don't allow a file to be changed to a directory with setfileinfo

diff --git a/source/ntvfs/posix/pvfs_setfileinfo.c b/source/ntvfs/posix/pvfs_setfileinfo.c
index 0beca75ead8c3bb102774afb6d37423d39e0dcf0..1dd2c075d9abf57254552f399ecfdee4c9763e12 100644 (file)
--- a/source/ntvfs/posix/pvfs_setfileinfo.c
+++ b/source/ntvfs/posix/pvfs_setfileinfo.c
@@ -457,7 +457,12 @@ NTSTATUS pvfs_setfileinfo(struct ntvfs_module_context *ntvfs,
 
        /* possibly change the attribute */
        if (newstats.dos.attrib != h->name->dos.attrib) {
-               mode_t mode = pvfs_fileperms(pvfs, newstats.dos.attrib);
+               mode_t mode;
+               if ((newstats.dos.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
+                   !(h->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
+                       return NT_STATUS_INVALID_PARAMETER;
+               }
+               mode = pvfs_fileperms(pvfs, newstats.dos.attrib);
                if (!(h->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
                        if (fchmod(h->fd, mode) == -1) {
                                return pvfs_map_errno(pvfs, errno);