Mine

#include <db.h>#define DATABASE "test.db"intdb_open(DB_ENV *myEnv, DB *dbp) {    u_int32_t db_flags;    int ret;//opening database    ret = db_create(&dbp, myEnv, 0);    db_flags = DB_CREATE | DB_AUTO_COMMIT;    ret = dbp->open(dbp,                    NULL,                    DATABASE,                    NULL,                    DB_BTREE,                    db_flags,                    0);    if (ret != 0) {        fprintf(stderr, "cant open env - %s \n",db_strerror(ret));         return 1;    } else {         return 0;    }}intmain() {    DB_ENV env,*myEnv;    DB  db,*dbp;    u_int32_t db_flags;    u_int32_t env_flags;    int ret, ret_c;    const char *home_dir = "/tmp/";    myEnv=&env;    dbp=&db;//creating environment    ret = db_env_create(&myEnv, 0);    if (ret != 0) {        fprintf(stderr, "cant create env- %s \n",db_strerror(ret));        goto err;    }    env_flags = DB_CREATE |                DB_INIT_MPOOL |                DB_INIT_TXN |                DB_INIT_LOCK |                DB_INIT_LOG;    ret = myEnv->open(myEnv,home_dir,env_flags,0);    if (ret != 0) {        fprintf(stderr, "cant open env - %s \n",db_strerror(ret));        goto err;    }    db_open(myEnv, dbp);err:    if (dbp  != NULL) {        ret_c = dbp->close(dbp, 0);        if (ret_c != 0) {            fprintf(stderr, "env close failed - %s \n", db_strerror(ret_c));            ret = ret_c;        }    }    if (myEnv != NULL) {        ret_c = myEnv->close(myEnv,0);        if (ret_c != 0) {            fprintf(stderr, "env close failed - %s \n", db_strerror(ret_c));            ret = ret_c;        }    }   exit(0);}