Data Structures
struct	NETW_MSG
	network message, array of char and int More...

Macros
#define	NETMSG_BOX 8
	Network Message is box retrieving reply: (int x , int y , int z , N_STR *data )

#define	NETMSG_GET_BOX 7
	Network Message is box retrieve: int x , int y , int z.

#define	NETMSG_IDENT_REPLY_NOK 2
	Network Message is identification reply NON OK: (int)type , (int)id , (N_STR )name , (N_STR )password.

#define	NETMSG_IDENT_REPLY_OK 1
	Network Message is identification reply OK : (int)type , (int)id , (N_STR )name , (N_STR )password.

#define	NETMSG_IDENT_REQUEST 0
	Network Message is identification request: (int)type , (int)id , (N_STR )name , (N_STR )password.

#define	NETMSG_PING_REPLY 6
	Network Message is ping reply: (int)type , (int)id_from , (int)id_to.

#define	NETMSG_PING_REQUEST 5
	Network Message is ping request: (int)type , (int)id_from , (int)id_to.

#define	NETMSG_POSITION 4
	Network Message position: (int)type , (int)id , (int)X , (int)Y , (int)x_shift , (int)y_shift ,(int)vx ,(int)vy , (int)speed , (int)acceleration , (int)time_stamp.

#define	NETMSG_QUIT 9
	Network asking for exit.

#define	NETMSG_STRING 3
	Network Message is string: (int)type , (int)id , (N_STR )name , (N_STR )chan , (N_STR *)text , (int)color.

Functions
int	add_int_to_msg (NETW_MSG *msg, int value)
	Add an int to the int list int the message.

int	add_nb_to_msg (NETW_MSG *msg, double value)
	Add an float to the message.

int	add_nstrdup_to_msg (NETW_MSG msg, N_STR str)
	Add a copy of str to the string list in the message.

int	add_nstrptr_to_msg (NETW_MSG msg, N_STR str)
	Add a string to the string list in the message.

int	add_strdup_to_msg (NETW_MSG msg, const char str)
	Add a copy of char *str to the string list in the message.

int	create_msg (NETW_MSG **msg)
	Create a NETW_MSG *object.

int	delete_msg (NETW_MSG **msg)
	Delete a NETW_MSG *object.

double	double_swap (double value)
	Swap bytes endiannes for a double.

int	empty_msg (NETW_MSG **msg)
	Empty a NETW_MSG *object.

int	get_int_from_msg (NETW_MSG msg, int value)
	Get a number from a message number list.

int	get_nb_from_msg (NETW_MSG msg, double value)
	Get a number from a message number list.

int	get_nstr_from_msg (NETW_MSG msg, N_STR *str)
	Get a string from a message string list.

int	get_str_from_msg (NETW_MSG msg, char *str)
	Get a string from a message string list.

double	htond (double value)
	If needed swap bytes for a double.

NETW_MSG *	make_msg_from_str (N_STR *str)
	Make a single message of the string.

N_STR *	make_str_from_msg (NETW_MSG *msg)
	Make a single string of the message.

N_STR *	netmsg_make_ident (int type, int id, N_STR name, N_STR passwd)
	Add a formatted NETWMSG_IDENT message to the specified network.

N_STR *	netmsg_make_ping (int type, int id_from, int id_to, int time)
	Make a ping message to send to a network.

N_STR *	netmsg_make_position_msg (int id, double X, double Y, double vx, double vy, double acc_x, double acc_y, int time_stamp)
	make a network NETMSG_POSITION message with given parameters

N_STR *	netmsg_make_quit_msg (void)
	make a generic network NETMSG_QUIT message

N_STR *	netmsg_make_string_msg (int id_from, int id_to, N_STR name, N_STR chan, N_STR *txt, int color)
	make a network NETMSG_STRING message with given parameters

int	netw_get_ident (N_STR msg, int type, int ident, N_STR name, N_STR *passwd)
	Retrieves identification from netwmsg.

int	netw_get_ping (N_STR msg, int type, int from, int to, int *time)
	Retrieves a ping travel elapsed time.

int	netw_get_position (N_STR msg, int id, double X, double Y, double vx, double vy, double acc_x, double acc_y, int *time_stamp)
	Retrieves position from netwmsg.

int	netw_get_quit (N_STR *msg)
	get a formatted NETWMSG_QUIT message from the specified network

int	netw_get_string (N_STR msg, int id, N_STR name, N_STR chan, N_STR *txt, int color)
	Retrieves string from netwmsg.

int	netw_msg_get_type (N_STR *msg)
	Get the type of message without killing the first number. Use with netw_get_XXX.

double	ntohd (double value)
	If needed swap bytes for a double.

