PR_CAP_AMBIENT_IS_SET(2const)                    PR_CAP_AMBIENT_IS_SET(2const)

NAME
       PR_CAP_AMBIENT_IS_SET - read the ambient capability set of the calling
       thread

LIBRARY
       Standard C library (libc, -lc)

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

       int prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, long cap, 0L, 0L);

DESCRIPTION
       This call returns 1 if the capability in cap is in the ambient
       capability set and 0 if it is not.

RETURN VALUE
       On success, this call returns the boolean value described above.  On
       error, -1 is returned, and errno is set to indicate the error.

ERRORS
       EINVAL cap does not specify a valid capability.

VERSIONS
       See PR_CAP_AMBIENT(2const).

STANDARDS
       Linux.

HISTORY
       Linux 4.3.

SEE ALSO
       prctl(2), PR_CAP_AMBIENT(2const), libcap(3)

Linux man-pages 6.10              2024-07-23     PR_CAP_AMBIENT_IS_SET(2const)