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CURLOPT_TIMEOUT default is 1 hour (on TFTP) #6774

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Togtja opened this issue Mar 22, 2021 · 1 comment
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CURLOPT_TIMEOUT default is 1 hour (on TFTP) #6774

Togtja opened this issue Mar 22, 2021 · 1 comment
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@bagder
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@Togtja
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@Togtja Togtja commented Mar 22, 2021

I did this

I used libcurl to download over a very slow (but stable) TFTP link, and it keeps timing out after 3600 seconds aka 1 hour.
Then I set the option to be 0 curl_easy_setopt(curl, CURLOPT_TIMEOUT, 0L); it still times out after 3600 seconds.
So I thought it might have to do with the server timing out after 1 hour, but when setting the CURLOPT_TIMEOUT to 4000, it times out after 4000 seconds.

I wish to timeout using the stability of the connection aka CURLOPT_LOW_SPEED_LIMIT and CURLOPT_LOW_SPEED_TIME, both of which are also set

I expected the following

According to CURLOPT_TIMEOUT and CURLOPT_TIMEOUT_MS documentation, the default should be 0 and if it is 0 it should never time out

curl/libcurl version

curl 7.75.0 (Linux) libcurl/7.75.0 OpenSSL/1.1.1g zlib/1.2.11 libssh2/1.9.0_DEV
Release-Date: 2021-02-03
Protocols: dict file ftp ftps gopher gophers http https imap imaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS HTTPS-proxy IPv6 Largefile libz NTLM SSL UnixSockets
I also ran this on 7.74.0, same issues

operating system

Linux tomas-ubuntu 5.4.0-66-generic #74-Ubuntu SMP Wed Jan 27 22:54:38 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
@bagder bagder added the TFTP label Mar 22, 2021
@bagder bagder self-assigned this Mar 22, 2021
bagder added a commit that referenced this issue Mar 22, 2021
@bagder
tftp: remove the 3600 second default timeout
a084a21 
... it was never meant to be there.

Reported-by: Tomas Berger
Fixes #6774
Closes #[fill in]
@bagder bagder mentioned this issue Mar 22, 2021
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@bagder bagder closed this as completed in d3d90ad Mar 22, 2021
@gvollant
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@gvollant gvollant commented Mar 23, 2021

#6774 / #6776 introduced windows warning, fix on #6779

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tftp: remove the 3600 second default timeout curl/curl
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@bagder @gvollant @Togtja