Updated to latest sudo from portage.

app-admin/sudo/sudo-1.7.4_p4.ebuild

+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/app-admin/sudo/sudo-1.7.4_p4.ebuild,v 1.6 2010/10/24 15:20:02 armin76 Exp $
+
+inherit eutils pam
+
+MY_P=${P/_/}
+MY_P=${MY_P/beta/b}
+
+case "${P}" in
+        *_beta* | *_rc*)
+                uri_prefix=beta/
+                ;;
+        *)
+                uri_prefix=""
+                ;;
+esac
+
+DESCRIPTION="Allows users or groups to run commands as other users"
+HOMEPAGE="http://www.sudo.ws/"
+SRC_URI="http://www.sudo.ws/sudo/dist/${uri_prefix}${MY_P}.tar.gz
+        ftp://ftp.sudo.ws/pub/sudo/${uri_prefix}${MY_P}.tar.gz"
+
+# Basic license is ISC-style as-is, some files are released under
+# 3-clause BSD license
+LICENSE="as-is BSD"
+
+SLOT="0"
+KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ~ppc64 s390 sh sparc x86 ~sparc-fbsd ~x86-fbsd"
+IUSE="pam skey offensive ldap selinux"
+
+DEPEND="pam? ( virtual/pam )
+        ldap? (
+                >=net-nds/openldap-2.1.30-r1
+                dev-libs/cyrus-sasl
+        )
+        !pam? ( skey? ( >=sys-auth/skey-1.1.5-r1 ) )
+        app-editors/gentoo-editor
+        virtual/editor
+        virtual/mta"
+RDEPEND="selinux? ( sec-policy/selinux-sudo )
+        ldap? ( dev-lang/perl )
+        pam? ( sys-auth/pambase )
+        ${DEPEND}"
+DEPEND="${DEPEND}
+        sys-devel/bison"
+
+S=${WORKDIR}/${MY_P}
+
+pkg_setup() {
+        if use pam && use skey; then
+                ewarn "You cannot enable both S/KEY and PAM at the same time, PAM will"
+                ewarn "be used then."
+        fi
+}
+
+src_unpack() {
+        unpack ${A}; cd "${S}"
+
+        # compatability fix.
+        epatch "${FILESDIR}"/${PN}-skeychallengeargs.diff
+
+        # additional variables to disallow, should user disable env_reset.
+
+        # NOTE: this is not a supported mode of operation, these variables
+        #       are added to the blacklist as a convenience to administrators
+        #       who fail to heed the warnings of allowing untrusted users
+        #       to access sudo.
+        #
+        #       there is *no possible way* to foresee all attack vectors in
+        #       all possible applications that could potentially be used via
+        #       sudo, these settings will just delay the inevitable.
+        #
+        #       that said, I will accept suggestions for variables that can
+        #       be misused in _common_ interpreters or libraries, such as
+        #       perl, bash, python, ruby, etc., in the hope of dissuading
+        #       a casual attacker.
+
+        # XXX: perl should be using suid_perl.
+        # XXX: users can remove/add more via env_delete and env_check.
+        # XXX: <?> = probably safe enough for most circumstances.
+
+        einfo "Blacklisting common variables (env_delete)..."
+                sudo_bad_var() {
+                        local target='env.c' marker='\*initial_badenv_table\[\]'
+
+                        ebegin "        $1"
+                        sed -i 's#\(^.*'${marker}'.*$\)#\1\n\t"'${1}'",#' "${S}"/${target}
+                        eend $?
+                }
+
+                sudo_bad_var 'PERLIO_DEBUG'   # perl, write debug to file.
+                sudo_bad_var 'FPATH'          # ksh, search path for functions.
+                sudo_bad_var 'NULLCMD'        # zsh, command on null-redir. <?>
+                sudo_bad_var 'READNULLCMD'    # zsh, command on null-redir. <?>
+                sudo_bad_var 'GLOBIGNORE'     # bash, glob paterns to ignore. <?>
+                sudo_bad_var 'PYTHONHOME'     # python, module search path.
+                sudo_bad_var 'PYTHONPATH'     # python, search path.
+                sudo_bad_var 'PYTHONINSPECT'  # python, allow inspection.
+                sudo_bad_var 'RUBYLIB'        # ruby, lib load path.
+                sudo_bad_var 'RUBYOPT'        # ruby, cl options.
+                sudo_bad_var 'ZDOTDIR'        # zsh, path to search for dotfiles.
+        einfo "...done."
+
+        # prevent binaries from being stripped.
+        sed -i 's/\($(INSTALL).*\) -s \(.*[(sudo|visudo)]\)/\1 \2/g' Makefile.in
+}
+
+src_compile() {
+        local line ROOTPATH
+
+        # FIXME: secure_path is a compile time setting. using ROOTPATH
+        # is not perfect, env-update may invalidate this, but until it
+        # is available as a sudoers setting this will have to do.
