/* $OpenBSD: convert.c,v 1.5 2016/02/06 23:50:10 krw Exp $ */ /* * Safe copying of option values into and out of the option buffer, * which can't be assumed to be aligned. */ /* * Copyright (c) 1995, 1996 The Internet Software Consortium. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of The Internet Software Consortium nor the names * of its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * This software has been written for the Internet Software Consortium * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie * Enterprises. To learn more about the Internet Software Consortium, * see ``http://www.vix.com/isc''. To learn more about Vixie * Enterprises, see ``http://www.vix.com''. */ #include <sys/types.h> #include <sys/socket.h> #include <net/if.h> #include <netinet/in.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "dhcp.h" #include "tree.h" #include "dhcpd.h" u_int32_t getULong(unsigned char *buf) { u_int32_t ibuf; memcpy(&ibuf, buf, sizeof(ibuf)); return (ntohl(ibuf)); } u_int16_t getUShort(unsigned char *buf) { u_int16_t ibuf; memcpy(&ibuf, buf, sizeof(ibuf)); return (ntohs(ibuf)); } void putULong(unsigned char *obuf, u_int32_t val) { u_int32_t tmp = htonl(val); memcpy(obuf, &tmp, sizeof(tmp)); } void putLong(unsigned char *obuf, int32_t val) { int32_t tmp = htonl(val); memcpy(obuf, &tmp, sizeof(tmp)); } void putUShort(unsigned char *obuf, unsigned int val) { u_int16_t tmp = htons(val); memcpy(obuf, &tmp, sizeof(tmp)); } void putShort(unsigned char *obuf, int val) { int16_t tmp = htons(val); memcpy(obuf, &tmp, sizeof(tmp)); }