1 #include "rc.h"
2 #include "exec.h"
3 #include "fns.h"
4 #include "io.h"
5 extern char *Signame[];
6 
7 void
8 dotrap(void)
9 {
10 	int i;
11 	struct var *trapreq;
12 	struct word *starval;
13 	starval = vlook("*")->val;
14 	while(ntrap) for(i = 0;i!=NSIG;i++) while(trap[i]){
15 		--trap[i];
16 		--ntrap;
17 		if(getpid()!=mypid) Exit(getstatus());
18 		trapreq = vlook(Signame[i]);
19 		if(trapreq->fn){
20 			start(trapreq->fn, trapreq->pc, (struct var *)0);
21 			runq->local = newvar(strdup("*"), runq->local);
22 			runq->local->val = copywords(starval, (struct word *)0);
23 			runq->local->changed = 1;
24 			runq->redir = runq->startredir = 0;
25 		}
26 		else if(i==SIGINT || i==SIGQUIT){
27 			/*
28 			 * run the stack down until we uncover the
29 			 * command reading loop.  Xreturn will exit
30 			 * if there is none (i.e. if this is not
31 			 * an interactive rc.)
32 			 */
33 			while(!runq->iflag) Xreturn();
34 		}
35 		else Exit(getstatus());
36 	}
37 }