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+# Copyright 1999-2005 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/cron.eclass,v 1.1 2005/01/15 12:37:53 ka0ttic Exp $
+
+# Original Author: Aaron Walker <ka0ttic@gentoo.org>
+#
+# Purpose: The main motivation for this eclass was to simplify
+# the jungle known as src_install() in cron ebuilds. Using these
+# functions also ensures that permissions are *always* reset,
+# preventing the accidental installation of files with wrong perms.
+#
+# NOTE on defaults: the default settings in the below functions were
+# chosen based on the most common setting among cron ebuilds.
+#
+# Please assign any bugs regarding this eclass to cron-bugs@gentoo.org.
+
+inherit eutils flag-o-matic
+
+ECLASS="cron"
+INHERITED="$INHERITED $ECLASS"
+EXPORT_FUNCTIONS pkg_postinst
+
+SLOT="0"
+
+DEPEND="${DEPEND}
+       virtual/libc
+       >=sys-apps/sed-4.0.5"
+
+RDEPEND="${RDEPEND}
+       !virtual/cron
+       virtual/mta
+       >=sys-apps/cronbase-0.2.1-r3"
+
+PROVIDE="virtual/cron"
+
+# docrondir [ dir ] [ perms ]
+#
+# Creates crontab directory
+#
+#      Both arguments are optional.  Everything after 'dir' is considered
+#   the permissions (same format as insopts).
+#
+# ex: docrondir /some/dir -m 0770 -o root -g cron
+#     docrondir /some/dir (uses default perms)
+#     docrondir -m0700 (uses default dir)
+
+docrondir() {
+       # defaults
+       local perms="-m0750 -o root -g cron" dir="/var/spool/cron/crontabs"
+       
+       if [[ -n "$1" ]] ; then
+               case "$1" in
+                       */*)
+                               dir="$1"
+                               shift
+                               [[ -n "$1" ]] && perms="$@"
+                               ;;
+                       *)
+                               perms="$@"
+                               ;;
+               esac
+       fi
+
+       diropts ${perms}
+       keepdir ${dir}
+
+       # reset perms to default
+       diropts -m0755
+}
+
+# docron [ exe ] [ perms ]
+#
+# Install cron executable
+#
+#    Both arguments are optional.
+#
+# ex: docron -m 0700 -o root -g root ('exe' defaults to "cron")
+#     docron crond -m 0110
+
+docron() {
+       local cron="cron" perms="-m 0750 -o root -g root"
+
+       if [[ -n "$1" ]] ; then
+               case "$1" in
+                       -*)
+                               perms="$@"
+                               ;;
+                        *)
+                               cron="$1"
+                               shift
+                               [[ -n "$1" ]] && perms="$@"
+                               ;;
+               esac
+       fi
+
+       exeopts ${perms}
+       exeinto /usr/sbin
+       doexe ${cron} || die "failed to install ${cron}"
+
+       # reset perms to default
+       exeopts -m0755
+}
+
+# docrontab [ exe ] [ perms ]
+#
+# Install crontab executable
+#
+#   Uses same semantics as docron.
+
+docrontab() {
+       local crontab="crontab" perms="-m 4750 -o root -g cron"
+
+       if [[ -n "$1" ]] ; then
+               case "$1" in
+                       -*)
+                               perms="$@"
+                               ;;
+                        *)
+                               crontab="$1"
+                               shift
+                               [[ -n "$1" ]] && perms="$@"
+                               ;;
+               esac
+       fi
+
+       exeopts ${perms}
+       exeinto /usr/bin
+       doexe ${crontab} || die "failed to install ${crontab}"
+
+       # reset perms to default
+       exeopts -m0755
+
+       # users expect /usr/bin/crontab to exist...
+       if [[ "${crontab##*/}" != "crontab" ]] ; then
+               dosym ${crontab##*/} /usr/bin/crontab || \
+                       die "failed to create /usr/bin/crontab symlink"
+       fi
+}
+
+# dopamd [ file ] [ new file ]
+#
+# Install pam auth config file in /etc/pam.d
+#
+# NOTE: this would make much more sense as a portage script (eg. doenvd)
+#
+#   The first argument, 'file' is required.  Install as 'new file', if
+#   specified.
+
+dopamd() {
+       local pamd="${1}" newpamd="${2:-${1}}"
+       [[ -z "${1}" ]] && die "dopamd requires at least one argument."
+       
+       insinto /etc/pam.d
+       # these are the default doins options, but be explicit just in case
+       insopts -m 0644 -o root -g root
+       newins ${pamd} ${newpamd} || die "failed to install ${newpamd}"
+}
+
+cron-pkg_postinst() {
+       echo
+       # vixie is the only daemon that has a true system crontab
+       if [[ "${PN}" != "vixie-cron" ]] ; then
+               einfo "To activate /etc/cron.{hourly|daily|weekly|monthly} please run:"
+               einfo " crontab /etc/crontab"
+               einfo
+               einfo "!!! That will replace root's current crontab !!!"
+               einfo
+       fi
+       
+       einfo "You may wish to read the Gentoo Linux Cron Guide, which can be"
+       einfo "found online at:"
+       einfo "    http://www.gentoo.org/doc/en/cron-guide.xml"
+       echo
+}