PuTTY bug telnet-resize-iac

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summary: PuTTY doesn't correctly encode 255x255 NAWS messages
class: bug: This is clearly an actual problem we want fixed.
difficulty: fun: Just needs tuits, and not many of them.
present-in: 0.53
fixed-in: 2003-01-03 50fbac19eb167b026e2b06403fbe90399190f674 (0.54)

From Thomas Thurman:

| When the telnet option NAWS is enabled, and the width or height of the
| screen is exactly 255 characters, PuTTY fails to double up the 0xFF
| byte in the subnegotiation, as required by RFC1073.

(in telnet.c:telnet_size())

| Linux telnet servers don't seem to be fazed by this, but it crashed a
| Python telnet server I was testing it on.

SGT, 2003-01-02: Should now be fixed. And I disagree that Linux
telnet servers aren't fazed by it - the Debian 3.0 machine on my
desk certainly doesn't like it much!
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(last revision of this bug record was at 2016-12-27 11:40:22 +0000)