From 07ce1bef0c06f22a0faef73ebe91569f189b1bc3 Mon Sep 17 00:00:00 2001 From: Sean Whitton Date: Sat, 27 Mar 2021 15:57:06 -0700 Subject: :SETUID: check for Lisp-type connection and root Signed-off-by: Sean Whitton --- src/connection/setuid.lisp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/connection/setuid.lisp') diff --git a/src/connection/setuid.lisp b/src/connection/setuid.lisp index 100e98c..76d7fd4 100644 --- a/src/connection/setuid.lisp +++ b/src/connection/setuid.lisp @@ -29,6 +29,8 @@ #-(or sbcl) (foreign-funcall "setgid" :unsigned-int uid :int)) (defmethod establish-connection ((type (eql :setuid)) remaining &key to) + (unless (and (lisp-connection-p) (zerop (foreign-funcall "geteuid" :int))) + (error "~&SETUIDing requires a Lisp image running as root")) (informat 1 "~&SETUIDing to ~A" to) (re:register-groups-bind ((#'parse-integer uid gid)) (#?/uid=([0-9]+).+gid=([0-9]+)/ (mrun "id" to)) -- cgit v1.2.3