The behaviour of the interfaces in this library is specified by the following Standards.
Table A-15. libutil Function Interfaces
| forkpty(GLIBC_2.0)[1] | login_tty(GLIBC_2.0)[1] | logwtmp(GLIBC_2.0)[1] |
| login(GLIBC_2.0)[1] | logout(GLIBC_2.0)[1] | openpty(GLIBC_2.0)[1] |