Choosing star sign?

**Epythic** · 05-01-2009, 10:06 AM

Raven is very nice too because that way you really don't need the speed talent line.

I mostly play raven-borns. Just love being able to outrun anything. Essential for archers.

**jaakkos** · 05-02-2009, 12:11 AM

Edit: please use this fixed version instead: http://www.adom.de/forums/showpost.p...0&postcount=67

Code:

/* Pulled from the ADOM server sources, likely not going to get a Biskup seal of approval */

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <syscall.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/user.h>
#include <sys/reg.h>

//#define BIRTHSIGN_ADDR 0x0813EE03 // 1.1.1
#define BIRTHSIGN_ADDR 0x0813AC63 // 1.0.0

const int long_size = sizeof(long);

typedef union {
  char bytes[4];
  long w;
} word;

void getdata(pid_t child, long addr, char *buf, int words)
{ 
  int i;
  word w;

  for(i=0; i<words; i++) {
    w.w = ptrace(PTRACE_PEEKDATA, child, addr + i*4, NULL);
    memcpy(buf + i*4, w.bytes, long_size);
  }
}

void putdata(pid_t child, long addr, char *buf, int words)
{
  int i;
  word w;

  for(i=0; i<words; i++) {
    memcpy(w.bytes, buf + i*4, long_size);
    ptrace(PTRACE_POKEDATA, child, addr + i*4, w.w);
  }
}

void handle_sig(int pid, int status) {
  if(WIFEXITED(status)) {
    exit(0);
  }

  else if(WIFSIGNALED(status)) {
    kill(pid, 9);
    exit(1);
  }
}

int select_month(void) {
  int month;
  char buf[8];

  do {
    system("clear");

    printf("Select the month of your birth:\r\n"
	   "\r\n"
	   "  ? - random\r\n"
	   "\r\n"
	   "  A - Raven\r\n"
	   "  B - Book\r\n"
	   "  C - Wand\r\n"
	   "  D - Unicorn\r\n"
	   "  E - Salamander\r\n"
	   "  F - Dragon\r\n"
	   "  G - Sword\r\n"
	   "  H - Falcon\r\n"
	   "  I - Cup\r\n"
	   "  J - Candle\r\n"
	   "  K - Wolf\r\n"
	   "  L - Tree\r\n"
	   "\r\n"
	   "> ");

    month = toupper(fgetc(stdin));
  } while(month != '?' && (month < 'A' || month > 'L'));

  system("clear");
  return month == '?' ? 0 : month-'A'+1;
}

int main(int argc, char **argv)
{
  pid_t pid;
  int waitv;
  unsigned long breakpoint;
  struct user_regs_struct regs, newregs;
  int month;
  char sage=0;
  long orig_eax;

  sigset_t mask;

  char code[] = {0xcd, 0x80, 0xcc, 0};
  char backup[4];

  if(argc > 1 && !strcmp(argv[1], "--enable-sage"))
     sage = 1;

  sigemptyset(&mask);
  sigaddset(&mask, SIGINT);
  sigaddset(&mask, SIGTSTP);
  sigaddset(&mask, SIGQUIT);
  sigprocmask(SIG_BLOCK, &mask, NULL);

  srand(time(NULL));
  breakpoint = BIRTHSIGN_ADDR;

  switch(pid = fork()) {
    
  case -1:
    perror("fork");
    break;
    
  case 0: /*  child process */
    ptrace(PTRACE_TRACEME, 0, 0, 0);

    if(!sage)
      //execl("/usr/games/adom-111-bin", "/usr/games/adom-111-bin", NULL);
      execl("/usr/games/adom-100-bin", "/usr/games/adom-100-bin", NULL);

    else
      //execl("/var/lib/adom/server/adom-sage", "/var/lib/adom/server/adom-sage", "-a", "/usr/games/adom-111-bin", "-s", "/var/lib/adom/server/adom-sage.so", NULL);
      execl("/var/lib/adom/server/adom-sage", "/var/lib/adom/server/adom-sage", "-a", "/usr/games/adom-100-bin", "-s", "/var/lib/adom/server/adom-sage.so", NULL);
    break;
    
  default: /* parent process */
    wait(&waitv);
    handle_sig(pid, waitv);

    do {
      ptrace(PTRACE_SYSCALL, pid, 0, 0);
      wait(&waitv);

      handle_sig(pid, waitv);
      orig_eax = ptrace(PTRACE_PEEKUSER, pid, 4*ORIG_EAX, NULL);
    } while(orig_eax != SYS_time);

    getdata(pid, breakpoint, backup, 1);
    putdata(pid, breakpoint, code, 1);

