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authorDenis Bitouzé <dbitouze@wanadoo.fr>2021-02-25 18:23:07 +0000
committerDenis Bitouzé <dbitouze@wanadoo.fr>2021-02-25 18:23:07 +0000
commitc6101f91d071883b48b1b4b51e5eba0f36d9a78d (patch)
tree1bf7f5a881d7a4f5c5bf59d0b2821943dd822372 /Build/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c
parent07ee7222e389b0777456b427a55c22d0e6ffd267 (diff)
French translation for tlmgr updated
git-svn-id: svn://tug.org/texlive/trunk@57912 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c')
-rw-r--r--Build/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c941
1 files changed, 0 insertions, 941 deletions
diff --git a/Build/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c b/Build/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c
deleted file mode 100644
index c8122c2ca95..00000000000
--- a/Build/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c
+++ /dev/null
@@ -1,941 +0,0 @@
-/*
-** LuaFileSystem
-** Copyright Kepler Project 2003 - 2017 (http://keplerproject.github.io/luafilesystem)
-**
-** File system manipulation library.
-** This library offers these functions:
-** lfs.attributes (filepath [, attributename | attributetable])
-** lfs.chdir (path)
-** lfs.currentdir ()
-** lfs.dir (path)
-** lfs.link (old, new[, symlink])
-** lfs.lock (fh, mode)
-** lfs.lock_dir (path)
-** lfs.mkdir (path)
-** lfs.rmdir (path)
-** lfs.setmode (filepath, mode)
-** lfs.symlinkattributes (filepath [, attributename])
-** lfs.touch (filepath [, atime [, mtime]])
-** lfs.unlock (fh)
-*/
-
-#ifndef LFS_DO_NOT_USE_LARGE_FILE
-#ifndef _WIN32
-#ifndef _AIX
-#define _FILE_OFFSET_BITS 64 /* Linux, Solaris and HP-UX */
-#else
-#define _LARGE_FILES 1 /* AIX */
-#endif
-#endif
-#endif
-
-#ifndef LFS_DO_NOT_USE_LARGE_FILE
-#define _LARGEFILE64_SOURCE
-#endif
-
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include <sys/stat.h>
-
-#ifdef _WIN32
- #include <direct.h>
- #include <windows.h>
- #include <io.h>
- #include <sys/locking.h>
- #ifdef __BORLANDC__
- #include <utime.h>
- #else
- #include <sys/utime.h>
- #endif
- #include <fcntl.h>
- /* MAX_PATH seems to be 260. Seems kind of small. Is there a better one? */
- #define LFS_MAXPATHLEN MAX_PATH
-#else
- #include <unistd.h>
- #include <dirent.h>
- #include <fcntl.h>
- #include <sys/types.h>
- #include <utime.h>
- #include <sys/param.h> /* for MAXPATHLEN */
- #define LFS_MAXPATHLEN MAXPATHLEN
-#endif
-
-#include <lua.h>
-#include <lauxlib.h>
-#include <lualib.h>
-
-#include "lfs.h"
-
-#define LFS_VERSION "1.7.0"
-#define LFS_LIBNAME "lfs"
-
-#if LUA_VERSION_NUM >= 503 /* Lua 5.3 */
-
-#ifndef luaL_optlong
-#define luaL_optlong luaL_optinteger
-#endif
-
-#endif
-
-#if LUA_VERSION_NUM >= 502
-# define new_lib(L, l) (luaL_newlib(L, l))
-#else
-# define new_lib(L, l) (lua_newtable(L), luaL_register(L, NULL, l))
-#endif
-
-/* Define 'strerror' for systems that do not implement it */
