/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * Author: * JP Rosevear (jpr@ximian.com) * * Copyright 2000, Ximian, Inc. */ #include #include "e-dbhash.h" #include #include #include #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; } 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); } .1.2 FreeBSD GNOME current development ports (https://github.com/freebsd/freebsd-ports-gnome)
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* - Kick MD5 Supportmiwi2011-07-03