sntp_client_misc.h File Reference

Helper functions for SNTP client. More...

#include "core/net.h"
#include "sntp/sntp_client.h"

Go to the source code of this file.

Functions
error_t	sntpClientOpenConnection (SntpClientContext *context)
	Open UDP connection. More...
void	sntpClientCloseConnection (SntpClientContext *context)
	Close UDP connection. More...
error_t	sntpClientSendRequest (SntpClientContext *context)
	Send request to the NTP server. More...
error_t	sntpClientReceiveResponse (SntpClientContext *context)
	Wait for NTP server's response. More...
error_t	sntpClientCheckResponse (SntpClientContext *context, const IpAddr *ipAddr, uint16_t port, const uint8_t *message, size_t length)
	Check whether the NTP response is valid. More...
error_t	sntpClientParseResponse (SntpClientContext *context, NtpTimestamp *timestamp)
	Parse NTP server's response. More...
error_t	sntpClientCheckTimeout (SntpClientContext *context)
	Determine whether a timeout error has occurred. More...

Detailed Description

Helper functions for SNTP client.

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2025 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.5.4

Definition in file sntp_client_misc.h.

Function Documentation

sntpClientCheckResponse()

error_t sntpClientCheckResponse	(	SntpClientContext *	context,
		const IpAddr *	ipAddr,
		uint16_t	port,
		const uint8_t *	message,
		size_t	length
	)

Check whether the NTP response is valid.

Parameters

[in]	context	Pointer to the SNTP client context
[in]	ipAddr	Remote IP address
[in]	port	Remote port number
[in]	message	Pointer to the NTP message
[in]	length	Length of the NTP message, in bytes

Returns

Error code

Definition at line 253 of file sntp_client_misc.c.

sntpClientCheckTimeout()

error_t sntpClientCheckTimeout

(

SntpClientContext *

context

)

Determine whether a timeout error has occurred.

Parameters

[in]

context

Pointer to the SNTP client context

Returns

Error code

Definition at line 351 of file sntp_client_misc.c.

sntpClientCloseConnection()

void sntpClientCloseConnection

(

SntpClientContext *

context

)

Close UDP connection.

Parameters

[in]

context

Pointer to the SNTP client context

Definition at line 89 of file sntp_client_misc.c.

sntpClientOpenConnection()

error_t sntpClientOpenConnection

(

SntpClientContext *

context

)

Open UDP connection.

Parameters

[in]

context

Pointer to the SNTP client context

Returns

Error code

Definition at line 51 of file sntp_client_misc.c.

sntpClientParseResponse()

error_t sntpClientParseResponse	(	SntpClientContext *	context,
		NtpTimestamp *	timestamp
	)

Parse NTP server's response.

Parameters

[in]	context	Pointer to the SNTP client context
[out]	timestamp	Pointer to the NTP timestamp

Returns

Error code

Definition at line 309 of file sntp_client_misc.c.

sntpClientReceiveResponse()

error_t sntpClientReceiveResponse

(

SntpClientContext *

context

)

Wait for NTP server's response.

Parameters

[in]

context

Pointer to the SNTP client context

Returns

Error code

Definition at line 166 of file sntp_client_misc.c.

sntpClientSendRequest()

error_t sntpClientSendRequest

(

SntpClientContext *

context

)

Send request to the NTP server.

Parameters

[in]

context

Pointer to the SNTP client context

Returns

Error code

Definition at line 107 of file sntp_client_misc.c.