Demo bacwi [ip]:[port]

[Tim G]

I think the demo bacwi program is bugged. The demo program invoked as:

$ bacwi 10.0.0.2:47808

per Wireshark, sends a "whois 10 10" packet to the network broadcast (10.0.255.255 in my case), as opposed to what I expected: a unicast packet to the IP with no instance ID specified.

This runs counter to the commad line help for the command, which says bacwi [ip]:[port] should work.

Am I misreading something? Is it bugged?

Newb analysis: I'm seeing that argv[1] is strtol'd straight away in the function that tries to parse the IP argument, and I get the impression this obliterates the IP. Throwing debug printf's into the code makes me wonder if it necessarily gets that far anyway.

[Steve Karg]

The demo bacwi application in the 0.8.x branch seems to have a problem handlng the unicast form with an IP address, so it is indeed bugged.

The demo bacwi application in trunk/bacnet-stack/ handles the arguments this way:

    printf("Usage: %s", filename);
    printf(" [device-instance-min [device-instance-max]]\n");
    printf("       [--dnet][--dadr][--mac]\n");
    printf("       [--version][--help]\n");

My preference is to migrate the demo code from trunk/bacnet-stack into the 0.8.x branch rather than patching the broken argument handling. Would the demo bacwi in SVN from trunk/bacnet-stack work for you?

[Tim G]

Yes, that works quite nicely, thanks. I hadn't realized the trunk was the best way to go.