cd5105b1db
Switch to NTP for presend as the echo service (RFC 862) is rarely enabled. When presend is active, send an NTP client packet to the server/peer and ignore the reply. This also fixes presend with separate client sockets. The destination port can't be changed on connected sockets, so the echo packet was sent to the NTP port instead of the echo port.
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Richard P. Curnow 1997-2002
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* Copyright (C) Miroslav Lichvar 2014
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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This is the header file for the NTP socket I/O bits.
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*/
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#ifndef GOT_NTP_IO_H
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#define GOT_NTP_IO_H
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#include "ntp.h"
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#include "addressing.h"
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/* Function to initialise the module. */
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extern void NIO_Initialise(int family);
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/* Function to finalise the module */
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extern void NIO_Finalise(void);
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/* Function to obtain a socket for sending client packets */
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extern int NIO_GetClientSocket(NTP_Remote_Address *remote_addr);
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/* Function to obtain a socket for sending server/peer packets */
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extern int NIO_GetServerSocket(NTP_Remote_Address *remote_addr);
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/* Function to close a socket returned by NIO_GetClientSocket() */
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extern void NIO_CloseClientSocket(int sock_fd);
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/* Function to check if socket is a server socket */
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extern int NIO_IsServerSocket(int sock_fd);
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/* Function to transmit a packet */
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extern void NIO_SendNormalPacket(NTP_Packet *packet, NTP_Remote_Address *remote_addr, NTP_Local_Address *local_addr);
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/* Function to transmit an authenticated packet */
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extern void NIO_SendAuthenticatedPacket(NTP_Packet *packet, NTP_Remote_Address *remote_addr, NTP_Local_Address *local_addr, int auth_len);
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#endif /* GOT_NTP_IO_H */
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