[From nobody Sat May 30 13:05:06 2026 Received: (at submit) by bugs.debian.org; 3 Jun 2024 01:41:05 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.6-bugs.debian.org_2005_01_02 (2021-04-09) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-11.9 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,FOURLA,HAS_PACKAGE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 12; hammy, 150; neutral, 170; spammy, 0. spammytokens: hammytokens:0.000-+--trixie, 0.000-+--cutf8, 0.000-+--CUTF8, 0.000-+--c.utf-8, 0.000-+--UD:C.UTF-8 Return-path: <vincent@vinc17.net> Received: from joooj.vinc17.net ([155.133.131.76]:60264) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.94.2) (envelope-from <vincent@vinc17.net>) id 1sDwh5-009C4K-SP for submit@bugs.debian.org; Mon, 03 Jun 2024 01:41:05 +0000 Received: from smtp-qaa.vinc17.net (2a02-8428-1b1d-4d01-96a9-491d-7b48-ba31.rev.sfr.net [IPv6:2a02:8428:1b1d:4d01:96a9:491d:7b48:ba31]) by joooj.vinc17.net (Postfix) with ESMTPSA id BEAF5323; Mon, 3 Jun 2024 03:40:58 +0200 (CEST) Received: by qaa.vinc17.org (Postfix, from userid 1000) id 8DF69CA00ED; Mon, 03 Jun 2024 03:40:58 +0200 (CEST) Date: Mon, 3 Jun 2024 03:40:58 +0200 From: Vincent Lefevre <vincent@vinc17.net> To: Debian Bug Tracking System <submit@bugs.debian.org> Subject: lynx: does not discard output from mailcap test Message-ID: <20240603014058.GA435600@qaa.vinc17.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Reportbug-Version: 13.0.1 X-Mailer-Info: https://www.vinc17.net/mutt/ User-Agent: Mutt/2.2.13+76 (1f3da810) vl-167818 (2024-04-20) Delivered-To: submit@bugs.debian.org Package: lynx Version: 2.9.2-1 Severity: important lynx does not discard output from mailcap test, so that "lynx -dump" generates incorrect output. With mailcap 3.71: $ lynx -dump /dev/null /bin/atril /usr/bin/emacs /usr/bin/emacs /bin/gimp-2.10 /bin/baobab /bin/eog /bin/evince /bin/inkscape /bin/wireshark because /etc/mailcap now has lines like application/pdf; atril %s; test=command -v atril && test -n "$DISPLAY" where "command -v atril" outputs "/bin/atril". I can see from strace output that lynx executes 434913 execve("/bin/sh", ["sh", "-c", "--", "command -v atril && test -n \"$DISPLAY\""], 0x55b606914990 /* 137 vars */ <unfinished ...> and so on. As a comparison, run-mailcap discards stdout and stderr: if ($match =~ m/;\s*test=(.*?)\s*($|;)/) { my $test; print STDERR " - running test: $1 " if $debug; $test = system "$1 >/dev/null 2>&1"; -- System Information: Debian Release: trixie/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'proposed-updates-debug'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 6.7.12-amd64 (SMP w/16 CPU threads; PREEMPT) Kernel taint flags: TAINT_WARN Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages lynx depends on: ii libbrotli1 1.1.0-2+b3 ii libbsd0 0.12.2-1 ii libbz2-1.0 1.0.8-5.1 ii libc6 2.38-12 ii libgnutls30t64 3.8.5-4 ii libidn2-0 2.3.7-2 ii libncursesw6 6.5-2 ii libtinfo6 6.5-2 ii lynx-common 2.9.2-1 ii zlib1g 1:1.3.dfsg-3.1 Versions of packages lynx recommends: ii mailcap 3.71 lynx suggests no packages. -- no debconf information -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) ]