CVS commit: src/sys/dev/wscons

["matthew green" <mrg%netbsd.org@localhost>]

Module Name:    src
Committed By:   mrg
Date:           Tue Sep 18 06:19:28 UTC 2018

Modified Files:
        src/sys/dev/wscons: wsdisplay.c wskbd.c

Log Message:
fix wsdisplay/wskbd and cngetc() return value issues:
- return -1 for error / no character
- allow 0 as a character

cngetc() itself considers any value >= 0 valid, and this matches
the usage in other drivers that return -1 for "not data", vs
polling until something arrives.

removes ^G from spewing out the askname/etc prompts when no key
has been pressed (these come from cngetsn(), ignoring unknown
non printable characters.)

from @skrll with help from @mlelstv.


To generate a diff of this commit:
cvs rdiff -u -r1.145 -r1.146 src/sys/dev/wscons/wsdisplay.c
cvs rdiff -u -r1.141 -r1.142 src/sys/dev/wscons/wskbd.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.