99 lines
1.7 KiB
C
99 lines
1.7 KiB
C
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/*
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* $smu-mark$
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* $name: getlhs.c$
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* $author: Salvatore Sanfilippo <antirez@invece.org>$
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* $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$
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* $license: This software is under GPL version 2 of license$
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* $date: Fri Nov 5 11:55:47 MET 1999$
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* $rev: 8$
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*/
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/* $Id: getlhs.c,v 1.10 2003/07/25 12:11:24 njombart Exp $ */
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#include <string.h>
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#include "hping2.h"
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#include "globals.h"
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#if (!defined OSTYPE_LINUX) || (defined FORCE_LIBPCAP)
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int get_linkhdr_size(char *ifname)
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{
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int dltype = pcap_datalink(pcapfp);
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if (opt_debug)
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printf("DEBUG: dltype is %d\n", dltype);
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switch(dltype) {
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case DLT_EN10MB:
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case DLT_IEEE802:
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linkhdr_size = 14;
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break;
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case DLT_SLIP:
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case DLT_SLIP_BSDOS:
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linkhdr_size = 16;
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break;
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case DLT_PPP:
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case DLT_NULL:
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#ifdef DLT_PPP_SERIAL
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case DLT_PPP_SERIAL:
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#endif
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#ifdef DLT_LOOP
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case DLT_LOOP:
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#endif
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linkhdr_size = 4;
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break;
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case DLT_PPP_BSDOS:
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linkhdr_size = 24;
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break;
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case DLT_FDDI:
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linkhdr_size = 13;
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break;
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case DLT_RAW:
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linkhdr_size = 0;
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break;
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case DLT_IEEE802_11:
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linkhdr_size = 14;
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break;
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case DLT_IEEE802_11:
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linkhdr_size = 14;
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break;
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case DLT_TOKEN_RING:
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linkhdr_size = 20;
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break;
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case DLT_ATM_RFC1483:
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#ifdef DLT_CIP
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case DLT_CIP:
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#endif
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#ifdef DLT_ATM_CLIP
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case DLT_ATM_CLIP:
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#endif
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linkhdr_size = 8;
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break;
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#ifdef DLT_C_HDLC
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case DLT_C_HDLC:
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linkhdr_size = 4;
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break;
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#endif
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#ifdef DLT_LINUX_SLL
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case DLT_LINUX_SLL:
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#endif
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#ifdef DLT_LANE8023
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case DLT_LANE8023:
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#endif
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linkhdr_size = 16;
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break;
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default:
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return -1;
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break;
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}
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return 0;
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}
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#else /* Linux... */
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int get_linkhdr_size(char *ifname)
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{
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linkhdr_size = 0;
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return 0;
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}
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#endif /* (!defined OSTYPE_LINUX) || (defined FORCE_LIBPCAP) */
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