debug.h

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/*
 * debug.h -- debug utilities
 *
 * Copyright (C) 2010-2011,2014 Olaf Bergmann <bergmann@tzi.org>
 *
 * This file is part of the CoAP library libcoap. Please see README for terms
 * of use.
 */

#ifndef _COAP_DEBUG_H_
#define _COAP_DEBUG_H_

#ifndef COAP_DEBUG_FD

#define COAP_DEBUG_FD stdout
#endif

#ifndef COAP_ERR_FD

#define COAP_ERR_FD stderr
#endif

#ifdef HAVE_SYSLOG_H
#include <syslog.h>
typedef short coap_log_t;
#else

typedef enum {
  LOG_EMERG=0, 
  LOG_ALERT,   
  LOG_CRIT,    
  LOG_ERR,     
  LOG_WARNING, 
  LOG_NOTICE,  
  LOG_INFO,    
  LOG_DEBUG    
} coap_log_t;
#endif

coap_log_t coap_get_log_level(void);

void coap_set_log_level(coap_log_t level);

typedef void (*coap_log_handler_t) (coap_log_t level, const char *message);

void coap_set_log_handler(coap_log_handler_t handler);

const char *coap_package_name(void);

const char *coap_package_version(void);

#if (defined(__GNUC__))
void coap_log_impl(coap_log_t level,
              const char *format, ...) __attribute__ ((format(printf, 2, 3)));
#else
void coap_log_impl(coap_log_t level, const char *format, ...);
#endif

#ifndef coap_log

#define coap_log(level, ...) do { \
  if ((int)((level))<=(int)coap_get_log_level()) \
     coap_log_impl((level), __VA_ARGS__); \
} while(0)
#endif

#include "pdu.h"

void coap_set_show_pdu_output(int use_fprintf);

void coap_show_pdu(coap_log_t level, const coap_pdu_t *pdu);

void coap_show_tls_version(coap_log_t level);

char *coap_string_tls_version(char *buffer, size_t bufsize);

struct coap_address_t;

size_t coap_print_addr(const struct coap_address_t *address,
                       unsigned char *buffer, size_t size);

int coap_debug_set_packet_loss(const char *loss_level);

int coap_debug_send_packet(void);


#endif /* _COAP_DEBUG_H_ */