>I may have missed something, but what? I ifconfig fxp0 inet 0.0.0.0, then
>run the program below. ifconfig -a now no longer shows an inet line for
>fxp0, yet the interface works (can ssh in), so the program must have worked
>and set the interface. ifconfig -a not showing it makes me wonder if I 
>missed something anyway. Thoughts?

don't forget to (a) zero out the struct ifreq first, and (b) set
sin->sin_len to something sensible.  then ifconfig -a will work.

>#include <sys/ioctl.h>
>#include <sys/socket.h>
>#include <netinet/in.h>
>#include <arpa/inet.h>
>#include <net/if.h>
>
>#include <err.h>
>#include <stdio.h>
>#include <string.h>
>#include <unistd.h>
>
>int main()
>{
>  int s;
>  struct ifreq ifr;
>  struct sockaddr_in *sin;
>
>  s=socket(PF_INET,SOCK_DGRAM,0);
>  strncpy(ifr.ifr_name,"fxp0",sizeof(ifr.ifr_name));
>  sin=(struct sockaddr_in*)&ifr.ifr_addr;
>  sin->sin_family=AF_INET;
>  if(inet_pton(AF_INET,"192.168.4.21",&sin->sin_addr)<0)err(1,NULL);
>  printf("%s: %s\n",ifr.ifr_name,inet_ntoa(sin->sin_addr));
>  if(ioctl(s,SIOCSIFADDR,&ifr)<0)err(1,"SIOCSIFADDR");
>  if(ioctl(s,SIOCGIFADDR,&ifr)<0)err(1,"SIOCGIFADDR");
>  printf("%s\n",inet_ntoa(sin->sin_addr));
>  close(s);
>
>  return 0;
>}

-- 
|-----< "CODE WARRIOR" >-----|
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twofsonet@graffiti.com (Andrew Brown)                that goes *ping*!"
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