9. FAQ o Win API

Q> How to bang process (including system)? 
A> 
#include <windows.h> 
#include <stdio.h> 
#pragma hdrstop 

//fkill forces a kill - it will attempt to enable SeDebugPrivilege 
//before opening its process handles, allowing it to kill processes 
//running under builtin\system (LocalSystem, to the users out there). 

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

#define isBadHandle (h) ((h) == NULL || (h) == INVALID_HANDLE_VALUE) 
#define lenof (x) (sizeof (x) / sizeof ((x) [0])) 

const int MAXPID = 1024; 

int main (int argc, char *argv []) 
{ 
 int pidCount, i, errors; 
 char *p; 
 HANDLE hProcess; 
 static DWORD pid [MAXPID]; 

 //parse args, build PID list 
 errors = pidCount = 0; 

 for (i = 1; i <argc; i ++) 
 { 
  if (pidCount == lenof (pid)) { 
   errors ++; 
   break; 
  }

  pid [pidCount] = strtol (argv [i], &p, 0); 
  if (p == argv [i] || *p) 
   errors ++; 
  else 
   pidCount ++; 
 }

 if (errors || pidCount == 0) 
 { 
  puts ("Usage: fkill pid [...]"); 
  puts ("fkill tries to kill the processes specified by the PIDs. If the"); 
  puts ("user has debug privileges, fkill is able to kill system processes."); 
  puts ("PIDs may be decimal, octal (starts with 0), or hex (starts with 0x)."  
);
  return MAXPID + 1; 
 }

 //try to acquire SeDebugPrivilege 
 getDebugPriv ();//see faq above 

 errors = 0; 
 //for each PID: 
 for (i = 0; i <pidCount; i ++) 
 { 
  printf ("pid %lu:", pid [i]); 

  //open process 
  hProcess = OpenProcess (PROCESS_TERMINATE, FALSE, pid [i]); 
  if (isBadHandle (hProcess)) 
   printf ("OpenProcess () failed, err = %lu\n", GetLastError ()); 
  else 
  { 
   //kill process 
   if (! TerminateProcess (hProcess, (DWORD)-1)) 
    printf ("TerminateProcess () failed, err = %lu\n", GetLastError ()); 
   else 
    puts ("killed."); 

   //close handle 
   CloseHandle (hProcess); 
  }
 }

 return 0; 
}