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From: Steve Kargl <sgk@troutmask.apl.washington.edu>
Message-Id: <199811091837.KAA10627@troutmask.apl.washington.edu>
Subject: Re: linux software installation and uname
In-Reply-To: <19981109121815.A6400@emsphone.com> from Dan Nelson at "Nov 9, 1998 12:18:15 pm"
To: dnelson@emsphone.com (Dan Nelson)
Date: Mon, 9 Nov 1998 10:37:58 -0800 (PST)
Cc: rivers@dignus.com, hackers@FreeBSD.ORG
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According to Dan Nelson:
> In the last episode (Nov 09), Steve Kargl said:
> > According to Thomas David Rivers:
> > > We've been here before.  The consensus - after considerable debate
> > > - was to not make such a change.
> > 
> > It was only a pro-active suggestion.  I was unaware of previous debate.
> > 
> > > The problem is that several automated processes - particularly WEB
> > > related - use uname to determine what kind of machines they are
> > > running on.  If we return "Linux" - then we inflate the linux
> > > numbers at the cost of our own.
> > 
> > It's better to infate the linux numbers, than to cut-off one's only
> > means to run certain software.  For example, there are no open source
> > Fortran 90 compilers.  You must purchase a commerical F90 compiler
> > and run it under linux emulation.
> 
> On the other hand, there are no good open source COBOL compilers.  We
> run Microfocus COBOL under SCO emulation.  I vote we change FreeBSD's
> uname to return "SCO_SV".  Wait.  I'm also running the BSD/OS Quake
> server.  I vote we change FreeBSD's uname to return "BSD/OS".  Wait.
> See a problem here? :)
> 

% setenv ALT_UNAME SCO_SV
% uname -s
SCO_SV
% setenv ALT_UNAME Linux
% uname -s
Linux
% setenv ALT_UNAME FooOS
% uname -s
FooOS
% unsetenv ALT_UNAME

No, I don't see a problem.  I'm suggesting a useful change to uname(1)
not a change to uname(3).

-- 
Steve

finger kargl@troutmask.apl.washington.edu
http://troutmask.apl.washington.edu/~clesceri/kargl.html

--- uname.c.orig	Mon Nov  9 08:46:41 1998
+++ uname.c	Mon Nov  9 10:28:06 1998
@@ -105,12 +105,15 @@
 	prefix = "";
 
 	if (flags & SFLAG) {
-		mib[0] = CTL_KERN;
-		mib[1] = KERN_OSTYPE;
-		len = sizeof(buf);
-		if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
-			err(1, "sysctl");
-		(void)printf("%s%.*s", prefix, (int)len, buf);
+		if (!getenv("ALT_UNAME")) {
+			mib[0] = CTL_KERN;
+			mib[1] = KERN_OSTYPE;
+			len = sizeof(buf);
+			if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
+				err(1, "sysctl");
+			(void)printf("%s%.*s", prefix, (int)len, buf);
+		} else
+			(void)printf("%s%s", prefix, getenv("ALT_UNAME"));
 		prefix = " ";
 	}
 	if (flags & NFLAG) {

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