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Commit 1688b979 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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Remove unused file

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src/extras/dirent.c deleted 100644 → 0
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/*
* dirent.c
*
* Derived from DIRLIB.C by Matt J. Weinstein
* This note appears in the DIRLIB.H
* DIRLIB.H by M. J. Weinstein Released to public domain 1-Jan-89
*
* Updated by Jeremy Bettis <jeremy@hksys.com>
* Significantly revised and rewinddir, seekdir and telldir added by Colin
* Peters <colin@fu.is.saga-u.ac.jp>
*
* $Revision: 1.6 $
* $Author: sam $
* $Date: 2002/11/13 20:51:04 $
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#ifndef UNDER_CE
# include <io.h>
# include <direct.h>
#else
# define FILENAME_MAX (260)
#endif
#define WIN32_LEAN_AND_MEAN
#include <windows.h> /* for GetFileAttributes */
#include <tchar.h>
#define SUFFIX "*"
#define SLASH "\\"
struct dirent
{
long d_ino; /* Always zero. */
unsigned short d_reclen; /* Always zero. */
unsigned short d_namlen; /* Length of name in d_name. */
char d_name[FILENAME_MAX]; /* File name. */
};
typedef struct
{
/* disk transfer area for this dir */
WIN32_FIND_DATA dd_dta;
/* dirent struct to return from dir (NOTE: this makes this thread
* safe as long as only one thread uses a particular DIR struct at
* a time) */
struct dirent dd_dir;
/* findnext handle */
HANDLE dd_handle;
/*
* Status of search:
* 0 = not started yet (next entry to read is first entry)
* -1 = off the end
* positive = 0 based index of next entry
*/
int dd_stat;
/* given path for dir with search pattern (struct is extended) */
char dd_name[1];
} DIR;
/*
* opendir
*
* Returns a pointer to a DIR structure appropriately filled in to begin
* searching a directory.
*/
DIR *
vlc_opendir (const CHAR *szPath)
{
DIR *nd;
unsigned int rc;
CHAR szFullPath[MAX_PATH];
errno = 0;
if (!szPath)
{
errno = EFAULT;
return (DIR *) 0;
}
if (szPath[0] == '\0')
{
errno = ENOTDIR;
return (DIR *) 0;
}
/* Attempt to determine if the given path really is a directory. */
#ifdef UNICODE
{
wchar_t szPathTmp[MAX_PATH];
mbstowcs( szPathTmp, szPath, MAX_PATH );
szPathTmp[MAX_PATH-1] = 0;
rc = GetFileAttributes (szPathTmp);
}
#else
rc = GetFileAttributes (szPath);
#endif
if (rc == (unsigned int)-1)
{
/* call GetLastError for more error info */
errno = ENOENT;
return (DIR *) 0;
}
if (!(rc & FILE_ATTRIBUTE_DIRECTORY))
{
/* Error, entry exists but not a directory. */
errno = ENOTDIR;
return (DIR *) 0;
}
/* Make an absolute pathname. */
#if defined( UNDER_CE )
if (szPath[0] == '\\' || szPath[0] == '/')
{
sprintf (szFullPath, "%s", szPath);
szFullPath[0] = '\\';
}
else
{
wchar_t szFullPathTmp[MAX_PATH];
if (GetModuleFileName( NULL, szFullPathTmp, MAX_PATH ) )
{
wcstombs( szFullPath, szFullPathTmp, MAX_PATH );
szFullPath[MAX_PATH-1] = 0;
}
else
{
/* FIXME: if I wasn't lazy, I'd check for overflows here. */
sprintf (szFullPath, "\\%s", szPath );
}
}
#else
_fullpath (szFullPath, szPath, MAX_PATH);
#endif
/* Allocate enough space to store DIR structure and the complete
* directory path given. */
nd = (DIR *) malloc (sizeof (DIR) + strlen (szFullPath) + sizeof (SLASH) +
sizeof (SUFFIX));
if (!nd)
{
/* Error, out of memory. */
errno = ENOMEM;
return (DIR *) 0;
}
/* Create the search expression. */
strcpy (nd->dd_name, szFullPath);
/* Add on a slash if the path does not end with one. */
if (nd->dd_name[0] != '\0' &&
nd->dd_name[strlen (nd->dd_name) - 1] != '/' &&
nd->dd_name[strlen (nd->dd_name) - 1] != '\\')
{
strcat (nd->dd_name, SLASH);
}
/* Add on the search pattern */
strcat (nd->dd_name, SUFFIX);
/* Initialize handle so that a premature closedir doesn't try
* to call FindClose on it. */
nd->dd_handle = INVALID_HANDLE_VALUE;
/* Initialize the status. */
nd->dd_stat = 0;
/* Initialize the dirent structure. ino and reclen are invalid under
* Win32, and name simply points at the appropriate part of the
* findfirst_t structure. */
nd->dd_dir.d_ino = 0;
nd->dd_dir.d_reclen = 0;
nd->dd_dir.d_namlen = 0;
memset (nd->dd_dir.d_name, 0, FILENAME_MAX);
return nd;
}
/*
* readdir
*
* Return a pointer to a dirent structure filled with the information on the
* next entry in the directory.
