freebsd-dev/usr.bin/uname/uname.c
Steve Price 7db98de957 Add a -p option which is the same as the -m option but provided
for SVR4 compatibility.

PR:		5826
1998-02-24 16:57:49 +00:00

165 lines
4.2 KiB
C

/*-
* Copyright (c) 1993
* The Regents of the University of California. 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95";
#endif /* not lint */
#include <sys/param.h>
#include <sys/sysctl.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
void usage __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
#define MFLAG 0x01
#define NFLAG 0x02
#define RFLAG 0x04
#define SFLAG 0x08
#define VFLAG 0x10
u_int flags;
int ch, mib[2];
size_t len, tlen;
char *p, *prefix, buf[1024];
flags = 0;
while ((ch = getopt(argc, argv, "amnprsv")) != -1)
switch(ch) {
case 'a':
flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
break;
case 'p':
case 'm':
flags |= MFLAG;
break;
case 'n':
flags |= NFLAG;
break;
case 'r':
flags |= RFLAG;
break;
case 's':
flags |= SFLAG;
break;
case 'v':
flags |= VFLAG;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc)
usage();
if (!flags)
flags |= SFLAG;
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, len, buf);
prefix = " ";
}
if (flags & NFLAG) {
mib[0] = CTL_KERN;
mib[1] = KERN_HOSTNAME;
len = sizeof(buf);
if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
err(1, "sysctl");
(void)printf("%s%.*s", prefix, len, buf);
prefix = " ";
}
if (flags & RFLAG) {
mib[0] = CTL_KERN;
mib[1] = KERN_OSRELEASE;
len = sizeof(buf);
if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
err(1, "sysctl");
(void)printf("%s%.*s", prefix, len, buf);
prefix = " ";
}
if (flags & VFLAG) {
mib[0] = CTL_KERN;
mib[1] = KERN_VERSION;
len = sizeof(buf);
if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
err(1, "sysctl");
for (p = buf, tlen = len; tlen--; ++p)
if (*p == '\n' || *p == '\t')
*p = ' ';
(void)printf("%s%.*s", prefix, len, buf);
prefix = " ";
}
if (flags & MFLAG) {
mib[0] = CTL_HW;
mib[1] = HW_MACHINE;
len = sizeof(buf);
if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1)
err(1, "sysctl");
(void)printf("%s%.*s", prefix, len, buf);
prefix = " ";
}
(void)printf("\n");
exit (0);
}
void
usage()
{
(void)fprintf(stderr, "usage: uname [-amnrsv]\n");
exit(1);
}