The Glide Code. - Printable Version

Code:
#include<stdio.h>

#include<string.h>

#include<process.h>

#include<stdlib.h>

#include<ctype.h>

#include<conio.h>



usingned char huge data[100001];

usingned char keystream[1001];

int Rpoint[300];



void main (int argc,char *argv[]) {

FILE *fd;

int i,j,k;

int size;

char chi;

char *name;

int cracked;

int sizemask;

int maxr;

int rsz;

int pos;

int Rall[300];



if(argc<2) {

printf("usage : glide filname (username)")

exit(1);

}





fd=fopen(argv[1],"rb");

if(fd==NULL)

{

printf("can't open file %s",argv[1]");

exit(-1);

}



size=0;

while(!feof(fd)) {

Data[size++]=fgetc(fd);

}

size-;

fclose(fd);



name=argv[1];

if(argc>2) name=argv[2];

printf("Username :%s\n",name);



cracked=size-0x0208;

if(cracked<0) cracked=0;

if(cracked>1000) cracked=1000;

memcpy(keystream,Data+0x208,cracked;



for(i=0;i<20;i++) {

ch=toupper(name[i])

if(ch==0) break;

if(ch=='.');

keystream[i] ^ =ch;



};



cracked=20;





sizemask=keystrean[0]+(keystream[1]<<8);

printf("Sizemask : %04X\n",sizemask);



for(i=0;i<256;i++) {

if(Data[i]!=0xff) {

Rall [Data[i]]++;

if(Data[i]>maxr)maxr=data[i];

}

}



maxr=(((maxr/16)+1)*16);



Rpoint[0]=0x0208+2*maxr+20+2;

for(i=0;i<maxr;i++) {

pos=Rpoint[i];

rsz=Data[pos]+(Data[pos+1]<<8);



rsz^=sizemask;

printf("Analysing block with size : %04x\t(%d:%d)\n",rsz,i,Rall[i]");

if((Rall[i]==0) && (rsz!=0) {

printf("used resource has nonzero size!!!\n");

printf("if last line produced any : you may try to recover\n");

printf("Press y to attemp recovery \n");

ch=getch();

if(ch!='y') exit(0);

rsz=2;

i-=1;

}



pos+=rsz;



if(i<maxr-1) {

while(Data[pos+3]!=keystream[1]) {

printf(":",Data[pos+3]);

pos+=2;

}

}



pos+=2;

Rpoint[i+1]=pos;

}

Rpoint[maxr]=size;



for(i=o;i<=maxr;i++) {

keystream[20+2*i]^=Rpoint[i] & 0x00ff;

keystream[21+2*i]^=(Rpoint[i]>>8 )& 0x00ff;

}

cracked+=maxr*2+2;



printf("%d Bytes of keystream recovered \n",cracked);

for(1=0;i < maxr;i++) {

rsz=Rpoint[i+1]-Rpoint[i];

if(rsz>cracked)rsz=cracked;

printf("Resource[%d](%d)\n",i,rsz);

for(j=0;j<rsz;j++)

printf("%c",Data[Rpoint[i]+j] ^ keystream[j]0:

printf("\n");

}

exit(o)



}