>> These seem to belong in SRFI 205 rather than ProcessesCowan:
>>
>> (open-control-tty /tty-name [flags]/) ---> /port/ (procedure)
>>
>> This procedure opens terminal device /tty-name/ as the process'
>> control terminal (see the termios man page for more information on
>> control terminals). The /tty-name/ argument is....
+1
The usual Unix term is "controlling terminal" - "controlling" instead of
"control". This is also the term POSIX uses:
<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap11.html#tag_11_01_03>.