TTYNAME
Set $y to tty name (obsolete) Debug with confENVDEF
The $y defined
macro ($y on page 852) is
intended to hold as its value the base name of the
controlling tty device (if
there is one). On BSD-derived systems, this is a
name such as the following, but with the /dev/ prefix
removed:
/dev/tty04
Defining TTYNAME enables sendmail
to put this information into $y:
APPENDDEF(`confENVDEF', `-DTTYNAME')
Note that TTYNAME is useful only for debugging
sendmail. The
sendmail program does not
itself use $y for
anything. Also note that defining TTYNAME requires
that your system support the
ttyname(2) system call. If
you are running a precompiled version of
sendmail, you can determine
whether TTYNAME was defined by sending mail with the
-d35.9
debugging switch (-d35.9 on page
563) and watching for $y to be defined. You can tell because
this line will be printed:
define(y as ttyp1)
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