    ptrace(PTRACE_CONT, pid, NULL, NULL);
    wait(&waitv);
    handle_sig(pid, waitv);

    ptrace(PTRACE_GETREGS, pid, NULL, &regs);

    month = select_month();
    if(!month) month = rand() % 12;
    else month--;

    regs.eip = breakpoint;
    regs.eax &= 0xFFFF0000;
    regs.eax |= (unsigned int)(30*month + (rand()%30));
  
    ptrace(PTRACE_SETREGS, pid, NULL, &regs);
    putdata(pid, breakpoint, backup, 1);

    ptrace(PTRACE_CONT, pid, NULL, NULL);

    if(wait(&waitv) > 0) {
      handle_sig(pid, waitv);
      kill(pid, 9);
      return 1;
    }
  }
  
  return 0;
}

**Epythic** · 05-02-2009, 11:28 AM

Originally Posted by jaakkos

Code:

/* Pulled from the ADOM server sources, likely not going to get a Biskup seal of approval */

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <syscall.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/user.h>
#include <sys/reg.h>

//#define BIRTHSIGN_ADDR 0x0813EE03 // 1.1.1
#define BIRTHSIGN_ADDR 0x0813AC63 // 1.0.0

const int long_size = sizeof(long);

typedef union {
  char bytes[4];
  long w;
} word;

void getdata(pid_t child, long addr, char *buf, int words)
{ 
  int i;
  word w;

  for(i=0; i<words; i++) {
    w.w = ptrace(PTRACE_PEEKDATA, child, addr + i*4, NULL);
    memcpy(buf + i*4, w.bytes, long_size);
  }
}

void putdata(pid_t child, long addr, char *buf, int words)
{
  int i;
  word w;

  for(i=0; i<words; i++) {
    memcpy(w.bytes, buf + i*4, long_size);
    ptrace(PTRACE_POKEDATA, child, addr + i*4, w.w);
  }
}

void handle_sig(int pid, int status) {
  if(WIFEXITED(status)) {
    exit(0);
  }

  else if(WIFSIGNALED(status)) {
    kill(pid, 9);
    exit(1);
  }
}

int select_month(void) {
  int month;
  char buf[8];

  do {
    system("clear");

    printf("Select the month of your birth:\r\n"
	   "\r\n"
	   "  ? - random\r\n"
	   "\r\n"
	   "  A - Raven\r\n"
	   "  B - Book\r\n"
	   "  C - Wand\r\n"
	   "  D - Unicorn\r\n"
	   "  E - Salamander\r\n"
	   "  F - Dragon\r\n"
	   "  G - Sword\r\n"
	   "  H - Falcon\r\n"
	   "  I - Cup\r\n"
	   "  J - Candle\r\n"
	   "  K - Wolf\r\n"
	   "  L - Tree\r\n"
	   "\r\n"
	   "> ");

    month = toupper(fgetc(stdin));
  } while(month != '?' && (month < 'A' || month > 'L'));

  system("clear");
  return month == '?' ? 0 : month-'A'+1;
}

int main(int argc, char **argv)
{
  pid_t pid;
  int waitv;
  unsigned long breakpoint;
  struct user_regs_struct regs, newregs;
  int month;
  char sage=0;
  long orig_eax;

  sigset_t mask;

  char code[] = {0xcd, 0x80, 0xcc, 0};
  char backup[4];

  if(argc > 1 && !strcmp(argv[1], "--enable-sage"))
     sage = 1;

  sigemptyset(&mask);
  sigaddset(&mask, SIGINT);
  sigaddset(&mask, SIGTSTP);
  sigaddset(&mask, SIGQUIT);
  sigprocmask(SIG_BLOCK, &mask, NULL);

  srand(time(NULL));
  breakpoint = BIRTHSIGN_ADDR;

  switch(pid = fork()) {
    
  case -1:
    perror("fork");
    break;
    
  case 0: /*  child process */
    ptrace(PTRACE_TRACEME, 0, 0, 0);

    if(!sage)
      //execl("/usr/games/adom-111-bin", "/usr/games/adom-111-bin", NULL);
      execl("/usr/games/adom-100-bin", "/usr/games/adom-100-bin", NULL);

    else
      //execl("/var/lib/adom/server/adom-sage", "/var/lib/adom/server/adom-sage", "-a", "/usr/games/adom-111-bin", "-s", "/var/lib/adom/server/adom-sage.so", NULL);
      execl("/var/lib/adom/server/adom-sage", "/var/lib/adom/server/adom-sage", "-a", "/usr/games/adom-100-bin", "-s", "/var/lib/adom/server/adom-sage.so", NULL);
    break;
    
  default: /* parent process */
    wait(&waitv);
    handle_sig(pid, waitv);

