Db- open is giving error no 22 with C and 4.4.20 version

Question

Here is my simple code which create and tyr to open a database. i am using vc++ 2005 version. and the error is "Invalid arguments".Could any one suggest possiblities of this kind of error.
#include <sys/types.h>
#include <stdio.h>
#include <db.h>
#include<memory.h>
#include<string.h>
#define     DATABASE "access.db"
int
main()
     DB *dbp;
     DB_TXN *one = NULL;
     DBT key, data;
     int ret, t_ret;
     u_int32_t open_flags;
     if ((ret = db_create(&dbp, NULL,0)) != 0)
          fprintf(stderr, "db_create: %s\n", db_strerror(ret));
          return (1);
     open_flags = DB_CREATE;
     ret = dbp->open
          (dbp,NULL,DATABASE,NULL,DB_BTREE,open_flags,0);
     if (ret != 0)
     //dbp->err(dbp, ret, "%s", "access.db");
          fprintf(stderr, "db_open: %s\n", db_strerror(ret));
          if ((t_ret = dbp->close(dbp, 0)) != 0 && ret == 0664)
          ret = t_ret;
     return(ret);
Thanks in advance.

Answer 1

Hello,
Are verbose error messages turned on? If so what verbose
messages are you receiving? If not please turn them on
see what verbose messages are produced. Those messages
should point you in the direction of the problem. In
order to turn on verbose error message configue the Berkeley
DB error stream as:
DbEnv::set_errfile http://www.oracle.com/technology/documentation/berkeley-db/db/api_cxx/env_set_errfile.html
Or if you don't have a database environment handle, use:
Db::set_errfile http://www.oracle.com/technology/documentation/berkeley-db/db/api_cxx/db_set_errfile.html
Thanks,
Sandra