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+++ This bug was initially created as a clone of Bug #1305970 +++

Description of problem:

With --disable-epsv, curl should not attempt to use EPSV mode no matter what. When the host name in URL is 'localhost' or 'localhost.localdomain', EPSV is not disabled. On the other hand, when 127.0.0.1 is used instead, --disable-epsv is respected.

Version-Release number of selected component (if applicable):
curl-7.29.0-25.el7.x86_64

Steps to reproduce:
# yum -y install vsftpd
# echo OK > /var/ftp/pub/test
# service vsftpd start
# curl -v --disable-epsv ftp://localhost/pub/test

Actual results:
> EPSV
* Connect data stream passively
< 229 Entering Extended Passive Mode (|||20246|).
*   Trying 127.0.0.1... connected

Expected results:
> PASV
* Connect data stream passively
< 227 Entering Passive Mode (127,0,0,1,251,224).
*   Trying 127.0.0.1... connected

upstream commit:

https://github.com/curl/curl/commit/curl-7_47_1-30-g4ef6b2d

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2016-2575.html