VOP_MKNOD(9) create a file, socket, fifo, device, directory or symlink

Other Alias

VOP_CREATE, VOP_MKDIR, VOP_SYMLINK

SYNOPSIS

In sys/param.h In sys/vnode.h In sys/namei.h Ft int Fn VOP_CREATE struct vnode *dvp struct vnode **vpp struct componentname *cnp struct vattr *vap Ft int Fn VOP_MKNOD struct vnode *dvp struct vnode **vpp struct componentname *cnp struct vattr *vap Ft int Fn VOP_MKDIR struct vnode *dvp struct vnode **vpp struct componentname *cnp struct vattr *vap Ft int Fn VOP_SYMLINK struct vnode *dvp struct vnode **vpp struct componentname *cnp struct vattr *vap char *target

DESCRIPTION

These entry points create a new file, socket, fifo, device, directory or symlink in a given directory.

The arguments are:

Fa dvp
The locked vnode of the directory.
Fa vpp
The address of a variable where the resulting locked vnode should be stored.
Fa cnp
The pathname component created.
Fa vap
The attributes that the new object should be created with.
Fa target
The pathname of the target of the symlink.

These entry points are called after VOP_LOOKUP9 when an object is being created.

LOCKS

The directory, Fa dvp will be locked on entry and must remain locked on return. If the call is successful, the new object will be returned locked.

RETURN VALUES

If successful, the vnode for the new object is placed in Fa *vpp and zero is returned. Otherwise, an appropriate error is returned.

ERRORS

Bq Er ENOSPC
The file system is full.
Bq Er EDQUOT
The user's file system space or inode quota would be exceeded.

HISTORY

The function appeared in BSD 4.3

AUTHORS

This manual page was written by An Doug Rabson .