1 /* $OpenBSD: uname.c,v 1.13 2015/01/16 06:40:13 deraadt 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/param.h> /* MACHINE_ARCH */ 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <locale.h> 38 #include <unistd.h> 39 #include <sys/utsname.h> 40 #include <err.h> 41 42 static void usage(void); 43 44 #define PRINT_SYSNAME 0x01 45 #define PRINT_NODENAME 0x02 46 #define PRINT_RELEASE 0x04 47 #define PRINT_VERSION 0x08 48 #define PRINT_MACHINE 0x10 49 #define PRINT_ALL 0x1f 50 #define PRINT_MACHINE_ARCH 0x20 51 52 int 53 main(int argc, char *argv[]) 54 { 55 struct utsname u; 56 int c; 57 int space = 0; 58 int print_mask = 0; 59 60 setlocale(LC_ALL, ""); 61 62 while ((c = getopt(argc, argv, "amnrsvp")) != -1 ) { 63 switch (c) { 64 case 'a': 65 print_mask |= PRINT_ALL; 66 break; 67 case 'm': 68 print_mask |= PRINT_MACHINE; 69 break; 70 case 'n': 71 print_mask |= PRINT_NODENAME; 72 break; 73 case 'r': 74 print_mask |= PRINT_RELEASE; 75 break; 76 case 's': 77 print_mask |= PRINT_SYSNAME; 78 break; 79 case 'v': 80 print_mask |= PRINT_VERSION; 81 break; 82 case 'p': 83 print_mask |= PRINT_MACHINE_ARCH; 84 break; 85 default: 86 usage(); 87 /* NOTREACHED */ 88 } 89 } 90 91 if (optind != argc) { 92 usage(); 93 /* NOTREACHED */ 94 } 95 96 if (!print_mask) { 97 print_mask = PRINT_SYSNAME; 98 } 99 100 if (uname(&u)) { 101 err(1, NULL); 102 /* NOTREACHED */ 103 } 104 105 if (print_mask & PRINT_SYSNAME) { 106 space++; 107 fputs(u.sysname, stdout); 108 } 109 if (print_mask & PRINT_NODENAME) { 110 if (space++) putchar(' '); 111 fputs(u.nodename, stdout); 112 } 113 if (print_mask & PRINT_RELEASE) { 114 if (space++) putchar(' '); 115 fputs(u.release, stdout); 116 } 117 if (print_mask & PRINT_VERSION) { 118 if (space++) putchar(' '); 119 fputs(u.version, stdout); 120 } 121 if (print_mask & PRINT_MACHINE) { 122 if (space++) putchar(' '); 123 fputs(u.machine, stdout); 124 } 125 if (print_mask & PRINT_MACHINE_ARCH) { 126 if (space++) putchar(' '); 127 fputs(MACHINE_ARCH, stdout); 128 } 129 putchar('\n'); 130 131 exit(0); 132 /* NOTREACHED */ 133 } 134 135 static void 136 usage(void) 137 { 138 fprintf(stderr, "usage: uname [-amnprsv]\n"); 139 exit(1); 140 } 141