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Date:      Tue, 20 Oct 2020 17:44:23 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 250489] devel/opencvs: unportable basename(3) usage
Message-ID:  <bug-250489-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250489

            Bug ID: 250489
           Summary: devel/opencvs: unportable basename(3) usage
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: danfe@FreeBSD.org
          Reporter: naddy@FreeBSD.org
             Flags: maintainer-feedback?(danfe@FreeBSD.org)
          Assignee: danfe@FreeBSD.org

POSIX specifies for basename(3) and dirname(3) that they
(1) may modify the string pointed to by path, or
(2) may return a pointer to internal storage (and the returned pointer migh=
t be
invalidated or the storage might be overwritten by a subsequent call).

OpenBSD has chosen implementation type (1) and this assumption has leaked i=
nto
some software written on OpenBSD. By contrast, FreeBSD 12+ has chosen type =
(2).

OpenCVS is full of basename() and dirname() calls that assume that the argu=
ment
will not be written to, which runs directly counter to what FreeBSD does. I
have now cleaned up the OpenBSD usr.bin/cvs (=3D OpenCVS) code base:

https://github.com/openbsd/src/commit/431378d1a7a36c77c1b34ffa43b6933d2ecc9=
70a

This patch should also be applied to the FreeBSD devel/opencvs port.

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