-#ifdef NO_STRERROR
-#define strerror(_) "System unable to describe the error"
-#endif
-
-#define DIR_METATABLE "directory metatable"
-typedef struct dir_data {
- int closed;
-#ifdef _WIN32
- intptr_t hFile;
- char pattern[MAX_PATH+1];
-#else
- DIR *dir;
-#endif
-} dir_data;
-
-#define LOCK_METATABLE "lock metatable"
-
-#ifdef _WIN32
- #ifdef __BORLANDC__
- #define lfs_setmode(file, m) (setmode(_fileno(file), m))
- #define STAT_STRUCT struct stati64
- #else
- #define lfs_setmode(file, m) (_setmode(_fileno(file), m))
- #define STAT_STRUCT struct _stati64
- #endif
-#define STAT_FUNC _stati64
-#define LSTAT_FUNC STAT_FUNC
-#else
-#define _O_TEXT 0
-#define _O_BINARY 0
-#define lfs_setmode(file, m) ((void)file, (void)m, 0)
-#define STAT_STRUCT struct stat
-#define STAT_FUNC stat
-#define LSTAT_FUNC lstat
-#endif
-
-#ifdef _WIN32
- #define lfs_mkdir _mkdir
-#else
- #define lfs_mkdir(path) (mkdir((path), \
- S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | S_IXOTH))
-#endif
-
-/*
-** Utility functions
-*/
-static int pusherror(lua_State *L, const char *info)
-{
- lua_pushnil(L);
- if (info==NULL)
- lua_pushstring(L, strerror(errno));
- else
- lua_pushfstring(L, "%s: %s", info, strerror(errno));
- lua_pushinteger(L, errno);
- return 3;
-}
-
-static int pushresult(lua_State *L, int res, const char *info) {
- if (res == -1) {
- return pusherror(L, info);
- } else {
- lua_pushboolean(L, 1);
- return 1;
- }
-}
-
-
-/*
-** This function changes the working (current) directory
-*/
-static int change_dir (lua_State *L) {
- const char *path = luaL_checkstring(L, 1);
- if (chdir(path)) {
- lua_pushnil (L);
- lua_pushfstring (L,"Unable to change working directory to '%s'\n%s\n",
- path, chdir_error);
- return 2;
- } else {
- lua_pushboolean (L, 1);
- return 1;
- }
-}
-
-/*
-** This function returns the current directory
-** If unable to get the current directory, it returns nil
-** and a string describing the error
-*/
-static int get_dir (lua_State *L) {
-#ifdef NO_GETCWD
- lua_pushnil(L);
- lua_pushstring(L, "Function 'getcwd' not provided by system");
- return 2;
-#else
- char *path = NULL;
- /* Passing (NULL, 0) is not guaranteed to work. Use a temp buffer and size instead. */
- size_t size = LFS_MAXPATHLEN; /* initial buffer size */
- int result;
- while (1) {
- path = realloc(path, size);
- if (!path) /* failed to allocate */
- return pusherror(L, "get_dir realloc() failed");
- if (getcwd(path, size) != NULL) {
- /* success, push the path to the Lua stack */
- lua_pushstring(L, path);
- result = 1;
- break;
- }
- if (errno != ERANGE) { /* unexpected error */
- result = pusherror(L, "get_dir getcwd() failed");
- break;
- }
- /* ERANGE = insufficient buffer capacity, double size and retry */
- size *= 2;
- }
- free(path);
- return result;
-#endif
-}
-
-/*
-** Check if the given element on the stack is a file and returns it.
