bin/uname/uname.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  26 /*        All Rights Reserved   */
  27
  28 /*
  29  * University Copyright- Copyright (c) 1982, 1986, 1988
  30  * The Regents of the University of California
  31  * All Rights Reserved
  32  *
  33  * University Acknowledgment- Portions of this document are derived from
  34  * software developed by the University of California, Berkeley, and its
  35  * contributors.
  36  */
  37
  38 #include <sys/types.h>
  39 #include <stdio.h>
  40 #include <stdio.h>
  41 #include <string.h>
  42 #include <locale.h>
  43 #include <unistd.h>
  44 #include <stdlib.h>
  45 #include <errno.h>
  46 #include <err.h>
  47 #include <sys/fcntl.h>
  48 #include <sys/stat.h>
  49 #include <sys/utsname.h>
  50 #include <sys/systeminfo.h>
  51
  52 static void usage(void);
  53
  54 /* ARGSUSED */
  55 int
  56 main(int argc, char *argv[], char *envp[])
  57 {
  58         char *nodename;
  59         char *optstring = "asnrpvmiX";
  60         int sflg = 0, nflg = 0, rflg = 0, vflg = 0, mflg = 0;
  61         int pflg = 0, iflg = 0;
  62         int errflg = 0, optlet;
  63         int Xflg = 0;
  64         struct utsname  unstr, *un;
  65         char fmt_string[] = " %.*s";
  66         char *fs = &fmt_string[1];
  67         char procbuf[SYS_NMLN];
  68
  69         (void) umask(~(S_IRWXU|S_IRGRP|S_IROTH) & S_IAMB);
  70         un = &unstr;
  71         (void) uname(un);
  72
  73         (void) setlocale(LC_ALL, "");
  74
  75         while ((optlet = getopt(argc, argv, optstring)) != EOF)
  76                 switch (optlet) {
  77                 case 'a':
  78                         sflg++; nflg++; rflg++; vflg++; mflg++;
  79                         pflg++;
  80                         iflg++;
  81                         break;
  82                 case 's':
  83                         sflg++;
  84                         break;
  85                 case 'n':
  86                         nflg++;
  87                         break;
  88                 case 'r':
  89                         rflg++;
  90                         break;
  91                 case 'v':
  92                         vflg++;
  93                         break;
  94                 case 'm':
  95                         mflg++;
  96                         break;
  97                 case 'p':
  98                         pflg++;
  99                         break;
 100                 case 'i':
 101                         iflg++;
 102                         break;
 103                 case 'X':
 104                         Xflg++;
 105                         break;
 106
 107                 case '?':
 108                         errflg++;
 109                 }
 110
 111         if (errflg || (optind != argc))
 112                 usage();
 113
 114         /*
 115          * "uname -s" is the default
 116          */
 117         if (!(sflg || nflg || rflg || vflg || mflg || pflg || iflg || Xflg))
 118                 sflg++;
 119         if (sflg) {
 120                 (void) fprintf(stdout, fs, sizeof (un->sysname),
 121                     un->sysname);
 122                 fs = fmt_string;
 123         }
 124         if (nflg) {
 125                 (void) fprintf(stdout, fs, sizeof (un->nodename), un->nodename);
 126                 fs = fmt_string;
 127         }
 128         if (rflg) {
 129                 (void) fprintf(stdout, fs, sizeof (un->release), un->release);
 130                 fs = fmt_string;
 131         }
 132         if (vflg) {
 133                 (void) fprintf(stdout, fs, sizeof (un->version), un->version);
 134                 fs = fmt_string;
 135         }
 136         if (mflg) {
 137                 (void) fprintf(stdout, fs, sizeof (un->machine), un->machine);
 138                 fs = fmt_string;
 139         }
 140         if (pflg) {
 141                 if (sysinfo(SI_ARCHITECTURE, procbuf, sizeof (procbuf)) == -1) {
 142                         err(1, "sysinfo");
 143                 }
 144                 (void) fprintf(stdout, fs, strlen(procbuf), procbuf);
 145                 fs = fmt_string;
 146         }
 147         if (iflg) {
 148                 if (sysinfo(SI_PLATFORM, procbuf, sizeof (procbuf)) == -1) {
 149                         err(1, "sysinfo");
 150                 }
 151                 (void) fprintf(stdout, fs, strlen(procbuf), procbuf);
 152                 fs = fmt_string;
 153         }
 154         if (sflg || nflg || rflg || vflg || mflg || pflg || iflg)
 155                 (void) putchar('\n');
 156         if (Xflg) {
 157                 int     val;
 158
 159                 (void) fprintf(stdout, "System = %.*s\n", sizeof (un->sysname),
 160                     un->sysname);
 161                 (void) fprintf(stdout, "Node = %.*s\n", sizeof (un->nodename),
 162                     un->nodename);
 163                 (void) fprintf(stdout, "Release = %.*s\n", sizeof (un->release),
 164                     un->release);
 165                 (void) fprintf(stdout, "KernelID = %.*s\n",
 166                     sizeof (un->version), un->version);
 167                 (void) fprintf(stdout, "Machine = %.*s\n", sizeof (un->machine),
 168                     un->machine);
 169
 170                 val = sysconf(_SC_NPROCESSORS_CONF);
 171                 (void) fprintf(stdout, "NumCPU = %d\n", val);
 172         }
 173         return (0);
 174 }
 175
 176 static void
 177 usage(void)
 178 {
 179         (void) fprintf(stderr, "usage:  uname [-snrvmapiX]\n");
 180         exit(1);
 181 }