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# -*- sh -*-
# Source this file at the beginning of a test that works
# only when run as root or as non-root.
case "$PRIV_CHECK_ARG" in
require-root) who='as root';;
require-non-root) who='by an unprivileged user';;
*) echo "Usage: PRIV_CHECK_ARG={require-root|require-non-root} . priv-check"\
1>&2; exit 1;;
esac
priv_check_temp=priv-check.$$
touch $priv_check_temp || framework_failure=1
chmod a-w $priv_check_temp || framework_failure=1
# FIXME: use id -u, as below -- avoiding use of a temporary file
(echo foo >> $priv_check_temp) >/dev/null 2>&1
overwrite_status=$?
give_msg=no
case $PRIV_CHECK_ARG:$overwrite_status in
require-root:0) ;;
require-root:*) give_msg=yes ;;
require-non-root:0) give_msg=yes ;;
require-non-root:*) ;;
esac
test $give_msg = yes && {
cat <<EOF
***************************
NOTICE:
$0: This test is being skipped, since it works only
when run $who.
***************************
EOF
rm -f $priv_check_temp
(exit 77); exit
}
test "$PRIV_CHECK_ARG" = require-root &&
{
# When running as root, always ensure that we have a valid non-root username.
: ${NON_ROOT_USERNAME=nobody}
# Ensure that the supplied username is valid and with UID != 0.
coreutils_non_root_uid=`setuidgid $NON_ROOT_USERNAME id -u`
test $? = 0 || \
{
echo "$0: This command failed: \`setuidgid $NON_ROOT_USERNAME id -u'" 1>&2
echo "$0: Skipping this test. To enable it, set the envvar" 1>&2
echo "$0: NON_ROOT_USERNAME to a non-root user name." 1>&2
(exit 77); exit 77
}
test "$coreutils_non_root_uid" = 0 && \
{
echo "$0: The specified NON_ROOT_USERNAME ($NON_ROOT_USERNAME)" 1>&2
echo "$0: is invalid because its UID is 0." 1>&2
(exit 1); exit 1
}
}
rm -f $priv_check_temp
|
