Movatterモバイル変換

PR_SET_KEEPCAPS(2const) — Linux manual page

PR_SET_KEEPCAPS(2const)PR_SET_KEEPCAPS(2const)

NAME        top

       PR_SET_KEEPCAPS - set the state of the "keep capabilities" flag

LIBRARY        top

       Standard C library (libc,-lc)

SYNOPSIS        top

#include <linux/prctl.h>/* Definition ofPR_*constants */#include <sys/prctl.h>int prctl(PR_SET_KEEPCAPS, longstate);

DESCRIPTION        top

       Set the state of the calling thread's "keep capabilities" flag.       The effect of this flag is described incapabilities(7).state       must be either0L(clear the flag) or1L(set the flag).  The       "keep capabilities" value will be reset to 0 on subsequent calls       toexecve(2).

RETURN VALUE        top

       On success, 0 is returned.  On error, -1 is returned, anderrno is       set to indicate the error.

ERRORS        top

EINVALstate is not a valid value.EPERMThe caller'sSECBIT_KEEP_CAPS_LOCKEDflag is set (seecapabilities(7)).

STANDARDS        top

       Linux.

HISTORY        top

       Linux 2.2.18.

SEE ALSO        top

prctl(2),PR_GET_KEEPCAPS(2const)

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            2025-05-17PR_SET_KEEPCAPS(2const)

Pages that refer to this page:prctl(2), PR_GET_KEEPCAPS(2const)

HTML rendering created 2025-09-06 byMichael Kerrisk, author ofThe Linux Programming Interface. For details of in-depthLinux/UNIX system programming training courses that I teach, lookhere. Hosting byjambit GmbH.