+        einfo "Setting secure_path..."
+
+                # why not use grep? variable might be expanded from other variables
+                # declared in that file. cannot just source the file, would override
+                # any variables already set.
+                eval `PS4= bash -x /etc/profile.env 2>&1 | \
+                        while read line; do
+                                case $line in
+                                        ROOTPATH=*) echo $line; break;;
+                                        *) continue;;
+                                esac
+                        done`  && einfo "       Found ROOTPATH..." || \
+                                ewarn " Failed to find ROOTPATH, please report this."
+
+                # remove duplicate path entries from $1
+                cleanpath() {
+                        local i=1 x n IFS=:
+                        local -a paths; paths=($1)
+
+                        for ((n=${#paths[*]}-1;i<=n;i++)); do
+                                for ((x=0;x<i;x++)); do
+                                        test "${paths[i]}" == "${paths[x]}" && {
+                                                einfo " Duplicate entry ${paths[i]} removed..." 1>&2
+                                                unset paths[i]; continue 2; }
+                                done; # einfo " Adding ${paths[i]}..." 1>&2
+                        done; echo "${paths[*]}"
+                }
+
+                ROOTPATH=$(cleanpath /bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin${ROOTPATH:+:${ROOTPATH}})
+
+                # strip gcc path (bug #136027)
+                rmpath() {
+                        declare e newpath oldpath=${!1} PATHvar=$1 thisp IFS=:
+                        shift
+                        for thisp in $oldpath; do
+                                for e; do [[ $thisp == $e ]] && continue 2; done
+                                newpath=$newpath:$thisp
+                        done
+                        eval $PATHvar='${newpath#:}'
+                }
+
+                rmpath ROOTPATH '*/gcc-bin/*'
+
+        einfo "...done."
+
+        if use pam; then
+                myconf="--with-pam --without-skey"
+        elif use skey; then
+                myconf="--without-pam --with-skey"
+        else
+                myconf="--without-pam --without-skey"
+        fi
+
+        # audit: somebody got to explain me how I can test this before I
+        # enable it.. — Diego
+        econf --with-secure-path="${ROOTPATH}" \
+                --with-editor=/usr/libexec/gentoo-editor \
+                --with-env-editor \
+                $(use_with offensive insults) \
+                $(use_with offensive all-insults) \
+                $(use_with ldap ldap_conf_file /etc/ldap.conf.sudo) \
+                $(use_with ldap) \
+                --without-linux-audit \
+                --with-timedir=/var/db/sudo \
+                --docdir=/usr/share/doc/${PF} \
+                ${myconf}
+
+        emake || die
+}
+
+src_install() {
+        emake DESTDIR="${D}" install || die
+
+        if use ldap; then
+                dodoc README.LDAP schema.OpenLDAP
+                dosbin sudoers2ldif
+
+                cat - > "${T}"/ldap.conf.sudo <<EOF
+# See ldap.conf(5) and README.LDAP for details\n"
+# This file should only be readable by root\n\n"
+# supported directives: host, port, ssl, ldap_version\n"
+# uri, binddn, bindpw, sudoers_base, sudoers_debug\n"
+# tls_{checkpeer,cacertfile,cacertdir,randfile,ciphers,cert,key
+EOF
+
+                insinto /etc
+                doins "${T}"/ldap.conf.sudo
+                fperms 0440 /etc/ldap.conf.sudo
+        fi
+
+        pamd_mimic system-auth sudo auth account session
+
+        insinto /etc
+        doins "${S}"/sudoers
+        fperms 0440 /etc/sudoers
+
+        keepdir /var/db/sudo
+        fperms 0700 /var/db/sudo
+}
+
+pkg_postinst() {
+        if use ldap; then
+                ewarn
+                ewarn "sudo uses the /etc/ldap.conf.sudo file for ldap configuration."
+                ewarn
+                if egrep -q '^[[:space:]]*sudoers:' "${ROOT}"/etc/nsswitch.conf; then
+                        ewarn "In 1.7 series, LDAP is no more consulted, unless explicitly"
+                        ewarn "configured in /etc/nsswitch.conf."
+                        ewarn
+                        ewarn "To make use of LDAP, add this line to your /etc/nsswitch.conf:"
+                        ewarn "  sudoers: ldap files"
+                        ewarn
+                fi
+        fi
+
+        elog "To use the -A (askpass) option, you need to install a compatible"
+        elog "password program from the following list. Starred packages will"
+        elog "automatically register for the use with sudo (but will not force"
+        elog "the -A option):"
+        elog ""
+        elog " [*] net-misc/ssh-askpass-fullscreen"
+        elog "     net-misc/x11-ssh-askpass"
+        elog ""
+        elog "You can override the choice by setting the SUDO_ASKPASS environmnent"
+        elog "variable to the program you want to use."
+}