PR_CAP_AMBIENT_RAISE2const
Add to the ambient capability set of the calling thread
Usage
#include <linux/prctl.h> /* Definition of PR_* constants */ #include <sys/prctl.h>
int prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, long cap, 0L, 0L);
Library
Standard C library (libc, -lc)
Overview
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.
Return value
On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error.
Errors
- EINVAL
-
cap 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_LOWERsecurebit has been set.
Versions
Releases
2 releases since Debian 13 (Trixie); the text changed 1 time.