--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/intercom/intercomd.h	Fri Jun 25 09:57:52 2010 +0200
@@ -0,0 +1,40 @@
+/* intercomd.h
+ *
+ * Copyright (C) DFS Deutsche Flugsicherung (2004, 2005). 
+ * All Rights Reserved.
+ *
+ * Voice over IP Intercom with Telephone conference and Acoustic Echo
+ * Cancellation using unicast RTP messages (RFC3550)
+ *
+ * Version 0.2
+ */
+#ifndef _INTERCOMD_H
+
+#include <syslog.h>
+
+#define ERROR (-1)
+#define OKAY 0
+
+#define NO 0
+#define YES 1
+
+/* Emit program info and abort the program if expr is false with errno */
+#define assert_errno(expr) \
+if(!(expr)) { \
+  syslog(LOG_WARNING, "%s:%d: %s: Assertion '%s' failed. errno=%s\n", \
+  __FILE__, __LINE__, __PRETTY_FUNCTION__, __STRING(expr), strerror(errno)); \
+  exit(1); \
+}
+
+/* Emit program info and return function if expr is true with retvalue */
+#define return_if(expr, retvalue) \
+if(expr) { \
+  syslog(LOG_WARNING, "%s:%d: %s: Check '%s' failed.\n", \
+  __FILE__, __LINE__, __PRETTY_FUNCTION__, __STRING(expr)); \
+  return(retvalue); \
+}
+
+int print_gui(const char *fmt, ...);
+
+#define _INTERCOMD_H
+#endif