+++ This bug was initially created as a clone of Bug #1183547 +++

Description of problem:
The documentation of glfs_set_volfile_server() mentions that transport may be passed as a NULL value. However, this is not handled correctly and the function will return EINVAL.

Version-Release number of selected component (if applicable):
Current mainline, and older versions.

How reproducible:
100%

Steps to Reproduce:
1. pass transport=NULL to glfs_set_volfile_server()

Actual results:
glfs_set_volfile_server() returns an error (EINVAL).

Expected results:
Default values for transport should be used, and connecting to the volume should work.

--- Additional comment from Anand Avati on 2015-01-19 11:18:05 CET ---

REVIEW: http://review.gluster.org/9464 (gfapi: allow transport=NULL for set_volfile_server()) posted (#1) for review on master by Niels de Vos (ndevos)

--- Additional comment from Anand Avati on 2015-01-20 21:39:59 CET ---

COMMIT: http://review.gluster.org/9464 committed in master by Shyamsundar Ranganathan (srangana) 
------
commit cdb3fa6088957ed257bfe2c3af59a80033cb2cbb
Author: Niels de Vos <ndevos>
Date:   Mon Jan 19 11:17:20 2015 +0100

    gfapi: allow transport=NULL for set_volfile_server()
    
    Users of gfapi should not need to care about the supported transport
    methods, this is an advanced option. Simple use-cases for libgfapi
    should be able to pass NULL as transport, and the libraries should take
    care of connecting to the Gluster server(s) correctly.
    
    BUG: 1183547
    Change-Id: Id93f96a3d10ae9fb69d53192642145ba8deed863
    Signed-off-by: Niels de Vos <ndevos>
    Reviewed-on: http://review.gluster.org/9464
    Tested-by: Gluster Build System <jenkins.com>
    Reviewed-by: Kaleb KEITHLEY <kkeithle>
    Reviewed-by: Shyamsundar Ranganathan <srangana>