DESCRIPTION
  pfind takes a  pid as its argument and returns a pointer to the 
.Vt proc structure whose PID is specified in the argument only if the  pid is on the  allproc list.   zpfind takes a  pid as its argument. If  zpfind finds a process whose PID is equal to that of argument and is a zombie process, meaning that it must reside on the  zombproc list,  zpfind returns a pointer to that 
.Vt proc structure. 
 Both  pfind and  zpfind lock the 
.Vt proc structure that is returned using  PROC_LOCK "p".  
RETURN VALUES
  pfind and  zpfind return a pointer to a 
.Vt proc structure on success and a  NULL on failure.   
SEE ALSO
 pgfind(9)  
AUTHORS