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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>
36 #include <sys/varsym.h>
44 uname(struct utsname *name)
49 char buf[MAXVARSYM_DATA];
54 if ((p = getenv("UNAME_s"))) {
55 strlcpy(name->sysname, p, sizeof(name->sysname));
56 } else if (varsym_get(VARSYM_ALL_MASK, "UNAME_s", buf, sizeof(buf)) == 0) {
57 strlcpy(name->sysname, buf, sizeof(name->sysname));
61 len = sizeof(name->sysname);
63 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) {
69 name->sysname[sizeof(name->sysname) - 1] = '\0';
73 mib[1] = KERN_HOSTNAME;
74 len = sizeof(name->nodename);
76 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) {
82 name->nodename[sizeof(name->nodename) - 1] = '\0';
84 if ((p = getenv("UNAME_r"))) {
85 strlcpy(name->release, p, sizeof(name->release));
86 } else if (varsym_get(VARSYM_ALL_MASK, "UNAME_r", buf, sizeof(buf)) == 0) {
87 strlcpy(name->release, buf, sizeof(name->sysname));
90 mib[1] = KERN_OSRELEASE;
91 len = sizeof(name->release);
93 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) {
99 name->release[sizeof(name->release) - 1] = '\0';
102 if ((p = getenv("UNAME_v"))) {
103 strlcpy(name->version, p, sizeof(name->version));
104 } else if (varsym_get(VARSYM_ALL_MASK, "UNAME_v", buf, sizeof(buf)) == 0) {
105 strlcpy(name->version, buf, sizeof(name->sysname));
107 /* The version may contain newlines, turn them into spaces. */
109 mib[1] = KERN_VERSION;
110 len = sizeof(name->version);
112 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
118 name->version[sizeof(name->version) - 1] = '\0';
119 for (p = name->version; len--; ++p) {
120 if (*p == '\n' || *p == '\t') {
129 if ((p = getenv("UNAME_m"))) {
130 strlcpy(name->machine, p, sizeof(name->machine));
131 } else if (varsym_get(VARSYM_ALL_MASK, "UNAME_m", buf, sizeof(buf)) == 0) {
132 strlcpy(name->machine, buf, sizeof(name->sysname));
137 len = sizeof(name->machine);
138 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) {
139 if (errno == ENOMEM) {
145 name->machine[sizeof(name->machine) - 1] = '\0';