Common hprop-functions.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2863 ec53bebd-3082-4978-b11e-865c3cabbd6b

kdc/hprop-common.c

@@ -0,0 +1,93 @@
+/*
+ * 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 "hprop.h"
+
+RCSID("$Id$");
+
+krb5_error_code 
+send_priv(krb5_context context, krb5_auth_context ac,
+	  krb5_data *data, int fd)
+{
+    krb5_data packet;
+    krb5_error_code ret;
+    unsigned char net_len[4];
+
+    ret = krb5_mk_priv (context,
+			ac,
+			data,
+			&packet,
+			NULL);
+    if (ret)
+	return ret;
+    
+    net_len[0] = (packet.length >> 24) & 0xff;
+    net_len[1] = (packet.length >> 16) & 0xff;
+    net_len[2] = (packet.length >> 8) & 0xff;
+    net_len[3] = packet.length & 0xff;
+	
+    if (krb5_net_write (context, fd, net_len, 4) != 4)
+	ret = errno;
+    else if (krb5_net_write (context, fd, packet.data, packet.length) != packet.length)
+	ret =  errno;
+    krb5_data_free(&packet);
+    return ret;
+}
+
+krb5_error_code
+recv_priv(krb5_context context, krb5_auth_context ac, int fd, krb5_data *out)
+{
+    krb5_error_code ret;
+    unsigned char tmp[4];
+    unsigned char *buf;
+    size_t len;
+    krb5_data data;
+    hdb_entry entry;
+    if(krb5_net_read(context, fd, tmp, 4) != 4)
+	return errno;
+    len = (tmp[0] << 24) | (tmp[1] << 16) | (tmp[2] << 8) | tmp[3];
+    buf = malloc(len);
+    if(krb5_net_read(context, fd, buf, len) != len)
+	return errno;
+    data.data = buf;
+    data.length = len;
+    ret = krb5_rd_priv(context, ac, &data, out, NULL);
+    if(ret) return ret;
+    free(buf);
+    return 0;
+}