mirror of
https://github.com/dreamlayers/netbsd-mopd.git
synced 2026-01-11 23:43:12 +00:00
59ff02bd7c
from usr.sbin/mopd/common/pf.c, where only the ad clause is removed, because it has a shared UCB copyright) on Mats O Jansson's files. thorpej OK'd usr.sbin/rpc.yppasswdd/yppasswdd_mkpw.c, where he shares copyright.
148 lines
3.1 KiB
C
148 lines
3.1 KiB
C
/* $NetBSD: get.c,v 1.5 2009/10/20 00:51:13 snj Exp $ */
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/*
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* Copyright (c) 1993-95 Mats O Jansson. All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: get.c,v 1.5 2009/10/20 00:51:13 snj Exp $");
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#endif
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#include "os.h"
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#include "get.h"
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#include "mopdef.h"
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u_char
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mopGetChar(pkt, idx)
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u_char *pkt;
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int *idx;
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{
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u_char ret;
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ret = pkt[*idx];
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*idx = *idx + 1;
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return(ret);
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}
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u_short
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mopGetShort(pkt, idx)
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u_char *pkt;
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int *idx;
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{
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u_short ret;
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ret = pkt[*idx] + pkt[*idx+1]*256;
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*idx = *idx + 2;
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return(ret);
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}
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u_int32_t
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mopGetLong(pkt, idx)
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u_char *pkt;
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int *idx;
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{
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u_int32_t ret;
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ret = pkt[*idx] +
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pkt[*idx+1]*0x100 +
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pkt[*idx+2]*0x10000 +
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pkt[*idx+3]*0x1000000;
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*idx = *idx + 4;
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return(ret);
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}
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void
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mopGetMulti(pkt, idx, dest, size)
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u_char *pkt,*dest;
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int *idx,size;
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{
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int i;
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for (i = 0; i < size; i++) {
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dest[i] = pkt[*idx+i];
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}
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*idx = *idx + size;
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}
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int
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mopGetTrans(pkt, trans)
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u_char *pkt;
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int trans;
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{
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u_short *ptype;
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if (trans == 0) {
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ptype = (u_short *)(pkt+12);
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if (ntohs(*ptype) < 1600) {
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trans = TRANS_8023;
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} else {
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trans = TRANS_ETHER;
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}
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}
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return(trans);
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}
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void
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mopGetHeader(pkt, idx, dst, src, proto, len, trans)
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u_char *pkt, **dst, **src;
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int *idx, *len, trans;
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u_short *proto;
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{
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*dst = pkt;
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*src = pkt + 6;
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*idx = *idx + 12;
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switch(trans) {
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case TRANS_ETHER:
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*proto = (u_short)(pkt[*idx]*256 + pkt[*idx+1]);
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*idx = *idx + 2;
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*len = (int)(pkt[*idx+1]*256 + pkt[*idx]);
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*idx = *idx + 2;
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break;
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case TRANS_8023:
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*len = (int)(pkt[*idx]*256 + pkt[*idx+1]);
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*idx = *idx + 8;
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*proto = (u_short)(pkt[*idx]*256 + pkt[*idx+1]);
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*idx = *idx + 2;
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break;
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}
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}
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u_short
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mopGetLength(pkt, trans)
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u_char *pkt;
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int trans;
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{
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switch(trans) {
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case TRANS_ETHER:
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return(pkt[15]*256 + pkt[14]);
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break;
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case TRANS_8023:
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return(pkt[12]*256 + pkt[13]);
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break;
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}
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return(0);
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}
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