audit_getloginuid - Get a program's login session id value
This function returns the task's session id attribute.
This function returns the session id value if it was set. It will return a -1 if
the session id is unset. However, since uint32_t is an unsigned type, you will
see the converted value instead of -1.
This function returns -2 on failure. Additionally, in the event of a real error,
errno would be set. The function can set errno based on failures of open,
read, or strtoul.