Hello
I want to read all ip addresses connected with local machine. I did:

if  (gethostname(hostname,MAX_STRING_SIZE)!=
0){
exit(0);
}
struct hostent *h=gethostbyname((const char*)hostname);
int n=0;
for (char** ptr=h->h_addr_list; *ptr; ++ptr,n++){
printf("%s\n",inet_ntoa(*(struct in_addr*)h->h_addr_list[n]));
}

but i received only one ip address connected with eth0.
Morover on freebsd i received only 127.0.0.1.
What about aliases ? On linux i have eth0:1 and i did not received
that ip this way.
Where's my mistake ?

Thanx
Michal

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"vertigo" <none@dev.null> wrote in message
news:ch79d8$ert$1@atlantis.news.tpi.pl...
> Hello
> I want to read all ip addresses connected with local machine. I did:
>
>      if  (gethostname(hostname,MAX_STRING_SIZE)!=
0){
>          exit(0);
>      }
>      struct hostent *h=gethostbyname((const char*)hostname);
>      int n=0;
>      for (char** ptr=h->h_addr_list; *ptr; ++ptr,n++){
>          printf("%s\n",inet_ntoa(*(struct in_addr*)h->h_addr_list[n]))
;
>      }
>
> but i received only one ip address connected with eth0.
> Morover on freebsd i received only 127.0.0.1.
> What about aliases ? On linux i have eth0:1 and i did not received
> that ip this way.
> Where's my mistake ?
>
> Thanx
> Michal
>

The program "netstat" knows how to get the answer.  Try looking at the
FreeBSD source for netstat.  I'm sure you can get some hints from that.
However, whenever you're looking for information about stuff that is not
part of your own process, be prepared to have to be root in order to get the
info.

--

Fletcher Glenn

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