cansignal          85 kern/kern_sig.c int cansignal(struct proc *, struct pcred *, struct proc *, int);
cansignal         591 kern/kern_sig.c 		if (!cansignal(cp, pc, p, SCARG(uap, signum)))
cansignal         626 kern/kern_sig.c 			    p == cp || !cansignal(cp, pc, p, signum))
cansignal         645 kern/kern_sig.c 			    !cansignal(cp, pc, p, signum))