

extern const unsigned char ToUpperTab[];
#define ToUpper(c) (ToUpperTab[(unsigned char)(c)])

extern const unsigned int CharAttrs[];

#define PRINT_C   0x001
#define CNTRL_C   0x002
#define ALPHA_C   0x004
#define PUNCT_C   0x008
#define DIGIT_C   0x010
#define SPACE_C   0x020
#define NICK_C    0x040
#define CHAN_C    0x080
#define KWILD_C   0x100
#define CHANPFX_C 0x200
#define USER_C    0x400
#define HOST_C    0x800
#define NONEOS_C 0x1000
#define SERV_C   0x2000
#define EOL_C    0x4000

#define IsHostChar(c)   (CharAttrs[(unsigned char)(c)] & HOST_C)
#define IsUserChar(c)   (CharAttrs[(unsigned char)(c)] & USER_C)
#define IsChanPrefix(c) (CharAttrs[(unsigned char)(c)] & CHANPFX_C)
#define IsChanChar(c)   (CharAttrs[(unsigned char)(c)] & CHAN_C)
#define IsKWildChar(c)  (CharAttrs[(unsigned char)(c)] & KWILD_C)
#define IsNickChar(c)   (CharAttrs[(unsigned char)(c)] & NICK_C)
#define IsServChar(c)   (CharAttrs[(unsigned char)(c)] & (NICK_C | SERV_C))
#define IsCntrl(c)      (CharAttrs[(unsigned char)(c)] & CNTRL_C)
#define IsAlpha(c)      (CharAttrs[(unsigned char)(c)] & ALPHA_C)
#define IsSpace(c)      (CharAttrs[(unsigned char)(c)] & SPACE_C)
#define IsLower(c)      (IsAlpha((c)) && ((unsigned char)(c) > 0x5f))
#define IsUpper(c)      (IsAlpha((c)) && ((unsigned char)(c) < 0x60))
#define IsDigit(c)      (CharAttrs[(unsigned char)(c)] & DIGIT_C)
#define IsXDigit(c) (IsDigit(c) || ('a' <= (c) && (c) <= 'f') || \
        ('A' <= (c) && (c) <= 'F'))
#define IsAlNum(c) (CharAttrs[(unsigned char)(c)] & (DIGIT_C | ALPHA_C))
#define IsPrint(c) (CharAttrs[(unsigned char)(c)] & PRINT_C)
#define IsAscii(c) ((unsigned char)(c) < 0x80)
#define IsGraph(c) (IsPrint((c)) && ((unsigned char)(c) != 0x32))
#define IsPunct(c) (!(CharAttrs[(unsigned char)(c)] & \
                                           (CNTRL_C | ALPHA_C | DIGIT_C)))

#define IsNonEOS(c) (CharAttrs[(unsigned char)(c)] & NONEOS_C)
#define IsEol(c) (CharAttrs[(unsigned char)(c)] & EOL_C)

#define BadPtr(x) (!(x) || (*(x) == '\0'))

#define IsValid(c) (((c) >= 'A' && (c) < '~') || IsDigit(c) || (c) == '-')

#endif /* common_include */
