BBS:      TELESC.NET.BR
Assunto:  src/syncterm/CHANGES conn.c ssh.c
De:       Deuc¨
Data:     Wed, 20 May 2026 16:41:25 -0700
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https://gitlab.synchro.net/main/sbbs/-/commit/05048761b284b8a78a93decd
Modified Files:
	src/syncterm/CHANGES conn.c ssh.c
Log Message:
syncterm: pin SO_SNDBUF/SO_RCVBUF to 1 MiB on all TCP connections

ssh.c set SO_SNDBUF=1 MiB after connect but left SO_RCVBUF at the
kernel default, and the other TCP transports (telnet, telnets, rlogin,
raw) inherited Windows' ~8 KiB defaults for both directions.  A telnet
download on Windows therefore capped at roughly RCVBUF/RTT  about
400 KiB/s on a 20 ms link  regardless of how fast the server streamed.

Lift the buffer setup into conn_socket_connect() so every TCP transport
gets a 1 MiB baseline in both directions.  ssh_set_sftp_buffer_mode()
still dynamically drops SO_SNDBUF to 64 KiB during SFTP activity so
keystrokes don't queue behind bulk data; the connect-time 1 MiB is the
value it restores to.
n
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  mSynchronetn  hgVertrauen n hHome of Synchronet n gh[vert/cvs/bbs].synchro.net

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