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22983: exit could loop for ever

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This commit is contained in:
Peter Stephenson 2006-11-08 17:43:31 +00:00
parent 96f525f468
commit aa2ae64dff
3 changed files with 23 additions and 0 deletions
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11
Src/builtin.c
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@ -4391,6 +4391,10 @@ zexit(int val, int from_where)
{
static int in_exit;
/* Don't do anything recursively: see below */
if (in_exit == -1)
return;
if (isset(MONITOR) && !stopmsg && from_where != 1) {
scanjobs(); /* check if jobs need printing */
if (isset(CHECKJOBS))
@ -4400,9 +4404,16 @@ zexit(int val, int from_where)
return;
}
}
/* Positive in_exit means we have been here before */
if (from_where == 2 || (in_exit++ && from_where))
return;
/*
* We're now committed to exiting. Set in_exit to -1 to
* indicate we shouldn't do any recursive processing.
*/
in_exit = -1;
if (isset(MONITOR)) {
/* send SIGHUP to any jobs left running */
killrunjobs(from_where == 1);