/*
* 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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