Find next record
#include <cdb.h>
int cdb_successor(struct cdb *c,char *key,unsigned long int klen);
cdb_successor finds the record that follows key. If key is NULL, cdb_successor finds the first record.
NOTE! The database must not contain keys with more than one associated record or this API will lead to infinite loops! Use cdb_firstkey and cdb_nextkey instead.
You can use cdb_datapos or cdb_keypos to get position and cdb_datalen and cdb_keylen to get len.