2 * Copyright (c) 2002 Juli Mallett.
4 * The Regents of the University of California. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
40 static const char copyright[] =
41 "@(#) Copyright (c) 1993\n\
42 The Regents of the University of California. All rights reserved.\n";
46 static const char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95";
49 #include <sys/param.h>
50 #include <sys/sysctl.h>
65 typedef void (*get_t)(void);
66 get_t get_ident, get_platform, get_hostname, get_arch, get_release, get_sysname, get_version;
68 void native_ident(void);
69 void native_platform(void);
70 void native_hostname(void);
71 void native_arch(void);
72 void native_release(void);
73 void native_sysname(void);
74 void native_version(void);
75 void print_uname(u_int);
79 char *ident, *platform, *hostname, *arch, *release, *sysname, *version;
83 main(int argc, char *argv[])
91 while ((ch = getopt(argc, argv, "aimnoprsv")) != -1)
94 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
136 #define CHECK_ENV(opt,var) \
138 if ((var = getenv("UNAME_" opt)) == NULL) { \
139 get_##var = native_##var; \
141 get_##var = (get_t)NULL; \
148 CHECK_ENV("s", sysname);
149 CHECK_ENV("n", hostname);
150 CHECK_ENV("r", release);
151 CHECK_ENV("v", version);
152 CHECK_ENV("m", platform);
153 CHECK_ENV("p", arch);
154 CHECK_ENV("i", ident);
157 #define PRINT_FLAG(flags,flag,var) \
158 if ((flags & flag) == flag) { \
163 if (get_##var != NULL) \
169 print_uname(u_int flags)
171 PRINT_FLAG(flags, SFLAG, sysname);
172 PRINT_FLAG(flags, NFLAG, hostname);
173 PRINT_FLAG(flags, RFLAG, release);
174 PRINT_FLAG(flags, VFLAG, version);
175 PRINT_FLAG(flags, MFLAG, platform);
176 PRINT_FLAG(flags, PFLAG, arch);
177 PRINT_FLAG(flags, IFLAG, ident);
181 #define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
185 int mib[] = { (mib0), (mib1) }; \
187 static char buf[1024]; \
188 char **varp = &(var); \
191 if (sysctl(mib, sizeof mib / sizeof mib[0], \
192 &buf, &len, NULL, 0) == -1) \
195 #define NATIVE_SYSCTLNAME_GET(var,name) \
200 static char buf[1024]; \
201 char **varp = &(var); \
204 if (sysctlbyname(name, &buf, &len, NULL,\
206 err(1, "sysctlbyname");
213 #define NATIVE_BUFFER (buf)
214 #define NATIVE_LENGTH (len)
216 NATIVE_SYSCTL2_GET(sysname, CTL_KERN, KERN_OSTYPE) {
219 NATIVE_SYSCTL2_GET(hostname, CTL_KERN, KERN_HOSTNAME) {
222 NATIVE_SYSCTL2_GET(release, CTL_KERN, KERN_OSRELEASE) {
225 NATIVE_SYSCTL2_GET(version, CTL_KERN, KERN_VERSION) {
232 if (*p == '\n' || *p == '\t')
236 NATIVE_SYSCTL2_GET(platform, CTL_HW, HW_MACHINE) {
239 NATIVE_SYSCTL2_GET(arch, CTL_HW, HW_MACHINE_ARCH) {
242 NATIVE_SYSCTLNAME_GET(ident, "kern.ident") {
248 fprintf(stderr, "usage: uname [-aimnoprsv]\n");