mosquitto-users team mailing list archive

[Roger Light <roger@xxxxxxxxxx>]

Hi Sharon,

> I am trying to invoke mosquitto_pub with SSL.  I provide all the necessary certificates and the call is successful.
> However, the program prompts me to get PEM pass phrase.  I would like to provide that info in an argument or
> some other way that is not interactive.

It's not possible to do this with mosquitto_pub as it stands, but you
should be able to modify it to your needs quite easily. In the
mosquitto_tls_set() call you should provide a password callback
function:

 *  pw_callback - if keyfile is encrypted, set pw_callback to allow your client
 *                to pass the correct password for decryption. If set to NULL,
 *                the password must be entered on the command line.
 *                Your callback must write the password into "buf", which is
 *                "size" bytes long. The return value must be the length of the
 *                password. "userdata" will be set to the calling mosquitto
 *                instance.

How you get the password is then entirely up to you. I can take a look
at it in a few days if necessary.

Cheers,

Roger