1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
* (C)opyright 1993,1994,1995 by Darren Reed.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and due credit is given
* to the original author and the contributors.
*/
#include <stdio.h>
#include <assert.h>
#include <string.h>
#if !defined(__SVR4) && !defined(__svr4__)
#include <strings.h>
#else
#include <sys/byteorder.h>
#endif
#include <sys/types.h>
#include <sys/param.h>
#include <stdlib.h>
#include <unistd.h>
#include <stddef.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip_var.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <netinet/tcp.h>
#include <netinet/ip_icmp.h>
#include <netinet/tcpip.h>
#include <net/if.h>
#include <netinet/ip_fil.h>
#include <netdb.h>
#include <arpa/nameser.h>
#include <resolv.h>
#include "ipf.h"
#include "ipt.h"
#ifndef lint
static char sccsid[] = "@(#)misc.c 1.1 10/15/95 (C) 1995 Darren Reed";
#endif
void debug(), verbose();
extern int opts;
void printpacket(ip)
struct ip *ip;
{
struct tcphdr *tcp;
tcp = (struct tcphdr *)((char *)ip + (ip->ip_hl << 2));
printf("ip %d(%d) %d ", ip->ip_len, ip->ip_hl << 2, ip->ip_p);
if (ip->ip_off & 0x1fff)
printf("@%d", ip->ip_off << 3);
(void)printf(" %s", inet_ntoa(ip->ip_src));
if (!(ip->ip_off & 0x1fff))
if (ip->ip_p == IPPROTO_TCP || ip->ip_p == IPPROTO_UDP)
(void)printf(",%d", ntohs(tcp->th_sport));
(void)printf(" > ");
(void)printf("%s", inet_ntoa(ip->ip_dst));
if (!(ip->ip_off & 0x1fff))
if (ip->ip_p == IPPROTO_TCP || ip->ip_p == IPPROTO_UDP)
(void)printf(",%d", ntohs(tcp->th_dport));
putchar('\n');
}
#ifdef NEED_INET_ATON
u_long inet_aton(buf)
char *buf;
{
u_long n;
char *s = (char *)&n;
int a, b, c, d;
if (sscanf(buf, "%d.%d.%d.%d", &a, &b, &c, &d) != 4)
return -1;
*s++ = (u_char)a;
*s++ = (u_char)b;
*s++ = (u_char)c;
*s++ = (u_char)d;
return n;
}
#endif
void verbose(fmt, p1, p2, p3, p4, p5, p6, p7, p8, p9)
char *fmt, *p1, *p2, *p3, *p4, *p5, *p6, *p7,*p8,*p9;
{
if (opts & OPT_VERBOSE)
printf(fmt, p1, p2, p3, p4, p5, p6, p7, p8, p9);
}
void debug(fmt, p1, p2, p3, p4, p5, p6, p7, p8, p9)
char *fmt, *p1, *p2, *p3, *p4, *p5, *p6, *p7,*p8,*p9;
{
if (opts & OPT_DEBUG)
printf(fmt, p1, p2, p3, p4, p5, p6, p7, p8, p9);
}
|
