diff options
Diffstat (limited to 'e-util/e-dbhash.c')
| -rw-r--r-- | e-util/e-dbhash.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/e-util/e-dbhash.c b/e-util/e-dbhash.c deleted file mode 100644 index 209798fbc5..0000000000 --- a/e-util/e-dbhash.c +++ /dev/null @@ -1,227 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * Author: - * JP Rosevear (jpr@ximian.com) - * - * Copyright 2000, Ximian, Inc. - */ - -#include <config.h> - -#include "e-dbhash.h" - -#include <string.h> -#include <fcntl.h> -#include <db.h> -#include "md5-utils.h" - -#if DB_VERSION_MAJOR != 3 || \ - DB_VERSION_MINOR != 1 || \ - DB_VERSION_PATCH != 17 -#error Including wrong DB3. Need libdb 3.1.17. -#endif - -struct _EDbHashPrivate -{ - DB *db; -}; - -EDbHash * -e_dbhash_new (const char *filename) -{ - EDbHash *edbh; - DB *db; - int rv; - - int major, minor, patch; - - db_version (&major, &minor, &patch); - - if (major != 3 || - minor != 1 || - patch != 17) { - g_warning ("Wrong version of libdb."); - return NULL; - } - - /* Attempt to open the database */ - rv = db_create (&db, NULL, 0); - if (rv != 0) { - return NULL; - } - - rv = db->open (db, filename, NULL, DB_HASH, 0, 0666); - if (rv != 0) { - rv = db->open (db, filename, NULL, DB_HASH, DB_CREATE, 0666); - - if (rv != 0) - return NULL; - } - - edbh = g_new (EDbHash, 1); - edbh->priv = g_new (EDbHashPrivate, 1); - edbh->priv->db = db; - - return edbh; -} - -static void -string_to_dbt(const char *str, DBT *dbt) -{ - memset (dbt, 0, sizeof (DBT)); - dbt->data = (void*)str; - dbt->size = strlen (str) + 1; -} - -static void -md5_to_dbt(const char str[16], DBT *dbt) -{ - memset (dbt, 0, sizeof (DBT)); - dbt->data = (void*)str; - dbt->size = 16; -} - -void -e_dbhash_add (EDbHash *edbh, const gchar *key, const gchar *data) -{ - DB *db; - DBT dkey; - DBT ddata; - guchar local_hash[16]; - - g_return_if_fail (edbh != NULL); - g_return_if_fail (edbh->priv != NULL); - g_return_if_fail (edbh->priv->db != NULL); - g_return_if_fail (key != NULL); - g_return_if_fail (data != NULL); - - db = edbh->priv->db; - - /* Key dbt */ - string_to_dbt (key, &dkey); - - /* Data dbt */ - md5_get_digest (data, strlen (data), local_hash); - md5_to_dbt (local_hash, &ddata); - - /* Add to database */ - db->put (db, NULL, &dkey, &ddata, 0); -} - -void -e_dbhash_remove (EDbHash *edbh, const char *key) -{ - DB *db; - DBT dkey; - - g_return_if_fail (edbh != NULL); - g_return_if_fail (edbh->priv != NULL); - g_return_if_fail (key != NULL); - - db = edbh->priv->db; - - /* Key dbt */ - string_to_dbt (key, &dkey); - - /* Remove from database */ - db->del (db, NULL, &dkey, 0); -} - -void -e_dbhash_foreach_key (EDbHash *edbh, EDbHashFunc func, gpointer user_data) -{ - DB *db; - DBT dkey; - DBT ddata; - DBC *dbc; - int db_error = 0; - - g_return_if_fail (edbh != NULL); - g_return_if_fail (edbh->priv != NULL); - g_return_if_fail (func != NULL); - - db = edbh->priv->db; - - db_error = db->cursor (db, NULL, &dbc, 0); - - if (db_error != 0) { - return; - } - - memset(&dkey, 0, sizeof(DBT)); - memset(&ddata, 0, sizeof(DBT)); - db_error = dbc->c_get(dbc, &dkey, &ddata, DB_FIRST); - - while (db_error == 0) { - (*func) ((const char *)dkey.data, user_data); - - db_error = dbc->c_get(dbc, &dkey, &ddata, DB_NEXT); - } - dbc->c_close (dbc); -} - -EDbHashStatus -e_dbhash_compare (EDbHash *edbh, const char *key, const char *compare_data) -{ - DB *db; - DBT dkey; - DBT ddata; - guchar compare_hash[16]; - - g_return_val_if_fail (edbh != NULL, FALSE); - g_return_val_if_fail (edbh->priv != NULL, FALSE); - g_return_val_if_fail (key != NULL, FALSE); - g_return_val_if_fail (compare_hash != NULL, FALSE); - - db = edbh->priv->db; - - /* Key dbt */ - string_to_dbt (key, &dkey); - - /* Lookup in database */ - memset (&ddata, 0, sizeof (DBT)); - db->get (db, NULL, &dkey, &ddata, 0); - - /* Compare */ - if (ddata.data) { - md5_get_digest (compare_data, strlen (compare_data), compare_hash); - - if (memcmp (ddata.data, compare_hash, sizeof (guchar) * 16)) - return E_DBHASH_STATUS_DIFFERENT; - } else { - return E_DBHASH_STATUS_NOT_FOUND; - } - - return E_DBHASH_STATUS_SAME; -} - -void -e_dbhash_write (EDbHash *edbh) -{ - DB *db; - - g_return_if_fail (edbh != NULL); - g_return_if_fail (edbh->priv != NULL); - - db = edbh->priv->db; - - /* Flush database to disk */ - db->sync (db, 0); -} - -void -e_dbhash_destroy (EDbHash *edbh) -{ - DB *db; - - g_return_if_fail (edbh != NULL); - g_return_if_fail (edbh->priv != NULL); - - db = edbh->priv->db; - - /* Close datbase */ - db->close (db, 0); - - g_free (edbh->priv); - g_free (edbh); -} |