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