sys-libs/glibc/files/eblits/pkg_preinst.eblit

# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-libs/glibc/files/eblits/pkg_preinst.eblit,v 1.12 2014/06/14 23:29:04 vapier Exp $

# Simple test to make sure our new glibc isnt completely broken.
# Make sure we don't test with statically built binaries since
# they will fail.  Also, skip if this glibc is a cross compiler.
glibc_sanity_check() {
	cd / #228809

	# We enter ${D} so to avoid trouble if the path contains
	# special characters; for instance if the path contains the
	# colon character (:), then the linker will try to split it
	# and look for the libraries in an unexpected place. This can
	# lead to unsafe code execution if the generated prefix is
	# within a world-writable directory.
	# (e.g. /var/tmp/portage:${HOSTNAME})
	pushd "${ED}"/$(get_libdir) >/dev/null

	local x striptest
	for x in date env ls true uname ; do
		x=$(type -p ${x})
		[[ -z ${x} || ${x} != ${EPREFIX}/* ]] && continue
		striptest=$(LC_ALL="C" file -L ${x} 2>/dev/null) || continue
		[[ ${striptest} == *"statically linked"* ]] && continue
		./ld-*.so --library-path . ${x} > /dev/null \
			|| die "simple run test (${x}) failed"
	done

	popd >/dev/null
}

eblit-glibc-pkg_preinst() {
	# nothing to do if just installing headers
	just_headers && return

	# prepare /etc/ld.so.conf.d/ for files
	mkdir -p "${EROOT}"/etc/ld.so.conf.d

	# Default /etc/hosts.conf:multi to on for systems with small dbs.
	if [[ $(wc -l < "${EROOT}"/etc/hosts) -lt 1000 ]] ; then
		sed -i '/^multi off/s:off:on:' "${ED}"/etc/host.conf
		elog "Defaulting /etc/host.conf:multi to on"
	fi

	[[ ${ROOT} != "/" ]] && return 0
	[[ -d ${D}/$(get_libdir) ]] || return 0
	glibc_sanity_check

	# Make sure devpts is mounted correctly for use w/out setuid pt_chown.
	if in_iuse suid && ! use suid ; then
		if awk '$3 == "devpts" && $4 ~ /[, ]gid=5[, ]/ { exit 1 }' /proc/mounts ; then
			eerror "In order to use glibc with USE=-suid, you must make sure that"
			eerror "you have devpts mounted at /dev/pts with the gid=5 option."
			eerror "Openrc should do this for you, so you should check /etc/fstab"
			eerror "and make sure you do not have any invalid settings there."
			# Do not die on older kernels as devpts did not export these settings #489520.
			if version_is_at_least 2.6.25 $(uname -r) ; then
				die "mount & fix your /dev/pts settings"
			fi
		fi
	fi
}