unlink.c File Reference

Removing a name by its path: unlink() and rmdir(). More...

#include <core/system.h>
#include <fs/vfs.h>

Go to the source code of this file.

Functions
static int	vfs_remove (const char *path, struct uio *uio, int rmdir)
	Removes the entry at a path, which must be an empty directory if rmdir is set, and anything but a directory otherwise.
int	vfs_unlink (const char *path, struct uio *uio)
	Removes the name of a file (not a directory) at a path.
int	vfs_rmdir (const char *path, struct uio *uio)
	Removes an empty directory at a path.

Detailed Description

Removing a name by its path: unlink() and rmdir().

Definition in file unlink.c.

Function Documentation

vfs_remove()

int vfs_remove ( const char * path, struct uio * uio, int rmdir )

static

Removes the entry at a path, which must be an empty directory if rmdir is set, and anything but a directory otherwise.

The caller needs write and search permission on the directory it's in.

Definition at line 11 of file unlink.c.

References kfree(), vnode::mode, NULL, vfs_access(), vfs_close(), vfs_dir_empty(), vfs_finddir(), vfs_lookup_parent(), vfs_remove(), vfs_vget(), vfs_vunlink(), VFS_W, and VFS_X.

Referenced by vfs_remove(), vfs_rmdir(), and vfs_unlink().

vfs_rmdir()

int vfs_rmdir	(	const char *	path,
		struct uio *	uio )

Removes an empty directory at a path.

Parameters

path	the path
uio	who is asking

Returns

0, -ENOTDIR, -ENOTEMPTY, or another negative errno

Definition at line 74 of file unlink.c.

References vfs_remove(), and vfs_rmdir().

Referenced by do_unlinkat(), and vfs_rmdir().

vfs_unlink()

int vfs_unlink	(	const char *	path,
		struct uio *	uio )

Removes the name of a file (not a directory) at a path.

The file goes when its last name is removed and nothing has it open.

Parameters

path	the path
uio	who is asking

Returns

0, -EISDIR for a directory, or another negative errno

Definition at line 62 of file unlink.c.

References vfs_remove(), and vfs_unlink().

Referenced by do_unlinkat(), socket_unix_bind(), vfs_symlink(), and vfs_unlink().