uname.c revision 89346
11590Srgrimes/*- 21590Srgrimes * Copyright (c) 1993 31590Srgrimes * The Regents of the University of California. All rights reserved. 41590Srgrimes * 51590Srgrimes * Redistribution and use in source and binary forms, with or without 61590Srgrimes * modification, are permitted provided that the following conditions 71590Srgrimes * are met: 81590Srgrimes * 1. Redistributions of source code must retain the above copyright 91590Srgrimes * notice, this list of conditions and the following disclaimer. 101590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer in the 121590Srgrimes * documentation and/or other materials provided with the distribution. 131590Srgrimes * 3. All advertising materials mentioning features or use of this software 141590Srgrimes * must display the following acknowledgement: 151590Srgrimes * This product includes software developed by the University of 161590Srgrimes * California, Berkeley and its contributors. 171590Srgrimes * 4. Neither the name of the University nor the names of its contributors 181590Srgrimes * may be used to endorse or promote products derived from this software 191590Srgrimes * without specific prior written permission. 201590Srgrimes * 211590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311590Srgrimes * SUCH DAMAGE. 321590Srgrimes */ 331590Srgrimes 3487696Smarkm#include <sys/cdefs.h> 3587696Smarkm 3687696Smarkm__FBSDID("$FreeBSD: head/usr.bin/uname/uname.c 89346 2002-01-14 12:49:46Z nyan $"); 3787696Smarkm 381590Srgrimes#ifndef lint 3987696Smarkmstatic const char copyright[] = 401590Srgrimes"@(#) Copyright (c) 1993\n\ 411590Srgrimes The Regents of the University of California. All rights reserved.\n"; 4287696Smarkm#endif 431590Srgrimes 441590Srgrimes#ifndef lint 4587696Smarkmstatic const char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95"; 4687696Smarkm#endif 471590Srgrimes 481590Srgrimes#include <sys/param.h> 491590Srgrimes#include <sys/sysctl.h> 501590Srgrimes 511590Srgrimes#include <err.h> 521590Srgrimes#include <stdio.h> 531590Srgrimes#include <stdlib.h> 5423690Speter#include <unistd.h> 551590Srgrimes 561590Srgrimesvoid usage __P((void)); 571590Srgrimes 581590Srgrimesint 591590Srgrimesmain(argc, argv) 601590Srgrimes int argc; 611590Srgrimes char *argv[]; 621590Srgrimes{ 631590Srgrimes#define MFLAG 0x01 641590Srgrimes#define NFLAG 0x02 6589346Snyan#define PFLAG 0x04 6689346Snyan#define RFLAG 0x08 6789346Snyan#define SFLAG 0x10 6889346Snyan#define VFLAG 0x20 691590Srgrimes u_int flags; 701590Srgrimes int ch, mib[2]; 711590Srgrimes size_t len, tlen; 7287696Smarkm char *p, buf[1024]; 7387696Smarkm const char *prefix; 741590Srgrimes 751590Srgrimes flags = 0; 7633792Ssteve while ((ch = getopt(argc, argv, "amnprsv")) != -1) 771590Srgrimes switch(ch) { 781590Srgrimes case 'a': 791590Srgrimes flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG); 801590Srgrimes break; 811590Srgrimes case 'm': 821590Srgrimes flags |= MFLAG; 831590Srgrimes break; 841590Srgrimes case 'n': 851590Srgrimes flags |= NFLAG; 861590Srgrimes break; 8789346Snyan case 'p': 8889346Snyan flags |= PFLAG; 8989346Snyan break; 901590Srgrimes