Update libsrtp to version 2.0

crypto/include/err.h

+/*
+ * err.h
+ *
+ * error status codes
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ *
+ *   Neither the name of the Cisco Systems, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef ERR_H
+#define ERR_H
+
+#include <stdio.h>
+#include <stdarg.h>
+#include "srtp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup Error Error Codes
+ *
+ * Error status codes are represented by the enumeration srtp_err_status_t.
+ *
+ * @{
+ */
+
+
+/**
+ * @}
+ */
+
+typedef enum {
+    srtp_err_level_emergency = 0,
+    srtp_err_level_alert,
+    srtp_err_level_critical,
+    srtp_err_level_error,
+    srtp_err_level_warning,
+    srtp_err_level_notice,
+    srtp_err_level_info,
+    srtp_err_level_debug,
+    srtp_err_level_none
+} srtp_err_reporting_level_t;
+
+/*
+ * err_reporting_init prepares the error system.  If
+ * ERR_REPORTING_SYSLOG is defined, it will open syslog.
+ *
+ * The ident argument is a string that will be prepended to
+ * all syslog messages.  It is conventionally argv[0].
+ */
+
+srtp_err_status_t srtp_err_reporting_init(const char *ident);
+
+/*
+ * keydaemon_report_error reports a 'printf' formatted error
+ * string, followed by a an arg list.  The priority argument
+ * is equivalent to that defined for syslog.
+ *
+ * Errors will be reported to ERR_REPORTING_FILE, if defined, and to
+ * syslog, if ERR_REPORTING_SYSLOG is defined.
+ *
+ */
+
+void
+srtp_err_report(int priority, const char *format, ...);
+
+
+/*
+ * debug_module_t defines a debug module
+ */
+
+typedef struct {
+    int on;           /* 1 if debugging is on, 0 if it is off */
+    const char *name; /* printable name for debug module      */
+} srtp_debug_module_t;
+
+#ifdef ENABLE_DEBUGGING
+
+#define debug_on(mod)  (mod).on = 1
+
+#define debug_off(mod) (mod).on = 0
+
+/* use err_report() to report debug message */
+#define debug_print(mod, format, arg)                  \
+    if (mod.on) srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, arg)
+#define debug_print2(mod, format, arg1, arg2)                  \
+    if (mod.on) srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, arg1, arg2)
+
+#else
+
+/* define macros to do nothing */
+#define debug_print(mod, format, arg)
+
+#define debug_on(mod)
+
+#define debug_off(mod)
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ERR_H */