Add libotr/etc sources

1 files changed, 78 insertions, 0 deletions

diff --git a/libotr/libotr-4.1.1/src/tlv.h b/libotr/libotr-4.1.1/src/tlv.h
new file mode 100644
index 0000000..0bfeeb2
--- /dev/null
+++ b/libotr/libotr-4.1.1/src/tlv.h
@@ -0,0 +1,78 @@
+/*
+ *  Off-the-Record Messaging library
+ *  Copyright (C) 2004-2012  Ian Goldberg, Chris Alexander, Willy Lew,
+ *  			     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 __TLV_H__
+#define __TLV_H__
+
+typedef struct s_OtrlTLV {
+    unsigned short type;
+    unsigned short len;
+    unsigned char *data;
+    struct s_OtrlTLV *next;
+} OtrlTLV;
+
+/* TLV types */
+
+/* This is just padding for the encrypted message, and should be ignored. */
+#define OTRL_TLV_PADDING         0x0000
+
+/* The sender has thrown away his OTR session keys with you */
+#define OTRL_TLV_DISCONNECTED    0x0001
+
+/* The message contains a step in the Socialist Millionaires' Protocol. */
+#define OTRL_TLV_SMP1            0x0002
+#define OTRL_TLV_SMP2            0x0003
+#define OTRL_TLV_SMP3            0x0004
+#define OTRL_TLV_SMP4            0x0005
+#define OTRL_TLV_SMP_ABORT       0x0006
+/* Like OTRL_TLV_SMP1, but there's a question for the buddy at the
+ * beginning */
+#define OTRL_TLV_SMP1Q           0x0007
+/* Tell the application the current "extra" symmetric key */
+/* XXX: Document this in the protocol spec:
+ * The body of the TLV will begin with a 4-byte indication of what this
+ * symmetric key will be used for (file transfer, voice encryption,
+ * etc.).  After that, the contents are use-specific (which file, etc.).
+ * There are no currently defined uses. */
+#define OTRL_TLV_SYMKEY          0x0008
+
+/* Make a single TLV, copying the supplied data */
+OtrlTLV *otrl_tlv_new(unsigned short type, unsigned short len,
+	const unsigned char *data);
+
+/* Construct a chain of TLVs from the given data */
+OtrlTLV *otrl_tlv_parse(const unsigned char *serialized, size_t seriallen);
+
+/* Deallocate a chain of TLVs */
+void otrl_tlv_free(OtrlTLV *tlv);
+
+/* Find the serialized length of a chain of TLVs */
+size_t otrl_tlv_seriallen(const OtrlTLV *tlv);
+
+/* Serialize a chain of TLVs.  The supplied buffer must already be large
+ * enough. */
+void otrl_tlv_serialize(unsigned char *buf, const OtrlTLV *tlv);
+
+/* Return the first TLV with the given type in the chain, or NULL if one
+ * isn't found.  (The tlvs argument isn't const because the return type
+ * needs to be non-const.) */
+OtrlTLV *otrl_tlv_find(OtrlTLV *tlvs, unsigned short type);
+
+#endif