killpg.c raw

   1  #include <signal.h>
   2  #include <errno.h>
   3  
   4  int killpg(pid_t pgid, int sig)
   5  {
   6  	if (pgid < 0) {
   7  		errno = EINVAL;
   8  		return -1;
   9  	}
  10  	return kill(-pgid, sig);
  11  }
  12