Client on Fedora 21: config option "auth-user-pass" works when in config file, but not on command line

[tarquinq]

Description of problem:
OpenVPN client supports automated password entry from a file. The specific option is "auth-user-pass".
When I specify this option inside a config file, it works, and VPN connects.
When I specify this option on the command line, it ignores it, and doesn't prompt for it.
I have run an strace on it, and when passed via command-line, the program _never_ checks for the file on-disk (which it does, successfully, when passed in via config file), so I'm guessing the command line parsing is wrong somehow.

Version-Release number of selected component (if applicable):
Fedora release : 21
OpenVPN Version : 2.3.7
Release : 1.fc21
Architecture : armv7hl
Source RPM : openvpn-2.3.7-1.fc21.src.rpm

How reproducible:
Always, I think. I've only got one username & password, and it does it every time for me!

Steps to Reproduce:

1. Create a file on-disk, 2 lines, username on 1st line & password on 2nd (bare config lines, just the two words on two lines)
2. Start Openvpn client with a config file containing the line "auth-user-pass /path/to/file.conf" - watch it succeed!
3. Start Openvpn client with "openvpn --auth-user-pass /path/to/file.conf" as one of the command-line options - watch it ignore the option and ask you for a password (and blast systemD ask-pass Wall messages!).

Actual results:
Password requested interactively from user on command line.

Expected results:
Password read from on-disk file and auto-connect.

Additional info:
No X, GUI, or NetworkManager? -controlled hilarity, this is just a headless command-line system.
First logged via Fedora Bugzilla, referred upstream; ​ https://bugzilla.redhat.com/show_bug.cgi?id=1238733

[Gert Döring]

that's an interesting one, as our config parser does not make a difference between "read file" and "read command line options"... need to go test...

[debbie10t]

I tested this on Fedora 24 with Openvpn 2.3.13 and 2.4_rc1 and --auth-user-pass /path/to/userpass.txt in a command line and it worked as expected. If the file is specified the user/pass are read from the file; If the file is not specified then the username and password are prompted for on the console.

[tct]

From: ​ https://bugzilla.redhat.com/show_bug.cgi?id=1238733#c5

Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug.