s3: libsmb: Add prioritize_ipv4_list_sa().

Re-arranges a samba_sockaddr array in IPv4 preference.

Not yet used so compiles but ifdef'ed out. Needed for conversion
of internal_resolve_name().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>

diff --git a/source3/libsmb/namequery.c b/source3/libsmb/namequery.c
index 6595324b255b4b0b211e4f9b01b2cc3d9be79b62..4ac387b44d5ffc406a39cddbde21d25535d84fbf 100644 (file)
--- a/source3/libsmb/namequery.c
+++ b/source3/libsmb/namequery.c
@@ -1364,6 +1364,42 @@ static bool prioritize_ipv4_list(struct ip_service *iplist, size_t count)
        return true;
 }
 
+#if 0
+static bool prioritize_ipv4_list_sa(struct samba_sockaddr *salist, size_t count)
+{
+       TALLOC_CTX *frame = talloc_stackframe();
+       struct samba_sockaddr *salist_new = talloc_array(frame,
+                                               struct samba_sockaddr,
+                                               count);
+       size_t i, j;
+
+       if (salist_new == NULL) {
+               TALLOC_FREE(frame);
+               return false;
+       }
+
+       j = 0;
+
+       /* Copy IPv4 first. */
+       for (i = 0; i < count; i++) {
+               if (salist[i].u.ss.ss_family == AF_INET) {
+                       salist_new[j++] = salist[i];
+               }
+       }
+
+       /* Copy IPv6. */
+       for (i = 0; i < count; i++) {
+               if (salist[i].u.ss.ss_family != AF_INET) {
+                       salist_new[j++] = salist[i];
+               }
+       }
+
+       memcpy(salist, salist_new, sizeof(struct samba_sockaddr)*count);
+       TALLOC_FREE(frame);
+       return true;
+}
+#endif
+
 /****************************************************************************
  Do a netbios name query to find someones IP.
  Returns an array of IP addresses or NULL if none.