*/
struct dirent *
vlc_readdir (DIR * dirp)
{
errno = 0;
/* Check for valid DIR struct. */
if (!dirp)
{
errno = EFAULT;
return (struct dirent *) 0;
}
if (dirp->dd_stat < 0)
{
/* We have already returned all files in the directory
* (or the structure has an invalid dd_stat). */
return (struct dirent *) 0;
}
else if (dirp->dd_stat == 0)
{
#ifdef UNICODE
wchar_t dd_name[MAX_PATH];
mbstowcs( dd_name, dirp->dd_name, MAX_PATH );
dd_name[MAX_PATH-1] = 0;
#else
char *dd_name = dirp->dd_name;
#endif
/* We haven't started the search yet. */
/* Start the search */
dirp->dd_handle = FindFirstFile (dd_name, &(dirp->dd_dta));
if (dirp->dd_handle == INVALID_HANDLE_VALUE)
{
/* Whoops! Seems there are no files in that
* directory. */
dirp->dd_stat = -1;
}
else
{
dirp->dd_stat = 1;
}
}
else
{
/* Get the next search entry. */
if (!FindNextFile ((HANDLE)dirp->dd_handle, &(dirp->dd_dta)))
{
/* We are off the end or otherwise error. */
FindClose ((HANDLE)dirp->dd_handle);
dirp->dd_handle = INVALID_HANDLE_VALUE;
dirp->dd_stat = -1;
}
else
{
/* Update the status to indicate the correct
* number. */
dirp->dd_stat++;
}
}
if (dirp->dd_stat > 0)
{
/* Successfully got an entry */
#ifdef UNICODE
char d_name[MAX_PATH];
wcstombs( d_name, dirp->dd_dta.cFileName, MAX_PATH );
d_name[MAX_PATH-1] = 0;
#else
char *d_name = dirp->dd_dta.cFileName;
#endif
strcpy (dirp->dd_dir.d_name, d_name);
dirp->dd_dir.d_namlen = strlen (dirp->dd_dir.d_name);
return &dirp->dd_dir;
}
return (struct dirent *) 0;
}
/*
* closedir
*
* Frees up resources allocated by opendir.
*/
int
vlc_closedir (DIR * dirp)
{
int rc;
errno = 0;
rc = 0;
if (!dirp)
{
errno = EFAULT;
return -1;
}
if (dirp->dd_handle != INVALID_HANDLE_VALUE)
{
rc = FindClose ((HANDLE)dirp->dd_handle);
}
/* Delete the dir structure. */
free (dirp);
return rc;
}
/*
* rewinddir
*
* Return to the beginning of the directory "stream". We simply call findclose
* and then reset things like an opendir.
*/
void
vlc_rewinddir (DIR * dirp)
{
errno = 0;
if (!dirp)
{
errno = EFAULT;
return;
}
if (dirp->dd_handle != INVALID_HANDLE_VALUE)
{
FindClose ((HANDLE)dirp->dd_handle);
}
dirp->dd_handle = INVALID_HANDLE_VALUE;
dirp->dd_stat = 0;
}
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