bug in tty driver?
Ron Williams
ronald at hcrvx1.UUCP
Sat Sep 28 12:35:11 AEST 1985
Description:
The following combination of events seems to cause reads of a tty to return
EOF (VAX System V, Rel 2.0, Version 2; but may apply to your system as well):
1) type a character, then backspace
2) have your terminal set into raw mode, then back to canonical mode
This problem arises (for example), if I type vnews<CR>, then n^H, and vnews
decides I have no news.
Prove it:
Place the following text in a file called "foo".
sleep 10
: remember previous settings
x=`stty -g`
stty raw
stty $x
Now type:
sh foo<CR>
x^H<no CR>
After 10 seconds, your shell will exit. This applies to both the tty driver
and the sxt driver.
Ron Williams
utzoo!hcrvax!hcrvx1!ronald
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