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#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "db.h"
#define DATABASE "access.db"
int
main()
{
DB *dbp;
DBT key, data;
int ret, t_ret;
/* Create the database handle and open the underlying database. */
if ((ret = db_create(&dbp, NULL, 0)) != 0) {
fprintf(stderr, "db_create: %s\n", db_strerror(ret));
exit (1);
}
if ((ret = dbp->open(dbp,
NULL, DATABASE, NULL, DB_BTREE, DB_CREATE, 0664)) != 0) {
dbp->err(dbp, ret, "%s", DATABASE);
goto err;
}
/* Initialize key/data structures. */
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
key.data = "fruit";
key.size = sizeof("fruit");
data.data = "apple";
data.size = sizeof("apple");
/* Store a key/data pair. */
if ((ret = dbp->put(dbp, NULL, &key, &data, 0)) == 0)
printf("db: %s: key stored.\n", (char *)key.data);
else {
dbp->err(dbp, ret, "DB->put");
goto err;
}
/* Retrieve a key/data pair. */
if ((ret = dbp->get(dbp, NULL, &key, &data, 0)) == 0)
printf("db: %s: key retrieved: data was %s.\n",
(char *)key.data, (char *)data.data);
else {
dbp->err(dbp, ret, "DB->get");
goto err;
}
/* Delete a key/data pair. */
if ((ret = dbp->del(dbp, NULL, &key, 0)) == 0)
printf("db: %s: key was deleted.\n", (char *)key.data);
else {
dbp->err(dbp, ret, "DB->del");
goto err;
}
/* Retrieve a key/data pair. */
if ((ret = dbp->get(dbp, NULL, &key, &data, 0)) == 0)
printf("db: %s: key retrieved: data was %s.\n",
(char *)key.data, (char *)data.data);
else
dbp->err(dbp, ret, "DB->get");
err: if ((t_ret = dbp->close(dbp, 0)) != 0 && ret == 0)
ret = t_ret;
exit(ret);
}
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