KILL(II) 8/5/73 KILL(II)





KILL(II)                     8/5/73                      KILL(II)







NAME

     kill - send signal to a process



SYNOPSIS

     (kill = 37.; not in assembler)

     (process number in r0)

     sys kill; sig



     kill(pid, sig);



DESCRIPTION

     Kill sends the signal sig to the process  specified  by  the

     process  number  in  r0.   See  signal  (II)  for  a list of

     signals.



     The sending and  receiving  processes  must  have  the  same

     controlling typewriter, otherwise this call is restricted to

     the super-user.



SEE ALSO

     signal (II), kill (I)



DIAGNOSTICS

     The error bit (c-bit) is set if the process  does  not  have

     the  same  controlling typewriter and the user is not super-

     user, or if the process does not exist.



BUGS

     Equality between the controlling typewriters of the  sending

     and  receiving process is neither a necessary nor sufficient

     condition for allowing the sending of a signal.  The correct

     condition is equality of user IDs.
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