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 8.1 (Berkeley) 6/6/93"; 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 51 void usage __P((void)); 52 53 int 54 main(argc, argv) 55 int argc; 56 char *argv[]; 57 { 58 #define MFLAG 0x01 59 #define NFLAG 0x02 60 #define RFLAG 0x04 61 #define SFLAG 0x08 62 #define VFLAG 0x10 63 u_int flags; 64 int ch, mib[2]; 65 size_t len, tlen; 66 char *p, *prefix, buf[1024]; 67 68 flags = 0; 69 while ((ch = getopt(argc, argv, "amnrsv")) != EOF) 70 switch(ch) { 71 case 'a': 72 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG); 73 break; 74 case 'm': 75 flags |= MFLAG; 76 break; 77 case 'n': 78 flags |= NFLAG; 79 break; 80 case 'r': 81 flags |= RFLAG; 82 break; 83 case 's': 84 flags |= SFLAG; 85 break; 86 case 'v': 87 flags |= VFLAG; 88 break; 89 case '?': 90 default: 91 usage(); 92 } 93 94 argc -= optind; 95 argv += optind; 96 97 if (argc) 98 usage(); 99 100 if (!flags) 101 flags |= SFLAG; 102 103 prefix = ""; 104 105 if (flags & SFLAG) { 106 mib[0] = CTL_KERN; 107 mib[1] = KERN_OSTYPE; 108 len = sizeof(buf); 109 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 110 err(1, "sysctl"); 111 (void)printf("%s%.*s", prefix, len, buf); 112 prefix = " "; 113 } 114 if (flags & NFLAG) { 115 mib[0] = CTL_KERN; 116 mib[1] = KERN_HOSTNAME; 117 len = sizeof(buf); 118 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 119 err(1, "sysctl"); 120 (void)printf("%s%.*s", prefix, len, buf); 121 prefix = " "; 122 } 123 if (flags & RFLAG) { 124 mib[0] = CTL_KERN; 125 mib[1] = KERN_OSRELEASE; 126 len = sizeof(buf); 127 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 128 err(1, "sysctl"); 129 (void)printf("%s%.*s", prefix, len, buf); 130 prefix = " "; 131 } 132 if (flags & VFLAG) { 133 mib[0] = CTL_KERN; 134 mib[1] = KERN_VERSION; 135 len = sizeof(buf); 136 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 137 err(1, "sysctl"); 138 for (p = buf, tlen = len; tlen--; ++p) 139 if (*p == '\n' || *p == '\t') 140 *p = ' '; 141 (void)printf("%s%.*s", prefix, len, buf); 142 prefix = " "; 143 } 144 if (flags & MFLAG) { 145 mib[0] = CTL_HW; 146 mib[1] = HW_MACHINE; 147 len = sizeof(buf); 148 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 149 err(1, "sysctl"); 150 (void)printf("%s%.*s", prefix, len, buf); 151 prefix = " "; 152 } 153 (void)printf("\n"); 154 exit (0); 155 } 156 157 void 158 usage() 159 { 160 (void)fprintf(stderr, "usage: uname [-amnrsv]\n"); 161 exit(1); 162 } 163