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