Fix signature of open_fd().

server/fd.c

@@ -866,7 +866,7 @@ struct fd *alloc_fd( const struct fd_ops *fd_user_ops, struct object *user )
 /* open() wrapper using a struct fd */
 /* the fd must have been created with alloc_fd */
 /* on error the fd object is released */
-struct fd *open_fd( struct fd *fd, const char *name, int flags, int *mode )
+struct fd *open_fd( struct fd *fd, const char *name, int flags, mode_t *mode )
 {
     struct stat st;
     struct closed_fd *closed_fd;

server/file.h

@@ -45,7 +45,7 @@ struct fd_ops
 /* file descriptor functions */
 
 extern struct fd *alloc_fd( const struct fd_ops *fd_user_ops, struct object *user );
-extern struct fd *open_fd( struct fd *fd, const char *name, int flags, int *mode );
+extern struct fd *open_fd( struct fd *fd, const char *name, int flags, mode_t *mode );
 extern struct fd *create_anonymous_fd( const struct fd_ops *fd_user_ops,
                                        int unix_fd, struct object *user );
 extern void *get_fd_user( struct fd *fd );