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PR_SET_KEEPCAPS(2const) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | HISTORY | SEE ALSO | COLOPHON 

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 of PR_* constants */
       #include <sys/prctl.h>

       int prctl(PR_SET_KEEPCAPS, long state);

DESCRIPTION         top

       Set the state of the calling thread's "keep capabilities" flag.
       The effect of this flag is described in capabilities(7).  state
       must be either 0L (clear the flag) or 1L (set the flag).  The
       "keep capabilities" value will be reset to 0 on subsequent calls
       to execve(2).

RETURN VALUE         top

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

ERRORS         top

       EINVAL state is not a valid value.

       EPERM  The caller's SECBIT_KEEP_CAPS_LOCKED flag is set (see
              capabilities(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 the man-pages (Linux kernel and C library
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Linux man-pages 6.9.1          2024-06-02        PR_SET_KEEPCAPS(2const)

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

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