-*/
-static FILE *check_file (lua_State *L, int idx, const char *funcname) {
-#if LUA_VERSION_NUM == 501
- FILE **fh = (FILE **)luaL_checkudata (L, idx, "FILE*");
- if (*fh == NULL) {
- luaL_error (L, "%s: closed file", funcname);
- return 0;
- } else
- return *fh;
-#elif LUA_VERSION_NUM >= 502 && LUA_VERSION_NUM <= 503
- luaL_Stream *fh = (luaL_Stream *)luaL_checkudata (L, idx, "FILE*");
- if (fh->closef == 0 || fh->f == NULL) {
- luaL_error (L, "%s: closed file", funcname);
- return 0;
- } else
- return fh->f;
-#else
-#error unsupported Lua version
-#endif
-}
-
-
-/*
-**
-*/
-static int _file_lock (lua_State *L, FILE *fh, const char *mode, const long start, long len, const char *funcname) {
- int code;
-#ifdef _WIN32
- /* lkmode valid values are:
- LK_LOCK Locks the specified bytes. If the bytes cannot be locked, the program immediately tries again after 1 second. If, after 10 attempts, the bytes cannot be locked, the constant returns an error.
- LK_NBLCK Locks the specified bytes. If the bytes cannot be locked, the constant returns an error.
- LK_NBRLCK Same as _LK_NBLCK.
- LK_RLCK Same as _LK_LOCK.
- LK_UNLCK Unlocks the specified bytes, which must have been previously locked.
-
- Regions should be locked only briefly and should be unlocked before closing a file or exiting the program.
-
- http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_crt__locking.asp
- */
- int lkmode;
- switch (*mode) {
- case 'r': lkmode = LK_NBLCK; break;
- case 'w': lkmode = LK_NBLCK; break;
- case 'u': lkmode = LK_UNLCK; break;
- default : return luaL_error (L, "%s: invalid mode", funcname);
- }
- if (!len) {
- fseek (fh, 0L, SEEK_END);
- len = ftell (fh);
- }
- fseek (fh, start, SEEK_SET);
-#ifdef __BORLANDC__
- code = locking (fileno(fh), lkmode, len);
-#else
- code = _locking (fileno(fh), lkmode, len);
-#endif
-#else
- struct flock f;
- switch (*mode) {
- case 'w': f.l_type = F_WRLCK; break;
- case 'r': f.l_type = F_RDLCK; break;
- case 'u': f.l_type = F_UNLCK; break;
- default : return luaL_error (L, "%s: invalid mode", funcname);
- }
- f.l_whence = SEEK_SET;
- f.l_start = (off_t)start;
- f.l_len = (off_t)len;
- code = fcntl (fileno(fh), F_SETLK, &f);
-#endif
- return (code != -1);
-}
-
-#ifdef _WIN32
-typedef struct lfs_Lock {
- HANDLE fd;
-} lfs_Lock;
-static int lfs_lock_dir(lua_State *L) {
- size_t pathl; HANDLE fd;
- lfs_Lock *lock;
- char *ln;
- const char *lockfile = "/lockfile.lfs";
- const char *path = luaL_checklstring(L, 1, &pathl);
- ln = (char*)malloc(pathl + strlen(lockfile) + 1);
- if(!ln) {
- lua_pushnil(L); lua_pushstring(L, strerror(errno)); return 2;
- }
- strcpy(ln, path); strcat(ln, lockfile);
- if((fd = CreateFile(ln, GENERIC_WRITE, 0, NULL, CREATE_NEW,
- FILE_ATTRIBUTE_NORMAL | FILE_FLAG_DELETE_ON_CLOSE, NULL)) == INVALID_HANDLE_VALUE) {
- int en = GetLastError();
- free(ln); lua_pushnil(L);
- if(en == ERROR_FILE_EXISTS || en == ERROR_SHARING_VIOLATION)
- lua_pushstring(L, "File exists");
- else
- lua_pushstring(L, strerror(en));
- return 2;
- }
- free(ln);
- lock = (lfs_Lock*)lua_newuserdata(L, sizeof(lfs_Lock));
