Function silc_hash_table_find_foreach
SYNOPSIS
void silc_hash_table_find_foreach(SilcHashTable ht, void *key,
SilcHashForeach foreach,
void *user_context);
DESCRIPTION
As the hash table is collision resistant it is possible to save duplicate
keys to the hash table. This function can be used to find all keys
and contexts from the hash table that are found using the `key'. The
`foreach' is called for every found key.