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Re: lib/47055: libc diagassert issues
The following reply was made to PR lib/47055; it has been noted by GNATS.
From: christos%zoulas.com@localhost (Christos Zoulas)
To: gnats-bugs%NetBSD.org@localhost, lib-bug-people%netbsd.org@localhost,
Subject: Re: lib/47055: libc diagassert issues
Date: Wed, 10 Oct 2012 18:45:29 -0400
On Oct 10, 7:45pm, dholland%NetBSD.org@localhost
-- Subject: lib/47055: libc diagassert issues
| There are two problems with libc diagassert:
| (1) it calls syslog() blindly, so if an assertion happens in a program
| that hasn't called openlog(), it ends up using uninitialized state in
| syslog.c. The observable effect of this seems to be to issue syslog
| messages with no hostname field; however, it could be (or become,
| without much notice) a good deal worse.
This is a bug. I am fixing and versioning syslog(). Syslog should be
thread-safe, and because of the static hostname (and the initialiazation
of it, it is not).
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