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 34 #if defined(LIBC_SCCS) && !defined(lint) 35 /*static char sccsid[] = "From: @(#)uname.c 8.1 (Berkeley) 1/4/94";*/ 36 static const char rcsid[] = 37 "$FreeBSD: src/lib/libc/gen/uname.c,v 1.7 1999/08/27 23:59:06 peter Exp $"; 38 #endif /* LIBC_SCCS and not lint */ 39 40 #include <sys/param.h> 41 #include <sys/sysctl.h> 42 #include <sys/utsname.h> 43 #include <errno.h> 44 45 int 46 uname(name) 47 struct utsname *name; 48 { 49 int mib[2], rval; 50 size_t len; 51 char *p; 52 int oerrno; 53 54 rval = 0; 55 56 mib[0] = CTL_KERN; 57 mib[1] = KERN_OSTYPE; 58 len = sizeof(name->sysname); 59 oerrno = errno; 60 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) { 61 if(errno == ENOMEM) 62 errno = oerrno; 63 else 64 rval = -1; 65 } 66 name->sysname[sizeof(name->sysname) - 1] = '\0'; 67 68 mib[0] = CTL_KERN; 69 mib[1] = KERN_HOSTNAME; 70 len = sizeof(name->nodename); 71 oerrno = errno; 72 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) { 73 if(errno == ENOMEM) 74 errno = oerrno; 75 else 76 rval = -1; 77 } 78 name->nodename[sizeof(name->nodename) - 1] = '\0'; 79 80 mib[0] = CTL_KERN; 81 mib[1] = KERN_OSRELEASE; 82 len = sizeof(name->release); 83 oerrno = errno; 84 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) { 85 if(errno == ENOMEM) 86 errno = oerrno; 87 else 88 rval = -1; 89 } 90 name->release[sizeof(name->release) - 1] = '\0'; 91 92 /* The version may have newlines in it, turn them into spaces. */ 93 mib[0] = CTL_KERN; 94 mib[1] = KERN_VERSION; 95 len = sizeof(name->version); 96 oerrno = errno; 97 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) { 98 if (errno == ENOMEM) 99 errno = oerrno; 100 else 101 rval = -1; 102 } 103 name->version[sizeof(name->version) - 1] = '\0'; 104 for (p = name->version; len--; ++p) { 105 if (*p == '\n' || *p == '\t') { 106 if (len > 1) 107 *p = ' '; 108 else 109 *p = '\0'; 110 } 111 } 112 113 mib[0] = CTL_HW; 114 mib[1] = HW_MACHINE; 115 len = sizeof(name->machine); 116 oerrno = errno; 117 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) { 118 if (errno == ENOMEM) 119 errno = oerrno; 120 else 121 rval = -1; 122 } 123 name->machine[sizeof(name->machine) - 1] = '\0'; 124 return (rval); 125 } 126