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29 * @(#)uname.c 8.1 (Berkeley) 1/4/94
30 * $FreeBSD: src/lib/libc/gen/uname.c,v 1.7 1999/08/27 23:59:06 peter Exp $
33 #include <sys/param.h>
34 #include <sys/sysctl.h>
35 #include <sys/utsname.h>
41 uname(struct utsname *name)
50 if ((p = getenv("UNAME_s"))) {
51 strlcpy(name->sysname, p, sizeof(name->sysname));
55 len = sizeof(name->sysname);
57 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) {
63 name->sysname[sizeof(name->sysname) - 1] = '\0';
67 mib[1] = KERN_HOSTNAME;
68 len = sizeof(name->nodename);
70 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) {
76 name->nodename[sizeof(name->nodename) - 1] = '\0';
78 if ((p = getenv("UNAME_r"))) {
79 strlcpy(name->release, p, sizeof(name->release));
82 mib[1] = KERN_OSRELEASE;
83 len = sizeof(name->release);
85 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) {
91 name->release[sizeof(name->release) - 1] = '\0';
94 if ((p = getenv("UNAME_v"))) {
95 strlcpy(name->version, p, sizeof(name->version));
97 /* The version may contain newlines, turn them into spaces. */
99 mib[1] = KERN_VERSION;
100 len = sizeof(name->version);
102 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
108 name->version[sizeof(name->version) - 1] = '\0';
109 for (p = name->version; len--; ++p) {
110 if (*p == '\n' || *p == '\t') {
119 if ((p = getenv("UNAME_m"))) {
120 strlcpy(name->machine, p, sizeof(name->machine));
126 len = sizeof(name->machine);
127 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) {
128 if (errno == ENOMEM) {
134 name->machine[sizeof(name->machine) - 1] = '\0';