API functions for logging support. More...

Macros
#define	COAP_DEBUG_FD stdout
	Used for output for `LOG_DEBUG` to `LOG_ERR`. More...

#define	COAP_ERR_FD stderr
	Used for output for `LOG_CRIT` to `LOG_EMERG`. More...

#define	coap_log(level, ...)
	Logging function. More...

Typedefs
typedef void(*	coap_log_handler_t) (coap_log_t level, const char *message)
	Logging call-back handler definition. More...

Enumerations
enum	coap_log_t { LOG_EMERG =0, LOG_ALERT, LOG_CRIT, LOG_ERR, LOG_WARNING, LOG_NOTICE, LOG_INFO, LOG_DEBUG }
	Pre-defined log levels akin to what is used in syslog. More...

Functions
coap_log_t	coap_get_log_level (void)
	Get the current logging level. More...

void	coap_set_log_level (coap_log_t level)
	Sets the log level to the specified value. More...

void	coap_set_log_handler (coap_log_handler_t handler)
	Add a custom log callback handler. More...

const char *	coap_package_name (void)
	Get the library package name. More...

const char *	coap_package_version (void)
	Get the library package version. More...

void	coap_log_impl (coap_log_t level, const char *format,...)
	Writes the given text to `COAP_ERR_FD` (for `level` <= `LOG_CRIT`) or `COAP_DEBUG_FD` (for `level` >= `LOG_ERR`). More...

void	coap_set_show_pdu_output (int use_fprintf)
	Defines the output mode for the coap_show_pdu() function. More...

void	coap_show_pdu (coap_log_t level, const coap_pdu_t *pdu)
	Display the contents of the specified `pdu`. More...

void	coap_show_tls_version (coap_log_t level)
	Display the current (D)TLS library linked with and built for version. More...

char *	coap_string_tls_version (char *buffer, size_t bufsize)
	Build a string containing the current (D)TLS library linked with and built for version. More...

size_t	coap_print_addr (const struct coap_address_t address, unsigned char buffer, size_t size)
	Print the address into the defined buffer. More...

void	coap_dtls_set_log_level (int level)
	Sets the (D)TLS logging level to the specified `level`. More...

int	coap_dtls_get_log_level (void)
	Get the current (D)TLS logging. More...

const char *	coap_session_str (const coap_session_t *session)
	Get session description. More...

const char *	coap_endpoint_str (const coap_endpoint_t *endpoint)
	Get endpoint description. More...

Detailed Description

API functions for logging support.

Macro Definition Documentation

◆ COAP_DEBUG_FD

#define COAP_DEBUG_FD stdout

Used for output for LOG_DEBUG to LOG_ERR.

Definition at line 23 of file coap_debug.h.

◆ COAP_ERR_FD

#define COAP_ERR_FD stderr

Used for output for LOG_CRIT to LOG_EMERG.

Definition at line 30 of file coap_debug.h.

◆ coap_log

#define coap_log	(	level,
		...
	)

Value:

do { \
  if ((int)((level))<=(int)coap_get_log_level()) \
     coap_log_impl((level), __VA_ARGS__); \
} while(0)

Logging function.

Writes the given text to COAP_ERR_FD (for level <= LOG_CRIT) or COAP_DEBUG_FD (for level >= LOG_ERR). The text is output only when level is below or equal to the log level that set by coap_set_log_level().

Parameters

level One of the LOG_* values.

Definition at line 122 of file coap_debug.h.

Typedef Documentation

◆ coap_log_handler_t

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

Logging call-back handler definition.

Parameters

level	One of the LOG_* values.
message	Zero-terminated string message to log.

Definition at line 73 of file coap_debug.h.

Enumeration Type Documentation

◆ coap_log_t

enum coap_log_t

Pre-defined log levels akin to what is used in syslog.

Enumerator
LOG_EMERG	Emergency.
LOG_ALERT	Alert.
LOG_CRIT	Critical.
LOG_ERR	Error.
LOG_WARNING	Warning.
LOG_NOTICE	Notice.
LOG_INFO	Information.
LOG_DEBUG	Debug.

Definition at line 41 of file coap_debug.h.

Function Documentation

◆ coap_dtls_get_log_level()

int coap_dtls_get_log_level ( void )

Get the current (D)TLS logging.

Returns: The current log level (one of LOG_*).

Get the current (D)TLS logging.

Definition at line 135 of file coap_dtls_gnutls.c.

◆ coap_dtls_set_log_level()

void coap_dtls_set_log_level ( int level )

Sets the (D)TLS logging level to the specified level.

