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Create a filesystem abstraction layer for CSM and only allow accessing files that are scanned into it. (#5965)

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* Load client-side mods into memory before executing them.

This removes the remaining filesystem access that client-sided mods had and it will hopefully make then more secure.

* Lua Virtual filesystem: don't load the files into memory just scan the filenames into memory.

* Fix the issues with backtrace

* fix most of the issues

* fix code style.

* add a comment
This commit is contained in:
red-001 2017-06-30 19:14:39 +01:00 • committed by Loïc Blot
parent 2e53801fc0
commit f3ad75691a
24 changed files with 230 additions and 101 deletions
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4
src/script/common/c_internal.h
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@ -53,11 +53,11 @@ extern "C" {
#define CUSTOM_RIDX_SCRIPTAPI (CUSTOM_RIDX_BASE)
#define CUSTOM_RIDX_GLOBALS_BACKUP (CUSTOM_RIDX_BASE + 1)
#define CUSTOM_RIDX_CURRENT_MOD_NAME (CUSTOM_RIDX_BASE + 2)
#define CUSTOM_RIDX_ERROR_HANDLER (CUSTOM_RIDX_BASE + 3)
#define CUSTOM_RIDX_BACKTRACE (CUSTOM_RIDX_BASE + 3)
// Pushes the error handler onto the stack and returns its index
#define PUSH_ERROR_HANDLER(L) \
(lua_rawgeti((L), LUA_REGISTRYINDEX, CUSTOM_RIDX_ERROR_HANDLER), lua_gettop((L)))
(lua_rawgeti((L), LUA_REGISTRYINDEX, CUSTOM_RIDX_BACKTRACE), lua_gettop((L)))
#define PCALL_RESL(L, RES) do { \
int result_ = (RES); \