1 /*- 2 * Copyright (c) 1993 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 char copyright[] = 10 "@(#) Copyright (c) 1993 The Regents of the University of California.\n\ 11 All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)uname.c 5.4 (Berkeley) 04/28/93"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/sysctl.h> 20 21 #include <err.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 25 void usage __P((void)); 26 27 int 28 main(argc, argv) 29 int argc; 30 char *argv[]; 31 { 32 #define MFLAG 0x01 33 #define NFLAG 0x02 34 #define RFLAG 0x04 35 #define SFLAG 0x08 36 #define VFLAG 0x10 37 u_int flags; 38 int ch, mib[2]; 39 size_t len, tlen; 40 char *p, *prefix, buf[1024]; 41 42 flags = 0; 43 while ((ch = getopt(argc, argv, "amnrsv")) != EOF) 44 switch(ch) { 45 case 'a': 46 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG); 47 break; 48 case 'm': 49 flags |= MFLAG; 50 break; 51 case 'n': 52 flags |= NFLAG; 53 break; 54 case 'r': 55 flags |= RFLAG; 56 break; 57 case 's': 58 flags |= SFLAG; 59 break; 60 case 'v': 61 flags |= VFLAG; 62 break; 63 case '?': 64 default: 65 usage(); 66 } 67 68 argc -= optind; 69 argv += optind; 70 71 if (argc) 72 usage(); 73 74 if (!flags) 75 flags |= SFLAG; 76 77 prefix = ""; 78 79 if (flags & SFLAG) { 80 mib[0] = CTL_KERN; 81 mib[1] = KERN_OSTYPE; 82 len = sizeof(buf); 83 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 84 err(1, "sysctl"); 85 (void)printf("%s%.*s", prefix, len, buf); 86 prefix = " "; 87 } 88 if (flags & NFLAG) { 89 mib[0] = CTL_KERN; 90 mib[1] = KERN_HOSTNAME; 91 len = sizeof(buf); 92 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 93 err(1, "sysctl"); 94 (void)printf("%s%.*s", prefix, len, buf); 95 prefix = " "; 96 } 97 if (flags & RFLAG) { 98 mib[0] = CTL_KERN; 99 mib[1] = KERN_OSRELEASE; 100 len = sizeof(buf); 101 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 102 err(1, "sysctl"); 103 (void)printf("%s%.*s", prefix, len, buf); 104 prefix = " "; 105 } 106 if (flags & VFLAG) { 107 mib[0] = CTL_KERN; 108 mib[1] = KERN_VERSION; 109 len = sizeof(buf); 110 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 111 err(1, "sysctl"); 112 for (p = buf, tlen = len; tlen--; ++p) 113 if (*p == '\n' || *p == '\t') 114 *p = ' '; 115 (void)printf("%s%.*s", prefix, len, buf); 116 prefix = " "; 117 } 118 if (flags & MFLAG) { 119 mib[0] = CTL_HW; 120 mib[1] = HW_MACHINE; 121 len = sizeof(buf); 122 if (sysctl(mib, 2, &buf, &len, NULL, 0) == -1) 123 err(1, "sysctl"); 124 (void)printf("%s%.*s", prefix, len, buf); 125 prefix = " "; 126 } 127 (void)printf("\n"); 128 exit (0); 129 } 130 131 void 132 usage() 133 { 134 (void)fprintf(stderr, "usage: uname [-amnrsv]\n"); 135 exit(1); 136 } 137