1 /* $NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Winning Strategies, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Winning Strategies, Inc. 18 * 4. The name of Winning Strategies, Inc. may not be used to endorse or 19 * promote products derived from this software without specific prior 20 * written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #ifndef lint 36 __RCSID("$NetBSD: uname.c,v 1.11 2011/09/06 18:35:13 joerg Exp $"); 37 #endif /* not lint */ 38 39 #include <sys/param.h> 40 #include <limits.h> 41 #include <locale.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <unistd.h> 45 #include <err.h> 46 47 #if defined(__minix) 48 #include <string.h> 49 #else 50 #include <sys/sysctl.h> 51 #endif /* !defined(__minix) */ 52 #include <sys/utsname.h> 53 54 __dead static void usage(void); 55 56 /* Note that PRINT_MACHINE_ARCH is excluded from PRINT_ALL! */ 57 #define PRINT_SYSNAME 0x01 58 #define PRINT_NODENAME 0x02 59 #define PRINT_RELEASE 0x04 60 #define PRINT_VERSION 0x08 61 #define PRINT_MACHINE 0x10 62 #define PRINT_MACHINE_ARCH 0x20 63 #define PRINT_ALL \ 64 (PRINT_SYSNAME|PRINT_NODENAME|PRINT_RELEASE|PRINT_VERSION|PRINT_MACHINE) 65 66 int 67 main(int argc, char **argv) 68 { 69 struct utsname u; 70 char machine_arch[SYS_NMLN]; 71 int c; 72 int space = 0; 73 int print_mask = 0; 74 75 (void)setlocale(LC_ALL, ""); 76 77 while ((c = getopt(argc,argv,"amnprsv")) != -1) { 78 switch (c) { 79 case 'a': 80 print_mask |= PRINT_ALL; 81 break; 82 case 'm': 83 print_mask |= PRINT_MACHINE; 84 break; 85 case 'n': 86 print_mask |= PRINT_NODENAME; 87 break; 88 case 'p': 89 print_mask |= PRINT_MACHINE_ARCH; 90 break; 91 case 'r': 92 print_mask |= PRINT_RELEASE; 93 break; 94 case 's': 95 print_mask |= PRINT_SYSNAME; 96 break; 97 case 'v': 98 print_mask |= PRINT_VERSION; 99 break; 100 default: 101 usage(); 102 /* NOTREACHED */ 103 } 104 } 105 106 if (optind != argc) { 107 usage(); 108 /* NOTREACHED */ 109 } 110 111 if (!print_mask) { 112 print_mask = PRINT_SYSNAME; 113 } 114 115 if (uname(&u) != 0) { 116 err(EXIT_FAILURE, "uname"); 117 /* NOTREACHED */ 118 } 119 if (print_mask & PRINT_MACHINE_ARCH) { 120 #if defined(__minix) 121 strlcpy(machine_arch, u.arch, sizeof(machine_arch)); 122 #else 123 int mib[2] = { CTL_HW, HW_MACHINE_ARCH }; 124 size_t len = sizeof (machine_arch); 125 126 if (sysctl(mib, sizeof (mib) / sizeof (mib[0]), machine_arch, 127 &len, NULL, 0) < 0) 128 err(EXIT_FAILURE, "sysctl"); 129 #endif /* defined(__minix) */ 130 } 131 132 if (print_mask & PRINT_SYSNAME) { 133 space++; 134 fputs(u.sysname, stdout); 135 } 136 if (print_mask & PRINT_NODENAME) { 137 if (space++) putchar(' '); 138 fputs(u.nodename, stdout); 139 } 140 if (print_mask & PRINT_RELEASE) { 141 if (space++) putchar(' '); 142 fputs(u.release, stdout); 143 } 144 if (print_mask & PRINT_VERSION) { 145 if (space++) putchar(' '); 146 fputs(u.version, stdout); 147 } 148 if (print_mask & PRINT_MACHINE) { 149 if (space++) putchar(' '); 150 fputs(u.machine, stdout); 151 } 152 if (print_mask & PRINT_MACHINE_ARCH) { 153 if (space++) putchar(' '); 154 fputs(machine_arch, stdout); 155 } 156 putchar('\n'); 157 158 exit(EXIT_SUCCESS); 159 /* NOTREACHED */ 160 } 161 162 static void 163 usage(void) 164 { 165 fprintf(stderr, "usage: uname [-amnprsv]\n"); 166 exit(EXIT_FAILURE); 167 } 168