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>
72 typedef void (*get_t)(void);
73 static get_t get_buildid, get_ident, get_platform, get_hostname, get_arch,
74 get_release, get_sysname, get_kernvers, get_uservers, get_version;
76 static void native_ident(void);
77 static void native_platform(void);
78 static void native_hostname(void);
79 static void native_arch(void);
80 static void native_release(void);
81 static void native_sysname(void);
82 static void native_version(void);
83 static void native_kernvers(void);
84 static void native_uservers(void);
85 static void native_buildid(void);
86 static void print_uname(u_int);
87 static void setup_get(void);
88 static void usage(void);
90 static char *buildid, *ident, *platform, *hostname, *arch, *release, *sysname,
91 *version, *kernvers, *uservers;
95 main(int argc, char *argv[])
103 while ((ch = getopt(argc, argv, "abiKmnoprsUv")) != -1)
106 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
157 #define CHECK_ENV(opt,var) \
159 if ((var = getenv("UNAME_" opt)) == NULL) { \
160 get_##var = native_##var; \
162 get_##var = (get_t)NULL; \
169 CHECK_ENV("s", sysname);
170 CHECK_ENV("n", hostname);
171 CHECK_ENV("r", release);
172 CHECK_ENV("v", version);
173 CHECK_ENV("m", platform);
174 CHECK_ENV("p", arch);
175 CHECK_ENV("i", ident);
176 CHECK_ENV("K", kernvers);
177 CHECK_ENV("U", uservers);
178 CHECK_ENV("b", buildid);
181 #define PRINT_FLAG(flags,flag,var) \
182 if ((flags & flag) == flag) { \
187 if (get_##var != NULL) \
193 print_uname(u_int flags)
195 PRINT_FLAG(flags, SFLAG, sysname);
196 PRINT_FLAG(flags, NFLAG, hostname);
197 PRINT_FLAG(flags, RFLAG, release);
198 PRINT_FLAG(flags, VFLAG, version);
199 PRINT_FLAG(flags, MFLAG, platform);
200 PRINT_FLAG(flags, PFLAG, arch);
201 PRINT_FLAG(flags, IFLAG, ident);
202 PRINT_FLAG(flags, KFLAG, kernvers);
203 PRINT_FLAG(flags, UFLAG, uservers);
204 PRINT_FLAG(flags, BFLAG, buildid);
208 #define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
212 int mib[] = { (mib0), (mib1) }; \
214 static char buf[1024]; \
215 char **varp = &(var); \
218 if (sysctl(mib, sizeof mib / sizeof mib[0], \
219 &buf, &len, NULL, 0) == -1) \
222 #define NATIVE_SYSCTLNAME_GET(var,name) \
227 static char buf[1024]; \
228 char **varp = &(var); \
231 if (sysctlbyname(name, &buf, &len, NULL,\
233 err(1, "sysctlbyname");
240 #define NATIVE_BUFFER (buf)
241 #define NATIVE_LENGTH (len)
243 NATIVE_SYSCTL2_GET(sysname, CTL_KERN, KERN_OSTYPE) {
246 NATIVE_SYSCTL2_GET(hostname, CTL_KERN, KERN_HOSTNAME) {
249 NATIVE_SYSCTL2_GET(release, CTL_KERN, KERN_OSRELEASE) {
252 NATIVE_SYSCTL2_GET(version, CTL_KERN, KERN_VERSION) {
259 if (*p == '\n' || *p == '\t')
263 NATIVE_SYSCTL2_GET(platform, CTL_HW, HW_MACHINE) {
266 NATIVE_SYSCTL2_GET(arch, CTL_HW, HW_MACHINE_ARCH) {
269 NATIVE_SYSCTLNAME_GET(ident, "kern.ident") {
272 NATIVE_SYSCTLNAME_GET(buildid, "kern.build_id") {
276 native_uservers(void)
278 static char buf[128];
280 snprintf(buf, sizeof(buf), "%d", __FreeBSD_version);
285 native_kernvers(void)
287 static char buf[128];
289 snprintf(buf, sizeof(buf), "%d", getosreldate());
296 fprintf(stderr, "usage: uname [-abiKmnoprsUv]\n");