From f9ca79560242e1aebfd3e33e24ff07f1e28cba0e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Mon, 16 May 2005 21:13:42 +0000
Subject: [PATCH] Add new keytab file format JAVA14 that doesn't the use
 extended kvnos, as hinted, this is needed for Java's Kerberos implementation.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15147 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/krb5/keytab_file.c | 41 +++++++++++++++++++++++++++++++++++++----
 1 file changed, 37 insertions(+), 4 deletions(-)

diff --git a/lib/krb5/keytab_file.c b/lib/krb5/keytab_file.c
index 1a8c8fb49..1605e710a 100644
--- a/lib/krb5/keytab_file.c
+++ b/lib/krb5/keytab_file.c
@@ -39,10 +39,14 @@ RCSID("$Id$");
 #define KRB5_KT_VNO_2 2
 #define KRB5_KT_VNO   KRB5_KT_VNO_2
 
+#define KRB5_KT_FL_JAVA 1
+
+
 /* file operations -------------------------------------------- */
 
 struct fkt_data {
     char *filename;
+    int flags;
 };
 
 static krb5_error_code
@@ -246,10 +250,24 @@ fkt_resolve(krb5_context context, const char *name, krb5_keytab id)
 	krb5_set_error_string (context, "malloc: out of memory");
 	return ENOMEM;
     }
+    d->flags = 0;
     id->data = d;
     return 0;
 }
 
+static krb5_error_code
+fkt_resolve_java14(krb5_context context, const char *name, krb5_keytab id)
+{
+    krb5_error_code ret;
+
+    ret = fkt_resolve(context, name, id);
+    if (ret == 0) {
+	struct fkt_data *d = id->data;
+	d->flags |= KRB5_KT_FL_JAVA;
+    }
+    return ret;
+}
+
 static krb5_error_code
 fkt_close(krb5_context context, krb5_keytab id)
 {
@@ -536,10 +554,12 @@ fkt_add_entry(krb5_context context,
 	    krb5_storage_free(emem);
 	    goto out;
 	}
-	ret = krb5_store_int32 (emem, entry->vno);
-	if (ret) {
-	    krb5_storage_free(emem);
-	    goto out;
+	if ((d->flags & KRB5_KT_FL_JAVA) == 0) {
+	    ret = krb5_store_int32 (emem, entry->vno);
+	    if (ret) {
+		krb5_storage_free(emem);
+		goto out;
+	    }
 	}
 
 	ret = krb5_storage_to_data(emem, &keytab);
@@ -640,3 +660,16 @@ const krb5_kt_ops krb5_wrfkt_ops = {
     fkt_add_entry,
     fkt_remove_entry
 };
+
+const krb5_kt_ops krb5_javakt_ops = {
+    "JAVA14",
+    fkt_resolve_java14,
+    fkt_get_name,
+    fkt_close,
+    NULL, /* get */
+    fkt_start_seq_get,
+    fkt_next_entry,
+    fkt_end_seq_get,
+    fkt_add_entry,
+    fkt_remove_entry
+};