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/*----------------------------------------------------------------------------*/
/*lib.h*/
/*----------------------------------------------------------------------------*/
/*Declarations of basic routines for filesystem manipulations*/
/*----------------------------------------------------------------------------*/
/*Based on the code of unionfs translator.*/
/*----------------------------------------------------------------------------*/
/*Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
Written by Sergiu Ivanov <unlimitedscolobb@gmail.com>.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or * (at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.*/
/*----------------------------------------------------------------------------*/
#ifndef __LIB_H__
#define __LIB_H__
/*----------------------------------------------------------------------------*/
#define __USE_FILE_OFFSET64
/*----------------------------------------------------------------------------*/
#include <hurd.h>
#include <dirent.h>
#include <stddef.h>
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*--------Macros--------------------------------------------------------------*/
/*Alignment of directory entries*/
#define DIRENT_ALIGN 4
/*----------------------------------------------------------------------------*/
/*The offset of the directory name in the directory entry structure*/
#define DIRENT_NAME_OFFS offsetof(struct dirent, d_name)
/*----------------------------------------------------------------------------*/
/*Computes the length of the structure before the name + the name + 0,
all padded to DIRENT_ALIGN*/
#define DIRENT_LEN(name_len)\
((DIRENT_NAME_OFFS + (name_len) + 1 + DIRENT_ALIGN - 1) &\
~(DIRENT_ALIGN - 1))
/*----------------------------------------------------------------------------*/
/*Deallocate the given port for the current task*/
#define PORT_DEALLOC(p) (mach_port_deallocate(mach_task_self(), (p)))
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*--------Functions-----------------------------------------------------------*/
/*Fetches directory entries for `dir`*/
error_t
dir_entries_get
(
file_t dir,
char ** dirent_data, /*the list of directory entries as returned
by dir_readdir*/
size_t * dirent_data_size, /*the size of `dirent_data`*/
struct dirent *** dirent_list /*the array of pointers to beginnings of
dirents in dirent_data*/
);
/*----------------------------------------------------------------------------*/
/*Lookup `name` under `dir` (or cwd, if `dir` is invalid)*/
error_t
file_lookup
(
file_t dir,
char * name,
int flags0, /*try to open with these flags first*/
int flags1, /*try to open with these flags, if `flags0` fail*/
int mode, /*if the file is to be created, create it with this mode*/
file_t * port, /*store the port to the looked up file here*/
io_statbuf_t * stat /*store the stat information here*/
);
/*----------------------------------------------------------------------------*/
#endif /*__LIB_H__*/
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