Author: dteske
Date: Mon Nov  2 22:32:59 2015
New Revision: 290304
URL: https://svnweb.freebsd.org/changeset/base/290304

Log:
  MFC r287381: Properly escape arguments when moving into jail or chroot

Modified:
  stable/10/usr.sbin/sysrc/sysrc
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/usr.sbin/sysrc/sysrc
==============================================================================
--- stable/10/usr.sbin/sysrc/sysrc      Mon Nov  2 22:32:13 2015        
(r290303)
+++ stable/10/usr.sbin/sysrc/sysrc      Mon Nov  2 22:32:59 2015        
(r290304)
@@ -195,6 +195,24 @@ jail_depend()
        cat $BSDCFG_SHARE/sysrc.subr
 }
 
+escape()
+{
+       local __start="$1" __var_to_set="$2" __string=
+       while [ "$__start" ]; do
+               case "$__start" in *\'*)
+                       __string="$__string${__start%%\'*}'\\''"
+                       __start="${__start#*\'}" continue
+               esac
+               break
+       done
+       __string="$__string$__start"
+       if [ "$__var_to_set" ]; then
+               setvar "$__var_to_set" "$__string"
+       else
+               echo "$__string"
+       fi
+}
+
 ############################################################ MAIN SOURCE
 
 #
@@ -330,9 +348,12 @@ if [ "$JAIL" -o "$ROOTDIR" ]; then
                $( [ "$SHOW_FILE"  ] && echo \ -F )
        "
        if [ "${RC_CONFS+set}" ]; then
-               args="$args -f '$RC_CONFS'"
+               escape "$RC_CONFS" _RC_CONFS
+               args="$args -f '$_RC_CONFS'"
+               unset _RC_CONFS
        fi
        for arg in "$@"; do
+               escape "$arg" arg
                args="$args '$arg'"
        done
 
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