From 7b8b467defe138fefee0fd468c89d006ceab2c7f Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Thu, 2 Mar 2006 18:08:09 +0000
Subject: [PATCH] 	* syscalls.cc (chroot): Disallow chroot into special
 directories. 	Return EPERM instead.

---
 winsup/cygwin/ChangeLog   | 5 +++++
 winsup/cygwin/syscalls.cc | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 8c2e24ded..1c2506d78 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2006-03-02  Corinna Vinschen  <corinna@vinschen.de>
+
+	* syscalls.cc (chroot): Disallow chroot into special directories.
+	Return EPERM instead.
+
 2006-03-02  Corinna Vinschen  <corinna@vinschen.de>
 
 	* fhandler_disk_file.cc (__DIR_mounts::check_missing_mount): Check
diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc
index 66c5e38c4..33eef64d3 100644
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -2359,6 +2359,8 @@ chroot (const char *newroot)
     set_errno (ENOENT);
   else if (!path.isdir ())
     set_errno (ENOTDIR);
+  else if (path.isspecial ())
+    set_errno (EPERM);
   else
     {
       getwinenv("PATH="); /* Save the native PATH */