1 files changed, 107 insertions, 0 deletions
diff --git a/libotr/libotr-4.1.1/src/serial.h b/libotr/libotr-4.1.1/src/serial.h
new file mode 100644
index 0000000..cd2442b
--- /dev/null
+++ b/libotr/libotr-4.1.1/src/serial.h
@@ -0,0 +1,107 @@
+/*
+ *  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 __SERIAL_H__
+#define __SERIAL_H__
+
+#undef DEBUG
+
+#ifdef DEBUG
+
+#include <stdio.h>
+
+#define debug_data(t,b,l) do { const unsigned char *data = (b); size_t i; \
+	fprintf(stderr, "%s: ", (t)); \
+	for(i=0;i<(l);++i) { \
+	    fprintf(stderr, "%02x", data[i]); \
+	} \
+	fprintf(stderr, "\n"); \
+    } while(0)
+
+#define debug_int(t,b) do { const unsigned char *data = (b); \
+	unsigned int v = \
+	    (((unsigned int)data[0]) << 24) | (data[1] << 16) | (data[2] << 8) | data[3]; \
+	fprintf(stderr, "%s: %u (0x%x)\n", (t), v, v); \
+    } while(0)
+
+#else
+#define debug_data(t,b,l)
+#define debug_int(t,b)
+#endif
+
+#define write_int(x) do { \
+	bufp[0] = ((x) >> 24) & 0xff; \
+	bufp[1] = ((x) >> 16) & 0xff; \
+	bufp[2] = ((x) >> 8) & 0xff; \
+	bufp[3] = (x) & 0xff; \
+	bufp += 4; lenp -= 4; \
+    } while(0)
+
+#define write_mpi(x,nx,dx) do { \
+	write_int(nx); \
+	gcry_mpi_print(format, bufp, lenp, NULL, (x)); \
+	debug_data((dx), bufp, (nx)); \
+	bufp += (nx); lenp -= (nx); \
+    } while(0)
+
+#define require_len(l) do { \
+	if (lenp < (l)) goto invval; \
+    } while(0)
+
+#define read_int(x) do { \
+	require_len(4); \
+	(x) = (((unsigned int)bufp[0]) << 24) | (bufp[1] << 16) | (bufp[2] << 8) | bufp[3]; \
+	bufp += 4; lenp -= 4; \
+    } while(0)
+
+#define read_mpi(x) do { \
+	size_t mpilen; \
+	read_int(mpilen); \
+	if (mpilen) { \
+	    require_len(mpilen); \
+	    gcry_mpi_scan(&(x), GCRYMPI_FMT_USG, bufp, mpilen, NULL); \
+	} else { \
+	    (x) = gcry_mpi_set_ui(NULL, 0); \
+	} \
+	bufp += mpilen; lenp -= mpilen; \
+    } while(0)
+
+/* Write version and msg type into bufp*/
+#define write_header(version, msgtype) do { \
+	bufp[0] = 0x00; \
+        bufp[1] = version & 0xff; \
+        bufp[2] = msgtype; \
+        debug_data("Header", bufp, 3); \
+        bufp += 3; lenp -= 3; \
+    } while(0)
+
+/* Verify msg header is v1, v2 or v3 and has type x,
+*  increment bufp past msg header */
+#define skip_header(x) do { \
+        require_len(3); \
+        if ((bufp[0] != 0x00) || (bufp[2] != x)) \
+	    goto invval; \
+        if ((bufp[1] == 0x01) || (bufp[1] == 0x02) || \
+                (bufp[1] == 0x03)) { \
+	    bufp += 3; lenp -= 3; \
+	} else goto invval; \
+    } while(0)
+
+#endif