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37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
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/* ntptrace.h,v 3.1 1993/07/06 01:09:39 jbj Exp
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* ntptrace.h - declarations for the ntptrace program
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*/
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/*
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* The server structure is a much simplified version of the
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* peer structure, for ntptrace's use. Since we always send
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* in client mode and expect to receive in server mode, this
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* leaves only a very limited number of things we need to
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* remember about the server.
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*/
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struct server {
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struct sockaddr_in srcadr; /* address of remote host */
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u_char leap; /* leap indicator */
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u_char stratum; /* stratum of remote server */
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s_char precision; /* server's clock precision */
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u_fp rootdelay; /* distance from primary clock */
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u_fp rootdispersion; /* peer clock dispersion */
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U_LONG refid; /* peer reference ID */
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l_fp reftime; /* time of peer's last update */
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l_fp org; /* peer's originate time stamp */
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l_fp xmt; /* transmit time stamp */
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u_fp delay; /* filter estimated delay */
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u_fp dispersion; /* filter estimated dispersion */
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l_fp offset; /* filter estimated clock offset */
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};
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/*
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* Since ntptrace isn't aware of some of the things that normally get
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* put in an NTP packet, we fix some values.
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*/
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#define NTPTRACE_PRECISION (-6) /* use this precision */
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#define NTPTRACE_DISTANCE FP_SECOND /* distance is 1 sec */
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#define NTPTRACE_DISP FP_SECOND /* so is the dispersion */
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#define NTPTRACE_REFID (0) /* reference ID to use */
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