Detailed Description

Data Structure Documentation

◆ NETW_MSG

struct NETW_MSG

network message, array of char and int

Examples: ex_network.h.

Definition at line 48 of file n_network_msg.h.

Collaboration diagram for NETW_MSG:

Data Fields
LIST *	tabflt	array of casted double value
LIST *	tabint	array of int
LIST *	tabstr	array of N_STR

Macro Definition Documentation

◆ NETMSG_BOX

#define NETMSG_BOX 8

Network Message is box retrieving reply: (int x , int y , int z , N_STR *data )

Definition at line 43 of file n_network_msg.h.

◆ NETMSG_GET_BOX

#define NETMSG_GET_BOX 7

Network Message is box retrieve: int x , int y , int z.

Definition at line 41 of file n_network_msg.h.

◆ NETMSG_IDENT_REPLY_NOK

#define NETMSG_IDENT_REPLY_NOK 2

Network Message is identification reply NON OK: (int)type , (int)id , (N_STR *)name , (N_STR *)password.

Definition at line 31 of file n_network_msg.h.

◆ NETMSG_IDENT_REPLY_OK

#define NETMSG_IDENT_REPLY_OK 1

Network Message is identification reply OK : (int)type , (int)id , (N_STR *)name , (N_STR *)password.

Definition at line 29 of file n_network_msg.h.

◆ NETMSG_IDENT_REQUEST

#define NETMSG_IDENT_REQUEST 0

Network Message is identification request: (int)type , (int)id , (N_STR *)name , (N_STR *)password.

Definition at line 27 of file n_network_msg.h.

◆ NETMSG_PING_REPLY

#define NETMSG_PING_REPLY 6

Network Message is ping reply: (int)type , (int)id_from , (int)id_to.

Definition at line 39 of file n_network_msg.h.

◆ NETMSG_PING_REQUEST

#define NETMSG_PING_REQUEST 5

Network Message is ping request: (int)type , (int)id_from , (int)id_to.

Definition at line 37 of file n_network_msg.h.

◆ NETMSG_POSITION

#define NETMSG_POSITION 4

Network Message position: (int)type , (int)id , (int)X , (int)Y , (int)x_shift , (int)y_shift ,(int)vx ,(int)vy , (int)speed , (int)acceleration , (int)time_stamp.

Definition at line 35 of file n_network_msg.h.

◆ NETMSG_QUIT

#define NETMSG_QUIT 9

Network asking for exit.

Definition at line 45 of file n_network_msg.h.

◆ NETMSG_STRING

#define NETMSG_STRING 3

Network Message is string: (int)type , (int)id , (N_STR *)name , (N_STR *)chan , (N_STR *)text , (int)color.

Definition at line 33 of file n_network_msg.h.

Function Documentation

◆ add_int_to_msg()

int add_int_to_msg	(	NETW_MSG *	msg,
		int	value
	)

Add an int to the int list int the message.

Parameters

msg	A NETW_MSG *object to complete with the value
value	The value to add to the message

Returns: TRUE or FALSE

Definition at line 153 of file n_network_msg.c.

References __n_assert, list_push(), Malloc, and NETW_MSG::tabint.

Referenced by make_msg_from_str(), netmsg_make_ident(), netmsg_make_ping(), netmsg_make_position_msg(), netmsg_make_quit_msg(), netmsg_make_string_msg(), and send_net_datas().

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◆ add_nb_to_msg()

int add_nb_to_msg	(	NETW_MSG *	msg,
		double	value
	)

Add an float to the message.

