/* *	HT Editor *	file.h * *	File system functions * *	Copyright (C) 1999-2004 Stefan Weyergraf (stefan@weyergraf.de) * *	This program is free software; you can redistribute it and/or modify *	it under the terms of the GNU General Public License version 2 as *	published by the Free Software Foundation. * *	This program is distributed in the hope that it will be useful, *	but WITHOUT ANY WARRANTY; without even the implied warranty of *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *	GNU General Public License for more details. * *	You should have received a copy of the GNU General Public License *	along with this program; if not, write to the Free Software *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */#ifndef __FILE_H__#define __FILE_H__/* Note: all functions only take absolute dir/filenames ! */#include "types.h"#include "fileofs.h"#include <dirent.h>#include <sys/types.h>#include <time.h>#ifdef PATH_MAX#define HT_NAME_MAX PATH_MAX	/* DJGPP at least */#else#ifdef MAXNAMLEN#define HT_NAME_MAX MAXNAMLEN	/* some BSD... */#else#ifdef NAME_MAX#define HT_NAME_MAX NAME_MAX	/* POSIX and friends... */#else#define HT_NAME_MAX 260		/* unknown... */#endif#endif#endif#define HT_S_IFREG         	0x1000#define HT_S_IFBLK         	0x2000#define HT_S_IFCHR         	0x3000#define HT_S_IFDIR         	0x4000#define HT_S_IFFIFO        	0x5000#define HT_S_IFLNK         	0x6000#define HT_S_IFSOCK        	0x7000#define HT_S_IFMT		0xf000#define HT_S_ISREG(m)		(((m) & HT_S_IFMT) == HT_S_IFREG)#define HT_S_ISBLK(m)		(((m) & HT_S_IFMT) == HT_S_IFBLK)#define HT_S_ISCHR(m)		(((m) & HT_S_IFMT) == HT_S_IFCHR)#define HT_S_ISDIR(m)		(((m) & HT_S_IFMT) == HT_S_IFDIR)#define HT_S_ISFIFO(m)		(((m) & HT_S_IFMT) == HT_S_IFFIFO)#define HT_S_ISLNK(m)		(((m) & HT_S_IFMT) == HT_S_IFLNK)#define HT_S_ISSOCK(m)		(((m) & HT_S_IFMT) == HT_S_IFSOCK)#define HT_S_IRUSR		0x0100#define HT_S_IRGRP		0x0020#define HT_S_IROTH		0x0004#define HT_S_IWUSR		0x0080#define HT_S_IWGRP		0x0010#define HT_S_IWOTH		0x0002#define HT_S_IXUSR		0x0040#define HT_S_IXGRP		0x0008#define HT_S_IXOTH		0x0001#define HT_S_IRWXU		(HT_S_IRUSR || HT_S_IWUSR || HT_S_IXUSR)#define HT_S_IRWXG		(HT_S_IRGRP || HT_S_IWGRP || HT_S_IXGRP)#define HT_S_IRWXO		(HT_S_IROTH || HT_S_IWOTH || HT_S_IXOTH)#define pstat_ctime		0x00000001#define pstat_mtime		0x00000002#define pstat_atime		0x00000004#define pstat_uid		0x00000008#define pstat_gid		0x00000010#define pstat_mode_usr		0x00000020#define pstat_mode_grp		0x00000040#define pstat_mode_oth		0x00000080#define pstat_mode_r          	0x00000100#define pstat_mode_w          	0x00000200#define pstat_mode_x         	0x00000400#define pstat_mode_type		0x00000800#define pstat_size		0x00001000#define pstat_inode		0x00002000#define pstat_cluster		0x00004000#define pstat_fsid		0x00008000#define pstat_desc		0x00010000#define pstat_mode_all		(pstat_mode_usr|pstat_mode_grp|pstat_mode_oth|pstat_mode_r|pstat_mode_w|pstat_mode_x|pstat_mode_type)struct pstat_t {	uint32	caps;	time_t	ctime;	time_t	mtime;	time_t	atime;	uint	uid;	uint	gid;	mode_t	mode;	// S_ISUID, S_ISGID, S_I[RWX](USR|GRP|OTH)	uint64	size;	union {		uint	inode;		uint	cluster;		uint	fsid;	};	char desc[32];};struct pfind_t {	const char *name;	pstat_t stat;	void *findstate;};typedef bool (*is_path_delim)(char c);/* File open mode */enum FileOpenMode {	FOM_EXISTS,	FOM_CREATE,	FOM_APPEND};/* Stream access mode */enum IOAccessModeAtomic {	IOAM_NULL = 0,	IOAM_READ = 1,	IOAM_WRITE = 2};typedef uint IOAccessMode;#define	SYS_SEEK_SET 1#define	SYS_SEEK_REL 2#define	SYS_SEEK_END 3// Add abstraction to files#define	SYS_FILE void/* system-independant (implementation in sys.cc) */int		sys_file_mode(int mode);int		sys_basename(char *result, const char *filename);char *		sys_dirname(char *path);char * 		sys_get_home_dir();int		sys_relname(char *result, const char *filename, const char *cwd);int		sys_common_canonicalize(char *result, const char *in_name, const char *cwd, is_path_delim delim);char *		sys_filename_suffix(const char *fn);int		sys_tmpfile_fd();/* system-dependant (implementation in $MYSYSTEM/ *.cc) */int		sys_canonicalize(char **result, const char *filename);int		sys_findclose(pfind_t &pfind);int		sys_findfirst(pfind_t &pfind, const char *dirname);int		sys_findnext(pfind_t &pfind);int		sys_pstat(pstat_t &s, const char *filename);int		sys_pstat_fd(pstat_t &s, int fd);int		sys_pstat_file(pstat_t &s, SYS_FILE *file);int		sys_truncate(const char *filename, FileOfs ofs);int		sys_truncate_fd(int fd, FileOfs ofs);int		sys_deletefile(const char *filename);bool		sys_is_path_delim(char c);int		sys_filename_cmp(const char *a, const char *b);bool		sys_filename_is_absolute(const char *filename);SYS_FILE *	sys_fopen(const char *filename, FileOpenMode openmode, IOAccessMode accessmode);SYS_FILE *	sys_freopen(const char *filename, FileOpenMode openmode, IOAccessMode accessmode, SYS_FILE *file);void		sys_fclose(SYS_FILE *file);int		sys_fread(SYS_FILE *file, byte *buf, int size);int		sys_fwrite(SYS_FILE *file, byte *buf, int size);int		sys_fseek(SYS_FILE *file, FileOfs newofs, int seekmode = SYS_SEEK_SET);FileOfs		sys_ftell(SYS_FILE *file);#endif /* __FILE_H__ */