File: trap.c

package info (click to toggle)
9base 1%3A6-13
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 5,488 kB
  • sloc: ansic: 61,051; yacc: 1,991; asm: 1,621; cs: 1,150; perl: 965; makefile: 616; sh: 18; sed: 4
file content (37 lines) | stat: -rw-r--r-- 878 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
#include "rc.h"
#include "exec.h"
#include "fns.h"
#include "io.h"
extern char *Signame[];

void
dotrap(void)
{
	int i;
	struct var *trapreq;
	struct word *starval;
	starval = vlook("*")->val;
	while(ntrap) for(i = 0;i!=NSIG;i++) while(trap[i]){
		--trap[i];
		--ntrap;
		if(getpid()!=mypid) Exit(getstatus());
		trapreq = vlook(Signame[i]);
		if(trapreq->fn){
			start(trapreq->fn, trapreq->pc, (struct var *)0);
			runq->local = newvar(strdup("*"), runq->local);
			runq->local->val = copywords(starval, (struct word *)0);
			runq->local->changed = 1;
			runq->redir = runq->startredir = 0;
		}
		else if(i==SIGINT || i==SIGQUIT){
			/*
			 * run the stack down until we uncover the
			 * command reading loop.  Xreturn will exit
			 * if there is none (i.e. if this is not
			 * an interactive rc.)
			 */
			while(!runq->iflag) Xreturn();
		}
		else Exit(getstatus());
	}
}