xref: /freebsd/libexec/flua/linit_flua.c (revision 56b17de1e8360fe131d425de20b5e75ff3ea897c)
1 /*
2 ** $Id: linit.c,v 1.39.1.1 2017/04/19 17:20:42 roberto Exp $
3 ** Initialization of libraries for lua.c and other clients
4 ** See Copyright Notice in lua.h
5 */
6 
7 
8 #define linit_c
9 #define LUA_LIB
10 
11 /*
12 ** If you embed Lua in your program and need to open the standard
13 ** libraries, call luaL_openlibs in your program. If you need a
14 ** different set of libraries, copy this file to your project and edit
15 ** it to suit your needs.
16 **
17 ** You can also *preload* libraries, so that a later 'require' can
18 ** open the library, which is already linked to the application.
19 ** For that, do the following code:
20 **
21 **  luaL_getsubtable(L, LUA_REGISTRYINDEX, LUA_PRELOAD_TABLE);
22 **  lua_pushcfunction(L, luaopen_modname);
23 **  lua_setfield(L, -2, modname);
24 **  lua_pop(L, 1);  // remove PRELOAD table
25 */
26 
27 #include "lprefix.h"
28 
29 
30 #include <stddef.h>
31 
32 #include "lua.h"
33 
34 #include "lualib.h"
35 #include "lauxlib.h"
36 #include "lfs.h"
37 #include "lposix.h"
38 #include "lfbsd.h"
39 
40 /*
41 ** these libs are loaded by lua.c and are readily available to any Lua
42 ** program
43 */
44 static const luaL_Reg loadedlibs[] = {
45   {"_G", luaopen_base},
46   {LUA_LOADLIBNAME, luaopen_package},
47   {LUA_COLIBNAME, luaopen_coroutine},
48   {LUA_TABLIBNAME, luaopen_table},
49   {LUA_IOLIBNAME, luaopen_io},
50   {LUA_OSLIBNAME, luaopen_os},
51   {LUA_STRLIBNAME, luaopen_string},
52   {LUA_MATHLIBNAME, luaopen_math},
53   {LUA_UTF8LIBNAME, luaopen_utf8},
54   {LUA_DBLIBNAME, luaopen_debug},
55 #if defined(LUA_COMPAT_BITLIB)
56   {LUA_BITLIBNAME, luaopen_bit32},
57 #endif
58   /* FreeBSD Extensions */
59   {"lfs", luaopen_lfs},
60   {"posix.libgen", luaopen_posix_libgen},
61   {"posix.stdlib", luaopen_posix_stdlib},
62   {"posix.sys.stat", luaopen_posix_sys_stat},
63   {"posix.sys.utsname", luaopen_posix_sys_utsname},
64   {"posix.sys.wait", luaopen_posix_sys_wait},
65   {"posix.unistd", luaopen_posix_unistd},
66   {"fbsd", luaopen_fbsd},
67   {NULL, NULL}
68 };
69 
70 
71 LUALIB_API void luaL_openlibs (lua_State *L) {
72   const luaL_Reg *lib;
73   /* "require" functions from 'loadedlibs' and set results to global table */
74   for (lib = loadedlibs; lib->func; lib++) {
75     luaL_requiref(L, lib->name, lib->func, 1);
76     lua_pop(L, 1);  /* remove lib */
77   }
78 }
79 
80