Import of Zebra CVS 20020117-13:15zebra.org.20030117

1 files changed, 39 insertions, 0 deletions

diff --git a/bgpd/bgp_ecommunity.c b/bgpd/bgp_ecommunity.c
index 2f9cc945..aa0f1176 100644
--- a/bgpd/bgp_ecommunity.c
+++ b/bgpd/bgp_ecommunity.c
@@ -158,6 +158,15 @@ ecommunity_dup (struct ecommunity *ecom)
   return new;
 }
 
+/* Retrun string representation of communities attribute. */
+char *
+ecommunity_str (struct ecommunity *ecom)
+{
+  if (! ecom->str)
+    ecom->str = ecommunity_ecom2str (ecom, ECOMMUNITY_FORMAT_DISPLAY);
+  return ecom->str;
+}
+
 /* Merge two Extended Communities Attribute structure.  */
 struct ecommunity *
 ecommunity_merge (struct ecommunity *ecom1, struct ecommunity *ecom2)
@@ -639,3 +648,33 @@ ecommunity_ecom2str (struct ecommunity *ecom, int format)
     }
   return str_buf;
 }
+
+int
+ecommunity_match (struct ecommunity *ecom1, struct ecommunity *ecom2)
+{
+  int i = 0;
+  int j = 0;
+
+  if (ecom1 == NULL && ecom2 == NULL)
+    return 1;
+
+  if (ecom1 == NULL || ecom2 == NULL)
+    return 0;
+
+  if (ecom1->size < ecom2->size)
+    return 0;
+
+  /* Every community on com2 needs to be on com1 for this to match */
+  while (i < ecom1->size && j < ecom2->size)
+    {
+      if (memcmp (ecom1->val + i, ecom2->val + j, ECOMMUNITY_SIZE) == 0)
+        j++;
+      i++;
+    }
+
+  if (j == ecom2->size)
+    return 1;
+  else
+    return 0;
+}
+