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058674a62f
environment variable expansion in various keywords (bz#3140). ok djm@ OpenBSD-Regress-ID: 4d9ceb95d89365b7b674bc26cf064c15a5bbb197
100 lines
2.7 KiB
Bash
100 lines
2.7 KiB
Bash
# $OpenBSD: percent.sh,v 1.7 2020/05/29 04:32:26 dtucker Exp $
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# Placed in the Public Domain.
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tid="percent expansions"
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if [ -x "/usr/xpg4/bin/id" ]; then
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PATH=/usr/xpg4/bin:$PATH
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export PATH
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fi
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USER=`id -u -n`
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USERID=`id -u`
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HOST=`hostname | cut -f1 -d.`
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HOSTNAME=`hostname`
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# Localcommand is evaluated after connection because %T is not available
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# until then. Because of this we use a different method of exercising it,
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# and we can't override the remote user otherwise authentication will fail.
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# We also have to explicitly enable it.
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echo "permitlocalcommand yes" >> $OBJ/ssh_proxy
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trial()
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{
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opt="$1"; arg="$2"; expect="$3"
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trace "test $opt=$arg $expect"
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rm -f $OBJ/actual
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case "$opt" in
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localcommand)
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${SSH} -F $OBJ/ssh_proxy -o $opt="echo '$arg' >$OBJ/actual" \
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somehost true
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got=`cat $OBJ/actual`
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;;
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matchexec)
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(cat $OBJ/ssh_proxy && \
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echo "Match Exec \"echo '$arg' >$OBJ/actual\"") \
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>$OBJ/ssh_proxy_match
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${SSH} -F $OBJ/ssh_proxy_match remuser@somehost true || true
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got=`cat $OBJ/actual`
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;;
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*forward)
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# LocalForward and RemoteForward take two args and only
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# operate on Unix domain socket paths
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got=`${SSH} -F $OBJ/ssh_proxy -o $opt="/$arg /$arg" -G \
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remuser@somehost | awk '$1=="'$opt'"{print $2" "$3}'`
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expect="/$expect /$expect"
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;;
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*)
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got=`${SSH} -F $OBJ/ssh_proxy -o $opt="$arg" -G \
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remuser@somehost | awk '$1=="'$opt'"{print $2}'`
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esac
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if [ "$got" != "$expect" ]; then
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fail "$opt=$arg expect $expect got $got"
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fi
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}
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for i in matchexec localcommand remotecommand controlpath identityagent \
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forwardagent localforward remoteforward; do
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verbose $tid $i percent
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if [ "$i" = "localcommand" ]; then
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REMUSER=$USER
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trial $i '%T' NONE
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else
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REMUSER=remuser
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fi
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# Matches implementation in readconf.c:ssh_connection_hash()
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HASH=`printf "${HOSTNAME}127.0.0.1${PORT}$REMUSER" |
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openssl sha1 | cut -f2 -d' '`
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trial $i '%%' '%'
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trial $i '%C' $HASH
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trial $i '%i' $USERID
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trial $i '%h' 127.0.0.1
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trial $i '%d' $HOME
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trial $i '%L' $HOST
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trial $i '%l' $HOSTNAME
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trial $i '%n' somehost
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trial $i '%p' $PORT
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trial $i '%r' $REMUSER
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trial $i '%u' $USER
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trial $i '%%/%C/%i/%h/%d/%L/%l/%n/%p/%r/%u' \
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"%/$HASH/$USERID/127.0.0.1/$HOME/$HOST/$HOSTNAME/somehost/$PORT/$REMUSER/$USER"
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done
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# Subset of above since we don't expand shell-style variables on anything that
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# runs a command because the shell will expand those.
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for i in controlpath identityagent forwardagent localforward remoteforward; do
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verbose $tid $i dollar
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FOO=bar
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export FOO
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trial $i '${FOO}' $FOO
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done
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# A subset of options support tilde expansion
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for i in controlpath identityagent forwardagent; do
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verbose $tid $i tilde
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trial $i '~' $HOME/
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trial $i '~/.ssh' $HOME/.ssh
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done
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