---
name: "lfc_chown"
section: "3"
platform: "linux"
package: "liblfc-dev"
version: "1.10.0-2+b3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/lfc_chown"
---

# lfc\_chown(3)

change owner and group of a LFC directory/file in the name server

## NAME

lfc\_chown - change owner and group of a LFC directory/file in the name server

## SYNOPSIS

**#include \<sys/types.h\>**\
 **#include "lfc\_api.h"**

**int lfc\_chown (const char \****path***,** **uid\_t** *new\_uid***,** **gid\_t** *new\_gid***)**

**int lfc\_lchown (const char \****path***,** **uid\_t** *new\_uid***,** **gid\_t** *new\_gid***)**

## DESCRIPTION

**lfc\_chown** sets the owner and the group of a LFC directory/file in the name server to the numeric values in *owner* and *group* respectively. If *owner* or *group* is specified as -1, **lfc\_chown()** does not change the corresponding ID of the file.

**lfc\_lchown** is identical to **lfc\_chown** except for symbolic links: it does not follow the link but changes the ownership of the link itself.

- *path*

  specifies the logical pathname relative to the current LFC directory or the full LFC pathname.

To change the owner ID, if the group ID does not change and if the caller and the new owner ID belong to that group, GRP\_ADMIN privilege is needed, otherwise the caller must have ADMIN privilege in the Cupv database. To change the group ID, the effective user ID of the process must match the owner ID of the file and the new group must be in the list of groups the caller belong to or the caller must have ADMIN privilege in the Cupv database.

## RETURN VALUE

This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, **serrno** is set appropriately.

## ERRORS

- **EPERM**

  The effective user ID does not match the owner of the file and  the caller does not have ADMIN privilege in the Cupv database.

- **ENOENT**

  The named file/directory does not exist or is a null pathname.

- **EACCES**

  Search permission is denied on a component of the *path* prefix.

- **EFAULT**

  *path* is a NULL pointer.

- **ENOTDIR**

  A component of *path* prefix is not a directory.

- **EINVAL**

  *new\_uid* or *new\_gid* is invalid.

- **ENAMETOOLONG**

  The length of *path* exceeds **CA\_MAXPATHLEN** or the length of a *path* component exceeds **CA\_MAXNAMELEN**.

- **SENOSHOST**

  Host unknown.

- **SENOSSERV**

  Service unknown.

- **SECOMERR**

  Communication error.

- **ENSNACT**

  Name server is not running or is being shutdown.

## SEE ALSO

**[Castor\_limits(4)](/Castor_limits/4.md)**, **[lfc\_chdir(3)](/lfc_chdir/3.md)**, **Cupvlist(1)**

## AUTHOR

**LCG Grid Deployment** Team