127837Sdavidn/*	$FreeBSD: stable/11/contrib/ipfilter/ipsend/ipresend.c 369245 2021-02-09 13:47:46Z git2svn $	*/
250472Speter
327837Sdavidn/*
451231Ssheldonh * ipresend.c (C) 1995-1998 Darren Reed
527837Sdavidn *
627837Sdavidn * See the IPFILTER.LICENCE file for details on licencing.
727837Sdavidn *
827837Sdavidn */
927837Sdavidn#if !defined(lint)
1027837Sdavidnstatic const char sccsid[] = "%W% %G% (C)1995 Darren Reed";
1127837Sdavidnstatic const char rcsid[] = "@(#)$Id$";
1227837Sdavidn#endif
1327837Sdavidn#include <sys/param.h>
1427837Sdavidn#include <sys/types.h>
1527837Sdavidn#include <sys/time.h>
1651231Ssheldonh#include <sys/socket.h>
1727837Sdavidn#include <netinet/in.h>
1851231Ssheldonh#include <arpa/inet.h>
1927837Sdavidn#include <netinet/in_systm.h>
2062640Stg#include <netinet/ip.h>
2162640Stg#include <netinet/ip_var.h>
2262640Stg#include <stdio.h>
2362640Stg#include <stdlib.h>
2462640Stg#include <unistd.h>
2562640Stg#include <netdb.h>
2662640Stg#include <string.h>
2762640Stg#include "ipsend.h"
2862640Stg
2963307Smarkm
3063307Smarkmextern	char	*optarg;
3163307Smarkmextern	int	optind;
3263307Smarkm#ifndef	NO_IPF
3363307Smarkmextern	struct	ipread	pcap, iphex, iptext;
3463307Smarkm#endif
3563311Ssheldonh
3663311Ssheldonhint	opts = 0;
3763311Ssheldonh#ifndef	DEFAULT_DEVICE
3863311Ssheldonh#  ifdef	sun
3963311Ssheldonhchar	default_device[] = "le0";
4063307Smarkm#  else
4163307Smarkmchar	default_device[] = "lan0";
4263307Smarkm#  endif
4353550Sdillon#else
4453550Sdillonchar	default_device[] = DEFAULT_DEVICE;
4553550Sdillon#endif
4653550Sdillon
4753550Sdillon
4853550Sdillonstatic	void	usage(char *);
4953550Sdillonint	main(int, char **);
5053550Sdillon
5153550Sdillon
5251231Ssheldonhstatic void usage(prog)
5327837Sdavidn	char	*prog;
5462640Stg{
5562640Stg	fprintf(stderr, "Usage: %s [options] <-r filename|-R filename>\n\
5662640Stg\t\t-r filename\tsnoop data file to resend\n\
5762640Stg\t\t-R filename\tlibpcap data file to resend\n\
5862640Stg\toptions:\n\
5962640Stg\t\t-d device\tSend out on this device\n\
6062640Stg\t\t-g gateway\tIP gateway to use if non-local dest.\n\
6162640Stg\t\t-m mtu\t\tfake MTU to use when sending out\n\
6262640Stg", prog);
6362640Stg	exit(1);
6462640Stg}
6562640Stg
6662640Stg
6762640Stgint main(argc, argv)
6862640Stg	int	argc;
6962640Stg	char	**argv;
7062640Stg{
7162640Stg	struct	in_addr	gwip;
7262640Stg	struct	ipread	*ipr = NULL;
7327837Sdavidn	char	*name =  argv[0], *gateway = NULL, *dev = NULL;
7462640Stg	char	*resend = NULL;
7527837Sdavidn	int	mtu = 1500, c;
7627837Sdavidn
7727837Sdavidn	while ((c = getopt(argc, argv, "EHPRSTXd:g:m:r:")) != -1)
78		switch (c)
79		{
80		case 'd' :
81			dev = optarg;
82			break;
83		case 'g' :
84			gateway = optarg;
85			break;
86		case 'm' :
87			mtu = atoi(optarg);
88			if (mtu < 28)
89			    {
90				fprintf(stderr, "mtu must be > 28\n");
91				exit(1);
92			    }
93		case 'r' :
94			resend = optarg;
95			break;
96		case 'R' :
97			opts |= OPT_RAW;
98			break;
99#ifndef	NO_IPF
100		case 'H' :
101			ipr = &iphex;
102			break;
103		case 'P' :
104			ipr = &pcap;
105			break;
106		case 'X' :
107			ipr = &iptext;
108			break;
109#endif
110		default :
111			fprintf(stderr, "Unknown option \"%c\"\n", c);
112			usage(name);
113		}
114
115	if (!ipr || !resend)
116		usage(name);
117
118	gwip.s_addr = 0;
119	if (gateway && resolve(gateway, (char *)&gwip) == -1)
120	    {
121		fprintf(stderr,"Cant resolve %s\n", gateway);
122		exit(2);
123	    }
124
125	if (!dev)
126		dev = default_device;
127
128	printf("Device:  %s\n", dev);
129	printf("Gateway: %s\n", inet_ntoa(gwip));
130	printf("mtu:     %d\n", mtu);
131
132	return ip_resend(dev, mtu, ipr, gwip, resend);
133}
134