2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 2002 Juli Mallett.
6 * The Regents of the University of California. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
42 static const char copyright[] =
43 "@(#) Copyright (c) 1993\n\
44 The Regents of the University of California. All rights reserved.\n";
48 static const char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95";
51 #include <sys/param.h>
52 #include <sys/sysctl.h>
59 #include <osreldate.h>
71 typedef void (*get_t)(void);
72 static get_t get_ident, get_platform, get_hostname, get_arch,
73 get_release, get_sysname, get_kernvers, get_uservers, get_version;
75 static void native_ident(void);
76 static void native_platform(void);
77 static void native_hostname(void);
78 static void native_arch(void);
79 static void native_release(void);
80 static void native_sysname(void);
81 static void native_version(void);
82 static void native_kernvers(void);
83 static void native_uservers(void);
84 static void print_uname(u_int);
85 static void setup_get(void);
86 static void usage(void);
88 static char *ident, *platform, *hostname, *arch, *release, *sysname, *version, *kernvers, *uservers;
92 main(int argc, char *argv[])
100 while ((ch = getopt(argc, argv, "aiKmnoprsUv")) != -1)
103 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
151 #define CHECK_ENV(opt,var) \
153 if ((var = getenv("UNAME_" opt)) == NULL) { \
154 get_##var = native_##var; \
156 get_##var = (get_t)NULL; \
163 CHECK_ENV("s", sysname);
164 CHECK_ENV("n", hostname);
165 CHECK_ENV("r", release);
166 CHECK_ENV("v", version);
167 CHECK_ENV("m", platform);
168 CHECK_ENV("p", arch);
169 CHECK_ENV("i", ident);
170 CHECK_ENV("K", kernvers);
171 CHECK_ENV("U", uservers);
174 #define PRINT_FLAG(flags,flag,var) \
175 if ((flags & flag) == flag) { \
180 if (get_##var != NULL) \
186 print_uname(u_int flags)
188 PRINT_FLAG(flags, SFLAG, sysname);
189 PRINT_FLAG(flags, NFLAG, hostname);
190 PRINT_FLAG(flags, RFLAG, release);
191 PRINT_FLAG(flags, VFLAG, version);
192 PRINT_FLAG(flags, MFLAG, platform);
193 PRINT_FLAG(flags, PFLAG, arch);
194 PRINT_FLAG(flags, IFLAG, ident);
195 PRINT_FLAG(flags, KFLAG, kernvers);
196 PRINT_FLAG(flags, UFLAG, uservers);
200 #define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
204 int mib[] = { (mib0), (mib1) }; \
206 static char buf[1024]; \
207 char **varp = &(var); \
210 if (sysctl(mib, sizeof mib / sizeof mib[0], \
211 &buf, &len, NULL, 0) == -1) \
214 #define NATIVE_SYSCTLNAME_GET(var,name) \
219 static char buf[1024]; \
220 char **varp = &(var); \
223 if (sysctlbyname(name, &buf, &len, NULL,\
225 err(1, "sysctlbyname");
232 #define NATIVE_BUFFER (buf)
233 #define NATIVE_LENGTH (len)
235 NATIVE_SYSCTL2_GET(sysname, CTL_KERN, KERN_OSTYPE) {
238 NATIVE_SYSCTL2_GET(hostname, CTL_KERN, KERN_HOSTNAME) {
241 NATIVE_SYSCTL2_GET(release, CTL_KERN, KERN_OSRELEASE) {
244 NATIVE_SYSCTL2_GET(version, CTL_KERN, KERN_VERSION) {
251 if (*p == '\n' || *p == '\t')
255 NATIVE_SYSCTL2_GET(platform, CTL_HW, HW_MACHINE) {
258 NATIVE_SYSCTL2_GET(arch, CTL_HW, HW_MACHINE_ARCH) {
261 NATIVE_SYSCTLNAME_GET(ident, "kern.ident") {
265 native_uservers(void)
267 static char buf[128];
269 snprintf(buf, sizeof(buf), "%d", __FreeBSD_version);
274 native_kernvers(void)
276 static char buf[128];
278 snprintf(buf, sizeof(buf), "%d", getosreldate());
285 fprintf(stderr, "usage: uname [-aiKmnoprsUv]\n");