Interface# 0's name was incorrectly generated

diff --git a/sys/net/if.c b/sys/net/if.c
index 9b6f22c..ccaad54 100644 (file)
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -589,14 +589,21 @@ ifconf(cmd, data)
                strncpy(ifr.ifr_name, ifp->if_name, sizeof(ifr.ifr_name) - 2);
                for (cp = ifr.ifr_name; cp < ep && *cp; cp++)
                        continue;
-               for (i = ifp->if_unit, ndig = 0; i; i /= 10)
+               i = ifp->if_unit;
+               ndig = 0;
+               do {
                        ndig++;
+                       i /= 10;
+               } while (i);
                cp += ndig;
                if (cp >= ep)
                        continue;
                *cp = '\0';
-               for (i = ifp->if_unit; i; i /= 10)
-                       *--cp = '0' + (i % 10);
+               i = ifp->if_unit;
+               do {
+                       *--cp = '0' + i % 10;
+                       i /= 10;
+               } while (i);
                if ((ifa = ifp->if_addrlist.tqh_first) == 0) {
                        bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
                        error = copyout((caddr_t)&ifr, (caddr_t)ifrp,