Parameters

msg	A NETW_MSG *object to complete with the value
value	The value to add to the message

Warning: The floating value will be rounded by the network serialization !

Returns: TRUE or FALSE

Definition at line 134 of file n_network_msg.c.

References __n_assert, list_push(), Malloc, and NETW_MSG::tabflt.

Referenced by make_msg_from_str(), and netmsg_make_position_msg().

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◆ add_nstrdup_to_msg()

int add_nstrdup_to_msg	(	NETW_MSG *	msg,
		N_STR *	str
	)

Add a copy of str to the string list in the message.

Parameters

msg	A NETW_MSG *object to complete with the string
str	The string to add to the message

Returns: TRUE or FALSE

Definition at line 185 of file n_network_msg.c.

References __n_assert, N_STR::data, free_nstr_ptr(), list_push(), nstrdup(), and NETW_MSG::tabstr.

Referenced by netmsg_make_ident(), netmsg_make_string_msg(), and send_net_datas().

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◆ add_nstrptr_to_msg()

int add_nstrptr_to_msg	(	NETW_MSG *	msg,
		N_STR *	str
	)

Add a string to the string list in the message.

Parameters

msg	A NETW_MSG *object to complete with the string
str	The string to add to the message

Returns: TRUE or FALSE

Definition at line 172 of file n_network_msg.c.

References __n_assert, N_STR::data, free_nstr_ptr(), list_push(), and NETW_MSG::tabstr.

Referenced by make_msg_from_str(), and send_net_datas().

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◆ add_strdup_to_msg()

int add_strdup_to_msg	(	NETW_MSG *	msg,
		const char *	str
	)

Add a copy of char *str to the string list in the message.

Parameters

msg	A NETW_MSG *object to complete with the string
str	The string to add to the message

Returns: TRUE or FALSE

Definition at line 200 of file n_network_msg.c.

References __n_assert, char_to_nstr(), free_nstr_ptr(), list_push(), and NETW_MSG::tabstr.

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◆ create_msg()

int create_msg ( NETW_MSG ** msg )

Create a NETW_MSG *object.

Parameters

msg	A NETW_MSG *object

Returns: TRUE or FALSE

Definition at line 69 of file n_network_msg.c.

References __n_assert, Free, list_destroy(), LOG_ERR, Malloc, MAX_LIST_ITEMS, n_log, and new_generic_list().

Referenced by make_msg_from_str(), netmsg_make_ident(), netmsg_make_ping(), netmsg_make_position_msg(), netmsg_make_quit_msg(), netmsg_make_string_msg(), and send_net_datas().

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◆ delete_msg()

int delete_msg ( NETW_MSG ** msg )

Delete a NETW_MSG *object.

Parameters

msg	A NETW_MSG *object to delete

Returns: TRUE or FALSE

Definition at line 93 of file n_network_msg.c.

References Free, list_destroy(), LOG_ERR, and n_log.

Referenced by get_net_datas(), netmsg_make_ident(), netmsg_make_ping(), netmsg_make_position_msg(), netmsg_make_quit_msg(), netmsg_make_string_msg(), netw_get_ident(), netw_get_ping(), netw_get_position(), netw_get_quit(), netw_get_string(), and send_net_datas().

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◆ double_swap()

double double_swap ( double value )

Swap bytes endiannes for a double.

Parameters

value The double to swap

Returns: A swapped double

Definition at line 18 of file n_network_msg.c.

Referenced by htond(), and ntohd().

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◆ empty_msg()

int empty_msg ( NETW_MSG ** msg )

Empty a NETW_MSG *object.

Parameters

msg	A NETW_MSG **object

Returns: TRUE or FALSE

Definition at line 117 of file n_network_msg.c.

References __n_assert, and list_empty().

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◆ get_int_from_msg()

int get_int_from_msg	(	NETW_MSG *	msg,
		int *	value
	)

Get a number from a message number list.

Parameters

msg	A NETW_MSG *object for extracting number
value	A int value where you want to store the result

Returns: A pointer to the N_STR, Do not forget to free it !

Definition at line 236 of file n_network_msg.c.

