X-pop3-spooler:	POP3MAIL 2.1.0 b 4 980420 -bs-
Date:	Mon, 5 Oct 1998 21:28:16 +0200 (CEST)
From:	Bernhard Rosenkraenzer <bero AT microsoft DOT sucks DOT eu DOT org>
X-Sender:	bero AT k6 DOT bero
To:	egcs-bugs AT cygnus DOT com, pgcc-list AT Desk DOT nl, bug-gcc AT prep DOT ai DOT mit DOT edu
cc:	lundberg AT vr DOT net
Subject:	Bug in gcc 2.7.2.3, 2.8.1, egcs and pgcc
Message-ID:	<Pine.Bero.4.05.9810052055110.21568-300000@k6.bero>
MIME-Version:	1.0
Sender:	Marc Lehmann <pcg AT goof DOT com>
Lines:	111

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I believe I have found a bug present in all gcc 2.7.2.3, gcc 2.8.1, egcs 1.1,
pgcc 1.1, egcs and pgcc 19980921 - gcc seems to assume a result of an if
command is false a bit too early.

The sample file is taken from BeroFTPD 1.1.12 (old) and 1.1.13 (new).

While both procedures do exactly the same, the old one fails, the new one
works (by splitting an if in two parts, using a variable).
The problem with the old one is that, for example, if "noretrieve core" is
specified in ftpaccess [-> entry->arg[0] == "core"], and a user tries to
get a core file somewhere [-> lbasename(realname) == "core" ], he is
permitted to do so (return 0 rather than reply... return 1).

This happens on an ix86 running Linux; it's not an optimization bug (happens
with -O0 as only option, as well).

LLaP
bero

-- 
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