PR_CAP_AMBIENT_RAISE - add to the ambient capability set of the calling thread

Description

The capability specified in cap is added to the ambient capability set. The specified capability must already be present in both the permitted and the inheritable sets of the process. This operation is not permitted if the SECBIT_NO_CAP_AMBIENT_RAISE securebit is set.

Errors

EINVALcap does not specify a valid capability. EPERM either the capability specified in cap is not present in the process's permitted and inheritable capability sets, or the PR_CAP_AMBIENT_LOWER securebit has been set.

History

Linux 4.3.

Library

Standard C library (libc, -lc)

Name

PR_CAP_AMBIENT_RAISE - add to the ambient capability set of the calling thread

Return Value

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

Standards

Linux.

Synopsis

#include<linux/prctl.h> /* Definition of PR_* constants */ #include<sys/prctl.h>intprctl(PR_CAP_AMBIENT,PR_CAP_AMBIENT_RAISE,longcap,0L,0L);