Some functions in common.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@3288 ec53bebd-3082-4978-b11e-865c3cabbd6b
1997-08-30 19:26:35 +00:00
parent bf6708d225
commit 755def591e
1 changed files with 148 additions and 0 deletions
--- a/lib/hdb/common.c
+++ b/lib/hdb/common.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 1997 Kungliga Tekniska H<>gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ *
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ *
+ * 3. All advertising materials mentioning features or use of this software 
+ *    must display the following acknowledgement: 
+ *      This product includes software developed by Kungliga Tekniska 
+ *      H<>gskolan and its contributors. 
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ */
+
+#include "hdb_locl.h"
+
+RCSID("$Id$");
+
+int
+hdb_principal2key(krb5_context context, krb5_principal p, krb5_data *key)
+{
+    Principal new;
+    size_t len;
+    unsigned char *buf;
+    int ret;
+
+    ret = copy_Principal(p, &new);
+    if(ret)
+	goto out;
+    new.name.name_type = 0;
+    len = length_Principal(&new);
+    buf  = malloc(len);
+    if(buf == NULL){
+	ret = ENOMEM;
+	goto out;
+    }
+    ret = encode_Principal(buf + len - 1, len, &new, &len);
+    if(ret){
+	free(buf);
+	goto out;
+    }
+    key->data = buf;
+    key->length = len;
+out:
+    free_Principal(&new);
+    return ret;
+}
+
+int
+hdb_key2principal(krb5_context context, krb5_data *key, krb5_principal p)
+{
+    size_t len;
+    return decode_Principal(key->data, key->length, p, &len);
+}
+
+int
+hdb_entry2value(krb5_context context, hdb_entry *ent, krb5_data *value)
+{
+    unsigned char *buf;
+    size_t len;
+    int ret;
+    len = length_hdb_entry(ent);
+    buf = malloc(len);
+    if(buf == NULL)
+	return ENOMEM;
+    ret = encode_hdb_entry(buf + len - 1, len, ent, &len);
+    if(ret){
+	free(buf);
+	return ret;
+    }
+    value->data = buf;
+    value->length = len;
+    return 0;
+}
+
+int
+hdb_value2entry(krb5_context context, krb5_data *value, hdb_entry *ent)
+{
+    size_t len;
+    return decode_hdb_entry(value->data, value->length, ent, &len);
+}
+
+krb5_error_code
+_hdb_fetch(krb5_context context, HDB *db, hdb_entry *entry)
+{
+    krb5_data key, value;
+    int code;
+
+    hdb_principal2key(context, entry->principal, &key);
+    code = db->_get(context, db, key, &value);
+    krb5_data_free(&key);
+    if(code)
+	return code;
+    hdb_value2entry(context, &value, entry);
+    krb5_data_free(&value);
+    return 0;
+}
+
+krb5_error_code
+_hdb_store(krb5_context context, HDB *db, int replace, hdb_entry *entry)
+{
+    krb5_data key, value;
+    int code;
+
+    hdb_principal2key(context, entry->principal, &key);
+    hdb_entry2value(context, entry, &value);
+    code = db->_put(context, db, replace, key, value);
+    krb5_data_free(&value);
+    krb5_data_free(&key);
+    return code;
+}
+
+krb5_error_code
+_hdb_delete(krb5_context context, HDB *db, hdb_entry *entry)
+{
+    krb5_data key;
+    int code;
+
+    hdb_principal2key(context, entry->principal, &key);
+    code = db->_del(context, db, key);
+    krb5_data_free(&key);
+    return code;
+}
+