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Fix torify: Do not complain if we cannot find all socksifiers

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No longer complain if we cannot find both torify and tsocks.  As long as
we have one we are happy.

Do not rely on which, it's not POSIX.

Catch error if torsocks fails and print an error message.
This commit is contained in:
Peter Palfrader 2009-09-09 21:33:32 +02:00 committed by Sebastian Hahn
parent 3de5ac9baa
commit 5149ae57f1
1 changed files with 36 additions and 41 deletions
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77
contrib/torify.in
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@ -3,57 +3,52 @@
# Wrapper script for use of the tsocks(8) transparent socksification library
# See the tsocks(1) and torify(1) manpages.
# Copyright (c) 2004, 2006 Peter Palfrader
# Copyright (c) 2004, 2006, 2009 Peter Palfrader
# Modified by Jacob Appelbaum <jacob@appelbaum.net> April 16th 2006
# May be distributed under the same terms as Tor itself
# Define and ensure we have tsocks
# XXX: what if we don't have which?
TORSOCKS="`which torsocks`"
TSOCKS="`which tsocks`"
PROG=""
if [ ! -x "$TSOCKS" ]
then
echo "$0: Can't find tsocks in PATH. Perhaps you haven't installed it?" >&2
else
PROG=$TSOCKS
fi
if [ ! -x "$TORSOCKS" ]
then
echo "$0: Can't find torsocks in PATH. Perhaps you haven't installed it?" >&2
else
PROG=$TORSOCKS
fi
if [ ! -x "$PROG" ]
then
echo "$0: Can't find the required tor helpers in our PATH. Perhaps you haven't installed them?" >&2
exit 1;
fi
# taken from Debian's Developer's Reference, 6.4
pathfind() {
OLDIFS="$IFS"
IFS=:
for p in $PATH; do
if [ -x "$p/$*" ]; then
IFS="$OLDIFS"
return 0
fi
done
IFS="$OLDIFS"
return 1
}
# Check for any argument list
if [ "$#" = 0 ]
then
if [ "$#" = 0 ]; then
echo "Usage: $0 [-hv] <command> [<options>...]" >&2
exit 1
fi
if [ "$#" = 1 ] && ( [ "$1" = "-h" ] || [ "$1" = "--help" ] )
then
if [ "$#" = 1 ] && ( [ "$1" = "-h" ] || [ "$1" = "--help" ] ); then
echo "Usage: $0 [-hv] <command> [<options>...]"
exit 0
fi
if [ "$1" = "-v" ] || [ "$1" = "--verbose" ]
then
echo "We're armed with the following tsocks: $TSOCKS"
echo "We're armed with the following torsocks: $TORSOCKS"
echo "We're attempting to use $PROG for all tor action."
if [ "$1" = "-v" ] || [ "$1" = "--verbose" ]; then
verbose=1
shift 1
else
verbose=0
fi
if [ "$PROG" = "$TSOCKS" ]
then
if pathfind torsocks; then
! [ "$verbose" -ge 1 ] || echo "Using torsocks as socksifier." >&2
exec torsocks "$@"
echo "$0: Failed to exec torsocks $@" >&2
exit 1
elif pathfind tsocks; then
! [ "$verbose" -ge 1 ] || echo "Using tsocks as socksifier." >&2
# Define our tsocks config file
TSOCKS_CONF_FILE="/etc/tor/tor-tsocks.conf"
export TSOCKS_CONF_FILE
@ -61,7 +56,7 @@ then
# Check that we've got a tsocks config file
if [ -r "$TSOCKS_CONF_FILE" ]
then
echo "WARNING: tsocks is known to leak DNS and UDP data." >&2
echo "WARNING: tsocks is known to leak DNS and UDP data. If you had torsocks we would use that." >&2
exec tsocks "$@"
echo "$0: Failed to exec tsocks $@" >&2
exit 1
@ -69,8 +64,8 @@ then
echo "$0: Missing tsocks configuration file \"$TSOCKS_CONF_FILE\"." >&2
exit 1
fi
fi
if [ "$PROG" = "$TORSOCKS" ]
then
exec torsocks "$@"
else
echo "$0: Can't find neither tsocks nor torsocks in your PATH. Perhaps you haven't installed either?" >&2
exit 1
fi