/* * $Id: hex_dump.c,v 1.1.1.1 1999/05/18 15:33:42 dugsong Exp $ * * libnet * hex_dump.c - architecture independent packet dumper * * Copyright (c) 1998, 1999 Mike D. Schiffman * route|daemon9 * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * */ #if (HAVE_CONFIG_H) #include "../include/config.h" #endif #include "../include/libnet.h" /* * Much of this routine ala tcpdump. */ void libnet_hex_dump(u_char *buf, int len, int swap, FILE *stream) { int i, s_cnt; u_short *p; p = (u_short *)buf; s_cnt = len / sizeof(u_short); i = 0; fprintf(stream, "\t"); while (--s_cnt >= 0) { if ((!(i % 8))) { fprintf(stream, "\n%02x\t", (i * 2)); } fprintf(stream, "%04x ", swap ? ntohs(*(p++)) : *(p++)); i++; } /* * Mop up an odd byte. */ if (len & 1) { if ((!(i % 8))) { fprintf(stream, "\n%02x\t", (i * 2)); } fprintf(stream, "%02x ", *(u_char *)p); } } /* EOF */