/* * Copyright (c) 1994, 1995, 1996 *	The Regents of the University of California.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * Format and print Novell IPX packets. * Contributed by Brad Parker (brad@fcr.com). */#ifndef lintstatic const char rcsid[] _U_ =    "@(#) $Header: /tcpdump/master/tcpdump/print-ipx.c,v 1.42 2005-05-06 08:26:44 guy Exp $";#endif#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <tcpdump-stdinc.h>#include <stdlib.h>#include <stdio.h>#include <string.h>#include "interface.h"#include "addrtoname.h"#include "ipx.h"#include "extract.h"static const char *ipxaddr_string(u_int32_t, const u_char *);void ipx_decode(const struct ipxHdr *, const u_char *, u_int);void ipx_sap_print(const u_short *, u_int);void ipx_rip_print(const u_short *, u_int);/* * Print IPX datagram packets. */voidipx_print(const u_char *p, u_int length){	const struct ipxHdr *ipx = (const struct ipxHdr *)p;	if (!eflag)		printf("IPX ");	TCHECK(ipx->srcSkt);	(void)printf("%s.%04x > ",		     ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),		     EXTRACT_16BITS(&ipx->srcSkt));	(void)printf("%s.%04x: ",		     ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),		     EXTRACT_16BITS(&ipx->dstSkt));	/* take length from ipx header */	TCHECK(ipx->length);	length = EXTRACT_16BITS(&ipx->length);	ipx_decode(ipx, (u_char *)ipx + ipxSize, length - ipxSize);	return;trunc:	printf("[|ipx %d]", length);}static const char *ipxaddr_string(u_int32_t net, const u_char *node){    static char line[256];    snprintf(line, sizeof(line), "%08x.%02x:%02x:%02x:%02x:%02x:%02x",	    net, node[0], node[1], node[2], node[3], node[4], node[5]);    return line;}voidipx_decode(const struct ipxHdr *ipx, const u_char *datap, u_int length){    register u_short dstSkt;    dstSkt = EXTRACT_16BITS(&ipx->dstSkt);    switch (dstSkt) {      case IPX_SKT_NCP:	(void)printf("ipx-ncp %d", length);	break;      case IPX_SKT_SAP:	ipx_sap_print((u_short *)datap, length);	break;      case IPX_SKT_RIP:	ipx_rip_print((u_short *)datap, length);	break;      case IPX_SKT_NETBIOS:	(void)printf("ipx-netbios %d", length);#ifdef TCPDUMP_DO_SMB	ipx_netbios_print(datap, length);#endif	break;      case IPX_SKT_DIAGNOSTICS:	(void)printf("ipx-diags %d", length);	break;      case IPX_SKT_NWLINK_DGM:	(void)printf("ipx-nwlink-dgm %d", length);#ifdef TCPDUMP_DO_SMB	ipx_netbios_print(datap, length);#endif	break;      case IPX_SKT_EIGRP:	eigrp_print(datap, length);	break;      default:	(void)printf("ipx-#%x %d", dstSkt, length);	break;    }}voidipx_sap_print(const u_short *ipx, u_int length){    int command, i;    TCHECK(ipx[0]);    command = EXTRACT_16BITS(ipx);    ipx++;    length -= 2;    switch (command) {      case 1:      case 3:	if (command == 1)	    (void)printf("ipx-sap-req");	else	    (void)printf("ipx-sap-nearest-req");	TCHECK(ipx[0]);	(void)printf(" %s", ipxsap_string(htons(EXTRACT_16BITS(&ipx[0]))));	break;      case 2:      case 4:	if (command == 2)	    (void)printf("ipx-sap-resp");	else	    (void)printf("ipx-sap-nearest-resp");	for (i = 0; i < 8 && length > 0; i++) {	    TCHECK(ipx[0]);	    (void)printf(" %s '", ipxsap_string(htons(EXTRACT_16BITS(&ipx[0]))));	    if (fn_printzp((u_char *)&ipx[1], 48, snapend)) {		printf("'");		goto trunc;	    }	    TCHECK2(ipx[25], 10);	    printf("' addr %s",		ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (u_char *)&ipx[27]));	    ipx += 32;	    length -= 64;	}	break;      default:	(void)printf("ipx-sap-?%x", command);	break;    }    return;trunc:    printf("[|ipx %d]", length);}voidipx_rip_print(const u_short *ipx, u_int length){    int command, i;    TCHECK(ipx[0]);    command = EXTRACT_16BITS(ipx);    ipx++;    length -= 2;    switch (command) {      case 1:	(void)printf("ipx-rip-req");	if (length > 0) {	    TCHECK(ipx[3]);	    (void)printf(" %u/%d.%d", EXTRACT_32BITS(&ipx[0]),			 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));	}	break;      case 2:	(void)printf("ipx-rip-resp");	for (i = 0; i < 50 && length > 0; i++) {	    TCHECK(ipx[3]);	    (void)printf(" %u/%d.%d", EXTRACT_32BITS(&ipx[0]),			 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));	    ipx += 4;	    length -= 8;	}	break;      default:	(void)printf("ipx-rip-?%x", command);	break;    }    return;trunc:    printf("[|ipx %d]", length);}