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- Newsgroups: comp.unix.sysv386
- Path: sparky!uunet!mcsun!sunic!ugle.unit.no!ugle.unit.no!staale
- From: staale@kvatro.no (Staale Deraas)
- Subject: Signal problems in SCO to ISC port
- Message-ID: <STAALE.92Sep3094241@grim.kvatro.no>
- Sender: news@ugle.unit.no (NetNews Administrator)
- Organization: Kvatro A/S, Trondheim, Norway
- Date: 3 Sep 92 09:42:41
- Lines: 16
-
-
- We are trying to port a program from SCO to ISC that uses signals. On assignment of signal
- catching handlers, we order a blockmask to be used on signal delivery. Our observations
- on ISC are as follows:
- 1) Blockmask supplied to sigaction systemcall is accepted.
- 2) A doublecheck reading blockmask after setting it (ref. 1) uncovers that the block bit
- for the specified signal is inverted according to specified blockmask.
- 3) We set up several signal catchers in this way.
- 4) On signal catching, the blockmask is different from all ordered blockmasks (ref. 1),
- but only for those block bits that we have ordered signal catchers for.
-
- Is this an undocumented feature, or does there exist a patch to make SCO and ISC behave
- in the same way?
-
- Our current versions of ISC is 3.2.2. and SCO 3.2.2.
- Please e-mail to deraas@kvatro.no
-