diff --git a/pr/src/misc/prnetdb.c b/pr/src/misc/prnetdb.c
--- a/pr/src/misc/prnetdb.c
+++ b/pr/src/misc/prnetdb.c
@@ -2047,35 +2047,43 @@ PR_GetPrefLoopbackAddrInfo(PRNetAddr* re
   return PR_FAILURE;
 #else
 
   PRADDRINFO *res, hints;
   PRStatus rv;
 
   memset(&hints, 0, sizeof(hints));
 
+  hints.ai_flags = AI_PASSIVE;
   rv = GETADDRINFO(NULL, tmpBuf, &hints, &res);
   if (rv == 0) {
     PRBool result_still_empty = PR_TRUE;
     PRADDRINFO* ai = res;
     do {
       PRNetAddr aNetAddr;
 
       while (ai && ai->ai_addrlen > sizeof(PRNetAddr)) ai = ai->ai_next;
 
-      if (ai) {
-        /* copy sockaddr to PRNetAddr */
-        memcpy(&aNetAddr, ai->ai_addr, ai->ai_addrlen);
-        aNetAddr.raw.family = ai->ai_addr->sa_family;
+      if (!ai) {
+          break;
+      }
+
+      /* copy sockaddr to PRNetAddr */
+      memcpy(&aNetAddr, ai->ai_addr, ai->ai_addrlen);
+      aNetAddr.raw.family = ai->ai_addr->sa_family;
 #  ifdef _PR_INET6
-        if (AF_INET6 == aNetAddr.raw.family) aNetAddr.raw.family = PR_AF_INET6;
+      if (AF_INET6 == aNetAddr.raw.family) aNetAddr.raw.family = PR_AF_INET6;
 #  endif
-        if (ai->ai_addrlen < sizeof(PRNetAddr))
+      if (ai->ai_addrlen < sizeof(PRNetAddr))
           memset(((char*)result) + ai->ai_addrlen, 0,
                  sizeof(PRNetAddr) - ai->ai_addrlen);
+      if (result->raw.family == PR_AF_INET) {
+           aNetAddr.inet.port = htons(port);
+      } else {
+           aNetAddr.ipv6.port = htons(port);
       }
 
       /* If we obtain more than one result, prefer IPv6. */
       if (result_still_empty || aNetAddr.raw.family == PR_AF_INET6) {
         memcpy(result, &aNetAddr, sizeof(PRNetAddr));
       }
       result_still_empty = PR_FALSE;
       ai = ai->ai_next;