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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if defined(LIBC_SCCS) && !defined(lint) 31 /*static char sccsid[] = "From: @(#)uname.c 8.1 (Berkeley) 1/4/94";*/ 32 #endif /* LIBC_SCCS and not lint */ 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/param.h> 37 #include <sys/sysctl.h> 38 #include <sys/utsname.h> 39 #include <errno.h> 40 #include <stdlib.h> 41 #include <string.h> 42 43 int 44 __xuname(int namesize, void *namebuf) 45 { 46 int mib[2], rval; 47 size_t len; 48 char *p; 49 int oerrno; 50 struct xutsname { 51 char sysname[namesize]; /* Name of this OS. */ 52 char nodename[namesize]; /* Name of this network node. */ 53 char release[namesize]; /* Release level. */ 54 char version[namesize]; /* Version level. */ 55 char machine[namesize]; /* Hardware type. */ 56 } *name; 57 58 name = (struct xutsname *)namebuf; 59 rval = 0; 60 61 mib[0] = CTL_KERN; 62 mib[1] = KERN_OSTYPE; 63 len = sizeof(name->sysname); 64 oerrno = errno; 65 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) { 66 if(errno == ENOMEM) 67 errno = oerrno; 68 else 69 rval = -1; 70 } 71 name->sysname[sizeof(name->sysname) - 1] = '\0'; 72 if ((p = getenv("UNAME_s"))) 73 strlcpy(name->sysname, p, sizeof(name->sysname)); 74 75 mib[0] = CTL_KERN; 76 mib[1] = KERN_HOSTNAME; 77 len = sizeof(name->nodename); 78 oerrno = errno; 79 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) { 80 if(errno == ENOMEM) 81 errno = oerrno; 82 else 83 rval = -1; 84 } 85 name->nodename[sizeof(name->nodename) - 1] = '\0'; 86 87 mib[0] = CTL_KERN; 88 mib[1] = KERN_OSRELEASE; 89 len = sizeof(name->release); 90 oerrno = errno; 91 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) { 92 if(errno == ENOMEM) 93 errno = oerrno; 94 else 95 rval = -1; 96 } 97 name->release[sizeof(name->release) - 1] = '\0'; 98 if ((p = getenv("UNAME_r"))) 99 strlcpy(name->release, p, sizeof(name->release)); 100 101 /* The version may have newlines in it, turn them into spaces. */ 102 mib[0] = CTL_KERN; 103 mib[1] = KERN_VERSION; 104 len = sizeof(name->version); 105 oerrno = errno; 106 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) { 107 if (errno == ENOMEM) 108 errno = oerrno; 109 else 110 rval = -1; 111 } 112 name->version[sizeof(name->version) - 1] = '\0'; 113 for (p = name->version; len--; ++p) { 114 if (*p == '\n' || *p == '\t') { 115 if (len > 1) 116 *p = ' '; 117 else 118 *p = '\0'; 119 } 120 } 121 if ((p = getenv("UNAME_v"))) 122 strlcpy(name->version, p, sizeof(name->version)); 123 124 mib[0] = CTL_HW; 125 mib[1] = HW_MACHINE; 126 len = sizeof(name->machine); 127 oerrno = errno; 128 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) { 129 if (errno == ENOMEM) 130 errno = oerrno; 131 else 132 rval = -1; 133 } 134 name->machine[sizeof(name->machine) - 1] = '\0'; 135 if ((p = getenv("UNAME_m"))) 136 strlcpy(name->machine, p, sizeof(name->machine)); 137 return (rval); 138 } 139