From owner-freebsd-bugs@freebsd.org Fri Oct 26 11:07:49 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0C0B710DF907 for ; Fri, 26 Oct 2018 11:07:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 9D1DB71F82 for ; Fri, 26 Oct 2018 11:07:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 5F53010DF906; Fri, 26 Oct 2018 11:07:48 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4C24A10DF905 for ; Fri, 26 Oct 2018 11:07:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id CBA6971F7E for ; Fri, 26 Oct 2018 11:07:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 15A67135F for ; Fri, 26 Oct 2018 11:07:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w9QB7kPe042804 for ; Fri, 26 Oct 2018 11:07:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w9QB7kr0042803 for bugs@FreeBSD.org; Fri, 26 Oct 2018 11:07:46 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 232201] sh(1): Using unset variables in here-doc with set -u does not cause the script to exit Date: Fri, 26 Oct 2018 11:07:47 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jilles@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Oct 2018 11:07:49 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232201 Jilles Tjoelker changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open CC| |jilles@FreeBSD.org --- Comment #1 from Jilles Tjoelker --- Although dash is not necessarily a good reference (since it has various bugs and shortcuts of itself), I checked this against bash --posix and ksh93 and= the common behaviour seems to be that an expansion error in a here-document is treated as a redirection error (so the redirected command is not executed a= nd for some types of command the shell aborts). When I last changed here-document expansion in SVN r246288, I left the error and side effect behaviour unchanged from what it was to minimize the risk of breaking existing scripts. A related test case: sh -c 'd=3D/dev/null; : <"${d#$((a=3D1))}"; true <"${d#$((b=3D2))}"; /usr/b= in/true <"${d#$((c=3D3))}"; echo "a=3D$a b=3D$b c=3D$c"' Most shells seem to agree that this should output a=3D1 b=3D2 c=3D3. Bash (POSIX mode as well as default mode) has different behaviour between t= rue (keeps side effects) and /usr/bin/true (discards side effects). This seems incorrect. --=20 You are receiving this mail because: You are the assignee for the bug.=