FYI the same problem exists with 7.10.5. I had problems building the
latest code out of cvs.

                                                                                                                                    
                      RBramante_at_on.com
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                      ceforge.net Subject: curl_easy_perform hangs on 7.9.8
                                                                                                                                    
                                                                                                                                    
                      05/28/2003 02:41 PM
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                      curl-library
                                                                                                                                    
                                                                                                                                    

I just hit this weird condition with 7.9.8. I haven't tried it with the
latest yet, and it's not clear to me if the problem is curl vs. with the
server response header. Any thoughts?

Basically, I've started to hit a scenario where curl hangs until its IO
timeout if the server responds with something like the following:

HTTP/1.1 400 Bad Request
Content-Type: text/html
Date: Wed, 28 May 2003 18:37:02 GMT
Connection: close
Server: Apache Tomcat/4.0.3 (HTTP/1.1 Connector)

eventually perform will return 28 "Operation timed out with 0 out of -1
bytes received"

My guess is that because the response header has no content-length (or
specifiy chunked encoding) and has no data that the read loop which must
get initialized to -1 does not know to quit until it timesout. However,
the header does have "Connection: close" set, and I see that in the header
parsing curl sets a bit to signify this so perhaps the fix is to have the
read loop check for this as well. (Or maybe just reset the expected length
to 0 if we've parsed the whole header and not found a Content-Length)

I'll try to pull the latest from CVS tomorrow and test it if necessary.

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Received on 2003-05-29