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/*!\file sys/cdefs.h

 *

 * C-compiler definitions.

 */

/*

 * Copyright (c) 1991, 1993

 *	The Regents of the University of California.  All rights reserved.

 *

 * This code is derived from software contributed to Berkeley by

 * Berkeley Software Design, Inc.

 *

 * 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. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *	This product includes software developed by the University of

 *	California, Berkeley and its contributors.

 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.

 *

 *	@(#)cdefs.h	8.7 (Berkeley) 1/21/94

 */

#ifndef __SYS_CDEFS_H

#define __SYS_CDEFS_H

#if defined(__DJGPP__) && !defined(djgpp_cdefs_incl)

  #include "/dev/env/DJDIR/include/sys/cdefs.h"

  #define djgpp_cdefs_incl

#endif

#ifdef __cplusplus

  #define __BEGIN_DECLS  extern "C" {

  #define __END_DECLS    }

#else

  #define __BEGIN_DECLS

  #define __END_DECLS

#endif

#ifndef W32_NAMESPACE

  #define W32_NAMESPACE(x) _w32_ ## x

#endif

#if defined(__CCDL__)

  #define cdecl _cdecl

#elif defined(__MINGW32__) && !defined(cdecl)

  #define cdecl __attribute__((__cdecl__))

#elif defined(_MSC_VER) || defined(__POCC__)

  #undef  cdecl

  #if (_MSC_VER <= 600)

    #define cdecl _cdecl

    #undef  __STDC__

    #define __STDC__ 1

  #else

    #define cdecl __cdecl

  #endif

  #define NO_ANSI_KEYWORDS

#elif defined(__DMC__)

  #define NO_UNDERSCORE __syscall

  /* e.g. int NO_UNDERSCORE foo (void); */

#endif

#ifndef cdecl

#define cdecl

#endif

#if defined(_MSC_VER) && !defined(WIN32) && !defined(_WIN32)

  /*

   * MS's Quick-C/Visual-C (for DOS) insists that signal-handlers, atexit

   * functions and var-arg functions must be defined cdecl.

   * This is only an issue if a program is using 'fastcall' globally

   * (cl option /Gr).

   * On Win32 this isn't an issue since WATT-32.DLL cannot be built

   * as 'fastcall' anyway.

   */

  #undef  MS_CDECL

  #define MS_CDECL   cdecl

#else

  #define MS_CDECL

#endif

struct mbuf {

       struct mbuf  *next;    /* Links mbufs belonging to single packets */

       struct mbuf  *anext;   /* Links packets on queues */

       unsigned      size;    /* Size of associated data buffer */

       int           refcnt;  /* Reference count */

       struct mbuf  *dup;     /* Pointer to duplicated mbuf */

       char         *data;    /* Active working pointers */

       unsigned      cnt;

     };

/*

 * The __CONCAT macro is used to concatenate parts of symbol names, e.g.

 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.

 * The __CONCAT macro is a bit tricky -- make sure you don't put spaces

 * in between its arguments.  __CONCAT can also concatenate double-quoted

 * strings produced by the __STRING macro, but this only works with ANSI C.

 */

#if (defined(__STDC__) && __STDC__) || defined(__cplusplus) || defined(__TURBOC__)

  #undef  __P

  #define __P(protos)     protos        /* full-blown ANSI C */

  #define __CONCAT(x,y)   x ## y

  #define __STRING(x)     #x

  #define __const         const         /* define reserved names to standard */

  #define __signed        signed

  #define __volatile      volatile

  #if defined(__cplusplus)

    #define __inline      inline        /* convert to C++ keyword */

  #elif !defined(__GNUC__) && !defined(_MSC_VER) && !defined(__WATCOMC__)

    #define __inline                    /* delete GCC/MSC/Watcom keyword */

  #endif

#else

  #define __P(protos)     ()            /* traditional C preprocessor */

  #define __CONCAT(x,y)   x/**/y

  #define __STRING(x)     "x"

  #if !defined(__GNUC__) && !defined(_MSC_VER) && !defined(__WATCOMC__)

    #define __inline

  #endif

  #if !defined(__GNUC__)

    #define __const                     /* delete pseudo-ANSI C keywords */

    #define __signed

    #define __volatile

    /*

     * In non-ANSI C environments, new programs will want ANSI-only C keywords

     * deleted from the program and old programs will want them left alone.

     * When using a compiler other than gcc, programs using the ANSI C keywords

     * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.

     * When using "gcc -traditional", we assume that this is the intent; if

     * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.

     */

    #if !defined(NO_ANSI_KEYWORDS)

      #define const                     /* delete ANSI C keywords */

      #define inline

      #define signed

      #define volatile

    #endif

  #endif  /* !__GNUC__ */

#endif  /* !C++ */

/*

 * GCC1 and some versions of GCC2 declare dead (non-returning) and

 * pure (no side effects) functions using "volatile" and "const";

 * unfortunately, these then cause warnings under "-ansi -pedantic".

 * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of

 * these work for GNU C++ (modulo a slight glitch in the C++ grammar

 * in the distribution version of 2.5.5).

 */

#if !defined(__GNUC__) || (__GNUC__ < 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ < 5))

  #undef  __attribute__

  #define __attribute__(x)   /* delete __attribute__ if non-gcc or older than gcc 2.5 */

  #if defined(__GNUC__) && !defined(__STRICT_ANSI__)

    #undef __dead

    #undef __pure

    #define __dead  __volatile

    #define __pure  __const

    #undef  __dead2

    #define __dead2

  #endif

#endif

/*

 * Delete pseudo-keywords wherever they are not available or needed.

 * This seems to break MingW in mysterious ways, so leave it,

 */

#ifndef __dead

#define __dead

#endif

#ifndef __dead2

#define __dead2

#endif

#ifndef __pure

#define __pure

#endif

/*

 * min() & max() macros

 */

#if defined(__HIGHC__)

  #undef  min

  #undef  max

  #define min(a,b) _min(a,b)  /* intrinsic functions */

  #define max(a,b) _max(a,b)

#endif

#ifndef min

#define min(a,b) (((a) < (b)) ? (a) : (b))

#endif

#ifndef max

#define max(a,b) (((a) > (b)) ? (a) : (b))

#endif

/*

 * from NetBSD's <sys/cdefs_aout.h>

 *

 * Written by J.T. Conklin <jtc@wimsey.com> 01/17/95.

 * Public domain.

 */

/* #define _C_LABEL(x)	__CONCAT(_,x) */

#if defined(__GNUC__)

  #define __indr_reference(sym,alias)                \

          __asm__(".stabs \"_" #alias "\",11,0,0,0");\

          __asm__(".stabs \"_" #sym "\",1,0,0,0");

  #define __warn_references(sym,msg)                 \

          __asm__(".stabs \"" msg "\",30,0,0,0");    \

          __asm__(".stabs \"_" #sym "\",1,0,0,0");

  #define __IDSTRING(name,string)  \

          static const char name[] __attribute__((__unused__)) = string

#else

  #define __indr_reference(sym,alias)

  #define __warn_references(sym,msg)

  #define __IDSTRING(name,string)  static const char name[] = string

#endif

#define __RCSID(_s)                __IDSTRING(rcsid,_s)

#define __COPYRIGHT(_s)            __IDSTRING(copyright,_s)

#define __KERNEL_RCSID(_n,_s)      __IDSTRING(__CONCAT(rcsid,_n),_s)

#define __KERNEL_COPYRIGHT(_n,_s)  __IDSTRING(__CONCAT(copyright,_n),_s)

#endif