parse_interface() fails on "eth0" with Ubuntu 14.04

[GoogleCodeExporter]

if.c, line 520:

const int eai = getaddrinfo (ifname, NULL, &hints, &result);

On Ubuntu 14.04 under mysterious circumstances it returns -3 (EAI_AGAIN) with 
ifname = "eth0". DHCP was switched off, if it matters.
I suggest to add "case EAI_AGAIN:" under "case EAI_NONAME:":

#if defined(EAI_NODATA) && EAI_NODATA != EAI_NONAME
        case EAI_NODATA:
#endif
        case EAI_AGAIN:
        case EAI_NONAME:
            check_ifname = TRUE;
            break;

After this fix, ZeroMQ successfully connects to epgm://eth0;239.192.1.1.

Original issue reported on code.google.com by [email protected] on 4 Apr 2014 at 1:16