- lock->fd = fd;
- luaL_getmetatable (L, LOCK_METATABLE);
- lua_setmetatable (L, -2);
- return 1;
-}
-static int lfs_unlock_dir(lua_State *L) {
- lfs_Lock *lock = (lfs_Lock *)luaL_checkudata(L, 1, LOCK_METATABLE);
- if(lock->fd != INVALID_HANDLE_VALUE) {
- CloseHandle(lock->fd);
- lock->fd=INVALID_HANDLE_VALUE;
- }
- return 0;
-}
-#else
-typedef struct lfs_Lock {
- char *ln;
-} lfs_Lock;
-static int lfs_lock_dir(lua_State *L) {
- lfs_Lock *lock;
- size_t pathl;
- char *ln;
- const char *lockfile = "/lockfile.lfs";
- const char *path = luaL_checklstring(L, 1, &pathl);
- lock = (lfs_Lock*)lua_newuserdata(L, sizeof(lfs_Lock));
- ln = (char*)malloc(pathl + strlen(lockfile) + 1);
- if(!ln) {
- lua_pushnil(L); lua_pushstring(L, strerror(errno)); return 2;
- }
- strcpy(ln, path); strcat(ln, lockfile);
- if(symlink("lock", ln) == -1) {
- free(ln); lua_pushnil(L);
- lua_pushstring(L, strerror(errno)); return 2;
- }
- lock->ln = ln;
- luaL_getmetatable (L, LOCK_METATABLE);
- lua_setmetatable (L, -2);
- return 1;
-}
-static int lfs_unlock_dir(lua_State *L) {
- lfs_Lock *lock = (lfs_Lock *)luaL_checkudata(L, 1, LOCK_METATABLE);
- if(lock->ln) {
- unlink(lock->ln);
- free(lock->ln);
- lock->ln = NULL;
- }
- return 0;
-}
-#endif
-
-static int lfs_g_setmode (lua_State *L, FILE *f, int arg) {
- static const int mode[] = {_O_BINARY, _O_TEXT};
- static const char *const modenames[] = {"binary", "text", NULL};
- int op = luaL_checkoption(L, arg, NULL, modenames);
- int res = lfs_setmode(f, mode[op]);
- if (res != -1) {
- int i;
- lua_pushboolean(L, 1);
- for (i = 0; modenames[i] != NULL; i++) {
- if (mode[i] == res) {
- lua_pushstring(L, modenames[i]);
- return 2;
- }
- }
- lua_pushnil(L);
- return 2;
- } else {
- return pusherror(L, NULL);
- }
-}
-
-static int lfs_f_setmode(lua_State *L) {
- return lfs_g_setmode(L, check_file(L, 1, "setmode"), 2);
-}
-
-/*
-** Locks a file.
-** @param #1 File handle.
-** @param #2 String with lock mode ('w'rite, 'r'ead).
-** @param #3 Number with start position (optional).
-** @param #4 Number with length (optional).
-*/
-static int file_lock (lua_State *L) {
- FILE *fh = check_file (L, 1, "lock");
- const char *mode = luaL_checkstring (L, 2);
- const long start = (long) luaL_optinteger (L, 3, 0);
- long len = (long) luaL_optinteger (L, 4, 0);
- if (_file_lock (L, fh, mode, start, len, "lock")) {
- lua_pushboolean (L, 1);
- return 1;
- } else {
- lua_pushnil (L);
- lua_pushfstring (L, "%s", strerror(errno));
- return 2;
- }
-}
-
-
-/*
-** Unlocks a file.
-** @param #1 File handle.
-** @param #2 Number with start position (optional).
-** @param #3 Number with length (optional).
-*/
-static int file_unlock (lua_State *L) {
- FILE *fh = check_file (L, 1, "unlock");
- const long start = (long) luaL_optinteger (L, 2, 0);
- long len = (long) luaL_optinteger (L, 3, 0);
- if (_file_lock (L, fh, "u", start, len, "unlock")) {
- lua_pushboolean (L, 1);
- return 1;
- } else {
- lua_pushnil (L);
- lua_pushfstring (L, "%s", strerror(errno));
- return 2;
- }
-}
-
-
-/*
-** Creates a link.
-** @param #1 Object to link to.
