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--- rblcheck.c.orig Thu Aug 20 00:47:03 1998
+++ rblcheck.c Sun May 2 12:39:29 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 +312,28 @@
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 );
+ rblsites = togglesite( "dul.maps.vix.com", 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 +381,20 @@
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 +402,7 @@
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 ? ": " : "",
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