    do {
      ptrace(PTRACE_SYSCALL, pid, 0, 0);
      wait(&waitv);

      handle_sig(pid, waitv);
      orig_eax = ptrace(PTRACE_PEEKUSER, pid, 4*ORIG_EAX, NULL);
    } while(orig_eax != SYS_time);

    getdata(pid, breakpoint, backup, 1);
    putdata(pid, breakpoint, code, 1);

    ptrace(PTRACE_CONT, pid, NULL, NULL);
    wait(&waitv);
    handle_sig(pid, waitv);

    ptrace(PTRACE_GETREGS, pid, NULL, &regs);

    month = select_month();
    if(!month) month = rand() % 12;
    else month--;

    regs.eip = breakpoint;
    regs.eax &= 0xFFFF0000;
    regs.eax |= (unsigned int)(30*month + (rand()%30));
  
    ptrace(PTRACE_SETREGS, pid, NULL, &regs);
    putdata(pid, breakpoint, backup, 1);

    ptrace(PTRACE_CONT, pid, NULL, NULL);

    if(wait(&waitv) > 0) {
      handle_sig(pid, waitv);
      kill(pid, 9);
      return 1;
    }
  }
  
  return 0;
}

Woohoo, that's kinda interesting. Thanks for posting.
[Although I couldn't yet get it to work; the starsign selection menu just doesnt show up. No time to debug it right now. :/ But still, instructive, I've never done memory-hacking before.]

[I wonder if you might, someday, release the full thing?]

**Alucard** · 05-02-2009, 06:24 PM

Interesting, will play with that later. Thanks.

Edit: Works! Sweet!

Epythic, make sure to change comments and paths around to fit your version of ADOM.

**Epythic** · 05-02-2009, 07:04 PM

Originally Posted by Alucard

Interesting, will play with that later. Thanks.

Edit: Works! Sweet!

Epythic, make sure to change comments and paths around to fit your version of ADOM.

I did, of course, and ADOM starts fine.
I just don't get the starsign selection menu.

Execution never gets past line 154, this one:

Code:

    handle_sig(pid, waitv);

Heres the function:

Code:

void handle_sig(int pid, int status) {
  if(WIFEXITED(status)) {
    exit(0); // <---- this gets exectued
/*
  status == 0
  pid > 0
*/
  }

  else if(WIFSIGNALED(status)) {
    kill(pid, 9);
    exit(1);
  }
}

Now, how do I fix this? I have no idea :/
Commenting out the exit(0); line gives me the menu, but only after ADOM exits. Doh.

**Epythic** · 05-02-2009, 09:21 PM

Turns out, I uncommented the wrong starsign. No idea how that could happen.
Jaakkos helped me fix it, thanks

Somehow I feel stupid

**Siuol** · 05-06-2009, 12:05 AM

Would it be possible for somebody to explain how to add choosing star signs for novice users?

**gut** · 05-06-2009, 04:25 AM

Use AdomBot. It's basically the same thing to
my way of thinking.

**Siuol** · 05-10-2009, 05:41 PM

Sorry for the noob questions, but could you explain why?

**_Ln_** · 05-10-2009, 08:14 PM

Originally Posted by Siuol

Sorry for the noob questions, but could you explain why?

Well, what jaakkos posted replaces data in ADoM memory - that means it hacks it =) AdomBot does the same - replaces in memory what you need.

And concerning adding birth-month choosing: you take this fragment of code and change it:
1) if you use ADoM 1.1.1, make it in this way:
#define BIRTHSIGN_ADDR 0x0813EE03 // 1.1.1
//#define BIRTHSIGN_ADDR 0x0813AC63 // 1.0.0
otherwise don't change that part
2) in part

Code:

  if(!sage)
      //execl("/usr/games/adom-111-bin", "/usr/games/adom-111-bin", NULL);
      execl("/usr/games/adom-100-bin", "/usr/games/adom-100-bin", NULL);

    else
      //execl("/var/lib/adom/server/adom-sage", "/var/lib/adom/server/adom-sage", "-a", "/usr/games/adom-111-bin", "-s", "/var/lib/adom/server/adom-sage.so", NULL);
      execl("/var/lib/adom/server/adom-sage", "/var/lib/adom/server/adom-sage", "-a", "/usr/games/adom-100-bin", "-s", "/var/lib/adom/server/adom-sage.so", NULL);

delete commented execl's and change paths in left ones to where your ADoM executable file is and where your AdomSage files are.
3) compile this program to get executable and run it whenever you want to play
4) if you want to use AdomSage, add --enable-sage flag when you execute what you got
Hope this helps (of course, if you're not a Windows-user and can understand my instructions

) if I haven't missed anything..

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