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| author | Přemysl Janouch <p.janouch@gmail.com> | 2015-01-21 00:12:41 +0100 |
|---|---|---|
| committer | Přemysl Janouch <p.janouch@gmail.com> | 2015-01-21 00:12:41 +0100 |
| commit | d8ecd402c9fffe7555d339d500f7525f5703ef58 (patch) | |
| tree | ec855ab55a341376657f9df09887a0b174f7cf39 | |
| parent | 8ecdab1ddd84086b2d7a0e1552eccbd1a869308c (diff) | |
| download | ponymap-d8ecd402c9fffe7555d339d500f7525f5703ef58.tar.gz ponymap-d8ecd402c9fffe7555d339d500f7525f5703ef58.tar.xz ponymap-d8ecd402c9fffe7555d339d500f7525f5703ef58.zip | |
Introduce Lua API version checking
| -rw-r--r-- | plugins/lua-loader.c | 24 | ||||
| -rw-r--r-- | plugins/socks.lua | 2 |
2 files changed, 21 insertions, 5 deletions
diff --git a/plugins/lua-loader.c b/plugins/lua-loader.c index 341327b..3fc38e9 100644 --- a/plugins/lua-loader.c +++ b/plugins/lua-loader.c @@ -29,6 +29,8 @@ #include <lualib.h> #include <lauxlib.h> +#define XLUA_API_VERSION 1 ///< Version of the Lua API + // --- Utilities --------------------------------------------------------------- static struct plugin_data @@ -63,13 +65,13 @@ xlua_panic (lua_State *L) // --- Unit wrapper ------------------------------------------------------------ +#define UNIT_METATABLE "unit" ///< Identifier for the Lua metatable + struct unit_wrapper { struct unit *unit; ///< The underlying unit }; -#define UNIT_METATABLE "unit" - static int xlua_unit_get_address (lua_State *L) { @@ -341,11 +343,21 @@ xlua_get_config (lua_State *L) return 0; } +static int +xlua_check_api_version (lua_State *L) +{ + lua_Integer requested = luaL_checkinteger (L, 1); + if (requested != XLUA_API_VERSION) + return luaL_error (L, "incompatible API version"); + return 0; +} + static luaL_Reg xlua_library[] = { - { "register_service", xlua_register_service }, - { "get_config", xlua_get_config }, - { NULL, NULL } + { "register_service", xlua_register_service }, + { "get_config", xlua_get_config }, + { "check_api_version", xlua_check_api_version }, + { NULL, NULL } }; static bool @@ -403,6 +415,8 @@ initialize (void *ctx, struct plugin_api *api) luaL_newlib (L, xlua_library); lua_pushinteger (L, SERVICE_SUPPORTS_TLS); lua_setfield (L, -2, "SERVICE_SUPPORTS_TLS"); + lua_pushinteger (L, XLUA_API_VERSION); + lua_setfield (L, -2, "api_version"); lua_setglobal (L, PROGRAM_NAME); // Create a metatable for the units diff --git a/plugins/socks.lua b/plugins/socks.lua index 8497bbb..9835f04 100644 --- a/plugins/socks.lua +++ b/plugins/socks.lua @@ -19,6 +19,8 @@ -- This plugin serves as an example of how to write Lua plugins for ponymap +ponymap.check_api_version (1) + -- SOCKS 4 local Socks4 = {} |