2 * SPDX-License-Identifier: BSD-3-Clause
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31 * From: @(#)uname.c 8.1 (Berkeley) 1/4/94
34 #include <sys/cdefs.h>
35 #include <sys/param.h>
36 #include <sys/sysctl.h>
37 #include <sys/utsname.h>
43 __xuname(int namesize, void *namebuf)
55 if ((p = getenv("UNAME_s")))
56 strlcpy(q, p, namesize);
61 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
67 q[namesize - 1] = '\0';
71 mib[1] = KERN_HOSTNAME;
74 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
80 q[namesize - 1] = '\0';
83 if ((p = getenv("UNAME_r")))
84 strlcpy(q, p, namesize);
86 mib[1] = KERN_OSRELEASE;
89 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
95 q[namesize - 1] = '\0';
99 if ((p = getenv("UNAME_v")))
100 strlcpy(q, p, namesize);
104 * The version may have newlines in it, turn them into
107 mib[1] = KERN_VERSION;
110 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
116 q[namesize - 1] = '\0';
117 for (p = q; len--; ++p) {
118 if (*p == '\n' || *p == '\t') {
128 if ((p = getenv("UNAME_m")))
129 strlcpy(q, p, namesize);
135 if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
141 q[namesize - 1] = '\0';