Is there an easy way to determine the SMS server status i.e. no errors, processing files as normal?

I am trying to determine the server status from a c++ application to detect if the modem has stopped responding (a hangover from an earlier post "Modem Registration Delay Parameter").

Cheers,
Paul.

Status monitor produces a file which tells what modems are doing.

Global settings in smsd.conf:


The result is for example:

# cat /var/spool/sms/stats/status
Status:	17-08-02 19:59:14,	i---------------------------------------------------------------
GSM1:	17-08-02 19:59:08,	Idle,		24563,	0,	74,	ssi: -73 dBm (Excellent)

The status in the first line can be:

s = sending
r = receiving (or checking received SM)
i = idle
b = blocked (after multiple errors)
t = trouble
- = not configured