case 'r': 911590Srgrimes flags |= RFLAG; 921590Srgrimes break; 931590Srgrimes case 's': 941590Srgrimes flags |= SFLAG; 951590Srgrimes break; 961590Srgrimes case 'v': 971590Srgrimes flags |= VFLAG; 981590Srgrimes break; 991590Srgrimes case '?': 1001590Srgrimes default: 1011590Srgrimes usage(); 1021590Srgrimes } 1031590Srgrimes 1041590Srgrimes argc -= optind; 1051590Srgrimes argv += optind; 1061590Srgrimes 1071590Srgrimes if (argc) 1081590Srgrimes usage(); 1091590Srgrimes 1101590Srgrimes if (!flags) 1111590Srgrimes flags |= SFLAG; 1121590Srgrimes 1131590Srgrimes prefix = ""; 1141590Srgrimes 1151590Srgrimes if (flags & SFLAG) { 1161590Srgrimes mib[0] = CTL_KERN; 1171590Srgrimes mib[1] = KERN_OSTYPE; 1181590Srgrimes len = sizeof(buf); 1191590Srgrimes if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 1201590Srgrimes err(1, "sysctl"); 12137453Sbde (void)printf("%s%.*s", prefix, (int)len, buf); 1221590Srgrimes prefix = " "; 1231590Srgrimes } 1241590Srgrimes if (flags & NFLAG) { 1251590Srgrimes mib[0] = CTL_KERN; 1261590Srgrimes mib[1] = KERN_HOSTNAME; 1271590Srgrimes len = sizeof(buf); 1281590Srgrimes if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 1291590Srgrimes err(1, "sysctl"); 13037453Sbde (void)printf("%s%.*s", prefix, (int)len, buf); 1311590Srgrimes prefix = " "; 1321590Srgrimes } 1331590Srgrimes if (flags & RFLAG) { 1341590Srgrimes mib[0] = CTL_KERN; 1351590Srgrimes mib[1] = KERN_OSRELEASE; 1361590Srgrimes len = sizeof(buf); 1371590Srgrimes if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 1381590Srgrimes err(1, "sysctl"); 13937453Sbde (void)printf("%s%.*s", prefix, (int)len, buf); 1401590Srgrimes prefix = " "; 1411590Srgrimes } 1421590Srgrimes if (flags & VFLAG) { 1431590Srgrimes mib[0] = CTL_KERN; 1441590Srgrimes mib[1] = KERN_VERSION; 1451590Srgrimes len = sizeof(buf); 1461590Srgrimes if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 1471590Srgrimes err(1, "sysctl"); 1481590Srgrimes for (p = buf, tlen = len; tlen--; ++p) 1491590Srgrimes if (*p == '\n' || *p == '\t') 1501590Srgrimes *p = ' '; 15137453Sbde (void)printf("%s%.*s", prefix, (int)len, buf); 1521590Srgrimes prefix = " "; 1531590Srgrimes } 1541590Srgrimes if (flags & MFLAG) { 1551590Srgrimes mib[0] = CTL_HW; 1561590Srgrimes mib[1] = HW_MACHINE; 1571590Srgrimes len = sizeof(buf); 1581590Srgrimes if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 1591590Srgrimes err(1, "sysctl"); 16037453Sbde (void)printf("%s%.*s", prefix, (int)len, buf); 1611590Srgrimes prefix = " "; 1621590Srgrimes } 16389346Snyan if (flags & PFLAG) { 16489346Snyan mib[0] = CTL_HW; 16589346Snyan mib[1] = HW_MACHINE_ARCH; 16689346Snyan len = sizeof(buf); 16789346Snyan if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 16889346Snyan err(1, "sysctl"); 16989346Snyan (void)printf("%s%.*s", prefix, (int)len, buf); 17089346Snyan prefix = " "; 17189346Snyan } 1721590Srgrimes (void)printf("\n"); 1731590Srgrimes exit (0); 1741590Srgrimes} 1751590Srgrimes 1761590Srgrimesvoid 1771590Srgrimesusage() 1781590Srgrimes{ 17989346Snyan (void)fprintf(stderr, "usage: uname [-amnprsv]\n"); 1801590Srgrimes exit(1); 1811590Srgrimes} 182