1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 static char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/sysctl.h> 46 47 #include <err.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <unistd.h> 51 52 void usage __P((void)); 53 54 int 55 main(argc, argv) 56 int argc; 57 char *argv[]; 58 { 59 #define MFLAG 0x01 60 #define NFLAG 0x02 61 #define RFLAG 0x04 62 #define SFLAG 0x08 63 #define VFLAG 0x10 64 u_int flags; 65 int ch, mib[2]; 66 size_t len, tlen; 67 char *p, *prefix, buf[1024]; 68 69 flags = 0; 70 while ((ch = getopt(argc, argv, "amnprsv")) != -1) 71 switch(ch) { 72 case 'a': 73 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG); 74 break; 75 case 'p': 76 case 'm': 77 flags |= MFLAG; 78 break; 79 case 'n': 80 flags |= NFLAG; 81 break; 82 case 'r': 83 flags |= RFLAG; 84 break; 85 case 's': 86 flags |= SFLAG; 87 break; 88 case 'v': 89 flags |= VFLAG; 90 break; 91 case '?': 92 default: 93 usage(); 94 } 95 96 argc -= optind; 97 argv += optind; 98 99 if (argc) 100 usage(); 101 102 if (!flags) 103 flags |= SFLAG; 104 105 prefix = ""; 106 107 if (flags & SFLAG) { 108 mib[0] = CTL_KERN; 109 mib[1] = KERN_OSTYPE; 110 len = sizeof(buf); 111 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 112 err(1, "sysctl"); 113 (void)printf("%s%.*s", prefix, len, buf); 114 prefix = " "; 115 } 116 if (flags & NFLAG) { 117 mib[0] = CTL_KERN; 118 mib[1] = KERN_HOSTNAME; 119 len = sizeof(buf); 120 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 121 err(1, "sysctl"); 122 (void)printf("%s%.*s", prefix, len, buf); 123 prefix = " "; 124 } 125 if (flags & RFLAG) { 126 mib[0] = CTL_KERN; 127 mib[1] = KERN_OSRELEASE; 128 len = sizeof(buf); 129 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 130 err(1, "sysctl"); 131 (void)printf("%s%.*s", prefix, len, buf); 132 prefix = " "; 133 } 134 if (flags & VFLAG) { 135 mib[0] = CTL_KERN; 136 mib[1] = KERN_VERSION; 137 len = sizeof(buf); 138 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 139 err(1, "sysctl"); 140 for (p = buf, tlen = len; tlen--; ++p) 141 if (*p == '\n' || *p == '\t') 142 *p = ' '; 143 (void)printf("%s%.*s", prefix, len, buf); 144 prefix = " "; 145 } 146 if (flags & MFLAG) { 147 mib[0] = CTL_HW; 148 mib[1] = HW_MACHINE; 149 len = sizeof(buf); 150 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 151 err(1, "sysctl"); 152 (void)printf("%s%.*s", prefix, len, buf); 153 prefix = " "; 154 } 155 (void)printf("\n"); 156 exit (0); 157 } 158 159 void 160 usage() 161 { 162 (void)fprintf(stderr, "usage: uname [-amnrsv]\n"); 163 exit(1); 164 } 165