net/network_layer/fib: corrected handling of all 0 addresses

RIOT-OS · May 18, 2015 · 012cf85 · 012cf85
1 parent 684a7d5
commit 012cf85
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/sys/net/network_layer/fib/fib.c b/sys/net/network_layer/fib/fib.c
@@ -100,6 +100,14 @@ static int fib_find_entry(uint8_t *dst, size_t dst_size,
  size_t prefix_size = 0;
  size_t match_size = dst_size;
  int ret = -EHOSTUNREACH;
+ bool is_all_zeros_addr = true;
+
+ for(size_t i = 0; i < dst_size; ++i) {
+ if (dst[i] != 0) {
+ is_all_zeros_addr = false;
+ break;
+ }
+ }
 
  for (size_t i = 0; i < FIB_MAX_FIB_TABLE_ENTRIES; ++i) {
 
@@ -133,7 +141,8 @@ static int fib_find_entry(uint8_t *dst, size_t dst_size,
  (universal_address_compare(fib_table[i].global, dst, &match_size) == 0)) {
 
  /* If we found an exact match */
- if (match_size == dst_size) {
+ if (match_size == dst_size
+ || (is_all_zeros_addr && match_size == 0)) {
  entry_arr[0] = &(fib_table[i]);
  *entry_arr_size = 1;
  /* we will not find a better one so we return */