130 lines
4.8 KiB
C
130 lines
4.8 KiB
C
/* $FreeBSD$ */
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/* $OpenBSD: nfsm_subs.h,v 1.11 2000/01/05 20:50:52 millert Exp $ */
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/* $NetBSD: nfsm_subs.h,v 1.10 1996/03/20 21:59:56 fvdl Exp $ */
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/*-
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* copyright (c) 2003
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* the regents of the university of michigan
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* all rights reserved
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*
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* permission is granted to use, copy, create derivative works and redistribute
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* this software and such derivative works for any purpose, so long as the name
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* of the university of michigan is not used in any advertising or publicity
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* pertaining to the use or distribution of this software without specific,
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* written prior authorization. if the above copyright notice or any other
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* identification of the university of michigan is included in any copy of any
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* portion of this software, then the disclaimer below must also be included.
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*
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* this software is provided as is, without representation from the university
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* of michigan as to its fitness for any purpose, and without warranty by the
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* university of michigan of any kind, either express or implied, including
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* without limitation the implied warranties of merchantability and fitness for
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* a particular purpose. the regents of the university of michigan shall not be
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* liable for any damages, including special, indirect, incidental, or
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* consequential damages, with respect to any claim arising out of or in
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* connection with the use of the software, even if it has been or is hereafter
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* advised of the possibility of such damages.
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*/
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/*-
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
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*/
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#ifndef _RPC_RPCM_SUBS_H_
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#define _RPC_RPCM_SUBS_H_
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/*
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* Now for the macros that do the simple stuff and call the functions
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* for the hard stuff.
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* These macros use several vars. declared in rpcm_reqhead and these
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* vars. must not be used elsewhere unless you are careful not to corrupt
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* them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
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* that may be used so long as the value is not expected to retained
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* after a macro.
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* I know, this is kind of dorkey, but it makes the actual op functions
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* fairly clean and deals with the mess caused by the xdr discriminating
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* unions.
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*/
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#define rpcm_build(a,c,s) \
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{ if ((s) > M_TRAILINGSPACE(mb)) { \
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mb2 = m_get(M_WAITOK, MT_DATA); \
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if ((s) > MLEN) \
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panic("build > MLEN"); \
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mb->m_next = mb2; \
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mb = mb2; \
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mb->m_len = 0; \
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bpos = mtod(mb, caddr_t); \
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} \
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(a) = (c)(bpos); \
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mb->m_len += (s); \
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bpos += (s); }
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#define rpcm_dissect(a, c, s) \
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{ t1 = mtod(md, caddr_t)+md->m_len-dpos; \
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if (t1 >= (s)) { \
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(a) = (c)(dpos); \
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dpos += (s); \
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} else if ((t1 = rpcm_disct(&md, &dpos, (s), t1, &cp2)) != 0){ \
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error = t1; \
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goto rpcmout; \
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} else { \
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(a) = (c)cp2; \
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} }
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#if 0
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#define rpcm_mtouio(p,s) \
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if ((s) > 0 && \
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(t1 = rpcm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \
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error = t1; \
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goto rpcmout; \
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}
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#endif
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#define rpcm_rndup(a) (((a)+3)&(~0x3))
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#define rpcm_adv(s) \
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{ t1 = mtod(md, caddr_t)+md->m_len-dpos; \
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if (t1 >= (s)) { \
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dpos += (s); \
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} else if ((t1 = rpc_adv(&md, &dpos, (s), t1)) != 0) { \
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error = t1; \
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goto rpcmout; \
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} }
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#define RPCMADV(m, s) (m)->m_data += (s)
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#endif /* _RPC_RPCM_SUBS_H_ */
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