FreeNOS
unlink.cpp
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1 /*
2  * Copyright (C) 2015 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 <FileSystemClient.h>
19 #include "errno.h"
20 #include "limits.h"
21 #include "string.h"
22 #include "unistd.h"
23 
24 int unlink(const char *path)
25 {
26  const FileSystemClient filesystem;
27 
28  // Ask for the unlink
29  const FileSystem::Result result = filesystem.deleteFile(path);
30 
31  // Set error number
32  if (result == FileSystem::Success)
33  errno = ESUCCESS;
34  else
35  errno = EIO;
36 
37  // Done
38  return errno == ESUCCESS ? 0 : (off_t) -1;
39 }
off_t
sint off_t
Used for file sizes.
Definition: types.h:59
errno
C int errno
The lvalue errno is used by many functions to return error values.
string.h
FileSystemClient
FileSystemClient provides a simple interface to a FileSystemServer.
Definition: FileSystemClient.h:42
FileSystemClient::deleteFile
FileSystem::Result deleteFile(const char *path) const
Remove a file from the file system.
Definition: FileSystemClient.cpp:286
ESUCCESS
#define ESUCCESS
Reports a success operation.
Definition: errno.h:43
FileSystem::Success
@ Success
Definition: FileSystem.h:54
limits.h
unlink
int unlink(const char *path)
Remove a file from the filesystem.
Definition: unlink.cpp:24
EIO
#define EIO
I/O error.
Definition: errno.h:130
unistd.h
FileSystemClient.h
FileSystem::Result
Result
Result code for filesystem Actions.
Definition: FileSystem.h:52
errno.h