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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
--- rblcheck.c.orig Thu Aug 20 14:47:03 1998
+++ rblcheck.c Thu Mar 4 21:28:38 1999
@@ -79,6 +79,7 @@
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
+#include <arpa/inet.h>
#include <resolv.h>
#include <netdb.h>
@@ -203,7 +204,7 @@
* domain. If "txt" is non-zero, we perform a TXT record lookup. We
* return the text returned from a TXT match, or an empty string, on
* a successful match, or NULL on an unsuccessful match. */
-char * rblcheck( int a, int b, int c, int d, char * rbldomain, int txt )
+char * rblcheck( struct in_addr a, char * rbldomain, int txt )
{
char * domain;
char * result = NULL;
@@ -214,12 +215,15 @@
const u_char * cend;
const u_char * rend;
int len;
+ u_char *p;
+ int i, j;
/* 16 characters max in a dotted-quad address, plus 1 for null */
domain = ( char * )malloc( 17 + strlen( rbldomain ) );
+ p = (u_char *)&a;
/* Create a domain name, in reverse. */
- sprintf( domain, "%d.%d.%d.%d.%s", d, c, b, a, rbldomain );
+ sprintf( domain, "%d.%d.%d.%d.%s", p[3], p[2], p[1], p[0], rbldomain );
/* Make our DNS query. */
res_init();
@@ -261,8 +265,8 @@
cp = answer + sizeof( HEADER );
while( *cp != '\0' )
{
- a = *cp++;
- while( a-- )
+ i = *cp++;
+ while( i-- )
cp++;
}
@@ -277,8 +281,8 @@
cp += ( NS_INT16SZ * 2 ) + NS_INT32SZ;
/* Get the length and end of the buffer. */
- NS_GET16( c, cp );
- cend = cp + c;
+ NS_GET16( i, cp );
+ cend = cp + i;
/* Iterate over any multiple answers we might have. In
this context, it's unlikely, but anyway. */
@@ -286,10 +290,10 @@
rend = result + RESULT_SIZE - 1;
while( cp < cend && rp < rend )
{
- a = *cp++;
- if( a != 0 )
- for( b = a; b > 0 && cp < cend && rp < rend;
- b-- )
+ i = *cp++;
+ if( i != 0 )
+ for( j = i; j > 0 && cp < cend && rp < rend;
+ j-- )
{
if( *cp == '\n' || *cp == '"' ||
*cp == '\\' )
@@ -308,23 +312,27 @@
char **argv;
{
extern int optind;
- int a, b, c, d;
+ extern char *optarg;
+ struct hostent *ent;
+ struct in_addr a;
int quiet = 0;
int txt = 0;
int rblfiltered = 0;
char * response;
struct rbl * rblsites = NULL;
struct rbl * ptr;
+ int fail;
+ int c;
/* Add more sites you want in the default list of RBL-alike
systems here. ### An easier way to change this is needed. ### */
rblsites = togglesite( "rbl.maps.vix.com", rblsites );
- rblsites = togglesite( "rbl.dorkslayers.com", rblsites );
+ rblsites = togglesite( "relays.orbs.org", rblsites );
progname = argv[ 0 ];
- while( ( a = getopt( argc, argv, "qtls:c?hv" ) ) != EOF )
- switch( a )
+ while( ( c = getopt( argc, argv, "qtls:c?hv" ) ) != EOF )
+ switch( c )
{
case 'q':
/* Quiet */
@@ -372,10 +380,20 @@
return -1;
}
- if( sscanf( argv[ optind ], "%d.%d.%d.%d", &a, &b, &c, &d ) != 4 ||
- a < 0 || a > 255 || b < 0 || b > 255 || c < 0 || c > 255 ||
- d < 0 || d > 255 )
- {
+ fail = 0;
+ if (ent = gethostbyname(argv[optind])) {
+ memcpy(&a, ent->h_addr_list[0], sizeof(a));
+ if (ent->h_addr_list[1]) {
+ fprintf(stderr, "%s resolved to mutiple addresses: ",
+ argv[optind]);
+ }
+ fprintf(stderr, "checking %s\n", inet_ntoa(a));
+ } else {
+ if (!inet_aton(argv[optind], &a))
+ fail++;
+ }
+
+ if (fail) {
fprintf( stderr, "%s: invalid IP address\n", progname );
usage();
return -1;
@@ -383,7 +401,7 @@
for( ptr = rblsites; ptr != NULL; ptr = ptr->next )
{
- response = rblcheck( a, b, c, d, ptr->site, txt );
+ response = rblcheck( a, ptr->site, txt );
printf( "%s%s%s%s%s%s", !quiet && !response ? "not " : "",
!quiet ? "RBL filtered by " : "", !quiet ? ptr->site : "",
txt && response && strlen( response ) && !quiet ? ": " : "",
|
