+ ifp->if_flags = (ifp->if_flags & IFF_CANTCHANGE) |
+ (ifr->ifr_flags &~ IFF_CANTCHANGE);
+ if (ifp->if_ioctl)
+ (void) (*ifp->if_ioctl)(ifp, cmd, data);
+ break;
+
+ case SIOCSIFMETRIC:
+ if (error = suser(u.u_cred, &u.u_acflag))
+ return (error);
+ ifp->if_metric = ifr->ifr_metric;
+ break;
+
+ default:
+ if (so->so_proto == 0)
+ return (EOPNOTSUPP);
+#ifndef COMPAT_43
+ return ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
+ cmd, data, ifp));
+#else
+ {
+ int error, ocmd = cmd;
+
+ switch (cmd) {
+
+ case SIOCSIFDSTADDR:
+ case SIOCSIFADDR:
+ case SIOCSIFBRDADDR:
+ case SIOCSIFNETMASK:
+#if BYTE_ORDER != BIG_ENDIAN
+ if (ifr->ifr_addr.sa_family == 0 &&
+ ifr->ifr_addr.sa_len < 16) {
+ ifr->ifr_addr.sa_family = ifr->ifr_addr.sa_len;
+ ifr->ifr_addr.sa_len = 16;
+ }
+#else
+ if (ifr->ifr_addr.sa_len == 0)
+ ifr->ifr_addr.sa_len = 16;
+#endif
+ break;
+
+ case OSIOCGIFADDR:
+ cmd = SIOCGIFADDR;
+ break;
+
+ case OSIOCGIFDSTADDR:
+ cmd = SIOCGIFDSTADDR;
+ break;
+
+ case OSIOCGIFBRDADDR:
+ cmd = SIOCGIFBRDADDR;
+ break;
+
+ case OSIOCGIFNETMASK:
+ cmd = SIOCGIFNETMASK;
+ }
+ error = ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
+ cmd, data, ifp));
+ switch (ocmd) {
+
+ case OSIOCGIFADDR:
+ case OSIOCGIFDSTADDR:
+ case OSIOCGIFBRDADDR:
+ case OSIOCGIFNETMASK:
+ *(u_short *)&ifr->ifr_addr = ifr->ifr_addr.sa_family;
+ }
+ return (error);
+
+ }
+#endif
+ }
+ return (0);
+}
+
+/*
+ * Return interface configuration
+ * of system. List may be used
+ * in later ioctl's (above) to get
+ * other information.
+ */
+/*ARGSUSED*/
+ifconf(cmd, data)
+ int cmd;
+ caddr_t data;
+{
+ register struct ifconf *ifc = (struct ifconf *)data;
+ register struct ifnet *ifp = ifnet;
+ register struct ifaddr *ifa;
+ register char *cp, *ep;
+ struct ifreq ifr, *ifrp;
+ int space = ifc->ifc_len, error = 0;
+
+ ifrp = ifc->ifc_req;
+ ep = ifr.ifr_name + sizeof (ifr.ifr_name) - 2;
+ for (; space > sizeof (ifr) && ifp; ifp = ifp->if_next) {
+ bcopy(ifp->if_name, ifr.ifr_name, sizeof (ifr.ifr_name) - 2);
+ for (cp = ifr.ifr_name; cp < ep && *cp; cp++)
+ ;
+ *cp++ = '0' + ifp->if_unit; *cp = '\0';
+ if ((ifa = ifp->if_addrlist) == 0) {
+ bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
+ error = copyout((caddr_t)&ifr, (caddr_t)ifrp, sizeof (ifr));
+ if (error)
+ break;
+ space -= sizeof (ifr), ifrp++;
+ } else
+ for ( ; space > sizeof (ifr) && ifa; ifa = ifa->ifa_next) {
+ register struct sockaddr *sa = ifa->ifa_addr;
+#ifdef COMPAT_43
+ if (cmd == OSIOCGIFCONF) {
+ struct osockaddr *osa =
+ (struct osockaddr *)&ifr.ifr_addr;
+ ifr.ifr_addr = *sa;
+ osa->sa_family = sa->sa_family;
+ error = copyout((caddr_t)&ifr, (caddr_t)ifrp,
+ sizeof (ifr));
+ ifrp++;
+ } else
+#endif
+ if (sa->sa_len <= sizeof(*sa)) {
+ ifr.ifr_addr = *sa;
+ error = copyout((caddr_t)&ifr, (caddr_t)ifrp,
+ sizeof (ifr));
+ ifrp++;
+ } else {
+ space -= sa->sa_len - sizeof(*sa);
+ if (space < sizeof (ifr))
+ break;
+ error = copyout((caddr_t)&ifr, (caddr_t)ifrp,
+ sizeof (ifr.ifr_name));
+ if (error == 0)
+ error = copyout((caddr_t)sa,
+ (caddr_t)&ifrp->ifr_addr, sa->sa_len);
+ ifrp = (struct ifreq *)
+ (sa->sa_len + (caddr_t)&ifrp->ifr_addr);
+ }
+ if (error)
+ break;
+ space -= sizeof (ifr);
+ }
+ }
+ ifc->ifc_len -= space;
+ return (error);
+}
+
+static sprint_d(cp, n)
+register char *cp;
+u_short n;
+{
+ register int q, m;
+ do {
+ if (n >= 10000) m = 10000;
+ else if (n >= 1000) m = 1000;
+ else if (n >= 100) m = 100;
+ else if (n >= 10) m = 10;
+ else m = 1;
+ q = n / m;
+ n -= m * q;
+ if (q > 9) q = 10; /* For crays with more than 100K interfaces */
+ *cp++ = "0123456789Z"[q];
+ } while (n > 0);
+ *cp++ = 0;