From 0b7a8d5afd3d751fd0f6454098bc9fd1d05ee764 Mon Sep 17 00:00:00 2001
From: William Wilgus <me.theuser@yahoo.com>
Date: Fri, 12 Oct 2018 11:58:09 -0400
Subject: [PATCH] Lua remove unusable/unneeded functions from rocklib_aux

rocklib_aux is auto generated from plugin.h
there are a few functions that get added automatically that
are unusable without their companion functions or duplicate
functionality already supplied by lua

Duplicated functionality:
rb->rand, rb->srand
-- see math.rand math.srand

rb->remove, rb->rename
-- see os.remove, os.rename

Unusable:
rb->open_utf8
-- this should be added to the lua file open routines (if at all)

rb->codec_run_proc, rb->codec_close
-- without rb->codec_load_file these are pointless

rb->timer_set_period, timer_unregister
-- even with timer_register implemented lua is not
-- reentrant and crashes the state when timer fires

Shouldn't be used!:
rb->strlcpy, rb->strlcat, rb->strcpy, rb->strcat
-- lua reuses strings by hashed values you break this contract if
-- you change strings behind its back plus lua provides a way to
-- do these functions safely within the strings api

Change-Id: I2f65704a90930378cbbceb254e52f61e8074471e
---
 apps/plugins/lua/rocklib_aux.pl | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/apps/plugins/lua/rocklib_aux.pl b/apps/plugins/lua/rocklib_aux.pl
index 9103fccbda..8256b838ed 100755
--- a/apps/plugins/lua/rocklib_aux.pl
+++ b/apps/plugins/lua/rocklib_aux.pl
@@ -51,17 +51,25 @@ my @ported_functions;
 # you want to manually port them to Lua. The format is a standard Perl regular
 # expression.
 my @forbidden_functions = ('^open$',
+                           '^open_utf8$',
                            '^close$',
                            '^read$',
                            '^write$',
                            '^mkdir$',
                            '^rmdir$',
+                           '^remove$',
+                           '^rename$',
                            '^lseek$',
                            '^ftruncate$',
                            '^filesize$',
                            '^fdprintf$',
                            '^read_line$',
                            '^[a-z]+dir$',
+                           '^s?+rand$',
+                           '^strl?+cpy$',
+                           '^strl?+cat$',
+                           '^codec_',
+                           '^timer_',
                            '^__.+$',
                            '^.+_(un)?cached$',
                            '^audio_play$',