uname.c

/*
 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
 * Copyright (c) 1993-1996 Rick Sladkey <jrs@world.std.com>
 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
 * Copyright (c) 2012-2015 Dmitry V. Levin <ldv@altlinux.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "defs.h"

#include <sys/utsname.h>

SYS_FUNC(uname)
{
	struct utsname uname;

	if (entering(tcp))
		return 0;

	if (!umove_or_printaddr(tcp, tcp->u_arg[0], &uname)) {
#define PRINT_UTS_MEMBER(prefix, member)				\
	do {								\
		tprints(prefix #member "=");				\
		print_quoted_string(uname.member, sizeof(uname.member),	\
				    QUOTE_0_TERMINATED);		\
	} while (0)

		PRINT_UTS_MEMBER("{", sysname);
		PRINT_UTS_MEMBER(", ", nodename);
		if (abbrev(tcp)) {
			tprints(", ...}");
			return 0;
		}
		PRINT_UTS_MEMBER(", ", release);
		PRINT_UTS_MEMBER(", ", version);
		PRINT_UTS_MEMBER(", ", machine);
#ifdef HAVE_STRUCT_UTSNAME_DOMAINNAME
		PRINT_UTS_MEMBER(", ", domainname);
#endif
		tprints("}");
	}

	return 0;
}