plucky (2) NS_GET_OWNER_UID.2const.gz

Provided by: manpages-dev_6.9.1-1_all bug

NAME
       NS_GET_OWNER_UID - discovering the owner of a user namespace


SYNOPSIS
       #include <linux/nsfs.h>  /* Definition of NS_GET_OWNER_UID */
       #include <sys/ioctl.h>

       int ioctl(int fd, NS_GET_OWNER_UID, uid_t *uid);


DESCRIPTION
       The  NS_GET_OWNER_UID  operation can be used to discover the owner user ID of a user namespace (i.e., the
       effective user ID of the process that created the user namespace).

       fd refers to a /proc/pid/ns/user file.

       The owner user ID is returned in the uid_t pointed to by the third argument.


RETURN VALUE
       On success, 0 is returned.  On error, -1 is returned, and errno is set to indicate the error.


ERRORS
       EINVAL fd does not refer to a user namespace.


STANDARDS
       Linux.


HISTORY
       Linux 4.11.


SEE ALSO
       ioctl(2), ioctl_nsfs(2)