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FTP: when EPSV gets a 229 but fails to connect, retry with PASV

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This is a regression as this logic used to work. It isn't clear when it
broke, but I'm assuming in 7.28.0 when we went all-multi internally.

This likely never worked with the multi interface. As the failed
connection is detected once the multi state has reached DO_MORE, the
Curl_do_more() function was now expanded somewhat so that the
ftp_do_more() function can request to go "back" to the previous state
when it makes another attempt - using PASV.

Added test case 1233 to verify this fix. It has the little issue that it
assumes no service is listening/accepting connections on port 1...

Reported-by: byte_bucket in the #curl IRC channel
This commit is contained in:
Daniel Stenberg
2013-08-05 23:49:53 +02:00
parent 230e16dc03
commit 7cc00d9a83
7 changed files with 101 additions and 39 deletions
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4
lib/url.h
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@@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -37,7 +37,7 @@ CURLcode Curl_close(struct SessionHandle *data); /* opposite of curl_open() */
CURLcode Curl_connect(struct SessionHandle *, struct connectdata **,
bool *async, bool *protocol_connect);
CURLcode Curl_do(struct connectdata **, bool *done);
CURLcode Curl_do_more(struct connectdata *, bool *completed);
CURLcode Curl_do_more(struct connectdata *, int *completed);
CURLcode Curl_done(struct connectdata **, CURLcode, bool premature);
CURLcode Curl_disconnect(struct connectdata *, bool dead_connection);
CURLcode Curl_protocol_connect(struct connectdata *conn, bool *done);