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/*
* err.h
*
* error status codes
*
* David A. McGrew
* Cisco Systems, Inc.
*/
/*
*
* Copyright (c) 2001-2017, 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"
#if defined(__clang__) || (defined(__GNUC__) && defined(__has_attribute))
#if __has_attribute(format)
#define LIBSRTP_FORMAT_PRINTF(fmt, args) \
__attribute__((format(__printf__, fmt, args)))
#else
#define LIBSRTP_FORMAT_PRINTF(fmt, args)
#endif
#else
#define LIBSRTP_FORMAT_PRINTF(fmt, args)
#endif
#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_error,
srtp_err_level_warning,
srtp_err_level_info,
srtp_err_level_debug
} srtp_err_reporting_level_t;
/*
* err_reporting_init prepares the error system. If
* ERR_REPORTING_STDOUT is defined, it will log to stdout.
*
*/
srtp_err_status_t srtp_err_reporting_init(void);
typedef void(srtp_err_report_handler_func_t)(srtp_err_reporting_level_t level,
const char *msg);
srtp_err_status_t srtp_install_err_report_handler(
srtp_err_report_handler_func_t func);
/*
* srtp_err_report reports a 'printf' formatted error
* string, followed by a an arg list. The level argument
* is one of srtp_err_reporting_level_t.
*
* Errors will be reported to stdout, if ERR_REPORTING_STDOUT
* is defined.
*
*/
void srtp_err_report(srtp_err_reporting_level_t level, const char *format, ...)
LIBSRTP_FORMAT_PRINTF(2, 3);
/*
* 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_DEBUG_LOGGING
#define debug_print0(mod, format) \
srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name)
#define debug_print(mod, format, arg) \
srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, arg)
#define debug_print2(mod, format, arg1, arg2) \
srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name, \
arg1, arg2)
#else
#define debug_print0(mod, format) \
if (mod.on) \
srtp_err_report(srtp_err_level_debug, ("%s: " format "\n"), mod.name)
#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)
#endif
#ifdef __cplusplus
}
#endif
#endif /* ERR_H */
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