PR_CAP_AMBIENT_IS_SET2const
Read 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_IS_SET, long cap, 0L, 0L);
Library
Standard C library (libc, -lc)
Overview
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
Releases
2 releases since Debian 13 (Trixie); the text changed 1 time.