/usr/include/lua5.3/lfs.h is in lua-filesystem-dev 1.6.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | /*
** LuaFileSystem
** Copyright Kepler Project 2003 (http://www.keplerproject.org/luafilesystem)
**
** $Id: lfs.h,v 1.5 2008/02/19 20:08:23 mascarenhas Exp $
*/
/* Define 'chdir' for systems that do not implement it */
#ifdef NO_CHDIR
#define chdir(p) (-1)
#define chdir_error "Function 'chdir' not provided by system"
#else
#define chdir_error strerror(errno)
#endif
#ifdef _WIN32
#define chdir(p) (_chdir(p))
#define getcwd(d, s) (_getcwd(d, s))
#define rmdir(p) (_rmdir(p))
#define fileno(f) (_fileno(f))
#endif
int luaopen_lfs (lua_State *L);
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