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/****************************************************************************
Directory.h
This file contains the C definitions and declarations for the
Directory.c directory iteration code.
This code is intended to be used as a convenient, machine
independent interface to iterate through the contents of a
directory.
****************************************************************************/
/*
* Author:
* Brian Totty
* Department of Computer Science
* University Of Illinois at Urbana-Champaign
* 1304 West Springfield Avenue
* Urbana, IL 61801
*
* totty@cs.uiuc.edu
*
*/
#ifndef _FWF_DIRECTORY_H_
#define _FWF_DIRECTORY_H_
#include <stdio.h>
#include <string.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#if defined(SYSV) || defined(SVR4)
#define getwd(path) getcwd(path, MAXPATHLEN)
#endif
#ifndef NO_DIRENT
#include <dirent.h>
#else
#include <sys/dir.h>
#define dirent direct
#endif
#ifndef NAME_MAX /* was _SYS_NAME_MAX, but doesn't compile with `gcc -ansi' */
#ifndef MAXNAMLEN
#define MAX_NAME_LENGTH 1024 /* ettore@comm2000.it 03.14.97 */
#else
#define MAX_NAME_LENGTH MAXNAMLEN
#endif
#else
#define MAX_NAME_LENGTH NAME_MAX
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#define PERM_READ 4
#define PERM_WRITE 2
#define PERM_EXECUTE 1
#define F_TYPE_DIR 1
#define F_TYPE_FILE 2
#define F_TYPE_CHAR_SPECIAL 3
#define F_TYPE_BLOCK_SPECIAL 4
#define F_TYPE_SYM_LINK 5
#define F_TYPE_SOCKET 6
#define F_TYPE_FIFO 7
/*--------------------------------------------------------------------------*
D A T A T Y P E A C C E S S M A C R O S
*--------------------------------------------------------------------------*/
/* Directory: Directory Iterator */
#define DirectoryDir(dp) ((dp)->filep)
#define DirectoryPath(dp) ((dp)->path)
/* FileInfo: Information About A File Or Link */
#define FileInfoProt(fi) ((fi)->protections)
#define FileInfoOrigMode(fi) ((fi)->orig_mode)
#define FileInfoUserID(fi) ((fi)->user_id)
#define FileInfoGroupID(fi) ((fi)->group_id)
#define FileInfoFileSize(fi) ((fi)->size)
#define FileInfoLastAccess(fi) ((fi)->last_access)
#define FileInfoLastModify(fi) ((fi)->last_modify)
#define FileInfoLastStatusChange(fi) ((fi)->last_status_change)
#define FIProt(fi) FileInfoProt(fi)
#define FIOrigMode(fi) FileInfoOrigMode(fi)
#define FIUserID(fi) FileInfoUserID(fi)
#define FIGroupID(fi) FileInfoGroupID(fi)
#define FIFileSize(fi) FileInfoFileSize(fi)
#define FILastAccess(fi) FileInfoLastAccess(fi)
#define FILastModify(fi) FileInfoLastModify(fi)
#define FILastStatusChange(fi) FileInfoLastStatusChange(fi)
/* FType: File Type Macros */
#define FTypeIsDir(ft) ((ft) == F_TYPE_DIR)
#define FTypeIsFile(ft) ((ft) == F_TYPE_FILE)
#define FTypeIsCharSpecial(ft) ((ft) == F_TYPE_CHAR_SPECIAL)
#define FTypeIsBlockSpecial(ft) ((ft) == F_TYPE_BLOCK_SPECIAL)
#define FTypeIsSymLink(ft) ((ft) == F_TYPE_SYM_LINK)
#define FTypeIsSocket(ft) ((ft) == F_TYPE_SOCKET)
#define FTypeIsFifo(ft) ((ft) == F_TYPE_FIFO)
/* DirEntry: Information About A Item In A Directory */
#define DirEntryFileName(fi) ((fi)->filename)
#define DirEntryType(fi) ((fi)->file_type)
#define DirEntrySelfInfo(fi) (&((fi)->self_info))
#define DirEntryActualInfo(fi) (&((fi)->actual_info))
#define DirEntryIsBrokenLink(fi) ((fi)->broken_link)
#define DirEntryIsDirectoryLink(fi) ((fi)->directory_link)
#define DirEntryIsDir(fi) (FTypeIsDir(DirEntryType(fi)))
#define DirEntryIsFile(fi) (FTypeIsFile(DirEntryType(fi)))
#define DirEntryIsCharSpecial(fi) (FTypeIsCharSpecial(DirEntryType(fi)))
#define DirEntryIsBlockSpecial(fi) (FTypeIsBlockSpecial(DirEntryType(fi)))
#define DirEntryIsSymLink(fi) (FTypeIsSymLink(DirEntryType(fi)))
#define DirEntryIsSocket(fi) (FTypeIsSocket(DirEntryType(fi)))
#define DirEntryIsFifo(fi) (FTypeIsFifo(DirEntryType(fi)))
#define DirEntryLeadsToDir(fi) (DirEntryIsDir(fi) || \
DirEntryIsDirectoryLink(fi))
#define DirEntryProt(d) FIProt(DirEntrySelfInfo(d))
#define DirEntryOrigMode(d) FIOrigMode(DirEntrySelfInfo(d))
#define DirEntryUserID(d) FIUserID(DirEntrySelfInfo(d))
#define DirEntryGroupID(d) FIGroupID(DirEntrySelfInfo(d))
#define DirEntryFileSize(d) FIFileSize(DirEntrySelfInfo(d))
#define DirEntryLastAccess(d) FILastAccess(DirEntrySelfInfo(d))
#define DirEntryLastModify(d) FILastModify(DirEntrySelfInfo(d))
#define DirEntryLastStatusChange(d) FILastStatusChange(DirEntrySelfInfo(d))
/*--------------------------------------------------------------------------*
D A T A T Y P E D E F I N I T I O N S
*--------------------------------------------------------------------------*/
/* Directory: Directory Iterator */
typedef struct
{
DIR *filep;
char path[MAXPATHLEN + 2];
} DIRECTORY;
typedef DIRECTORY Directory;
/* FileInfo: Information About A File Or Link */
typedef struct
{
short protections;
short orig_mode;
short user_id;
short group_id;
long size;
time_t last_access;
time_t last_modify;
time_t last_status_change;
} FILE_INFO;
typedef FILE_INFO FileInfo;
/* DirEntry: Information About A Item In A Directory */
typedef struct
{
char filename[MAX_NAME_LENGTH + 1];
short file_type;
short broken_link;
short directory_link;
FileInfo self_info;
FileInfo actual_info;
} DIR_ENTRY;
typedef DIR_ENTRY DirEntry;
/*--------------------------------------------------------------------------*
L O W L E V E L D I R E C T O R Y I N T E R F A C E
*--------------------------------------------------------------------------*/
#if (!NeedFunctionPrototypes)
int DirectoryOpen();
void DirectoryRestart();
void DirectoryClose();
long DirectoryTellPosition();
void DirectorySetPosition();
int DirectoryReadNextEntry();
char * DirectoryPathExpand();
void DirEntryDump();
#else
int DirectoryOpen(char *dir_name, Directory *dp);
void DirectoryRestart(Directory *dp);
void DirectoryClose(Directory *dp);
long DirectoryTellPosition(Directory *dp);
void DirectorySetPosition(Directory *dp, long int pos);
int DirectoryReadNextEntry(Directory *dp, DirEntry *de);
char * DirectoryPathExpand(char *old_path, char *new_path);
void DirEntryDump(FILE *fp, DirEntry *de);
#endif
#endif
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