Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/boot/i386/rescue/etc/sysconfig/network/scripts/functions.common

Text File | 2006-11-29 | 5.5 KB | 173 lines

#!/bin/bash

# Network interface configuration
#
# Copyright (c) 2002-2003 SuSE Linux AG Nuernberg, Germany.
# All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA
#
# Authors: Michal Svec <[e-mail]>
#          Mads Martin Joergensen <[e-mail]>
#
# $Id: functions.common 1413 2006-02-14 19:18:24Z zoz $
#

# RUN_FILES_BASE contains the path to the configuration data cache.
# It __must__ __not__ contain a trailing slash.
RUN_FILES_BASE=/dev/shm/sysconfig
test -d $RUN_FILES_BASE || mkdir -p $RUN_FILES_BASE

#####################################################################
# Returnvalues
#
# I don't know currently, if all this returnvalues are necessary. Probably some
# of them will be removed. The values 0-7 should be very similar to the LSB
# return values for init scripts
R_SUCCESS=0        # interface has been set up
R_ERROR=1          # any unspecified error
R_USAGE=2          # wrong usage
R_NOTIMPL=3        # feature not implemented
R_NOTALLOWED=4     # insufficient privilege

R_NODEV=7          # the given interface does not exist
R_NOTCONFIGURED=5  # the bootmode does not match the current mode
R_INACTIVE=5       # the interface is not up and it should not
R_NOTRUNNING=7     # the interface is not up but it should be up

R_NOCONFIG=9       # we could not find a matching configuration file
R_BUSY=10          # the interface is busy and should not be shut down.
                   # It will be used for 'ifstatus ... -o stop' or ifdown ... -o
                   # check' or whatever we use for the check if a interface can
                   # be shut down savely.
R_LOCKED=11        # ifup/down is currently running on this hwdesc
R_DHCP_BG=12       # dhcp client is running in bg, but no address up to now
                   # or setting up firewall is still in progress
R_INTERNAL=$R_ERROR      # internal error, e.g. no config or missing scripts
R_NOT_UP2DATE=13   # returned from ifprobe if configuration has changed
R_PROPERTY_NOT_SET=14    # some property of the iface could not be set.
R_NO_IFPLUGD=15    # ifplugd is not running despite configured

export PATH=/sbin:/usr/sbin:/bin:/usr/bin:/etc/sysconfig/network/scripts

LOGGER=/bin/logger

be_quiet_has_gone() {
    mesg "Option 'quiet' has gone. Redirect output instead"
}

logerror () {
    err_mesg "$*"
}

message () {
    mesg "$*"
}

message_n () {
    mesg_n "$*"
}

debug () {
    test -n "$*" && info_mesg "$*"
    test "$DEBUG" == "yes"
}

message_if_not_run_from_rc () {
    if [ "$RUN_FROM_RC" = "yes" ]; then
        debug "$*"
    else
        message "$*"
    fi
    return 0
}

reverse () {
    local X=$1
    test -z "$X" && return
    shift
    reverse $*
    echo $X
}

########################################################################
# output functions
#
# This defines a set of new output functions. One for each syslog level.
# Currently we use only {err,info,debug}_mesg(), but other level may be added
# easily. These functions should replace the old functions logerror(), message()
# and debug()
#
# IMPORTANT: Wanted LOG_LEVEL has to be set _before_ this file is sourced.

# If your script is called from udev and you did not set DEFAULT_LOG_LEVEL we
# use the udev loglevel. Else an unset LOG_LEVEL will be set to 3 (err).
LOG_LEVEL=${LOG_LEVEL:-$DEFAULT_LOG_LEVEL}
LOG_LEVEL=${LOG_LEVEL:-$UDEV_LOG}
LOG_LEVEL=${LOG_LEVEL:-3}
# Also respect variable DEBUG for backward compliance
test "$DEBUG" == yes && LOG_LEVEL=7
SCRIPTNAME=${SCRIPTNAME:-${0##*/}}

if [ "$USE_SYSLOG" != yes ] ; then
    mesg() {
        echo -e "$@" # >&2
    }
    mesg_n() {
        echo -ne "$@" # >&2
    }
else
    mesg() {
        echo -e "$@" # >&2
        echo -e "$@" | logger -t "$SCRIPTNAME"
    }
    mesg_n() {
        echo -ne "$@"  # >&2
        echo -e "$@" | logger -t "$SCRIPTNAME"
    }
fi

# This loop defines one *_mesg() function per loglevel, which does nothing,
# writes to stderr or writes to syslog and stderr depending of the settings of
# LOG_LEVEL and USE_SYSLOG.
# Currently we define only err_mesg(), info_mesg() and debug_mesg(). If you need
# *_mesg functions for other levels, just add the name (instead of the "#") in
# the right order and set 'nl' to the number of the lowest level you use.
# Syslog levels are: emerg alert crit err warning notice info debug
# See what it does with:
#    USE_SYSLOG=<yes|no> LOG_LEVEL=<0-7> . functions.common
#    type err_mesg info_mesg debug_mesg
# nl=0
# for level in emerg "#" crit err warning "#" info debug; do
nl=3
for level in err "#" "#" info debug; do
    eval ${level}_mesg\(\) \{ :\; \}
    eval ${level}_mesg_n\(\) \{ :\; \}
    test "$((nl))" -gt "$LOG_LEVEL" && : $((nl++)) && continue
    if [ "$USE_SYSLOG" != yes ] ; then
        eval ${level}_mesg\(\) \{ echo -e \"\$\@\" 1\>\&2\; \}
        eval ${level}_mesg_n\(\) \{ echo -ne \"\$\@\" 1\>\&2\; \}
    else
        eval ${level}_mesg\(\) \{ echo -e \"\$\@\" 1\>\&2\; \
            echo -e \"\$\@\" \
            \| logger -p $nl -t \"$SCRIPTNAME\" \; \}
        eval ${level}_mesg_n\(\) \{ echo -ne \"\$\@\" 1\>\&2\; \
            echo -e \"\$\@\" \
            \| logger -p $nl -t \"$SCRIPTNAME\" \; \}
    fi
    : $((nl++))
done