Viewing file:  mbuf.h (1.34 KB) -rw-r--r--
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/******************************************************************************
*
* (C)Copyright 1998,1999 SysKonnect,
* a business unit of Schneider & Koch & Co. Datensysteme GmbH.
*
* 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.
*
* The information in this file is provided "AS IS" without warranty.
*
******************************************************************************/
#ifndef _MBUF_
#define _MBUF_
#ifndef PCI
#define M_SIZE 4550
#else
#define M_SIZE 4504
#endif
#ifndef MAX_MBUF
#define MAX_MBUF 4
#endif
#ifndef NO_STD_MBUF
#define sm_next m_next
#define sm_off m_off
#define sm_len m_len
#define sm_data m_data
#define SMbuf Mbuf
#define mtod smtod
#define mtodoff smtodoff
#endif
struct s_mbuf {
struct s_mbuf *sm_next ; /* low level linked list */
short sm_off ; /* offset in m_data */
u_int sm_len ; /* len of data */
#ifdef PCI
int sm_use_count ;
#endif
char sm_data[M_SIZE] ;
} ;
typedef struct s_mbuf SMbuf ;
/* mbuf head, to typed data */
#define smtod(x,t) ((t)((x)->sm_data + (x)->sm_off))
#define smtodoff(x,t,o) ((t)((x)->sm_data + (o)))
#endif /* _MBUF_ */
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