References __n_assert, Free, list_shift, and NETW_MSG::tabint.

Referenced by get_net_datas(), netw_get_ident(), netw_get_ping(), netw_get_position(), netw_get_quit(), and netw_get_string().

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◆ get_nb_from_msg()

int get_nb_from_msg	(	NETW_MSG *	msg,
		double *	value
	)

Get a number from a message number list.

Parameters

msg	A NETW_MSG *object for extracting number
value	A int value where you want to store the result

Returns: A pointer to the N_STR, Do not forget to free it !

Definition at line 216 of file n_network_msg.c.

References __n_assert, Free, list_shift, and NETW_MSG::tabflt.

Referenced by netw_get_position().

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◆ get_nstr_from_msg()

int get_nstr_from_msg	(	NETW_MSG *	msg,
		N_STR **	value
	)

Get a string from a message string list.

Parameters

msg	The NETW_MSG where you have a str to get
value	A pointer to a NULL N_STR for storage

Returns: TRUE or FALSE

Definition at line 257 of file n_network_msg.c.

References __n_assert, list_shift, LOG_ERR, n_log, and NETW_MSG::tabstr.

Referenced by get_net_datas(), netw_get_ident(), and netw_get_string().

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◆ get_str_from_msg()

int get_str_from_msg	(	NETW_MSG *	msg,
		char **	value
	)

Get a string from a message string list.

Parameters

msg	The NETW_MSG where you have a str to get
value	A pointer to a NULL N_STR for storage

Returns: TRUE or FALSE

Definition at line 279 of file n_network_msg.c.

References __n_assert, N_STR::data, Free, list_shift, LOG_ERR, n_log, and NETW_MSG::tabstr.

◆ htond()

double htond ( double value )

If needed swap bytes for a double.

Parameters

value The value to eventually swap

Returns: The modified value

Definition at line 41 of file n_network_msg.c.

References double_swap().

Referenced by make_str_from_msg().

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◆ make_msg_from_str()

NETW_MSG * make_msg_from_str ( N_STR * str )

Make a single message of the string.

Parameters

str	A N_STR structure to convert into a NETW_MSG one

Returns: A pointer to the generated NETW_MSG, do not forget to free it after use !

Definition at line 427 of file n_network_msg.c.

References __n_assert, add_int_to_msg(), add_nb_to_msg(), add_nstrptr_to_msg(), create_msg(), N_STR::data, N_STR::length, Malloc, ntohd(), and N_STR::written.

Referenced by get_net_datas(), netw_get_ident(), netw_get_ping(), netw_get_position(), netw_get_quit(), and netw_get_string().

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◆ make_str_from_msg()

N_STR * make_str_from_msg ( NETW_MSG * msg )

Make a single string of the message.

Parameters

msg	A NETW_MSG structure to convert into a N_STR one

Returns: A pointer to the generated N_STR, do not forget to free it after use !

Definition at line 302 of file n_network_msg.c.

References __n_assert, N_STR::data, Free, free_nstr, htond(), N_STR::length, LOG_ERR, Malloc, n_log, LIST::nb_items, LIST_NODE::next, LIST_NODE::ptr, LIST::start, NETW_MSG::tabflt, NETW_MSG::tabint, NETW_MSG::tabstr, and N_STR::written.

Referenced by netmsg_make_ident(), netmsg_make_ping(), netmsg_make_position_msg(), netmsg_make_quit_msg(), netmsg_make_string_msg(), and send_net_datas().

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◆ netmsg_make_ident()

N_STR * netmsg_make_ident	(	int	type,
		int	id,
		N_STR *	name,
		N_STR *	passwd
	)

Add a formatted NETWMSG_IDENT message to the specified network.

Parameters

type	type of identification ( NETW_IDENT_REQUEST , NETW_IDENT_NEW )
id	The ID of the sending client
name	Username
passwd	Password

Returns: N_STR *netmsg or NULL

Definition at line 554 of file n_network_msg.c.

References __n_assert, add_int_to_msg(), add_nstrdup_to_msg(), create_msg(), delete_msg(), and make_str_from_msg().

Referenced by netw_send_ident().

