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 1.3 2005/11/13 00:07:42 swildner 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(struct utsname *name) 45 { 46 int mib[2], rval; 47 size_t len; 48 char *p; 49 int oerrno; 50 51 rval = 0; 52 53 mib[0] = CTL_KERN; 54 mib[1] = KERN_OSTYPE; 55 len = sizeof(name->sysname); 56 oerrno = errno; 57 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) { 58 if(errno == ENOMEM) 59 errno = oerrno; 60 else 61 rval = -1; 62 } 63 name->sysname[sizeof(name->sysname) - 1] = '\0'; 64 65 mib[0] = CTL_KERN; 66 mib[1] = KERN_HOSTNAME; 67 len = sizeof(name->nodename); 68 oerrno = errno; 69 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) { 70 if(errno == ENOMEM) 71 errno = oerrno; 72 else 73 rval = -1; 74 } 75 name->nodename[sizeof(name->nodename) - 1] = '\0'; 76 77 mib[0] = CTL_KERN; 78 mib[1] = KERN_OSRELEASE; 79 len = sizeof(name->release); 80 oerrno = errno; 81 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) { 82 if(errno == ENOMEM) 83 errno = oerrno; 84 else 85 rval = -1; 86 } 87 name->release[sizeof(name->release) - 1] = '\0'; 88 89 /* The version may have newlines in it, turn them into spaces. */ 90 mib[0] = CTL_KERN; 91 mib[1] = KERN_VERSION; 92 len = sizeof(name->version); 93 oerrno = errno; 94 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) { 95 if (errno == ENOMEM) 96 errno = oerrno; 97 else 98 rval = -1; 99 } 100 name->version[sizeof(name->version) - 1] = '\0'; 101 for (p = name->version; len--; ++p) { 102 if (*p == '\n' || *p == '\t') { 103 if (len > 1) 104 *p = ' '; 105 else 106 *p = '\0'; 107 } 108 } 109 110 mib[0] = CTL_HW; 111 mib[1] = HW_MACHINE; 112 len = sizeof(name->machine); 113 oerrno = errno; 114 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) { 115 if (errno == ENOMEM) 116 errno = oerrno; 117 else 118 rval = -1; 119 } 120 name->machine[sizeof(name->machine) - 1] = '\0'; 121 return (rval); 122 } 123