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NS_GET_NSTYPE(2const) — Linux manual page

NS_GET_NSTYPE(2const)NS_GET_NSTYPE(2const)

NAME        top

       NS_GET_NSTYPE - discovering the namespace type

SYNOPSIS        top

#include <linux/nsfs.h>/* Definition ofNS_GET_NSTYPE*/#include <sys/ioctl.h>int ioctl(intfd, NS_GET_NSTYPE);

DESCRIPTION        top

       TheNS_GET_NSTYPEoperation can be used to discover the type of       namespace referred to by the file descriptorfd.fd refers to a/proc/pid/ns/* file.

RETURN VALUE        top

       On success, the return value is one of theCLONE_NEW*values that       can be specified toclone(2) orunshare(2) in order to create a       namespace.       On error, -1 is returned, anderrno is set to indicate the error.

STANDARDS        top

       Linux.

HISTORY        top

       Linux 4.11.

SEE ALSO        top

ioctl(2),ioctl_nsfs(2)

COLOPHON        top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17NS_GET_NSTYPE(2const)

Pages that refer to this page:ioctl_nsfs(2)

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