-** @param #2 Name of link.
-** @param #3 True if link is symbolic (optional).
-*/
-static int make_link (lua_State *L) {
-#ifndef _WIN32
- const char *oldpath = luaL_checkstring(L, 1);
- const char *newpath = luaL_checkstring(L, 2);
- int res = (lua_toboolean(L,3) ? symlink : link)(oldpath, newpath);
- if (res == -1) {
- return pusherror(L, NULL);
- } else {
- lua_pushinteger(L, 0);
- return 1;
- }
-#else
- errno = ENOSYS; /* = "Function not implemented" */
- return pushresult(L, -1, "make_link is not supported on Windows");
-#endif
-}
-
-
-/*
-** Creates a directory.
-** @param #1 Directory path.
-*/
-static int make_dir (lua_State *L) {
- const char *path = luaL_checkstring(L, 1);
- return pushresult(L, lfs_mkdir(path), NULL);
-}
-
-
-/*
-** Removes a directory.
-** @param #1 Directory path.
-*/
-static int remove_dir (lua_State *L) {
- const char *path = luaL_checkstring(L, 1);
- return pushresult(L, rmdir(path), NULL);
-}
-
-
-/*
-** Directory iterator
-*/
-static int dir_iter (lua_State *L) {
-#ifdef _WIN32
- struct _finddata_t c_file;
-#else
- struct dirent *entry;
-#endif
- dir_data *d = (dir_data *)luaL_checkudata (L, 1, DIR_METATABLE);
- luaL_argcheck (L, d->closed == 0, 1, "closed directory");
-#ifdef _WIN32
- if (d->hFile == 0L) { /* first entry */
- if ((d->hFile = _findfirst (d->pattern, &c_file)) == -1L) {
- lua_pushnil (L);
- lua_pushstring (L, strerror (errno));
- d->closed = 1;
- return 2;
- } else {
- lua_pushstring (L, c_file.name);
- return 1;
- }
- } else { /* next entry */
- if (_findnext (d->hFile, &c_file) == -1L) {
- /* no more entries => close directory */
- _findclose (d->hFile);
- d->closed = 1;
- return 0;
- } else {
- lua_pushstring (L, c_file.name);
- return 1;
- }
- }
-#else
- if ((entry = readdir (d->dir)) != NULL) {
- lua_pushstring (L, entry->d_name);
- return 1;
- } else {
- /* no more entries => close directory */
- closedir (d->dir);
- d->closed = 1;
- return 0;
- }
-#endif
-}
-
-
-/*
-** Closes directory iterators
-*/
-static int dir_close (lua_State *L) {
- dir_data *d = (dir_data *)lua_touserdata (L, 1);
-#ifdef _WIN32
- if (!d->closed && d->hFile) {
- _findclose (d->hFile);
- }
-#else
- if (!d->closed && d->dir) {
- closedir (d->dir);
- }
-#endif
- d->closed = 1;
- return 0;
-}
-
-
-/*
-** Factory of directory iterators
-*/
-static int dir_iter_factory (lua_State *L) {
- const char *path = luaL_checkstring (L, 1);
- dir_data *d;
- lua_pushcfunction (L, dir_iter);
- d = (dir_data *) lua_newuserdata (L, sizeof(dir_data));
- luaL_getmetatable (L, DIR_METATABLE);
- lua_setmetatable (L, -2);
- d->closed = 0;
-#ifdef _WIN32
- d->hFile = 0L;
- if (strlen(path) > MAX_PATH-2)
- luaL_error (L, "path too long: %s", path);
- else
- sprintf (d->pattern, "%s/*", path);
-#else
- d->dir = opendir (path);
- if (d->dir == NULL)
- luaL_error (L, "cannot open %s: %s", path, strerror (errno));
-#endif
- return 2;
-}
-
-
-/*
-** Creates directory metatable.
