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telnet: fixed size negotiation order

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This commit is contained in:
Eugene Pankov
2021-08-15 19:58:28 +02:00
parent c4490717c0
commit af174933d6
1 changed files with 9 additions and 1 deletions
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10
tabby-telnet/src/session.ts
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@@ -170,7 +170,7 @@ export class TelnetSession extends BaseSession {
} }
if (command === TelnetCommands.DO) { if (command === TelnetCommands.DO) {
if (option === TelnetOptions.NEGO_WINDOW_SIZE) { if (option === TelnetOptions.NEGO_WINDOW_SIZE) {
this.resize(0, 0) this.emitSize()
} else if (option === TelnetOptions.ECHO) { } else if (option === TelnetOptions.ECHO) {
this.echoEnabled = true this.echoEnabled = true
this.emitTelnet(TelnetCommands.WILL, option) this.emitTelnet(TelnetCommands.WILL, option)
@@ -210,10 +210,18 @@ export class TelnetSession extends BaseSession {
this.lastHeight = h this.lastHeight = h
} }
if (this.lastWidth && this.lastHeight && this.telnetProtocol) { if (this.lastWidth && this.lastHeight && this.telnetProtocol) {
this.emitSize()
}
}
private emitSize () {
if (this.lastWidth && this.lastHeight) {
this.emitTelnetSuboption(TelnetOptions.NEGO_WINDOW_SIZE, Buffer.from([ this.emitTelnetSuboption(TelnetOptions.NEGO_WINDOW_SIZE, Buffer.from([
this.lastWidth >> 8, this.lastWidth & 0xff, this.lastWidth >> 8, this.lastWidth & 0xff,
this.lastHeight >> 8, this.lastHeight & 0xff, this.lastHeight >> 8, this.lastHeight & 0xff,
])) ]))
} else {
this.emitTelnet(TelnetCommands.WONT, TelnetOptions.NEGO_WINDOW_SIZE)
} }
} }