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# $OpenBSD: agent-ptrace.sh,v 1.1 2002/12/09 15:38:30 markus Exp $
# Placed in the Public Domain.
tid="disallow agent ptrace attach"
if have_prog uname ; then
case `uname` in
AIX|CYGWIN*|OSF1)
echo "skipped (not supported on this platform)"
exit 0
;;
esac
fi
if have_prog gdb ; then
: ok
else
echo "skipped (gdb not found)"
exit 0
fi
if $OBJ/setuid-allowed ${SSHAGENT} ; then
: ok
else
echo "skipped (${SSHAGENT} is mounted on a no-setuid filesystem)"
exit 0
fi
if test -z "$SUDO" ; then
echo "skipped (SUDO not set)"
exit 0
else
$SUDO chown 0 ${SSHAGENT}
$SUDO chgrp 0 ${SSHAGENT}
$SUDO chmod 2755 ${SSHAGENT}
fi
trace "start agent"
eval `${SSHAGENT} -s` > /dev/null
r=$?
if [ $r -ne 0 ]; then
fail "could not start ssh-agent: exit code $r"
else
# ls -l ${SSH_AUTH_SOCK}
gdb ${SSHAGENT} ${SSH_AGENT_PID} > ${OBJ}/gdb.out 2>&1 << EOF
quit
EOF
if [ $? -ne 0 ]; then
fail "gdb failed: exit code $?"
fi
egrep 'ptrace: Operation not permitted.|procfs:.*Permission denied.|ttrace.*Permission denied.|procfs:.*: Invalid argument.|Unable to access task ' >/dev/null ${OBJ}/gdb.out
r=$?
rm -f ${OBJ}/gdb.out
if [ $r -ne 0 ]; then
fail "ptrace succeeded?: exit code $r"
fi
trace "kill agent"
${SSHAGENT} -k > /dev/null
fi
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