128 lines
2.9 KiB
Bash
Executable File
128 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# provides some general-purpose script functions
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#
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# Copyright (C) 2004 Eric Marchionni, Patrik Rayo
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# Zuercher Hochschule Winterthur
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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############################################
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# print output in color
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#
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function cecho {
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echo -e "\033[1;31m$1\033[0m"
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}
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function cgecho {
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echo -e "\033[1;32m$1\033[0m"
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}
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function cecho-n {
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echo -en "\033[1;31m$1\033[0m"
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}
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#############################################
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# output all args to stderr and exit with
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# return code 1
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#
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die() {
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echo $* 1>&2
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exit 1
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}
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#############################################
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# search and replace strings throughout a
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# whole directory
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#
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function searchandreplace {
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SEARCHSTRING="$1"
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REPLACESTRING="$2"
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DESTDIR="$3"
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[ -d "$DESTDIR" ] || die "$DESTDIR is not a directory!"
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#########################
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# create a temporary file
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#
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TMPFILE="/tmp/sr.$$"
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###########################################
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# search and replace in each found file the
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# given string
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#
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for eachfoundfile in `find $DESTDIR -type f`
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do
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sed -e "s/$SEARCHSTRING/$REPLACESTRING/g" "$eachfoundfile" > "$TMPFILE"
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cp -f "$TMPFILE" "$eachfoundfile"
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done
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###########################
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# delete the temporary file
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#
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rm -f "$TMPFILE"
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}
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#############################################
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# add a bridge
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#
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function umlbr_add {
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brctl addbr "umlbr$1"
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brctl setfd "umlbr$1" 0
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brctl setageing "umlbr$1" 3600
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brctl stp "umlbr$1" off
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ifconfig "umlbr$1" "$2" netmask "$3" up
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}
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#############################################
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# delete a bridge
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#
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function umlbr_del {
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ifconfig "umlbr$1" down &> /dev/null 2>&1
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brctl delbr "umlbr$1" &> /dev/null 2>&1
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}
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#############################################
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# add a tap interface to a bridge
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#
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function umlbr_add_tap {
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tunctl -t "tap$1_$2" &> /dev/null 2>&1
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ifconfig "tap$1_$2" 0.0.0.0 promisc up &> /dev/null 2>&1
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brctl addif "umlbr$1" "tap$1_$2" &> /dev/null 2>&1
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cecho-n "$2.."
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}
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#############################################
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# delete a tap interface from a bridge
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#
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function umlbr_del_tap {
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ifconfig "umlbr$2" down &> /dev/null 2>&1
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brctl delif "umlbr$1" "tap$1_$2" &> /dev/null 2>&1
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tunctl -d "tap$1_$2" &> /dev/null 2>&1
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cecho-n "$2.."
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}
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