SNTP

Simple network time protocol. More...

Collaboration diagram for SNTP:

Data Structures
struct	_sntpframe
struct	SNTP_resync_args
Defines
#define	NUT_THREAD_SNTPSTACK   256
#define	NTP_PORT   123
#define	SNTP_PORT   NTP_PORT
Typedefs
typedef struct _sntpframe	sntpframe
Functions
void	SNTP_resync (void *arg)
int	NutSNTPGetTime (uint32_t *server_adr, time_t *t)
int	NutSNTPStartThread (uint32_t server_addr, uint32_t interval)

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Detailed Description

Simple network time protocol.

Todo:

Enhance documentation.

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Define Documentation

#define NUT_THREAD_SNTPSTACK   256

Definition at line 103 of file sntp.c.

Referenced by NutSNTPStartThread().

#define NTP_PORT   123

Definition at line 126 of file sntp.c.

#define SNTP_PORT   NTP_PORT

Definition at line 127 of file sntp.c.

Referenced by NutSNTPGetTime().

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Typedef Documentation

typedef struct _sntpframe sntpframe

Definition at line 106 of file sntp.c.

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Function Documentation

void SNTP_resync

(

void *

arg

)

Definition at line 134 of file sntp.c.

References free(), SNTP_resync_args::interval, NutSleep(), NutSNTPGetTime(), NutThreadSetPriority(), SNTP_resync_args::server_addr, and stime().

Referenced by NutSNTPStartThread().

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int NutSNTPGetTime	(	uint32_t *	server_adr,
		time_t *	t
	)

Definition at line 165 of file sntp.c.

References _DAY_SEC, _LEAP_YEAR_ADJUST, calloc, free(), _sntpframe::mode, ntohl, NutUdpCreateSocket(), NutUdpDestroySocket(), NutUdpReceiveFrom(), NutUdpSendTo(), NutUdpSetSockOpt(), SNTP_PORT, SO_RCVBUF, and _sntpframe::transmit_ts_sec.

Referenced by main(), and SNTP_resync().

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int NutSNTPStartThread	(	uint32_t	server_addr,
		uint32_t	interval
	)

Definition at line 221 of file sntp.c.

References free(), SNTP_resync_args::interval, malloc(), NUT_THREAD_SNTPSTACK, NUT_THREAD_STACK_ADD, NUT_THREAD_STACK_MULT, NutThreadCreate(), SNTP_resync_args::server_addr, and SNTP_resync().

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