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[FreeBSD/releng/10.0.git] / contrib / ipfilter / ipsend / ipresend.c
1 /*      $FreeBSD$       */
2
3 /*
4  * ipresend.c (C) 1995-1998 Darren Reed
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  */
9 #if !defined(lint)
10 static const char sccsid[] = "%W% %G% (C)1995 Darren Reed";
11 static const char rcsid[] = "@(#)$Id$";
12 #endif
13 #include <sys/param.h>
14 #include <sys/types.h>
15 #include <sys/time.h>
16 #include <sys/socket.h>
17 #include <netinet/in.h>
18 #include <arpa/inet.h>
19 #include <netinet/in_systm.h>
20 #include <netinet/ip.h>
21 #ifndef linux
22 #include <netinet/ip_var.h>
23 #endif
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <unistd.h>
27 #include <netdb.h>
28 #include <string.h>
29 #include "ipsend.h"
30
31
32 extern  char    *optarg;
33 extern  int     optind;
34 #ifndef NO_IPF
35 extern  struct  ipread  pcap, iphex, iptext;
36 #endif
37
38 int     opts = 0;
39 #ifndef DEFAULT_DEVICE
40 # ifdef linux
41 char    default_device[] = "eth0";
42 # else
43 #  ifdef        sun
44 char    default_device[] = "le0";
45 #  else
46 #   ifdef       ultrix
47 char    default_device[] = "ln0";
48 #   else
49 #    ifdef      __bsdi__
50 char    default_device[] = "ef0";
51 #    else
52 #     ifdef     __sgi
53 char    default_device[] = "ec0";
54 #     else
55 char    default_device[] = "lan0";
56 #     endif
57 #    endif
58 #   endif
59 #  endif
60 # endif
61 #else
62 char    default_device[] = DEFAULT_DEVICE;
63 #endif
64
65
66 static  void    usage __P((char *));
67 int     main __P((int, char **));
68
69
70 static void usage(prog)
71         char    *prog;
72 {
73         fprintf(stderr, "Usage: %s [options] <-r filename|-R filename>\n\
74 \t\t-r filename\tsnoop data file to resend\n\
75 \t\t-R filename\tlibpcap data file to resend\n\
76 \toptions:\n\
77 \t\t-d device\tSend out on this device\n\
78 \t\t-g gateway\tIP gateway to use if non-local dest.\n\
79 \t\t-m mtu\t\tfake MTU to use when sending out\n\
80 ", prog);
81         exit(1);
82 }
83
84
85 int main(argc, argv)
86         int     argc;
87         char    **argv;
88 {
89         struct  in_addr gwip;
90         struct  ipread  *ipr = NULL;
91         char    *name =  argv[0], *gateway = NULL, *dev = NULL;
92         char    *resend = NULL;
93         int     mtu = 1500, c;
94
95         while ((c = getopt(argc, argv, "EHPRSTXd:g:m:r:")) != -1)
96                 switch (c)
97                 {
98                 case 'd' :
99                         dev = optarg;
100                         break;
101                 case 'g' :
102                         gateway = optarg;
103                         break;
104                 case 'm' :
105                         mtu = atoi(optarg);
106                         if (mtu < 28)
107                             {
108                                 fprintf(stderr, "mtu must be > 28\n");
109                                 exit(1);
110                             }
111                 case 'r' :
112                         resend = optarg;
113                         break;
114                 case 'R' :
115                         opts |= OPT_RAW;
116                         break;
117 #ifndef NO_IPF
118                 case 'H' :
119                         ipr = &iphex;
120                         break;
121                 case 'P' :
122                         ipr = &pcap;
123                         break;
124                 case 'X' :
125                         ipr = &iptext;
126                         break;
127 #endif
128                 default :
129                         fprintf(stderr, "Unknown option \"%c\"\n", c);
130                         usage(name);
131                 }
132
133         if (!ipr || !resend)
134                 usage(name);
135
136         gwip.s_addr = 0;
137         if (gateway && resolve(gateway, (char *)&gwip) == -1)
138             {
139                 fprintf(stderr,"Cant resolve %s\n", gateway);
140                 exit(2);
141             }
142
143         if (!dev)
144                 dev = default_device;
145
146         printf("Device:  %s\n", dev);
147         printf("Gateway: %s\n", inet_ntoa(gwip));
148         printf("mtu:     %d\n", mtu);
149
150         return ip_resend(dev, mtu, ipr, gwip, resend);
151 }