process the sshd random-relink kit if it is found. sshd's text segment

is now garbled, and in the future xonly univirse you'll have poor success
downloading it or libc to know where gadgets are.
ok djm

diff --git a/etc/rc b/etc/rc
index d4379e5..466e84c 100644 (file)
--- a/etc/rc
+++ b/etc/rc
@@ -1,4 +1,4 @@
-#      $OpenBSD: rc,v 1.568 2022/12/28 09:53:33 kn Exp $
+#      $OpenBSD: rc,v 1.569 2023/01/18 20:44:40 deraadt Exp $
 
 # System startup script run by init on autoboot or after single-user.
 # Output and error are redirected to console by init, and the console is the
@@ -188,7 +188,7 @@ reorder_libs() {
                fi
        done
 
-       echo 'reordering libraries:'
+       echo 'reordering:'
 
        # Remount the (read-only) filesystems in _ro_list as read-write.
        for _mp in $_ro_list; do
@@ -237,6 +237,21 @@ reorder_libs() {
                ) || { _error=true; break; }
        done
 
+       for _bin in $_relink/usr/sbin/sshd; do
+               _tmpdir=$(mktemp -dq $_relink/_rebuild.XXXXXXXXXXXX) &&
+               (
+               set -o errexit
+               cd $_tmpdir
+               _binn=${_bin##*/}
+               _bint=${_bin}/${_binn}.tar
+               if [[ -f $_bint ]]; then
+                       echo " $_binn"
+                       tar xf $_bint
+                       make -f Makefile.relink relink >/dev/null 2>&1
+               fi
+               ) || { _error=true; break; }
+       done
+               
        rm -rf $_relink/_rebuild.*
 
        # Restore previous mount state if it was changed.