From: "roland.illig at gmx dot de" <sourceware-bugzilla@sourceware.org>
To: bzip2-devel@sourceware.org
Subject: [Bug bzip2/28283] New: undefined behavior for isdigit and isspace
Date: Fri, 27 Aug 2021 17:31:37 +0000 [thread overview]
Message-ID: <bug-28283-11876@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=28283
Bug ID: 28283
Summary: undefined behavior for isdigit and isspace
Product: bzip2
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: bzip2
Assignee: nobody at sourceware dot org
Reporter: roland.illig at gmx dot de
CC: bzip2-devel at sourceware dot org
Target Milestone: ---
The functions from <ctype.h> take an int as parameter. The value of this
parameter must "either be representable as an unsigned char or be the value of
the macro EOF".
The functions addFlagsFromEnvVar and bzopen_or_bzdopen wrongly cast the
argument to Int32, the correct type is UChar. After a direct cast to Int32, the
argument may still be negative, which makes that cast wrong.
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next reply other threads:[~2021-08-27 17:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-27 17:31 roland.illig at gmx dot de [this message]
2022-12-27 12:34 ` [Bug bzip2/28283] " pmqs at outlook dot com
2022-12-27 17:24 ` mark at klomp dot org
2024-04-09 13:31 ` email at arsoftware dot net.br
2024-04-09 19:19 ` mark at klomp dot org
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