-*/
-static int dir_create_meta (lua_State *L) {
- luaL_newmetatable (L, DIR_METATABLE);
-
- /* Method table */
- lua_newtable(L);
- lua_pushcfunction (L, dir_iter);
- lua_setfield(L, -2, "next");
- lua_pushcfunction (L, dir_close);
- lua_setfield(L, -2, "close");
-
- /* Metamethods */
- lua_setfield(L, -2, "__index");
- lua_pushcfunction (L, dir_close);
- lua_setfield (L, -2, "__gc");
- return 1;
-}
-
-
-/*
-** Creates lock metatable.
-*/
-static int lock_create_meta (lua_State *L) {
- luaL_newmetatable (L, LOCK_METATABLE);
-
- /* Method table */
- lua_newtable(L);
- lua_pushcfunction(L, lfs_unlock_dir);
- lua_setfield(L, -2, "free");
-
- /* Metamethods */
- lua_setfield(L, -2, "__index");
- lua_pushcfunction(L, lfs_unlock_dir);
- lua_setfield(L, -2, "__gc");
- return 1;
-}
-
-
-#ifdef _WIN32
- #ifndef S_ISDIR
- #define S_ISDIR(mode) (mode&_S_IFDIR)
- #endif
- #ifndef S_ISREG
- #define S_ISREG(mode) (mode&_S_IFREG)
- #endif
- #ifndef S_ISLNK
- #define S_ISLNK(mode) (0)
- #endif
- #ifndef S_ISSOCK
- #define S_ISSOCK(mode) (0)
- #endif
- #ifndef S_ISFIFO
- #define S_ISFIFO(mode) (0)
- #endif
- #ifndef S_ISCHR
- #define S_ISCHR(mode) (mode&_S_IFCHR)
- #endif
- #ifndef S_ISBLK
- #define S_ISBLK(mode) (0)
- #endif
-#endif
-/*
-** Convert the inode protection mode to a string.
-*/
-#ifdef _WIN32
-static const char *mode2string (unsigned short mode) {
-#else
-static const char *mode2string (mode_t mode) {
-#endif
- if ( S_ISREG(mode) )
- return "file";
- else if ( S_ISDIR(mode) )
- return "directory";
- else if ( S_ISLNK(mode) )
- return "link";
- else if ( S_ISSOCK(mode) )
- return "socket";
- else if ( S_ISFIFO(mode) )
- return "named pipe";
- else if ( S_ISCHR(mode) )
- return "char device";
- else if ( S_ISBLK(mode) )
- return "block device";
- else
- return "other";
-}
-
-
-/*
-** Set access time and modification values for a file.
-** @param #1 File path.
-** @param #2 Access time in seconds, current time is used if missing.
-** @param #3 Modification time in seconds, access time is used if missing.
-*/
-static int file_utime (lua_State *L) {
- const char *file = luaL_checkstring(L, 1);
- struct utimbuf utb, *buf;
-
- if (lua_gettop (L) == 1) /* set to current date/time */
- buf = NULL;
- else {
- utb.actime = (time_t) luaL_optnumber(L, 2, 0);
- utb.modtime = (time_t) luaL_optinteger(L, 3, utb.actime);
- buf = &utb;
- }
-
- return pushresult(L, utime(file, buf), NULL);
-}
-
-
-/* inode protection mode */
-static void push_st_mode (lua_State *L, STAT_STRUCT *info) {
- lua_pushstring (L, mode2string (info->st_mode));
-}
-/* device inode resides on */
-static void push_st_dev (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer) info->st_dev);
-}
-/* inode's number */
-static void push_st_ino (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer) info->st_ino);
-}
-/* number of hard links to the file */
-static void push_st_nlink (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer)info->st_nlink);
-}
-/* user-id of owner */
-static void push_st_uid (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer)info->st_uid);
-}
-/* group-id of owner */
-static void push_st_gid (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer)info->st_gid);
-}
-/* device type, for special file inode */
-static void push_st_rdev (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer) info->st_rdev);
-}
-/* time of last access */
-static void push_st_atime (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer) info->st_atime);
-}
-/* time of last data modification */
-static void push_st_mtime (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer) info->st_mtime);
-}
-/* time of last file status change */
-static void push_st_ctime (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer) info->st_ctime);
-}
-/* file size, in bytes */
-static void push_st_size (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer)info->st_size);
-}
-#ifndef _WIN32
-/* blocks allocated for file */
-static void push_st_blocks (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer)info->st_blocks);
-}
-/* optimal file system I/O blocksize */
-static void push_st_blksize (lua_State *L, STAT_STRUCT *info) {
- lua_pushinteger (L, (lua_Integer)info->st_blksize);
-}
-#endif
-
- /*
-** Convert the inode protection mode to a permission list.
