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 #endif /* LIBC_SCCS and not lint */ 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #include <sys/param.h> 41 #include <sys/sysctl.h> 42 #include <sys/utsname.h> 43 #include <errno.h> 44 #include <stdlib.h> 45 #include <string.h> 46 47 int 48 __xuname(int namesize, void *namebuf) 49 { 50 int mib[2], rval; 51 size_t len; 52 char *p; 53 int oerrno; 54 struct xutsname { 55 char sysname[namesize]; /* Name of this OS. */ 56 char nodename[namesize]; /* Name of this network node. */ 57 char release[namesize]; /* Release level. */ 58 char version[namesize]; /* Version level. */ 59 char machine[namesize]; /* Hardware type. */ 60 } *name; 61 62 name = (struct xutsname *)namebuf; 63 rval = 0; 64 65 mib[0] = CTL_KERN; 66 mib[1] = KERN_OSTYPE; 67 len = sizeof(name->sysname); 68 oerrno = errno; 69 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) { 70 if(errno == ENOMEM) 71 errno = oerrno; 72 else 73 rval = -1; 74 } 75 name->sysname[sizeof(name->sysname) - 1] = '\0'; 76 if ((p = getenv("UNAME_s"))) 77 strlcpy(name->sysname, p, sizeof(name->sysname)); 78 79 mib[0] = CTL_KERN; 80 mib[1] = KERN_HOSTNAME; 81 len = sizeof(name->nodename); 82 oerrno = errno; 83 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) { 84 if(errno == ENOMEM) 85 errno = oerrno; 86 else 87 rval = -1; 88 } 89 name->nodename[sizeof(name->nodename) - 1] = '\0'; 90 91 mib[0] = CTL_KERN; 92 mib[1] = KERN_OSRELEASE; 93 len = sizeof(name->release); 94 oerrno = errno; 95 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) { 96 if(errno == ENOMEM) 97 errno = oerrno; 98 else 99 rval = -1; 100 } 101 name->release[sizeof(name->release) - 1] = '\0'; 102 if ((p = getenv("UNAME_r"))) 103 strlcpy(name->release, p, sizeof(name->release)); 104 105 /* The version may have newlines in it, turn them into spaces. */ 106 mib[0] = CTL_KERN; 107 mib[1] = KERN_VERSION; 108 len = sizeof(name->version); 109 oerrno = errno; 110 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) { 111 if (errno == ENOMEM) 112 errno = oerrno; 113 else 114 rval = -1; 115 } 116 name->version[sizeof(name->version) - 1] = '\0'; 117 for (p = name->version; len--; ++p) { 118 if (*p == '\n' || *p == '\t') { 119 if (len > 1) 120 *p = ' '; 121 else 122 *p = '\0'; 123 } 124 } 125 if ((p = getenv("UNAME_v"))) 126 strlcpy(name->version, p, sizeof(name->version)); 127 128 mib[0] = CTL_HW; 129 mib[1] = HW_MACHINE; 130 len = sizeof(name->machine); 131 oerrno = errno; 132 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) { 133 if (errno == ENOMEM) 134 errno = oerrno; 135 else 136 rval = -1; 137 } 138 name->machine[sizeof(name->machine) - 1] = '\0'; 139 if ((p = getenv("UNAME_m"))) 140 strlcpy(name->machine, p, sizeof(name->machine)); 141 return (rval); 142 } 143