1 files changed, 89 insertions, 0 deletions
diff --git a/comm/third_party/libotr/src/instag.h b/comm/third_party/libotr/src/instag.h
new file mode 100644
index 0000000000..c8aabb324f
--- /dev/null
+++ b/comm/third_party/libotr/src/instag.h
@@ -0,0 +1,89 @@
+/*
+ *  Off-the-Record Messaging library
+ *  Copyright (C) 2004-2012  Ian Goldberg, Rob Smits, Chris Alexander,
+ *  			      Willy Lew, Lisa Du, Nikita Borisov
+ *                           <otr@cypherpunks.ca>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of version 2.1 of the GNU Lesser General
+ *  Public License as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __INSTAG_H__
+#define __INSTAG_H__
+
+#include <stdio.h>
+#include <errno.h>
+
+#define OTRL_INSTAG_MASTER 0
+#define OTRL_INSTAG_BEST 1 /* Most secure, based on: conv status,
+			    * then fingerprint status, then most recent. */
+#define OTRL_INSTAG_RECENT 2
+#define OTRL_INSTAG_RECENT_RECEIVED 3
+#define OTRL_INSTAG_RECENT_SENT 4
+
+#define OTRL_MIN_VALID_INSTAG 0x100 /* Instag values below this are reserved
+				     * for meta instags, defined above, */
+
+typedef unsigned int otrl_instag_t;
+
+/* The list of instance tags used for our accounts */
+typedef struct s_OtrlInsTag {
+    struct s_OtrlInsTag *next;
+    struct s_OtrlInsTag **tous;
+
+    char *accountname;
+    char *protocol;
+    otrl_instag_t instag;
+} OtrlInsTag;
+
+#include "userstate.h"
+
+/* Forget the given instag. */
+void otrl_instag_forget(OtrlInsTag* instag);
+
+/* Forget all instags in a given OtrlUserState. */
+void otrl_instag_forget_all(OtrlUserState us);
+
+/* Fetch the instance tag from the given OtrlUserState associated with
+ * the given account */
+OtrlInsTag * otrl_instag_find(OtrlUserState us, const char *accountname,
+	const char *protocol);
+
+/* Read our instance tag from a file on disk into the given
+ * OtrlUserState. */
+gcry_error_t otrl_instag_read(OtrlUserState us, const char *filename);
+
+/* Read our instance tag from a file on disk into the given
+ * OtrlUserState. The FILE* must be open for reading. */
+gcry_error_t otrl_instag_read_FILEp(OtrlUserState us, FILE *instf);
+
+/* Return a new valid instance tag */
+otrl_instag_t otrl_instag_get_new();
+
+/* Get a new instance tag for the given account and write to file*/
+gcry_error_t otrl_instag_generate(OtrlUserState us, const char *filename,
+	const char *accountname, const char *protocol);
+
+/* Get a new instance tag for the given account and write to file
+ * The FILE* must be open for writing. */
+gcry_error_t otrl_instag_generate_FILEp(OtrlUserState us, FILE *instf,
+	const char *accountname, const char *protocol);
+
+/* Write our instance tags to a file on disk. */
+gcry_error_t otrl_instag_write(OtrlUserState us, const char *filename);
+
+/* Write our instance tags to a file on disk.
+ * The FILE* must be open for writing. */
+gcry_error_t otrl_instag_write_FILEp(OtrlUserState us, FILE *instf);
+
+#endif