Date: Thu, 22 May 2008 19:30:45 +0100 From: Bruce Cran <bruce@cran.org.uk> To: John Timony <fabonacci@yahoo.com> Cc: freebsd-hackers@freebsd.org Subject: Re: How can I translate IP to hostname in C Message-ID: <4835BBD5.1050003@cran.org.uk> In-Reply-To: <839372.78392.qm@web46311.mail.sp1.yahoo.com> References: <839372.78392.qm@web46311.mail.sp1.yahoo.com>
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John Timony wrote: > Hi,guys > > I am writing a c program in FreeBSD,and I can not > translate a ip to hostname > ,i wonder if there is a function to take this job... > You could use gethostbyaddr(3), but those traditional functions have been replaced with more flexible versions such as getnameinfo(3) on newer systems. There's a good introduction to modern sockets programming at http://people.redhat.com/drepper/userapi-ipv6.html -- Bruce Cran
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