Ticket #37605

TELNET接続時、端末の高さ/幅が255の時に端末サイズがサーバに伝わらない

Open Date: 2017-10-26 18:50 Last Update: 2017-10-27 18:46

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Status:
Closed
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Priority:
5 - Medium
Severity:
5 - Medium
Resolution:
Fixed
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Details

TELNET 接続時、端末の幅または高さが 255 の時にサーバに端末サイズが伝わらない。

TELNET 接続時は TELNET WINDOW SIZE OPTION で伝える。

この時に送る 255(0xff) は IAC と同じで値である為、 0xff 0xff というように二つ続ける必要があるがこれを行っていない為。

from RFC 855 - TELNET OPTION SPECIFICATIONS:

Finally, if parameters in an option "subnegotiation" include a byte with a value of 255, it is necessary to double this byte in accordance the general TELNET rules.

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Ticket History (3/4 Histories)

2017-10-26 18:50 Updated by: doda
  • New Ticket "TELNET接続時、端末の高さ/幅が255の時に端末サイズがサーバに伝わらない" created
2017-10-26 19:12 Updated by: doda
  • Details Updated
2017-10-26 19:12 Updated by: doda
  • Resolution Update from None to Accepted
2017-10-27 18:46 Updated by: doda
  • Ticket Close date is changed to 2017-10-27 18:46
  • Status Update from Open to Closed
  • Resolution Update from Accepted to Fixed
Comment

r6963 で修正

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