26d88d6bb
Denys Vlasenko
2016-10-12
Subject
telnetd: add another handshake example in comments, no code changes
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networking/telnetd.c+5 -0
| @@ -154,6 +154,11 @@ safe_write_to_pty_decode_iac(struct tsession *ts) | |
| * Example: we get this from our own (bbox) telnet client: | |
| * read(5, "\377\374\1""\377\373\37""\377\372\37\0\262\0@\377\360""\377\375\1""\377\375\3"): | |
| * IAC WONT ECHO, IAC WILL NAWS, IAC SB NAWS <cols> <rows> IAC SE, IAC DO SGA | |
| + | * Another example (telnet-0.17 from old-netkit): |
| + | * read(4, "\377\375\3""\377\373\30""\377\373\37""\377\373 ""\377\373!""\377\373\"""\377\373'" |
| + | * "\377\375\5""\377\373#""\377\374\1""\377\372\37\0\257\0I\377\360""\377\375\1"): |
| + | * IAC DO SGA, IAC WILL TTYPE, IAC WILL NAWS, IAC WILL TSPEED, IAC WILL LFLOW, IAC WILL LINEMODE, IAC WILL NEW_ENVIRON, |
| + | * IAC DO STATUS, IAC WILL XDISPLOC, IAC WONT ECHO, IAC SB NAWS <cols> <rows> IAC SE, IAC DO ECHO |
| */ | |
| if (wr <= 1) { | |
| /* Only the single IAC byte is in the buffer, eat it | |