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◆ netmsg_make_ping()

N_STR * netmsg_make_ping	(	int	type,
		int	id_from,
		int	id_to,
		int	time
	)

Make a ping message to send to a network.

Parameters

type	NETW_PING_REQUEST or NETW_PING_REPLY
id_from	Identifiant of the sender
id_to	Identifiant of the destination, -1 if the serveur itslef is targetted
time	The time it was when the ping was sended

Returns: A N_STR *message or NULL

Definition at line 514 of file n_network_msg.c.

References __n_assert, add_int_to_msg(), create_msg(), delete_msg(), and make_str_from_msg().

Referenced by netw_send_ping().

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◆ netmsg_make_position_msg()

N_STR * netmsg_make_position_msg	(	int	id,
		double	X,
		double	Y,
		double	vx,
		double	vy,
		double	acc_x,
		double	acc_y,
		int	time_stamp
	)

make a network NETMSG_POSITION message with given parameters

Parameters

id	The ID of the sending client
X	x position
Y	y position
vx	x speed
vy	y speed
acc_x	x acceleration
acc_y	y acceleration
time_stamp	time when the position were copier

Returns: N_STR *netmsg or NULL

Definition at line 597 of file n_network_msg.c.

References __n_assert, add_int_to_msg(), add_nb_to_msg(), create_msg(), delete_msg(), make_str_from_msg(), and NETMSG_POSITION.

Referenced by netw_send_position().

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◆ netmsg_make_quit_msg()

N_STR * netmsg_make_quit_msg ( void )

make a generic network NETMSG_QUIT message

Returns: N_STR *netmsg or NULL

Definition at line 708 of file n_network_msg.c.

References __n_assert, add_int_to_msg(), create_msg(), delete_msg(), make_str_from_msg(), and NETMSG_QUIT.

Referenced by netw_send_quit().

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◆ netmsg_make_string_msg()

N_STR * netmsg_make_string_msg	(	int	id_from,
		int	id_to,
		N_STR *	name,
		N_STR *	chan,
		N_STR *	txt,
		int	color
	)

make a network NETMSG_STRING message with given parameters

Parameters

id_from	The ID of the sending client
id_to	id of the destination
name	name of the user
chan	targeted channel
txt	text to send
color	color of the text

Returns: N_STR *netmsg or NULL

Definition at line 657 of file n_network_msg.c.

References __n_assert, add_int_to_msg(), add_nstrdup_to_msg(), create_msg(), delete_msg(), make_str_from_msg(), and NETMSG_STRING.

Referenced by netw_send_string_to(), and netw_send_string_to_all().

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◆ netw_get_ident()

int netw_get_ident	(	N_STR *	msg,
		int *	type,
		int *	ident,
		N_STR **	name,
		N_STR **	passwd
	)

Retrieves identification from netwmsg.

Parameters

msg	The source string from which we are going to extract the data
type	NETMSG_IDENT_NEW , NETMSG_IDENT_REPLY_OK , NETMSG_IDENT_REPLY_NOK , NETMSG_IDENT_REQUEST
ident	ID for the user
name	Name of the user
passwd	Password of the user

Returns: TRUE or FALSE

Definition at line 757 of file n_network_msg.c.

References __n_assert, delete_msg(), get_int_from_msg(), get_nstr_from_msg(), LOG_ERR, make_msg_from_str(), n_log, NETMSG_IDENT_REPLY_NOK, NETMSG_IDENT_REPLY_OK, and NETMSG_IDENT_REQUEST.

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◆ netw_get_ping()

int netw_get_ping	(	N_STR *	msg,
		int *	type,
		int *	from,
		int *	to,
		int *	time
	)

Retrieves a ping travel elapsed time.

Parameters

msg	The source string from which we are going to extract the data
type	NETW_PING_REQUEST or NETW_PING_REPLY
from	Identifiant of the sender
to	Targetted Identifiant, -1 for server ping
time	The time it was when the ping was sended

Returns: TRUE or FALSE

Definition at line 879 of file n_network_msg.c.

