Y-modem is not compatible with existed implementations (e.g. Windows HyperTerm). - Tera Term Ticket #34623 on SourceForge.JP

Hi,

I tried to use TeraTerm to send files via y-modem protocol.

Unfortunately, it was not working.
I have checked the code and found several issues:
1) First packet size with filename, timestamp, etc. should be 128 bytes, not 1024.
2) The same for the last zero-filled packet.
3) Unnecessary read loop in YSendPacket should be removed as sometimes it prevents successful file upload.

I have attached a patch which fixes all described problems and cleanup YSendPacket a little.

Thanks,
Max