BBS:      TELESC.NET.BR
Assunto:  src/syncterm/conn.c conn.h rlogin.c
De:       Deuc¨
Data:     Thu, 23 Apr 2026 18:36:00 -0700
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https://gitlab.synchro.net/main/sbbs/-/commit/f7b93b090d1f384beafdb6d2
Modified Files:
	src/syncterm/conn.c conn.h rlogin.c
Log Message:
SyncTERM: honor RFC 1282 TIOCFLUSH (0x02) OOB byte in rlogin

When the rlogin server sends the 0x02 urgent byte, it's signalling
(after a server-side interrupt) that any client output still queued
is stale and should be dropped.  Add a conn_buf_reset() helper that
clears a conn_buffer under its mutex and wakes any writer blocked on
free space, and call it on conn_outbuf from rlogin_handle_control().

Co-Authored-By: Claude Opus 4.7 (1M context) 
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