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55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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/******************************************************************************
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*
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* (C)Copyright 1998,1999 SysKonnect,
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* a business unit of Schneider & Koch & Co. Datensysteme GmbH.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The information in this file is provided "AS IS" without warranty.
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*
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******************************************************************************/
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#ifndef _MBUF_
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#define _MBUF_
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#ifndef PCI
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#define M_SIZE 4550
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#else
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#define M_SIZE 4504
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#endif
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#ifndef MAX_MBUF
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#define MAX_MBUF 4
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#endif
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#ifndef NO_STD_MBUF
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#define sm_next m_next
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#define sm_off m_off
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#define sm_len m_len
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#define sm_data m_data
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#define SMbuf Mbuf
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#define mtod smtod
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#define mtodoff smtodoff
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#endif
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struct s_mbuf {
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struct s_mbuf *sm_next ; /* low level linked list */
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short sm_off ; /* offset in m_data */
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u_int sm_len ; /* len of data */
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#ifdef PCI
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int sm_use_count ;
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#endif
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char sm_data[M_SIZE] ;
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} ;
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typedef struct s_mbuf SMbuf ;
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/* mbuf head, to typed data */
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#define smtod(x,t) ((t)((x)->sm_data + (x)->sm_off))
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#define smtodoff(x,t,o) ((t)((x)->sm_data + (o)))
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#endif /* _MBUF_ */
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