NS_GET_NSTYPE - discovering the namespace type

NAME  SYNOPSIS  DESCRIPTION  RETURN VALUE  STANDARDS  HISTORY  SEE ALSO 

---

NAME

NS_GET_NSTYPE − discovering the namespace type

SYNOPSIS

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

int ioctl(int fd, NS_GET_NSTYPE);

DESCRIPTION

The NS_GET_NSTYPE operation can be used to discover the type of namespace referred to by the file descriptor fd.

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

RETURN VALUE

On success, the return value is one of the CLONE_NEW* values that can be specified to clone(2) or unshare(2) in order to create a namespace.

On error, −1 is returned, and errno is set to indicate the error.

STANDARDS

Linux.

HISTORY

Linux 4.11.

SEE ALSO

ioctl(2), ioctl_nsfs(2)

---