--- /dev/null 2006-01-28 19:21:26.000000000 -0800 +++ tsocks.in 2006-01-28 19:21:09.000000000 -0800 @@ -0,0 +1,114 @@ +#!/bin/sh +# Wrapper script for use of the tsocks(8) transparent socksification library +# +# There are three forms of usage for this script: +# +# /usr/bin/tsocks program [program arguments...] +# +# This form sets the users @LD_PRELOAD@ environment variable so that tsocks(8) +# will be loaded to socksify the application then executes the specified +# program (with the provided arguments). The following simple example might +# be used to telnet to www.foo.org via a tsocks.conf(5) configured socks server: +# +# /usr/bin/tsocks telnet www.foo.org +# +# The second form allows for tsocks(8) to be switched on and off for a +# session (that is, it adds and removes tsocks from the @LD_PRELOAD@ environment +# variable). This form must be _sourced_ into the user's existing session +# (and will only work with bourne shell users): +# +# . /usr/bin/tsocks on +# telnet www.foo.org +# . /usr/bin/tsocks off +# +# Or +# +# source /usr/bin/tsocks on +# telnet www.foo.org +# source /usr/bin/tsocks off +# +# The third form creates a new shell with @LD_PRELOAD@ set and is achieved +# simply by running the script with no arguments +# +# /usr/bin/tsocks +# +# When finished the user can simply terminate the shell with 'exit' +# +# This script is originally from the debian tsocks package by +# Tamas Szerb + +if [ $# = 0 ] ; then + echo "$0: insufficient arguments" + exit +fi + +LIBDIR="@libdir@" +LIB_NAME="libtsocks" +SHLIB_EXT="@SHLIB_EXT@" +SHLIB="${LIBDIR}/${LIB_NAME}.${SHLIB_EXT}" + +function show() { + echo "@LD_PRELOAD@ = \"$@LD_PRELOAD@\"" + if [ "@LD_PRELOAD@" = "DYLD_INSERT_LIBRARIES" ] + then + echo "DYLD_FORCE_FLAT_NAMESPACE = \"$DYLD_FORCE_FLAT_NAMESPACE\"" + fi +} + +case "$1" in + on) + if [ -z "$@LD_PRELOAD@" ] + then + echo "Setting @LD_PRELOAD@ ..." + export @LD_PRELOAD@="${SHLIB}" + else + echo "Appending to @LD_PRELOAD@ ..." + echo $@LD_PRELOAD@ | grep -q "${SHLIB}" || \ + export @LD_PRELOAD@="${SHLIB} $@LD_PRELOAD@" + fi + if [ "@LD_PRELOAD@" = "DYLD_INSERT_LIBRARIES" ] + then + # Required variable for Mac OS X + export DYLD_FORCE_FLAT_NAMESPACE=1 + fi + show + ;; + off) + echo "Removing ${SHLIB} from @LD_PRELOAD@ ..." + export @LD_PRELOAD@=`echo -n $@LD_PRELOAD@ | sed 's#@libdir@/libtsocks\.@SHLIB_EXT@ *##'` + if [ -z "$@LD_PRELOAD@" ] + then + unset @LD_PRELOAD@ + fi + show + ;; + show|sh) + show + ;; + -h|-?) + echo "$0: Please see tsocks(1) or read comment at top of $0" + ;; + *) + if [ -z "$@LD_PRELOAD@" ] + then + export @LD_PRELOAD@="${SHLIB}" + else + echo $@LD_PRELOAD@ | grep -q "${SHLIB}" || \ + export @LD_PRELOAD@="${SHLIB} $@LD_PRELOAD@" + fi + + export DYLD_FORCE_FLAT_NAMESPACE=1 + + if [ $# = 0 ] + then + ${SHELL:-/bin/sh} + fi + + if [ $# -gt 0 ] + then + exec "$@" + fi + ;; +esac + +#EOF