what you don't know can hurt you

madscan.c

madscan.c
Posted Feb 23, 2000
Authored by The Madjoker

Madscan scans for sites which do not block broadcast IP addresses. Based on broadscan, but 4 times faster, and supports scanning a full class A address space.

tags | tool, scanner
systems | unix
MD5 | 32f732a91fe17d57818c4d5186d02f65

madscan.c

Change Mirror Download
 /* madscan v 1.0 by ThE MaDj0kEr
based on broadscan 0.31 by Vacuum http://www.technotronic.com

it's a scanner which finds DUP broadcast ip addresses.
it works 4 times faster than original, and also allows
scanning a full a-class.

Dedicated to Itze... she knows why

Thanks to DarkHeavy for hosting and testing ;)
*/

#include <stdlib.h>
#include <stdio.h>

#define DEBUG 1

FILE *stream;

void pingz0r(int first, int second, int start, int end)
{
int counter,flag,cont;
FILE *stream;
char tempstring[2048];
char parse[2048];

if (second==255) {
for (cont=0; cont<255; cont++)
{
for (counter=start; counter <end; counter++)
{
flag=0;
sprintf(tempstring,"ping -c 2 -n %d.%d.%d.255 2>/dev/null",first,
cont, counter);
stream=popen(tempstring,"r");
while (fgets(parse,sizeof(parse),stream)!=NULL)
{
if (DEBUG) printf("Results:%s",parse);
if (strstr(parse,"DUP"))
{
flag=1;
fclose(stream);
break;
}
}
if (flag==1)
stream=fopen("broadcast.txt", "a");
fprintf(stream, "%d.%d.%d.255\n",first,cont,counter);
fclose( stream);
}
}
} else

for (counter=start; counter <end; counter++)
{
flag=0;
sprintf(tempstring,"ping -c 2 -n %d.%d.%d.255 2>/dev/null",first,
second, counter);
stream=popen(tempstring,"r");
while (fgets(parse,sizeof(parse),stream)!=NULL)
{
if (DEBUG) printf("Results:%s",parse);
if (strstr(parse,"DUP"))
{
flag=1;
fclose(stream);
break;
}
}
if (flag==1)
stream=fopen("broadcast.txt", "a");
fprintf(stream, "%d.%d.%d.255\n",first,second,counter);
fclose( stream);
}
}
}

main(int argc, char *argv[])

{
int first,second,count;

if (argc!=3)
{
printf("\nusage : %s <octet(A)> <octet(B)>\n\n",argv[0]);
printf("Setting octec(B) as 255 then madscan will scan a full
A-Class\n\n");
exit(0);
}

first=atoi(argv[1]);
second=atoi(argv[2]);

if (first==127)
{
printf("%d is a localhost. You have no clue or are trying to break this
progra
m",first);
exit(0);
}
if (first>254 || first <0)
{
printf("First octet is: %d. It must be between <1-254>",first);
exit(0);
}
if (second>255 || second<0)
{
printf("Second octet is: %d. It must be <1-254> or 255 for full-class
scan",second);
exit(0);
}

printf("Scanning for DUP broadcast ip addresses\n");
printf("Results output to broadcast.txt\n");

if (fork()!=0)
pingz0r(first,second,0,32);
else
if (fork()!=0)
pingz0r(first,second,32,64);
else
if (fork()!=0)
pingz0r(first,second,64,96);
else
if (fork()!=0)
pingz0r(first,second,96,128);
else
if(fork()!=0)
pingz0r(first,second,128,160);
else
if (fork()!=0)
pingz0r(first,second,160,192);
else
if (fork()!=0)
pingz0r(first,second,192,224);
else
pingz0r(first,second,224,255);

}




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