POSIX Subroutine: Gets the terminal pathname.
Module: USE IFPOSIX
Syntax
CALL PXFTTYNAM (ifildes, s, ilen, ierror)
ifildes
(Input) INTEGER(4). The file descriptor associated with the terminal.
s
(Output) Character. The returned terminal pathname.
ilen
(Output) INTEGER(4). The length of the string stored in s.
ierror
(Output) INTEGER(4). The error status.
If successful, ierror is set to zero, otherwise, an error code.