-*/
-
-#ifdef _WIN32
-static const char *perm2string (unsigned short mode) {
- static char perms[10] = "---------";
- int i;
- for (i=0;i<9;i++) perms[i]='-';
- if (mode & _S_IREAD)
- { perms[0] = 'r'; perms[3] = 'r'; perms[6] = 'r'; }
- if (mode & _S_IWRITE)
- { perms[1] = 'w'; perms[4] = 'w'; perms[7] = 'w'; }
- if (mode & _S_IEXEC)
- { perms[2] = 'x'; perms[5] = 'x'; perms[8] = 'x'; }
- return perms;
-}
-#else
-static const char *perm2string (mode_t mode) {
- static char perms[10] = "---------";
- int i;
- for (i=0;i<9;i++) perms[i]='-';
- if (mode & S_IRUSR) perms[0] = 'r';
- if (mode & S_IWUSR) perms[1] = 'w';
- if (mode & S_IXUSR) perms[2] = 'x';
- if (mode & S_IRGRP) perms[3] = 'r';
- if (mode & S_IWGRP) perms[4] = 'w';
- if (mode & S_IXGRP) perms[5] = 'x';
- if (mode & S_IROTH) perms[6] = 'r';
- if (mode & S_IWOTH) perms[7] = 'w';
- if (mode & S_IXOTH) perms[8] = 'x';
- return perms;
-}
-#endif
-
-/* permssions string */
-static void push_st_perm (lua_State *L, STAT_STRUCT *info) {
- lua_pushstring (L, perm2string (info->st_mode));
-}
-
-typedef void (*_push_function) (lua_State *L, STAT_STRUCT *info);
-
-struct _stat_members {
- const char *name;
- _push_function push;
-};
-
-struct _stat_members members[] = {
- { "mode", push_st_mode },
- { "dev", push_st_dev },
- { "ino", push_st_ino },
- { "nlink", push_st_nlink },
- { "uid", push_st_uid },
- { "gid", push_st_gid },
- { "rdev", push_st_rdev },
- { "access", push_st_atime },
- { "modification", push_st_mtime },
- { "change", push_st_ctime },
- { "size", push_st_size },
- { "permissions", push_st_perm },
-#ifndef _WIN32
- { "blocks", push_st_blocks },
- { "blksize", push_st_blksize },
-#endif
- { NULL, NULL }
-};
-
-/*
-** Get file or symbolic link information
-*/
-static int _file_info_ (lua_State *L, int (*st)(const char*, STAT_STRUCT*)) {
- STAT_STRUCT info;
- const char *file = luaL_checkstring (L, 1);
- int i;
-
- if (st(file, &info)) {
- lua_pushnil(L);
- lua_pushfstring(L, "cannot obtain information from file '%s': %s", file, strerror(errno));
- lua_pushinteger(L, errno);
- return 3;
- }
- if (lua_isstring (L, 2)) {
- const char *member = lua_tostring (L, 2);
- for (i = 0; members[i].name; i++) {
- if (strcmp(members[i].name, member) == 0) {
- /* push member value and return */
- members[i].push (L, &info);
- return 1;
- }
- }
- /* member not found */
- return luaL_error(L, "invalid attribute name '%s'", member);
- }
- /* creates a table if none is given, removes extra arguments */
- lua_settop(L, 2);
- if (!lua_istable (L, 2)) {
- lua_newtable (L);
- }
- /* stores all members in table on top of the stack */
- for (i = 0; members[i].name; i++) {
- lua_pushstring (L, members[i].name);
- members[i].push (L, &info);
- lua_rawset (L, -3);
- }
- return 1;
-}
-
-
-/*
-** Get file information using stat.
