Re: Issue with Http redirect

On Fri, 12 Jun 2020, Amit .. via curl-library wrote:

> Its taking too much time to redirect to actual location which we are getting
> from the response header.

curl doesn't need any extra time to do a redirect, apart from a few cycles to
create the new URL to use...

> It seems that while redirecting from http to https socketcallback
> *(CURLMOPT_SOCKETFUNCTION)* close the socket and opens new socket with same
> socket id , due to which the it stuck at this point.

curl might close the socket after a transfer, yes. That's independent
redirects though.

When a socket has been closed (file descriptor really on *nix), that file
descriptor then becomes free and available for use again when creating a new
socket so there's no suprise that when curl needs a new socket for the next
request - then one the redirect takes you to - the socket gets created to use
the same file descriptor number as the socket that was just recently closed.

That's not a mistake, that's a pretty standard patttern.

That shouldn't be a reason for curl or your application to get stuck though.

> Could you please help me on this issue?

I can't reproduce. We have quite a lot of test cases doing redirects and they
work, even event-based. You need to provide more details about your particular
problem.

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