1 /*- 2 * Copyright (c) 1994 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 * @(#)uname.c 8.1 (Berkeley) 1/4/94 34 * $FreeBSD: src/lib/libc/gen/uname.c,v 1.7 1999/08/27 23:59:06 peter Exp $ 35 * $DragonFly: src/lib/libc/gen/uname.c,v 1.2 2003/06/17 04:26:42 dillon Exp $ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/sysctl.h> 40 #include <sys/utsname.h> 41 #include <errno.h> 42 43 int 44 uname(name) 45 struct utsname *name; 46 { 47 int mib[2], rval; 48 size_t len; 49 char *p; 50 int oerrno; 51 52 rval = 0; 53 54 mib[0] = CTL_KERN; 55 mib[1] = KERN_OSTYPE; 56 len = sizeof(name->sysname); 57 oerrno = errno; 58 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) { 59 if(errno == ENOMEM) 60 errno = oerrno; 61 else 62 rval = -1; 63 } 64 name->sysname[sizeof(name->sysname) - 1] = '\0'; 65 66 mib[0] = CTL_KERN; 67 mib[1] = KERN_HOSTNAME; 68 len = sizeof(name->nodename); 69 oerrno = errno; 70 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) { 71 if(errno == ENOMEM) 72 errno = oerrno; 73 else 74 rval = -1; 75 } 76 name->nodename[sizeof(name->nodename) - 1] = '\0'; 77 78 mib[0] = CTL_KERN; 79 mib[1] = KERN_OSRELEASE; 80 len = sizeof(name->release); 81 oerrno = errno; 82 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) { 83 if(errno == ENOMEM) 84 errno = oerrno; 85 else 86 rval = -1; 87 } 88 name->release[sizeof(name->release) - 1] = '\0'; 89 90 /* The version may have newlines in it, turn them into spaces. */ 91 mib[0] = CTL_KERN; 92 mib[1] = KERN_VERSION; 93 len = sizeof(name->version); 94 oerrno = errno; 95 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) { 96 if (errno == ENOMEM) 97 errno = oerrno; 98 else 99 rval = -1; 100 } 101 name->version[sizeof(name->version) - 1] = '\0'; 102 for (p = name->version; len--; ++p) { 103 if (*p == '\n' || *p == '\t') { 104 if (len > 1) 105 *p = ' '; 106 else 107 *p = '\0'; 108 } 109 } 110 111 mib[0] = CTL_HW; 112 mib[1] = HW_MACHINE; 113 len = sizeof(name->machine); 114 oerrno = errno; 115 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) { 116 if (errno == ENOMEM) 117 errno = oerrno; 118 else 119 rval = -1; 120 } 121 name->machine[sizeof(name->machine) - 1] = '\0'; 122 return (rval); 123 } 124