KEYCTL_CHOWN(3)
NAME
keyctl_chown - Change the ownership of a key
SYNOPSIS
#include <keyutils.h> long keyctl_chown(key_serial_t key, uid_t uid, gid_t gid);
DESCRIPTION
keyctl_chown() changes the user and group ownership details of a key.
A setting of -1 on either uid or gid will cause that setting to be
ignored.
A process that does not have the SysAdmin capability may not change a
key's UID or set the key's GID to a value that does not match the
process's GID or one of its group list.
The caller must have setattr permission on a key to be able change its
ownership.
RETURN VALUE
On success keyctl_chown() returns 0 . On error, the value -1 will be
returned and errno will have been set to an appropriate error.
ERRORS
ENOKEY The specified key does not exist.
- EKEYEXPIRED
- The specified key has expired.
- EKEYREVOKED
- The specified key has been revoked.
- EDQUOT Changing the UID to the one specified would run that UID out of
- quota.
- EACCES The key exists, but does not grant setattr permission to the
- calling process.
LINKING
This is a library function that can be found in libkeyutils. When linking, -lkeyutils should be specified to the linker.