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TODO: telnet - exit immediately upon connection if stdin is /dev/null

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Suggested-by: Robin A. Meade
URL: https://curl.se/mail/archive-2022-04/0027.html
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Daniel Stenberg 2022-04-24 23:07:43 +02:00
parent 94ac2ca775
commit b82d879817
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@ -81,6 +81,7 @@
6.1 ditch stdin
6.2 ditch telnet-specific select
6.3 feature negotiation debug data
6.4 exit immediately upon connection if stdin is /dev/null
7. SMTP
7.1 Passing NOTIFY option to CURLOPT_MAIL_RCPT
@ -636,6 +637,13 @@
Add telnet feature negotiation data to the debug callback as header data.
6.4 exit immediately upon connection if stdin is /dev/null
If it did, curl could be used to probe if there's an server there listening
on a specific port. That is, the following command would exit immediately
after the connection is established with exit code 0:
curl -s --connect-timeout 2 telnet://example.com:80 </dev/null
7. SMTP