-*/
-static int file_info (lua_State *L) {
- return _file_info_ (L, STAT_FUNC);
-}
-
-
-/*
-** Push the symlink target to the top of the stack.
-** Assumes the file name is at position 1 of the stack.
-** Returns 1 if successful (with the target on top of the stack),
-** 0 on failure (with stack unchanged, and errno set).
-*/
-static int push_link_target(lua_State *L) {
-#ifdef _WIN32
- errno = ENOSYS;
- return 0;
-#else
- const char *file = luaL_checkstring(L, 1);
- char *target = NULL;
- int tsize, size = 256; /* size = initial buffer capacity */
- while (1) {
- target = realloc(target, size);
- if (!target) /* failed to allocate */
- return 0;
- tsize = readlink(file, target, size);
- if (tsize < 0) { /* a readlink() error occurred */
- free(target);
- return 0;
- }
- if (tsize < size)
- break;
- /* possibly truncated readlink() result, double size and retry */
- size *= 2;
- }
- target[tsize] = '\0';
- lua_pushlstring(L, target, tsize);
- free(target);
- return 1;
-#endif
-}
-
-/*
-** Get symbolic link information using lstat.
-*/
-static int link_info (lua_State *L) {
- int ret;
- if (lua_isstring (L, 2) && (strcmp(lua_tostring(L, 2), "target") == 0)) {
- int ok = push_link_target(L);
- return ok ? 1 : pusherror(L, "could not obtain link target");
- }
- ret = _file_info_ (L, LSTAT_FUNC);
- if (ret == 1 && lua_type(L, -1) == LUA_TTABLE) {
- int ok = push_link_target(L);
- if (ok) {
- lua_setfield(L, -2, "target");
- }
- }
- return ret;
-}
-
-
-/*
-** Assumes the table is on top of the stack.
-*/
-static void set_info (lua_State *L) {
- lua_pushliteral(L, "Copyright (C) 2003-2017 Kepler Project");
- lua_setfield(L, -2, "_COPYRIGHT");
- lua_pushliteral(L, "LuaFileSystem is a Lua library developed to complement the set of functions related to file systems offered by the standard Lua distribution");
- lua_setfield(L, -2, "_DESCRIPTION");
- lua_pushliteral(L, "LuaFileSystem " LFS_VERSION);
- lua_setfield(L, -2, "_VERSION");
-}
-
-
-static const struct luaL_Reg fslib[] = {
- {"attributes", file_info},
- {"chdir", change_dir},
- {"currentdir", get_dir},
- {"dir", dir_iter_factory},
- {"link", make_link},
- {"lock", file_lock},
- {"mkdir", make_dir},
- {"rmdir", remove_dir},
- {"symlinkattributes", link_info},
- {"setmode", lfs_f_setmode},
- {"touch", file_utime},
- {"unlock", file_unlock},
- {"lock_dir", lfs_lock_dir},
- {NULL, NULL},
-};
-
-LFS_EXPORT int luaopen_lfs (lua_State *L) {
- dir_create_meta (L);
- lock_create_meta (L);
- new_lib (L, fslib);
- lua_pushvalue(L, -1);
- lua_setglobal(L, LFS_LIBNAME);
- set_info (L);
- return 1;
-}