NAME

       ioctl_nsfs - ioctl() operations for Linux namespaces

SYNOPSIS

       #include <linux/nsfs.h>  /* Definition of NS_* constants */
       #include <sys/ioctl.h>

       int ioctl(int fd, unsigned long op, ...);

DESCRIPTION

   Discovering namespace relationships
       NS_GET_USERNS(2const)
       NS_GET_PARENT(2const)

   Discovering the namespace type
       NS_GET_NSTYPE(2const)

   Discovering the owner of a user namespace
       NS_GET_OWNER_UID(2const)

ERRORS

       ENOTTY fd does not refer to a /proc/pid/ns/* file.

STANDARDS

       Linux.

SEE ALSO

       ioctl(2), fstat(2), proc(5), namespaces(7)