Xref: utzoo comp.mail.elm:959 comp.unix.xenix:4317
Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!cmcl2!phri!marob!daveh
From: daveh@marob.MASA.COM (Dave Hammond)
Newsgroups: comp.mail.elm,comp.unix.xenix
Subject: Re: Elm bug
Message-ID: <433@marob.MASA.COM>
Date: 29 Dec 88 19:17:32 GMT
References: <369@ispi.UUCP>
Reply-To: daveh@marob.masa.com (Dave Hammond)
Organization: ESCC  New York City
Lines: 46

In article <369@ispi.UUCP> jbayer@ispi.UUCP (Jonathan Bayer) writes:
>It seems that elm REQUIRES that the system node name be available
>via uname().  Since my system name is "ispi", and there is a bug :-( in
>the SCO configure utility which requires that the node name be either 0
>characters long or >4 characters long, I have not compiled a node name
>into the system.

Thanks for confirming why Configure fails when I try to install "cmx1"
as a client machine's node name!

>It might be a good idea to add an optional define in one of the header
>files (sysdefs.h is a good one) which would override any name obtained
>from either uname or gethostname.  This would be good for those people
>who for whatever reason can not set the node name in the kernel.

Toward that end, I applied the following change to gethostname() in
opt_utils.c (sorry, its not a diff 'cos I'm not running the most current
version of Elm):

/* old version simply read:

	hostname[size - 1] = '\0';

*/

/* replace with: */

	if (*name.nodename)
		hostname[size - 1] = '\0';
	else {
		FILE *fp = fopen("/etc/systemid", "r");
		if (fp != (FILE *)0) {
			if (fgets(hostname, size-1, fp))
				hostname[ strlen(hostname)-1 ] = '\0';
			(void) fclose(fp);
			}
		}

This change grabs the contents of /etc/systemid if uname() returns an
empty string.

Hope this helps.

--
Dave Hammond
...!uunet!masa.com!{marob,dsix2}!daveh