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 #include <sys/cdefs.h> 35 36 __FBSDID("$FreeBSD$"); 37 38 #ifndef lint 39 static const char copyright[] = 40 "@(#) Copyright (c) 1993\n\ 41 The Regents of the University of California. All rights reserved.\n"; 42 #endif 43 44 #ifndef lint 45 static const char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95"; 46 #endif 47 48 #include <sys/param.h> 49 #include <sys/sysctl.h> 50 51 #include <err.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <unistd.h> 55 56 void usage(void); 57 58 int 59 main(int argc, char *argv[]) 60 { 61 #define MFLAG 0x01 62 #define NFLAG 0x02 63 #define PFLAG 0x04 64 #define RFLAG 0x08 65 #define SFLAG 0x10 66 #define VFLAG 0x20 67 u_int flags; 68 int ch, mib[2]; 69 size_t len, tlen; 70 char *p, buf[1024]; 71 const char *prefix; 72 73 flags = 0; 74 while ((ch = getopt(argc, argv, "amnprsv")) != -1) 75 switch(ch) { 76 case 'a': 77 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG); 78 break; 79 case 'm': 80 flags |= MFLAG; 81 break; 82 case 'n': 83 flags |= NFLAG; 84 break; 85 case 'p': 86 flags |= PFLAG; 87 break; 88 case 'r': 89 flags |= RFLAG; 90 break; 91 case 's': 92 flags |= SFLAG; 93 break; 94 case 'v': 95 flags |= VFLAG; 96 break; 97 case '?': 98 default: 99 usage(); 100 } 101 102 argc -= optind; 103 argv += optind; 104 105 if (argc) 106 usage(); 107 108 if (!flags) 109 flags |= SFLAG; 110 111 prefix = ""; 112 113 if (flags & SFLAG) { 114 mib[0] = CTL_KERN; 115 mib[1] = KERN_OSTYPE; 116 len = sizeof(buf); 117 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 118 err(1, "sysctl"); 119 (void)printf("%s%.*s", prefix, (int)len, buf); 120 prefix = " "; 121 } 122 if (flags & NFLAG) { 123 mib[0] = CTL_KERN; 124 mib[1] = KERN_HOSTNAME; 125 len = sizeof(buf); 126 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 127 err(1, "sysctl"); 128 (void)printf("%s%.*s", prefix, (int)len, buf); 129 prefix = " "; 130 } 131 if (flags & RFLAG) { 132 mib[0] = CTL_KERN; 133 mib[1] = KERN_OSRELEASE; 134 len = sizeof(buf); 135 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 136 err(1, "sysctl"); 137 (void)printf("%s%.*s", prefix, (int)len, buf); 138 prefix = " "; 139 } 140 if (flags & VFLAG) { 141 mib[0] = CTL_KERN; 142 mib[1] = KERN_VERSION; 143 len = sizeof(buf); 144 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 145 err(1, "sysctl"); 146 for (p = buf, tlen = len; tlen--; ++p) 147 if (*p == '\n' || *p == '\t') 148 *p = ' '; 149 (void)printf("%s%.*s", prefix, (int)len, buf); 150 prefix = " "; 151 } 152 if (flags & MFLAG) { 153 mib[0] = CTL_HW; 154 mib[1] = HW_MACHINE; 155 len = sizeof(buf); 156 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 157 err(1, "sysctl"); 158 (void)printf("%s%.*s", prefix, (int)len, buf); 159 prefix = " "; 160 } 161 if (flags & PFLAG) { 162 mib[0] = CTL_HW; 163 mib[1] = HW_MACHINE_ARCH; 164 len = sizeof(buf); 165 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 166 err(1, "sysctl"); 167 (void)printf("%s%.*s", prefix, (int)len, buf); 168 prefix = " "; 169 } 170 (void)printf("\n"); 171 exit (0); 172 } 173 174 void 175 usage(void) 176 { 177 (void)fprintf(stderr, "usage: uname [-amnprsv]\n"); 178 exit(1); 179 } 180