ioctl_nsfs(2) System Calls Manual ioctl_nsfs(2)
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)
Linux man-pages 6.9.1 2024-06-14 ioctl_nsfs(2)
Generated by dwww version 1.16 on Mon Dec 8 23:56:50 CET 2025.