[net.bugs.usg] di10 bug

gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>) (04/29/85)

In di10.c, function put1(), there is a check for centering
that invokes isalnum() on the argument to put1().
Unfortunately, the argument to put1() may be as large as
281, which is not a valid argument to isalnum().
The test should be changed to isascii(c)&&isalnum(c).