119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/* convert.c
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Safe copying of option values into and out of the option buffer, which
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can't be assumed to be aligned. */
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/*
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* Copyright (c) 1995, 1996 The Internet Software Consortium.
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* 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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*
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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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* 3. Neither the name of The Internet Software Consortium nor the names
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* of its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* 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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* This software has been written for the Internet Software Consortium
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* by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
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* Enterprises. To learn more about the Internet Software Consortium,
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* see ``http://www.vix.com/isc''. To learn more about Vixie
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* Enterprises, see ``http://www.vix.com''.
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*/
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#ifndef lint
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static char copyright[] =
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"$Id: convert.c,v 1.4.2.1 1998/06/25 21:11:28 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
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#endif /* not lint */
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#include "dhcpd.h"
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u_int32_t getULong (buf)
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unsigned char *buf;
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{
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unsigned long ibuf;
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memcpy (&ibuf, buf, sizeof (u_int32_t));
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return ntohl (ibuf);
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}
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int32_t getLong (buf)
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unsigned char *buf;
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{
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long ibuf;
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memcpy (&ibuf, buf, sizeof (int32_t));
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return ntohl (ibuf);
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}
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u_int16_t getUShort (buf)
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unsigned char *buf;
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{
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unsigned short ibuf;
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memcpy (&ibuf, buf, sizeof (u_int16_t));
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return ntohs (ibuf);
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}
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int16_t getShort (buf)
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unsigned char *buf;
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{
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short ibuf;
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memcpy (&ibuf, buf, sizeof (int16_t));
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return ntohs (ibuf);
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}
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void putULong (obuf, val)
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unsigned char *obuf;
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u_int32_t val;
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{
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u_int32_t tmp = htonl (val);
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memcpy (obuf, &tmp, sizeof tmp);
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}
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void putLong (obuf, val)
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unsigned char *obuf;
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int32_t val;
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{
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int32_t tmp = htonl (val);
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memcpy (obuf, &tmp, sizeof tmp);
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}
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void putUShort (obuf, val)
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unsigned char *obuf;
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unsigned int val;
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{
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u_int16_t tmp = htons (val);
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memcpy (obuf, &tmp, sizeof tmp);
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}
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void putShort (obuf, val)
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unsigned char *obuf;
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int val;
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{
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int16_t tmp = htons (val);
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memcpy (obuf, &tmp, sizeof tmp);
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}
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