References __n_assert, delete_msg(), get_int_from_msg(), make_msg_from_str(), NETMSG_PING_REPLY, and NETMSG_PING_REQUEST.

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◆ netw_get_position()

int netw_get_position	(	N_STR *	msg,
		int *	id,
		double *	X,
		double *	Y,
		double *	vx,
		double *	vy,
		double *	acc_x,
		double *	acc_y,
		int *	time_stamp
	)

Retrieves position from netwmsg.

Parameters

msg	The source string from which we are going to extract the data
id
X	X position inside a big grid
Y	Y position inside a big grid
vx	X speed
vy	Y speed
acc_x	X acceleration
acc_y	Y acceleration
time_stamp	Current Time when it was sended (for some delta we would want to compute )

Returns: TRUE or FALSE

Definition at line 796 of file n_network_msg.c.

References __n_assert, delete_msg(), get_int_from_msg(), get_nb_from_msg(), make_msg_from_str(), and NETMSG_POSITION.

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◆ netw_get_quit()

int netw_get_quit ( N_STR * msg )

get a formatted NETWMSG_QUIT message from the specified network

Parameters

msg	The source string from which we are going to extract the data

Returns: TRUE or FALSE

Definition at line 909 of file n_network_msg.c.

References __n_assert, delete_msg(), get_int_from_msg(), make_msg_from_str(), and NETMSG_QUIT.

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◆ netw_get_string()

int netw_get_string	(	N_STR *	msg,
		int *	id,
		N_STR **	name,
		N_STR **	chan,
		N_STR **	txt,
		int *	color
	)

Retrieves string from netwmsg.

Parameters

msg	The source string from which we are going to extract the data
id	The ID of the sending client
name	Name of user
chan	Target Channel, if any. Pass "ALL" to target the default channel
txt	The text to send
color	The color of the text

Returns: TRUE or FALSE

Definition at line 839 of file n_network_msg.c.

References __n_assert, delete_msg(), get_int_from_msg(), get_nstr_from_msg(), make_msg_from_str(), and NETMSG_STRING.

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◆ netw_msg_get_type()

int netw_msg_get_type ( N_STR * msg )

Get the type of message without killing the first number. Use with netw_get_XXX.

Parameters

msg	A char *msg_object you want to have type

Returns: The value corresponding to the type or FALSE

Definition at line 731 of file n_network_msg.c.

References __n_assert, and N_STR::data.

Referenced by manage_client().

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◆ ntohd()

double ntohd ( double value )

If needed swap bytes for a double.

Parameters

value The value to eventually swap

Returns: The modified value

Definition at line 55 of file n_network_msg.c.

References double_swap().

Referenced by make_msg_from_str().

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Data Structures

Macros

Functions

Detailed Description

Data Structure Documentation

◆ NETW_MSG

Macro Definition Documentation

◆ NETMSG_BOX

◆ NETMSG_GET_BOX

◆ NETMSG_IDENT_REPLY_NOK

◆ NETMSG_IDENT_REPLY_OK

◆ NETMSG_IDENT_REQUEST

◆ NETMSG_PING_REPLY

◆ NETMSG_PING_REQUEST

◆ NETMSG_POSITION

◆ NETMSG_QUIT

◆ NETMSG_STRING

Function Documentation

◆ add_int_to_msg()

◆ add_nb_to_msg()

◆ add_nstrdup_to_msg()

◆ add_nstrptr_to_msg()

◆ add_strdup_to_msg()

◆ create_msg()

◆ delete_msg()

◆ double_swap()

◆ empty_msg()

◆ get_int_from_msg()

◆ get_nb_from_msg()

◆ get_nstr_from_msg()

◆ get_str_from_msg()

◆ htond()

◆ make_msg_from_str()

◆ make_str_from_msg()

◆ netmsg_make_ident()

◆ netmsg_make_ping()

◆ netmsg_make_position_msg()

◆ netmsg_make_quit_msg()

◆ netmsg_make_string_msg()

◆ netw_get_ident()

◆ netw_get_ping()

◆ netw_get_position()

◆ netw_get_quit()

◆ netw_get_string()

◆ netw_msg_get_type()

◆ ntohd()