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, "amnrsv")) != -1) 71 switch(ch) { 72 case 'a': 73 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG); 74 break; 75 case 'm': 76 flags |= MFLAG; 77 break; 78 case 'n': 79 flags |= NFLAG; 80 break; 81 case 'r': 82 flags |= RFLAG; 83 break; 84 case 's': 85 flags |= SFLAG; 86 break; 87 case 'v': 88 flags |= VFLAG; 89 break; 90 case '?': 91 default: 92 usage(); 93 } 94 95 argc -= optind; 96 argv += optind; 97 98 if (argc) 99 usage(); 100 101 if (!flags) 102 flags |= SFLAG; 103 104 prefix = ""; 105 106 if (flags & SFLAG) { 107 mib[0] = CTL_KERN; 108 mib[1] = KERN_OSTYPE; 109 len = sizeof(buf); 110 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 111 err(1, "sysctl"); 112 (void)printf("%s%.*s", prefix, len, buf); 113 prefix = " "; 114 } 115 if (flags & NFLAG) { 116 mib[0] = CTL_KERN; 117 mib[1] = KERN_HOSTNAME; 118 len = sizeof(buf); 119 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 120 err(1, "sysctl"); 121 (void)printf("%s%.*s", prefix, len, buf); 122 prefix = " "; 123 } 124 if (flags & RFLAG) { 125 mib[0] = CTL_KERN; 126 mib[1] = KERN_OSRELEASE; 127 len = sizeof(buf); 128 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 129 err(1, "sysctl"); 130 (void)printf("%s%.*s", prefix, len, buf); 131 prefix = " "; 132 } 133 if (flags & VFLAG) { 134 mib[0] = CTL_KERN; 135 mib[1] = KERN_VERSION; 136 len = sizeof(buf); 137 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 138 err(1, "sysctl"); 139 for (p = buf, tlen = len; tlen--; ++p) 140 if (*p == '\n' || *p == '\t') 141 *p = ' '; 142 (void)printf("%s%.*s", prefix, len, buf); 143 prefix = " "; 144 } 145 if (flags & MFLAG) { 146 mib[0] = CTL_HW; 147 mib[1] = HW_MACHINE; 148 len = sizeof(buf); 149 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 150 err(1, "sysctl"); 151 (void)printf("%s%.*s", prefix, len, buf); 152 prefix = " "; 153 } 154 (void)printf("\n"); 155 exit (0); 156 } 157 158 void 159 usage() 160 { 161 (void)fprintf(stderr, "usage: uname [-amnrsv]\n"); 162 exit(1); 163 } 164