1 /* $OpenBSD: uname.c,v 1.17 2015/12/24 15:01:24 tb 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 <sys/utsname.h> 36 37 #include <err.h> 38 #include <locale.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <unistd.h> 42 43 static void usage(void); 44 45 #define PRINT_SYSNAME 0x01 46 #define PRINT_NODENAME 0x02 47 #define PRINT_RELEASE 0x04 48 #define PRINT_VERSION 0x08 49 #define PRINT_MACHINE 0x10 50 #define PRINT_ALL 0x1f 51 #define PRINT_MACHINE_ARCH 0x20 52 53 int 54 main(int argc, char *argv[]) 55 { 56 struct utsname u; 57 int c; 58 int space = 0; 59 int print_mask = 0; 60 61 setlocale(LC_ALL, ""); 62 63 if (pledge("stdio", NULL) == -1) 64 err(1, "pledge"); 65 66 while ((c = getopt(argc, argv, "amnrsvp")) != -1 ) { 67 switch (c) { 68 case 'a': 69 print_mask |= PRINT_ALL; 70 break; 71 case 'm': 72 print_mask |= PRINT_MACHINE; 73 break; 74 case 'n': 75 print_mask |= PRINT_NODENAME; 76 break; 77 case 'p': 78 print_mask |= PRINT_MACHINE_ARCH; 79 break; 80 case 'r': 81 print_mask |= PRINT_RELEASE; 82 break; 83 case 's': 84 print_mask |= PRINT_SYSNAME; 85 break; 86 case 'v': 87 print_mask |= PRINT_VERSION; 88 break; 89 default: 90 usage(); 91 /* NOTREACHED */ 92 } 93 } 94 95 if (optind != argc) { 96 usage(); 97 /* NOTREACHED */ 98 } 99 100 if (!print_mask) { 101 print_mask = PRINT_SYSNAME; 102 } 103 104 if (uname(&u)) 105 err(1, NULL); 106 107 if (print_mask & PRINT_SYSNAME) { 108 space++; 109 fputs(u.sysname, stdout); 110 } 111 if (print_mask & PRINT_NODENAME) { 112 if (space++) 113 putchar(' '); 114 115 fputs(u.nodename, stdout); 116 } 117 if (print_mask & PRINT_RELEASE) { 118 if (space++) 119 putchar(' '); 120 121 fputs(u.release, stdout); 122 } 123 if (print_mask & PRINT_VERSION) { 124 if (space++) 125 putchar(' '); 126 127 fputs(u.version, stdout); 128 } 129 if (print_mask & PRINT_MACHINE) { 130 if (space++) 131 putchar(' '); 132 133 fputs(u.machine, stdout); 134 } 135 if (print_mask & PRINT_MACHINE_ARCH) { 136 if (space++) 137 putchar(' '); 138 139 fputs(MACHINE_ARCH, stdout); 140 } 141 putchar('\n'); 142 143 return 0; 144 } 145 146 static void 147 usage(void) 148 { 149 fprintf(stderr, "usage: uname [-amnprsv]\n"); 150 exit(1); 151 } 152