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<TITLE>sane-devel: Re: saned doesn't find sane service...</TITLE>
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<META NAME="Author" CONTENT="Martin Heinen (mheinen0@wiesbaden-online.de)">
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<META NAME="Subject" CONTENT="Re: saned doesn't find sane service...">
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<H1>Re: saned doesn't find sane service...</H1>
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<!-- received="Tue Jun 6 19:11:48 2000" -->
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<STRONG>From:</STRONG> Martin Heinen (<A HREF="mailto:mheinen0@wiesbaden-online.de?Subject=Re:%20saned%20doesn't%20find%20sane%20service...&In-Reply-To=<20000607002621.A55411@Moses.earth.sol>"><EM>mheinen0@wiesbaden-online.de</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Jun 06 2000 - 15:26:22 PDT
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<LI><STRONG>Previous message:</STRONG> <A HREF="0049.html">khk@khk.net: "Re: Latest sane CVS, Epson GT7000 and xsane"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0044.html">Petter Reinholdtsen: "Re: saned doesn't find sane service..."</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0103.html">Jochen Eisinger: "Re: saned doesn't find sane service..."</A>
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<HR NOSHADE><P>
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<P>
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<EM>> > But there is the apropriate line in /etc/services... however the man
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</EM><BR>
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<EM>> > page for getservbyname() says that setservent(int) has to be callen
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</EM><BR>
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<EM>> > before getservbyname() which is used to determine the port
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</EM><BR>
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<EM>> > number. When I'm surrounding the getservbyname() call with
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</EM><BR>
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<EM>> > setservent(int) and endservent(), everything works fine. It looks
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</EM><BR>
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<EM>> > something like:
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Which platform is this? I noticed similar, but totaly clear,
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</EM><BR>
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<EM>> information in the Linux RedHat 6.2 man page. This is the first time
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</EM><BR>
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<EM>> I hear about the setservent() and endservent() functions. Do they
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</EM><BR>
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<EM>> exist on all platforms?
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</EM><BR>
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<P>I re-read my 3.4R FreeBSD manual pages and the functions appeared
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<BR>
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in 4.2BSD. The manual pages only state that the database files
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<BR>
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(e.g. /etc/services) will stay open when setservent() was called
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<BR>
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with a non-zero argument. They _do_not_ state that you
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<BR>
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have to open the databse with setservent() when
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<BR>
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using getservbyname().
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<BR>
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<P><EM>> If anyone can verify this, I'll add it to the CVS repository. I find
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</EM><BR>
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<EM>> this very strange, as I know this have been working earlier.
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</EM><BR>
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<P>According to the GNU C Library Reference Manual (2.00 beta)
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<BR>
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one should use setservent() / endservent() when querying the
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<BR>
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Services Database with getservent().
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<BR>
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There is no reason to call the two functions when
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<BR>
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using getservbyname() to retrieve records. Also Stevens in
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<BR>
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his book 'UNIX Network Programming' didn't use the two
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<BR>
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functions to surround getservbyname().
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<BR>
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<P>HTH
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<BR>
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Martin
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<BR>
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<P><PRE>
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--
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use Perl;
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<P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20saned%20doesn't%20find%20sane%20service...&In-Reply-To=<20000607002621.A55411@Moses.earth.sol>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0051.html">Dave Hill: "Re: digital camera drivers"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0044.html">Petter Reinholdtsen: "Re: saned doesn't find sane service..."</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0103.html">Jochen Eisinger: "Re: saned doesn't find sane service..."</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Tue Jun 06 2000 - 19:13:23 PDT</EM>
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