app-misc/mc: improve iso9660 error detection, bug #533214

Reported-by: Łukasz Stelmach
Bug: https://bugs.gentoo.org/533214
Package-Manager: Portage-2.3.69, Repoman-2.3.16
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

3 files changed, 225 insertions, 0 deletions

diff --git a/app-misc/mc/files/mc-4.8.23-3933-iso9660-1.patch b/app-misc/mc/files/mc-4.8.23-3933-iso9660-1.patch
new file mode 100644
index 000000000000..be08e68b296c
--- /dev/null
+++ b/app-misc/mc/files/mc-4.8.23-3933-iso9660-1.patch
@@ -0,0 +1,85 @@
+From afdc9719f3e37921b621046f01f23fe6b705f059 Mon Sep 17 00:00:00 2001
+From: Andrew Borodin <aborodin@vmail.ru>
+Date: Sun, 7 Jul 2019 14:44:10 +0300
+Subject: [PATCH 1/2] Ticket #3933: report iso9660  listing errors.
+
+Variation 1:
+
+Steps to reproduce:
+
+    * create empty .iso file (touch foo.iso)
+    * run 'mc' and press enter on empty .iso
+
+Expected result: some error about invalid file format (sililar to what
+F3 view would yield).
+Actual result: mc elters a file as if it would be empty valid file.
+
+Variation 2:
+Steps to reproduce:
+
+    * pick valid .iso file
+    * deinstall all helper tools that handle .sio (isoinfo, xorriso, etc.)
+    * run 'mc' and press enter on empty .iso
+
+Expected result: some error about invalid file format (sililar to what
+F3 view would yield)
+Actual result: mc enters a file as if it would be empty valid file
+
+Variation 2 is especially confusing for users as it does not hint them
+that they should install a tool to get it working. They just observe
+silently broken behaviour.
+
+Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
+---
+ src/vfs/extfs/helpers/iso9660.in | 14 +++++++++++---
+ 1 file changed, 11 insertions(+), 3 deletions(-)
+
+diff --git a/src/vfs/extfs/helpers/iso9660.in b/src/vfs/extfs/helpers/iso9660.in
+index 8c2240e8e..76273522e 100644
+--- a/src/vfs/extfs/helpers/iso9660.in
++++ b/src/vfs/extfs/helpers/iso9660.in
+@@ -93,6 +93,8 @@ xorriso_rm() {
+ 
+ # tested to comply with isoinfo 2.0's output
+ test_iso () {
++    which isoinfo 2>/dev/null || (echo "isoinfo not found" >&2;  return 1)
++
+     CHARSET=$(locale charmap 2>/dev/null)
+     if test -z "$CHARSET"; then
+         CHARSET=$(locale 2>/dev/null | @GREP@ LC_CTYPE | sed -n -e 's/.*\.\(.*\)"$/\1/p')
+@@ -119,6 +121,8 @@ test_iso () {
+ }
+ 
+ mcisofs_list () {
++    local lsl r
++
+     # left as a reminder to implement compressed image support =)
+     case "$1" in
+       *.lz)  MYCAT="lzip -dc";;
+@@ -133,7 +137,11 @@ mcisofs_list () {
+       *)     MYCAT="cat";;
+     esac
+ 
+-    $ISOINFO -l -i "$1" 2>/dev/null | @AWK@ -v SEMICOLON=$SEMICOLON '
++    lsl=$($ISOINFO -l -i "$1"  2>/dev/null)
++    r=$?
++    test $r -gt 0 && return $r
++
++    echo "$lsl" | @AWK@ -v SEMICOLON=$SEMICOLON '
+ BEGIN {
+   dir="";
+   # Pattern to match 8 first fields.
+@@ -183,8 +191,8 @@ shift
+ case "$cmd" in
+   list)
+     xorriso_list "$@" || {
+-        test_iso "$@";
+-        mcisofs_list "$@";
++        test_iso "$@" || exit 1
++        mcisofs_list "$@" || exit 1
+     }
+     exit 0
+     ;;
+-- 
+2.22.0
+
diff --git a/app-misc/mc/files/mc-4.8.23-3933-iso9660-2.patch b/app-misc/mc/files/mc-4.8.23-3933-iso9660-2.patch
new file mode 100644
index 000000000000..173def62eb0b
--- /dev/null
+++ b/app-misc/mc/files/mc-4.8.23-3933-iso9660-2.patch
@@ -0,0 +1,29 @@
+From c1b6d29b95a373108e8d03ac629dcb03fcec854c Mon Sep 17 00:00:00 2001
+From: Andrew Borodin <aborodin@vmail.ru>
+Date: Sun, 7 Jul 2019 15:51:28 +0300
+Subject: [PATCH 2/2] iso9660: report errors in copyout in case of isoinfo
+ usage.
+
+Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
+---
+ src/vfs/extfs/helpers/iso9660.in | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/vfs/extfs/helpers/iso9660.in b/src/vfs/extfs/helpers/iso9660.in
+index 76273522e..f9c6e50ef 100644
+--- a/src/vfs/extfs/helpers/iso9660.in
++++ b/src/vfs/extfs/helpers/iso9660.in
+@@ -222,8 +222,8 @@ case "$cmd" in
+     ;;
+   copyout)
+     xorriso_copyout "$@" || {
+-        test_iso "$@";
+-        mcisofs_copyout "$@";
++        test_iso "$@" || exit 1
++        mcisofs_copyout "$@" || exit 1
+     }
+     exit 0
+     ;;
+-- 
+2.22.0
+
diff --git a/app-misc/mc/mc-4.8.23-r1.ebuild b/app-misc/mc/mc-4.8.23-r1.ebuild
new file mode 100644
index 000000000000..322ccb31aed9
--- /dev/null
+++ b/app-misc/mc/mc-4.8.23-r1.ebuild
@@ -0,0 +1,111 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic
+
+MY_P=${P/_/-}
+
+DESCRIPTION="GNU Midnight Commander is a text based file manager"
+HOMEPAGE="https://www.midnight-commander.org"
+SRC_URI="http://ftp.midnight-commander.org/${MY_P}.tar.xz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x86-solaris"
+IUSE="+edit gpm nls samba sftp +slang spell test unicode X +xdg"
+
+REQUIRED_USE="spell? ( edit )"
+
+RDEPEND=">=dev-libs/glib-2.26.0:2
+	gpm? ( sys-libs/gpm )
+	kernel_linux? ( sys-fs/e2fsprogs )
+	samba? ( net-fs/samba )
+	sftp? ( net-libs/libssh2 )
+	slang? ( >=sys-libs/slang-2 )
+	!slang? ( sys-libs/ncurses:0=[unicode?] )
+	spell? ( app-text/aspell )
+	X? ( x11-libs/libX11
+		x11-libs/libICE
+		x11-libs/libXau
+		x11-libs/libXdmcp
+		x11-libs/libSM )"
+DEPEND="${RDEPEND}
+	app-arch/xz-utils
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	test? ( dev-libs/check )
+	"
+
+S=${WORKDIR}/${MY_P}
+
+PATCHES=(
+	"${FILESDIR}"/${P}-3933-iso9660-1.patch
+	"${FILESDIR}"/${P}-3933-iso9660-2.patch
+)
+
+pkg_pretend() {
+	if use slang && use unicode ; then
+		ewarn "\"unicode\" USE flag only takes effect when the \"slang\" USE flag is disabled."
+	fi
+}
+
+src_configure() {
+	[[ ${CHOST} == *-solaris* ]] && append-ldflags "-lnsl -lsocket"
+
+	local myeconfargs=(
+		--disable-dependency-tracking
+		--disable-silent-rules
+		--enable-charset
+		--enable-vfs
+		--with-homedir=$(usex xdg 'XDG' '.mc')
+		--with-screen=$(usex slang 'slang' "ncurses$(usex unicode 'w' '')")
+		$(use_enable kernel_linux vfs-undelfs)
+		# Today mclib does not expose any headers and is linked to
+		# single 'mc' binary. Thus there is no advantage of having
+		# a library. Let's avoid shared library altogether
+		# as it also conflicts with sci-libs/mc: bug #685938
+		--disable-mclib
+		$(use_enable nls)
+		$(use_enable samba vfs-smb)
+		$(use_enable sftp vfs-sftp)
+		$(use_enable spell aspell)
+		$(use_enable test tests)
+		$(use_with gpm gpm-mouse)
+		$(use_with X x)
+		$(use_with edit internal-edit)
+	)
+	econf "${myeconfargs[@]}"
+}
+
+src_test() {
+	# CK_FORK=no to avoid using fork() in check library
+	# as mc mocks fork() itself: bug #644462.
+	#
+	# VERBOSE=1 to make test failures contain detailed
+	# information.
+	CK_FORK=no emake check VERBOSE=1
+}
+
+src_install() {
+	emake DESTDIR="${D}" install
+	dodoc AUTHORS README NEWS
+
+	# fix bug #334383
+	if use kernel_linux && [[ ${EUID} == 0 ]] ; then
+		fowners root:tty /usr/libexec/mc/cons.saver
+		fperms g+s /usr/libexec/mc/cons.saver
+	fi
+
+	if ! use xdg ; then
+		sed 's@MC_XDG_OPEN="xdg-open"@MC_XDG_OPEN="/bin/false"@' \
+			-i "${ED%/}"/usr/libexec/mc/ext.d/*.sh || die
+	fi
+}
+
+pkg_postinst() {
+	elog "To enable exiting to latest working directory,"
+	elog "put this into your ~/.bashrc:"
+	elog ". ${EPREFIX}/usr/libexec/mc/mc.sh"
+}