Re: ircd2.10.x on FreeBSD

[Tomaz Borstnar <tomaz.borstnar@xxxxxxxx>]

At 06:07 PM 12/2/98 , Genady wrote:
>Yesterday, after compiling ircd2.10.1 at *.lv servers (FreeBSD), we
>expierenced the ircd to freeze when it reached ~240 users.
Yes, same problem on OpenBSD.

>We found it to be fixed by adding in the very beginning of the file
>common/os.h
>#  define FD_SETSIZE        1024
>(the number meant be more than than defined maxconnections).

You haven't got any warnings from compiler, have you? This is not good
solution. Here is a repost of mail from 3 weeks ago - some people don't
read this list??

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Date:	Mon, 09 Nov 1998 00:37:30 +0100
To:	ircd-dev@xxxxxxx
From:	Tomaz Borstnar <tomaz.borstnar@xxxxxxxx>
Subject: Fwd: Re: setup.h created by configure running on
  openbsd-current (as of 15.10.1998) 
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This is what I got freem OpenBSD people. Since it looks useful for others
as well I am reposting this here. Does ircd use this method?

>X-From_: Todd.Miller@xxxxxxxxxxxxx Sat Nov  7 22:45:50 1998
>To:	Tomaz Borstnar <tomaz.borstnar@xxxxxxxx>
>cc:	Marco S Hyman <marc@xxxxxxxxx>, tech@xxxxxxxxxxx
>Subject: Re: setup.h created by configure running on openbsd-current (as of 
>15.10.1998) 
>Date:	Sat, 07 Nov 1998 14:45:24 -0700
>From:	"Todd C. Miller" <Todd.Miller@xxxxxxxxxxxxx>
>X-Orcpt: rfc822;tomaz.borstnar@xxxxxxxx
>
>Modern kernels are not limited by FD_SETSIZE.  However, if you want to
>override it you should do so on the command line, not in an include file.
>Ie: in CFLAGS (or CPPFLAGS) in the Makefile you would add
>-DFD_SETSIZE=1024 (or whatever value).  You may just want to complain
>to the auther that he should allocate the size of fd_set dynamically.
>Here's an example from sudo:
>
>OLD:
>    fd_set readfds;
>    FD_ZERO(&readfds);
>    FD_SET(fileno(input), &readfds);
>
>    ...
>
>    while ((n = select(fileno(input) + 1, &readfds, 0, 0, &tv)) == -1) {
>	...
>    }
>
>NEW:
>    n = howmany(fileno(input) + 1, NFDBITS) * sizeof(fd_mask);
>    if ((readfds = (fd_set *) malloc(n)) == NULL) {
>	(void) fprintf(stderr, "Cannot allocate memory\n");
>	exit(1);
>    }
>    (void) memset((VOID *)readfds, 0, n);
>    FD_SET(fileno(input), readfds);
>
>    ...
>
>    while ((n = select(fileno(input) + 1, readfds, 0, 0, &tv)) == -1) {
>	...
>    }
>
>There are many other examples throughout the OpenBSD source tree.
>
> - todd

>You can contact BOPOH (venq@xxxxxx) for any details, as he was compiling the
>ircd and he found the solution.

With this solution ircd compiles cleanly and works OK.

Tomaz
----
Tomaz Borstnar <tomaz.borstnar@xxxxxxxx>
"Love is the answer to the final question you ask" - Unknown