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Re: gethosybyname & gethostbyname_r

From: Ulrich Drepper
Subject: Re: gethosybyname & gethostbyname_r
Date: 19 Jan 2001 08:48:39 -0800
User-agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.1 (Capitol Reef)

Phillip Partridge <address@hidden> writes:

> That piece of code is just a small snippet  where I believe the leak to
> orginate from. If I link in any one of the free memory leak tools
> (dmalloc, debauch, mpatrol) then when the code exits I get a log file
> stating that 6324 bytes were not freed.

This does not mean anything.  These tools simply don't do the
necessary things.  Plus, your program is not freeing the resources

> Its not that much of a leak, I know. I was just curious as to why it was
> happening and things.

There is no leak with the services I'm using (only nss_files).  If you
would understand only a tiny little bit of the issue and would read a
bit in the manual you would write

#include <mcheck.h>
int main(int argc, char **argv)
        struct hostent *h;
        h = gethostent("host name in here");


$ MALLOC_TRACE=OUT ./program
$ mtrace program OUT

and you would see what really happens.  And note the endhostent() call
I had to insert to correct your mistakes.

> Why are people in this list so agressive.

The only one who is agressive is you.  You come in, don't even
understand the problem, and call people stupid.

---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------

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