FreeNOS
readdir.cpp
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1 /*
2  * Copyright (C) 2009 Niek Linnenbank
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #include <Macros.h>
19 #include "dirent.h"
20 
21 struct dirent * readdir(DIR *dirp)
22 {
23  if (dirp->current < dirp->count)
24  {
25  return &dirp->buffer[dirp->current++];
26  }
27  else
28  {
29  return (struct dirent *) ZERO;
30  }
31 }
Macros.h
readdir
struct dirent * readdir(DIR *dirp)
Read a directory.
Definition: readdir.cpp:21
dirent.h
DIR::buffer
struct dirent * buffer
Input buffer.
Definition: dirent.h:100
dirent
Represents a directory entry.
Definition: dirent.h:64
DIR::count
Size count
Number of direct structures in the buffer.
Definition: dirent.h:106
DIR::current
Size current
Index of the current dirent.
Definition: dirent.h:103
DIR
A type representing a directory stream.
Definition: dirent.h:94
ZERO
#define ZERO
Zero value.
Definition: Macros.h:43