2 * SPDX-License-Identifier: BSD-3-Clause
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #if defined(LIBC_SCCS) && !defined(lint)
33 /*static char sccsid[] = "From: @(#)uname.c 8.1 (Berkeley) 1/4/94";*/
34 #endif /* LIBC_SCCS and not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
39 #include <sys/sysctl.h>
40 #include <sys/utsname.h>
46 __xuname(int namesize, void *namebuf)
58 if ((p = getenv("UNAME_s")))
59 strlcpy(q, p, namesize);
64 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
70 q[namesize - 1] = '\0';
74 mib[1] = KERN_HOSTNAME;
77 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
83 q[namesize - 1] = '\0';
86 if ((p = getenv("UNAME_r")))
87 strlcpy(q, p, namesize);
89 mib[1] = KERN_OSRELEASE;
92 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
98 q[namesize - 1] = '\0';
102 if ((p = getenv("UNAME_v")))
103 strlcpy(q, p, namesize);
107 * The version may have newlines in it, turn them into
110 mib[1] = KERN_VERSION;
113 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
119 q[namesize - 1] = '\0';
120 for (p = q; len--; ++p) {
121 if (*p == '\n' || *p == '\t') {
131 if ((p = getenv("UNAME_m")))
132 strlcpy(q, p, namesize);
138 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
144 q[namesize - 1] = '\0';