minix/usr.bin/uname/uname.c
Thomas Cort c0c5113989 Importing usr.bin/uname
Change-Id: I4c316221e288edd839e26a2af4cb59f28bf722c1
2014-03-01 09:04:55 +01:00

175 lines
4.6 KiB
C

/* $NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $ */
/*
* Copyright (c) 1994 Winning Strategies, Inc.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Winning Strategies, Inc.
* 4. The name of Winning Strategies, Inc. 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 <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $");
#endif /* not lint */
#include <sys/param.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#ifdef __minix
#include <string.h>
#else /* !__minix */
#include <sys/sysctl.h>
#endif /* !__minix */
#include <sys/utsname.h>
__dead static void usage(void);
/* Note that PRINT_MACHINE_ARCH is excluded from PRINT_ALL! */
#define PRINT_SYSNAME 0x01
#define PRINT_NODENAME 0x02
#define PRINT_RELEASE 0x04
#define PRINT_VERSION 0x08
#define PRINT_MACHINE 0x10
#define PRINT_MACHINE_ARCH 0x20
#define PRINT_ALL \
(PRINT_SYSNAME|PRINT_NODENAME|PRINT_RELEASE|PRINT_VERSION|PRINT_MACHINE)
int
main(int argc, char **argv)
{
struct utsname u;
char machine_arch[SYS_NMLN];
int c;
int space = 0;
int print_mask = 0;
(void)setlocale(LC_ALL, "");
while ((c = getopt(argc,argv,"amnprsv")) != -1) {
switch (c) {
case 'a':
print_mask |= PRINT_ALL;
break;
case 'm':
print_mask |= PRINT_MACHINE;
break;
case 'n':
print_mask |= PRINT_NODENAME;
break;
case 'p':
print_mask |= PRINT_MACHINE_ARCH;
break;
case 'r':
print_mask |= PRINT_RELEASE;
break;
case 's':
print_mask |= PRINT_SYSNAME;
break;
case 'v':
print_mask |= PRINT_VERSION;
break;
default:
usage();
/* NOTREACHED */
}
}
if (optind != argc) {
usage();
/* NOTREACHED */
}
if (!print_mask) {
#ifdef __minix
setprogname(argv[0]);
/* When executed via the `arch` symlink, do `uname -p` */
if (getprogname() != NULL && strcmp(getprogname(), "arch") == 0)
print_mask = PRINT_MACHINE_ARCH;
else
#endif /* __minix */
print_mask = PRINT_SYSNAME;
}
if (uname(&u) != 0) {
err(EXIT_FAILURE, "uname");
/* NOTREACHED */
}
if (print_mask & PRINT_MACHINE_ARCH) {
#ifdef __minix
strlcpy(machine_arch, u.arch, sizeof(machine_arch));
#else /* !__minix */
int mib[2] = { CTL_HW, HW_MACHINE_ARCH };
size_t len = sizeof (machine_arch);
if (sysctl(mib, sizeof (mib) / sizeof (mib[0]), machine_arch,
&len, NULL, 0) < 0)
err(EXIT_FAILURE, "sysctl");
#endif /* !__minix */
}
if (print_mask & PRINT_SYSNAME) {
space++;
fputs(u.sysname, stdout);
}
if (print_mask & PRINT_NODENAME) {
if (space++) putchar(' ');
fputs(u.nodename, stdout);
}
if (print_mask & PRINT_RELEASE) {
if (space++) putchar(' ');
fputs(u.release, stdout);
}
if (print_mask & PRINT_VERSION) {
if (space++) putchar(' ');
fputs(u.version, stdout);
}
if (print_mask & PRINT_MACHINE) {
if (space++) putchar(' ');
fputs(u.machine, stdout);
}
if (print_mask & PRINT_MACHINE_ARCH) {
if (space++) putchar(' ');
fputs(machine_arch, stdout);
}
putchar('\n');
exit(EXIT_SUCCESS);
/* NOTREACHED */
}
static void
usage(void)
{
fprintf(stderr, "usage: uname [-amnprsv]\n");
exit(EXIT_FAILURE);
}