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# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id: 4237c22f2915e0ac77411b30fe34dd64bb38110c $
EAPI=5
inherit autotools eutils flag-o-matic pam toolchain-funcs user
DESCRIPTION="Full-screen window manager that multiplexes physical terminals between several processes"
HOMEPAGE="https://www.gnu.org/software/screen/"
SRC_URI="mirror://gnu/${PN}/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~sparc-fbsd ~x86-fbsd ~hppa-hpux ~amd64-linux ~arm-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
IUSE="debug multiuser nethack pam selinux +tmpfiles"
CDEPEND="
>=sys-libs/ncurses-5.2:0=
pam? ( virtual/pam )"
RDEPEND="${CDEPEND}
selinux? ( sec-policy/selinux-screen )"
DEPEND="${CDEPEND}
sys-apps/texinfo"
# Patches:
# - Don't use utempter even if it is found on the system.
# - Bug 559394.
PATCHES=(
"${FILESDIR}"/${PN}-4.3.0-no-utempter.patch
"${FILESDIR}"/${PN}-4.3.1-ansi.c.patch
)
pkg_setup() {
# Make sure utmp group exists, as it's used later on.
enewgroup utmp 406
}
src_prepare() {
# Apply patches.
epatch "${PATCHES[@]}"
# sched.h is a system header and causes problems with some C libraries
mv sched.h _sched.h || die
sed -i '/include/ s:sched.h:_sched.h:' screen.h || die
# Fix manpage.
sed -i \
-e "s:/usr/local/etc/screenrc:${EPREFIX}/etc/screenrc:g" \
-e "s:/usr/local/screens:${EPREFIX}/var/run/screen:g" \
-e "s:/local/etc/screenrc:${EPREFIX}/etc/screenrc:g" \
-e "s:/etc/utmp:${EPREFIX}/var/run/utmp:g" \
-e "s:/local/screens/S-:${EPREFIX}/var/run/screen/S-:g" \
doc/screen.1 \
|| die
if [[ ${CHOST} == *-darwin* ]] ; then
sed -i -e '/^#define UTMPOK/s/define/undef/' acconfig.h || die
fi
# reconfigure
eautoreconf
}
src_configure() {
append-cppflags "-DMAXWIN=${MAX_SCREEN_WINDOWS:-100}"
if [[ ${CHOST} == *-solaris* ]] ; then
# https://lists.gnu.org/archive/html/screen-devel/2014-04/msg00095.html
append-cppflags -D_XOPEN_SOURCE \
-D_XOPEN_SOURCE_EXTENDED=1 \
-D__EXTENSIONS__
append-libs -lsocket -lnsl
fi
use nethack || append-cppflags "-DNONETHACK"
use debug && append-cppflags "-DDEBUG"
econf \
--with-socket-dir="${EPREFIX}/var/run/screen" \
--with-sys-screenrc="${EPREFIX}/etc/screenrc" \
--with-pty-mode=0620 \
--with-pty-group=5 \
--enable-rxvt_osc \
--enable-telnet \
--enable-colors256 \
$(use_enable pam)
}
src_compile() {
LC_ALL=POSIX emake comm.h term.h
emake osdef.h
emake -C doc screen.info
default
}
src_install() {
local tmpfiles_perms="0775" tmpfiles_group="utmp"
dobin screen
#
# In screen.c, the required directory mode, n, is defined as:
# n = (eff_uid == 0 && (real_uid || (st.st_mode & 0775) != 0775)) ? 0755 : (eff_gid == (int)st.st_gid && eff_gid != real_gid) ? 0775 : 0777;
# ... where st is the result of stat(SockDir, &st).
#
# ( eff_gid == (int)st.st_gid ) -> /var/run/screen does not have group:utmp, or /usr/bin/screen is not setgid;
# ( eff_gid != real_gid ) -> /usr/bin/screen is not setgid, or user has utmp as their primary group.
#
# ... so it appears that /usr/bin/screen is being installed with incorrect permissions.
#
if use multiuser; then
use prefix || fperms 4755 /usr/bin/screen
tmpfiles_perms="0755"
tmpfiles_group="root"
else
use prefix || fowners root:utmp /usr/bin/screen
fperms 2755 /usr/bin/screen
fi
if use tmpfiles; then
dodir /etc/tmpfiles.d
echo "d /var/run/screen ${tmpfiles_perms} root ${tmpfiles_group}" \
> "${ED}"/etc/tmpfiles.d/screen.conf
fi
insinto /usr/share/screen
doins terminfo/{screencap,screeninfo.src}
insinto /usr/share/screen/utf8encodings
doins utf8encodings/??
insinto /etc
doins "${FILESDIR}"/screenrc
pamd_mimic_system screen auth
dodoc \
README ChangeLog INSTALL TODO NEWS* patchlevel.h \
doc/{FAQ,README.DOTSCREEN,fdpat.ps,window_to_display.ps}
doman doc/screen.1
doinfo doc/screen.info
}
pkg_postinst() {
local rundir="${EROOT%/}/var/run/screen"
local tmpfiles_perms="0775" tmpfiles_group="utmp"
if use multiuser; then
tmpfiles_perms="0755"
if ! use prefix; then
tmpfiles_group="root"
fi
# Pre-merge permissions are being lost?!
chmod 4751 /usr/bin/screen
else
chmod 2751 /usr/bin/screen
fi
# Add /var/run/screen in case it doesn't exist yet. This should solve
# problems like bug #508634 where tmpfiles.d isn't in effect.
if [[ ! -d "${rundir}" || "$( stat -Lc '%a' "${rundir}" )" != "${tmpfiles_perms}" ]] ; then
mkdir -p "${rundir}"
chmod "${tmpfiles_perms}" "${rundir}"
use prefix || chgrp ${tmpfiles_group} "${rundir}"
fi
if [[ -z ${REPLACING_VERSIONS} ]]
then
elog "Some dangerous key bindings have been removed or changed to more safe values."
elog "We enable some xterm hacks in our default screenrc, which might break some"
elog "applications. Please check /etc/screenrc for information on these changes."
fi
if use prefix; then
ewarn "In order to allow screen to work correctly, please execute:"
ewarn " chown root:utmp ${EPREFIX}/usr/bin/screen"
if use multiuser; then
ewarn " chmod 4755 ${EPREFIX}/usr/bin/screen"
else
ewarn " chmod 2755 ${EPREFIX}/usr/bin/screen"
fi
ewarn " chown root:utmp ${rundir}"
ewarn "... as a privileged user"
fi
}
# vi: set diffopt=iwhite,filler:
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