On Dec 1, 3:40 pm, [EMAIL PROTECTED] (Hal Murray) wrote: > In article <[EMAIL PROTECTED]>, > > [EMAIL PROTECTED] writes: > >Does anybody know of any *practical* samples on how to > >implement NTP/SNTP client?. The goal is to provide accurate > >time for a program/client running on Windows Vista. > > Just curious. Why do you want to roll your own as compared > to run one of the existing packages? >
Existing packages set the PC system/CMOS clock, and my application would have to read it which is not very reliable approach. My app needs direct access to periodic (5-60mins) accurate ***direct* timestamps and it will use high frequency counter provided by PC between. > >Only a narrow description focused on NTP/SNTP request/reply > >datagrams for a simple PC client, preferably in C/C++ source > >code. > > I don't know of any good code you can copy. > I does not have to be a source code but a description/algorithm by somebody who actually coded reliably. > I'd start at: > http://support.ntp.org/bin/view/Main/SoftwareDownloads > and look in the sntp directory. > I did find it. However, the packages use gz formats used by Unix. My PC does not have any utility to uncompress them. > There are two issues. (maybe more) > > One is getting the time right. > > The other is not screwing up the rest of the network > or putting an unreasonable load on the servers. > > Please be sure to read: > NTP server misuse and abuse > http://en.wikipedia.org/wiki/NTP_server_misuse_and_abuse > > -- > These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
