Date: Tue, 15 Dec 1998 15:27:52 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: "John W. DeBoskey" <jwd@unx.sas.com> Cc: freebsd-current@FreeBSD.ORG Subject: Re: Inetd 1.42 now blocking all signals in child by default Message-ID: <199812152327.PAA60898@apollo.backplane.com> References: <199812152245.RAA21523@bb01f39.unx.sas.com>
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:Hi,
:
: Well, the good news is I haven't made inetd fail... The bad news
:is that by default the SIGCHLD, SIGHUP and, SIGALRM signals are now
:being blocked when the fork()/exec() calls are made.
:
: So... The child process does not receive these signals by default
:anymore. This is major behavior modification and definitely causes
:some very interesting side effects... :-) Love them Zombies!
:
: We still need to unblock the signals in the child process after
:the fork... The following should do the trick:
:
:--- inetd.c.orig Mon Dec 14 02:07:34 1998
:+++ inetd.c Tue Dec 15 17:20:02 1998
:@@ -555,6 +555,7 @@
: /* sigsetmask(0L); */
: if (pid == 0) {
: if (dofork) {
:+ sigsetmask(0L);
: if (debug)
: warnx("+ closing from %d", maxsock);
: for (tmpint = maxsock; tmpint > 2; tmpint--)
:
: Hey! As always comments, critiques, and hints are most welcome...
:
:Thanks!
:John
Yup. Commited... though I'm unblocking just before the exec call.
I think it amounts to the same thing.
-Matt
Matthew Dillon Engineering, HiWay Technologies, Inc. & BEST Internet
Communications & God knows what else.
<dillon@backplane.com> (Please include original email in any response)
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