Note: coap_log_level() will influence output if at a specified level.

Parameters

level The logging level to use - LOG_*

Sets the (D)TLS logging level to the specified level.

Definition at line 128 of file coap_dtls_gnutls.c.

◆ coap_endpoint_str()

const char* coap_endpoint_str ( const coap_endpoint_t * endpoint )

Get endpoint description.

Parameters

endpoint The CoAP endpoint.

Returns: description string.

Definition at line 980 of file coap_session.c.

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◆ coap_get_log_level()

coap_log_t coap_get_log_level ( void )

Get the current logging level.

Returns: One of the LOG_* values.

Definition at line 71 of file coap_debug.c.

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◆ coap_log_impl()

void coap_log_impl	(	coap_log_t	level,
		const char *	format,
			...
	)

Writes the given text to COAP_ERR_FD (for level <= LOG_CRIT) or COAP_DEBUG_FD (for level >= LOG_ERR).

The text is output only when level is below or equal to the log level that set by coap_set_log_level().

Internal function.

Parameters

level	One of the LOG_* values. &
format	The format string to use.

Definition at line 747 of file coap_debug.c.

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◆ coap_package_name()

const char* coap_package_name ( void )

Get the library package name.

Returns: Zero-terminated string with the name of this library.

Definition at line 57 of file coap_debug.c.

◆ coap_package_version()

const char* coap_package_version ( void )

Get the library package version.

Returns: Zero-terminated string with the library version.

Definition at line 61 of file coap_debug.c.

◆ coap_print_addr()

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

Print the address into the defined buffer.

Internal Function.

Parameters

address	The address to print.
buffer	The buffer to print into.
size	The size of the buffer to print into.

Returns: The amount written into the buffer.

Definition at line 171 of file coap_debug.c.

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◆ coap_session_str()

const char* coap_session_str ( const coap_session_t * session )

Get session description.

Parameters

session The CoAP session.

Returns: description string.

Definition at line 943 of file coap_session.c.

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◆ coap_set_log_handler()

void coap_set_log_handler ( coap_log_handler_t handler )

Add a custom log callback handler.

Parameters

handler The logging handler to use or NULL to use default handler.

Definition at line 742 of file coap_debug.c.

◆ coap_set_log_level()

void coap_set_log_level ( coap_log_t level )

Sets the log level to the specified value.

Parameters

level One of the LOG_* values.

Definition at line 76 of file coap_debug.c.

◆ coap_set_show_pdu_output()

void coap_set_show_pdu_output ( int use_fprintf )

Defines the output mode for the coap_show_pdu() function.

Parameters

use_fprintf 1 if the output is to use fprintf() (the default) 0 if the output is to use coap_log().

Definition at line 66 of file coap_debug.c.

◆ coap_show_pdu()

void coap_show_pdu	(	coap_log_t	level,
		const coap_pdu_t *	pdu
	)

Display the contents of the specified pdu.

Note: The output method of coap_show_pdu() is dependent on the setting of coap_set_show_pdu_output().

Parameters

level	The required minimum logging level.
pdu	The PDU to decode.

Definition at line 461 of file coap_debug.c.

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◆ coap_show_tls_version()

void coap_show_tls_version ( coap_log_t level )

Display the current (D)TLS library linked with and built for version.

Parameters

level The required minimum logging level.

Definition at line 651 of file coap_debug.c.

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◆ coap_string_tls_version()

char* coap_string_tls_version	(	char *	buffer,
		size_t	bufsize
	)

Build a string containing the current (D)TLS library linked with and built for version.

Parameters

buffer	The buffer to put the string into.
bufsize	The size of the buffer to put the string into.

Returns: A pointer to the provided buffer.

Definition at line 658 of file coap_debug.c.

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Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ COAP_DEBUG_FD

◆ COAP_ERR_FD

◆ coap_log

Typedef Documentation

◆ coap_log_handler_t

Enumeration Type Documentation

◆ coap_log_t

Function Documentation

◆ coap_dtls_get_log_level()

◆ coap_dtls_set_log_level()

◆ coap_endpoint_str()

◆ coap_get_log_level()

◆ coap_log_impl()

◆ coap_package_name()

◆ coap_package_version()

◆ coap_print_addr()

◆ coap_session_str()

◆ coap_set_log_handler()

◆ coap_set_log_level()

◆ coap_set_show_pdu_output()

◆ coap_show_pdu()

◆ coap_show_tls_version()

◆ coap_string_tls_version()