From 7cc00d9a832c42a330888aa5c11a2abad1bd5ac0 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 5 Aug 2013 23:49:53 +0200
Subject: FTP: when EPSV gets a 229 but fails to connect, retry with PASV

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
---
 tests/data/Makefile.am |  2 +-
 tests/data/test1233    | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 tests/data/test1233

(limited to 'tests')

diff --git a/tests/data/Makefile.am b/tests/data/Makefile.am
index 8e952115a..eaaf7eca2 100644
--- a/tests/data/Makefile.am
+++ b/tests/data/Makefile.am
@@ -93,7 +93,7 @@ test1200 test1201 test1202 test1203 test1204 test1205 test1206 test1207 \
 test1208 test1209 test1210 test1211 test1212 test1213 test1214 test1215 \
 test1216 test1217 test1218 test1219 \
 test1220 test1221 test1222 test1223 test1224 test1225 test1226 test1227 \
-test1228 test1229 test1230 test1231 test1232 \
+test1228 test1229 test1230 test1231 test1232 test1233 \
 \
 test1300 test1301 test1302 test1303 test1304 test1305 test1306 test1307 \
 test1308 test1309 test1310 test1311 test1312 test1313 test1314 test1315 \
diff --git a/tests/data/test1233 b/tests/data/test1233
new file mode 100644
index 000000000..caf0527f2
--- /dev/null
+++ b/tests/data/test1233
@@ -0,0 +1,46 @@
+<testcase>
+<info>
+<keywords>
+FTP
+</keywords>
+</info>
+
+# Server-side
+<reply>
+<servercmd>
+# Assuming there's nothing listening on port 1
+REPLY EPSV 229 Entering Passiv Mode (|||1|)
+</servercmd>
+<data>
+here are some bytes
+</data>
+</reply>
+
+# Client-side
+<client>
+<server>
+ftp
+</server>
+ <name>
+FTP failing to connect to EPSV port, switching to PASV
+ </name>
+ <command>
+ftp://%HOSTIP:%FTPPORT/1233
+</command>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+USER anonymous
+PASS ftp@example.com
+PWD
+EPSV
+PASV
+TYPE I
+SIZE 1233
+RETR 1233
+QUIT
+</protocol>
+</verify>
+</testcase>
-- 
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