/* *   OSPFD routing daemon *   Copyright (C) 1998 by John T. Moy *    *   This program is free software; you can redistribute it and/or *   modify it under the terms of the GNU General Public License *   as published by the Free Software Foundation; either version 2 *   of the License, or (at your option) any later version. *    *   This program is distributed in the hope that it will be useful, *   but WITHOUT ANY WARRANTY; without even the implied warranty of *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *   GNU General Public License for more details. *    *   You should have received a copy of the GNU General Public License *   along with this program; if not, write to the Free Software *   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */#include <stdarg.h>#include <string.h>/*  * Machine-dependent and compiler-dependent constants and macros. * Defined here for a Intel architecture, and a compiler whose * "ints" are 32-bits and "shorts" 16. */// Definition of fixed-length typestypedef unsigned char byte;	// Byte (8-bit unsigned)typedef	unsigned short uns16;	// 16-bit unsignedtypedef	unsigned uns32;		// 32-bit unsignedtypedef char int8;		// 8-bit signedtypedef	short int16;		// 16-bit signedtypedef	int int32;		// 32-bit signedtypedef unsigned long word;	// Generic pointer// Constant for fletcher checksum calculationconst int MODX = 4102;// Machine-dependencies in the socket interfacetypedef int socklen;		// length arg to accept(), etc.#define PHYBINDADDR "127.0.0.1"// Convert fields between network and machine byte-order// This involves byte-swapping on an Intel architecture	// Convert a 32-bit unsigned quantity from network to host orderinline uns32 ntoh32(uns32 value){    uns32 swval;    swval = (value << 24);    swval |= (value << 8) & 0x00ff0000L;    swval |= (value >> 8) & 0x0000ff00L;    swval |= (value >> 24);    return(swval);}// Convert a 32-bit quantity from host to network orderinline uns32 hton32(uns32 value){    return(ntoh32(value));}// Convert a 16-bit unsigned quantity from network to host orderinline uns16 ntoh16(uns16 value){    uns16 swval;    swval = (value << 8);    swval |= (value >> 8) & 0xff;    return(swval);}// Convert a 16-bit quantity from host to network orderinline uns16 hton16(uns16 value){    return(ntoh16(value));}/* Standard utility functions * These have been defined in the standard Linux * header files above. * * void	bcopy(const void *from, void *to, size_t);	// Byte copy * int bcmp(const void *from, const void *to, size_t);	// Byte compare * void	bzero(void *ptr, size_t);		// Zero memory * char *strncpy(char *dest, const char *src, size_t n); */