Andre Poenitz wrote:
>
> On Fri, Oct 19, 2001 at 11:50:33AM +0200, Stephan Witt wrote:
> > 1. Create the symlink on startup, use IP-Addr:Processnumber
>
> How do you get "The IP-address" of some machine?
> This logic is flawed.
You need the IP-address of your own machine to
compare with the IP-address used in constructed symlink.
Some code (error checking ommitted) to get the own IP address:
char * GetIpAddress (void)
{
struct utsname name ;
struct hostent *hp ;
struct in_addr in;
uname(&name) ;
hp = gethostbyname(name.nodename);
(void) memcpy(&in.s_addr,*hp->h_addr_list,sizeof (in.s_addr));
return inet_ntoa (in) ;
}
I know, this is not really robust. One have to use gethostbyname_r
to be reentrant, avoid inet_ntoa and so on. But the idea is like that.
Stephan
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