PR_SET_KEEPCAPS(2const) — Linux manual page

PR_SET_KEEPCAPS(2const)                          PR_SET_KEEPCAPS(2const)

NAME

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

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

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

       int prctl(PR_SET_KEEPCAPS, long state);

DESCRIPTION

       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

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

ERRORS

       EINVAL state is not a valid value.

       EPERM  The caller's SECBIT_KEEP_CAPS_LOCKED flag is set (see
              capabilities(7)).

STANDARDS

       Linux.

HISTORY

       Linux 2.2.18.

SEE ALSO

       prctl(2), PR_GET_KEEPCAPS(2const)

COLOPHON

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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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