160 lines
4.2 KiB
C
160 lines
4.2 KiB
C
/* $NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $ */
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/*
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* Copyright (c) 1994 Winning Strategies, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Winning Strategies, Inc.
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* 4. The name of Winning Strategies, Inc. may not be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $");
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#endif /* not lint */
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#include <sys/param.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <err.h>
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#include <sys/sysctl.h>
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#include <sys/utsname.h>
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__dead static void usage(void);
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/* Note that PRINT_MACHINE_ARCH is excluded from PRINT_ALL! */
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#define PRINT_SYSNAME 0x01
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#define PRINT_NODENAME 0x02
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#define PRINT_RELEASE 0x04
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#define PRINT_VERSION 0x08
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#define PRINT_MACHINE 0x10
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#define PRINT_MACHINE_ARCH 0x20
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#define PRINT_ALL \
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(PRINT_SYSNAME|PRINT_NODENAME|PRINT_RELEASE|PRINT_VERSION|PRINT_MACHINE)
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int
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main(int argc, char **argv)
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{
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struct utsname u;
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char machine_arch[SYS_NMLN];
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int c;
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int space = 0;
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int print_mask = 0;
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(void)setlocale(LC_ALL, "");
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while ((c = getopt(argc,argv,"amnprsv")) != -1) {
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switch (c) {
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case 'a':
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print_mask |= PRINT_ALL;
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break;
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case 'm':
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print_mask |= PRINT_MACHINE;
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break;
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case 'n':
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print_mask |= PRINT_NODENAME;
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break;
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case 'p':
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print_mask |= PRINT_MACHINE_ARCH;
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break;
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case 'r':
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print_mask |= PRINT_RELEASE;
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break;
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case 's':
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print_mask |= PRINT_SYSNAME;
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break;
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case 'v':
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print_mask |= PRINT_VERSION;
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break;
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default:
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usage();
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/* NOTREACHED */
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}
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}
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if (optind != argc) {
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usage();
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/* NOTREACHED */
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}
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if (!print_mask) {
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print_mask = PRINT_SYSNAME;
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}
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if (uname(&u) != 0) {
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err(EXIT_FAILURE, "uname");
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/* NOTREACHED */
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}
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if (print_mask & PRINT_MACHINE_ARCH) {
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int mib[2] = { CTL_HW, HW_MACHINE_ARCH };
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size_t len = sizeof (machine_arch);
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if (sysctl(mib, sizeof (mib) / sizeof (mib[0]), machine_arch,
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&len, NULL, 0) < 0)
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err(EXIT_FAILURE, "sysctl");
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}
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if (print_mask & PRINT_SYSNAME) {
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space++;
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fputs(u.sysname, stdout);
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}
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if (print_mask & PRINT_NODENAME) {
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if (space++) putchar(' ');
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fputs(u.nodename, stdout);
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}
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if (print_mask & PRINT_RELEASE) {
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if (space++) putchar(' ');
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fputs(u.release, stdout);
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}
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if (print_mask & PRINT_VERSION) {
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if (space++) putchar(' ');
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fputs(u.version, stdout);
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}
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if (print_mask & PRINT_MACHINE) {
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if (space++) putchar(' ');
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fputs(u.machine, stdout);
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}
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if (print_mask & PRINT_MACHINE_ARCH) {
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if (space++) putchar(' ');
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fputs(machine_arch, stdout);
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}
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putchar('\n');
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exit(EXIT_SUCCESS);
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/* NOTREACHED */
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}
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static void
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usage(void)
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{
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fprintf(stderr, "usage: uname [-amnprsv]\n");
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exit(EXIT_FAILURE);
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}
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