localHostAddress

> I haven't tried this in a while (previous computer), but I'm not able to get
> the address of my computer.
>
> NetNameResolver localHostAddress ==> a ByteArray(0 0 0 0)
>
> All the other NetNameResolver functions seem to be working fine, including
> giving it my address and having it lookup the name.
>
> This is MacOS 10.4 and I have tried in a Croquet 1.0 image and a much older
> image as well.
>
> I have a feeling this requires some sort of UNIX incantation, but I'm not
> sure what. Any ideas?
>
> Cheers,
> Bob
>  

>
> I haven't tried this in a while (previous computer), but I'm not  
> able to get
> the address of my computer.
>
> NetNameResolver localHostAddress ==> a ByteArray(0 0 0 0)
>
> All the other NetNameResolver functions seem to be working fine,  
> including
> giving it my address and having it lookup the name.
>
> This is MacOS 10.4 and I have tried in a Croquet 1.0 image and a  
> much older
> image as well.
>
> I have a feeling this requires some sort of UNIX incantation, but  
> I'm not
> sure what. Any ideas?
>
> Cheers,
> Bob
> --
> View this message in context: http://www.nabble.com/ 
> localHostAddress-tf4581383.html#a13078111
> Sent from the Squeak - Dev mailing list archive at Nabble.com.
>
>

> Let's see. First on os-x we just use the unix socket code so looking
> at the primitive we see
>
> EXPORT(sqInt) primitiveResolverLocalAddress(void) {
>         sqInt addr;
>         sqInt _return_value;
>
>         addr = sqResolverLocalAddress();
>
> which is
>
> sqInt sqResolverLocalAddress(void)              { return nameToAddr
> (localHostName); }
>
> which is
>
> /* answer the IP address for the given hostname */
>
> static int nameToAddr(char *hostName)
> {
>    struct hostent *he;
>
>    lastError= 0;                        /* ditto */
>    if ((he= gethostbyname(hostName)))
>      return ntohl(*(long *)(he->h_addr_list[0]));
>    lastError= h_errno;          /* and one more ditto */
>    return 0;
> }
>
>       The gethostbyname(), gethostbyname2() and gethostbyaddr()
> functions each
>       return a pointer to an object with the following structure
> describing an
>       internet host referenced by name or by address, respectively.
> This
>       structure contains either the information obtained from the
> name server,
>       named(8), or broken-out fields from a line in /etc/hosts.  If
> the local
>       name server is not running these routines do a lookup in /etc/
> hosts.
>
>       struct  hostent {
>               char    *h_name;        /* official name of host */
>               char    **h_aliases;    /* alias list */
>               int     h_addrtype;     /* host address type */
>               int     h_length;       /* length of address */
>               char    **h_addr_list;  /* list of addresses from name
> server */
>       };
>
>
> Now on this machine there are multiple network interfaces
>
> en0 is ethernetport
> en1 is 802.11n (wireless, active)
> en2 is Parallels virtual interface for Host-Guest
> en3 is Parallels virtual interface for NAT
>
> I'll note the machine is otter.local.
> If I ping say otter.local it says
>
> [otter:~] johnmci% ping Otter.local
> PING otter.local (10.37.129.2): 56 data bytes
> 64 bytes from 10.37.129.2: icmp_seq=0 ttl=64 time=0.034 ms
> 64 bytes from 10.37.129.2: icmp_seq=1 ttl=64 time=0.070 ms
> 64 bytes from 10.37.129.2: icmp_seq=2 ttl=64 time=0.064 ms
> 64 bytes from 10.37.129.2: icmp_seq=3 ttl=64 time=0.090 ms
>
> another try gave me
>
> [otter:~] johnmci% ping otter.local
> PING otter.local (192.168.1.130): 56 data bytes
> 64 bytes from 192.168.1.130: icmp_seq=0 ttl=64 time=0.024 ms
> 64 bytes from 192.168.1.130: icmp_seq=1 ttl=64 time=0.066 ms
> 64 bytes from 192.168.1.130: icmp_seq=2 ttl=64 time=0.080 ms
> 64 bytes from 192.168.1.130: icmp_seq=3 ttl=64 time=0.086 ms
>
> In checking the results from gethostbyname I get
> h_name -> otter.local
> h_aliases -> address -> 0x00000000
> h_addresstype -> 2
> h_length -> 4
> h_addr_list -> address -> ox0a258102
>
>
> So the gethostbyname is returning the address of the Parallels
> virtual interface for Hosts-Guest
> So obviously the unix call might not return what you think it should
> if there are multiple interfaces active for your machine.
> I'l do a ifconfig -a and see what's lurking
>
> en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>          ether 00:17:f2:d9:57:35
>          media: autoselect status: inactive
>          supported media: autoselect 10baseT/UTP <half-duplex>
> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback>
> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex>
> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX
> <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-
> duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
> en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>          inet6 fe80::21b:63ff:fe02:d2db%en1 prefixlen 64 scopeid 0x5
>          inet 192.168.1.130 netmask 0xffffff00 broadcast 192.168.1.255
>          ether 00:1b:63:02:d2:db
>          media: autoselect status: active
>          supported media: autoselect
> en2: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> mtu 1500
>          inet6 fe80::201:23ff:fe45:6789%en2 prefixlen 64 scopeid 0x8
>          inet 10.37.129.2 netmask 0xffffff00 broadcast 10.37.129.255
>          ether 00:01:23:45:67:89
>          media: autoselect status: active
>          supported media: autoselect
> en3: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> mtu 1500
>          inet6 fe80::210:32ff:fe54:7698%en3 prefixlen 64 scopeid 0x9
>          inet 10.211.55.2 netmask 0xffffff00 broadcast 10.211.55.255
>          ether 00:10:32:54:76:98
>          media: autoselect status: active
>          supported media: autoselect
>
>
>
> On Oct 6, 2007, at 3:18 PM, Robert Arning wrote:
>
> >
> > I haven't tried this in a while (previous computer), but I'm not
> > able to get
> > the address of my computer.
> >
> > NetNameResolver localHostAddress ==> a ByteArray(0 0 0 0)
> >
> > All the other NetNameResolver functions seem to be working fine,
> > including
> > giving it my address and having it lookup the name.
> >
> > This is MacOS 10.4 and I have tried in a Croquet 1.0 image and a
> > much older
> > image as well.
> >
> > I have a feeling this requires some sort of UNIX incantation, but
> > I'm not
> > sure what. Any ideas?
> >
> > Cheers,
> > Bob
> > --
> > View this message in context: http://www.nabble.com/
> > localHostAddress-tf4581383.html#a13078111
> > Sent from the Squeak - Dev mailing list archive at Nabble.com.
> >
> >
>
> --
> ========================================================================
> ===
> John M. McIntosh <[hidden email]>
> Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
> ========================================================================
> ===
>
>
>
>

> I haven't tried this in a while (previous computer), but I'm not able to get
> the address of my computer.
>
> NetNameResolver localHostAddress ==> a ByteArray(0 0 0 0)
>
> All the other NetNameResolver functions seem to be working fine, including
> giving it my address and having it lookup the name.
>
> This is MacOS 10.4 and I have tried in a Croquet 1.0 image and a much older
> image as well.
>
> I have a feeling this requires some sort of UNIX incantation, but I'm not
> sure what. Any ideas?
>
> Cheers,
> Bob