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
34 * @(#) Copyright (c) 1993 The Regents of the University of California. All rights reserved.
35 * @(#)uname.c 8.2 (Berkeley) 5/4/95
36 * $FreeBSD: src/usr.bin/uname/uname.c,v 1.4.6.2 2002/10/17 07:47:29 jmallett Exp $
37 * $DragonFly: src/usr.bin/uname/uname.c,v 1.6 2007/01/19 07:23:43 dillon Exp $
40 #include <sys/param.h>
41 #include <sys/sysctl.h>
56 typedef void (*get_t)(void);
57 get_t get_ident, get_machine, get_hostname, get_arch, get_release, get_sysname, get_version;
59 void native_ident(void);
60 void native_machine(void);
61 void native_hostname(void);
62 void native_arch(void);
63 void native_release(void);
64 void native_sysname(void);
65 void native_version(void);
66 void print_uname(u_int);
70 char *ident, *machine, *hostname, *arch, *release, *sysname, *version;
74 main(int argc, char *argv[])
82 while ((ch = getopt(argc, argv, "aimnprsv")) != -1)
85 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
126 #define CHECK_ENV(opt,var) \
128 if ((var = getenv("UNAME_" opt)) == NULL) { \
129 get_##var = native_##var; \
131 get_##var = (get_t)NULL; \
138 CHECK_ENV("s", sysname);
139 CHECK_ENV("n", hostname);
140 CHECK_ENV("r", release);
141 CHECK_ENV("v", version);
142 CHECK_ENV("m", machine);
143 CHECK_ENV("p", arch);
144 CHECK_ENV("i", ident);
147 #define PRINT_FLAG(flags,flag,var) \
148 if ((flags & flag) == flag) { \
153 if (get_##var != NULL) \
159 print_uname(u_int flags)
161 PRINT_FLAG(flags, SFLAG, sysname);
162 PRINT_FLAG(flags, NFLAG, hostname);
163 PRINT_FLAG(flags, RFLAG, release);
164 PRINT_FLAG(flags, VFLAG, version);
165 PRINT_FLAG(flags, MFLAG, machine);
166 PRINT_FLAG(flags, PFLAG, arch);
167 PRINT_FLAG(flags, IFLAG, ident);
171 #define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
175 int mib[] = { (mib0), (mib1) }; \
177 static char buf[1024]; \
178 char **varp = &(var); \
181 if (sysctl(mib, sizeof mib / sizeof mib[0], \
182 &buf, &len, NULL, 0) == -1) \
185 #define NATIVE_SYSCTLNAME_GET(var,name) \
190 static char buf[1024]; \
191 char **varp = &(var); \
194 if (sysctlbyname(name, &buf, &len, NULL,\
196 err(1, "sysctlbyname");
203 #define NATIVE_BUFFER (buf)
204 #define NATIVE_LENGTH (len)
206 NATIVE_SYSCTL2_GET(sysname, CTL_KERN, KERN_OSTYPE) {
209 NATIVE_SYSCTL2_GET(hostname, CTL_KERN, KERN_HOSTNAME) {
212 NATIVE_SYSCTL2_GET(release, CTL_KERN, KERN_OSRELEASE) {
215 NATIVE_SYSCTL2_GET(version, CTL_KERN, KERN_VERSION) {
222 if (*p == '\n' || *p == '\t')
226 NATIVE_SYSCTL2_GET(machine, CTL_HW, HW_MACHINE) {
229 NATIVE_SYSCTL2_GET(arch, CTL_HW, HW_MACHINE_ARCH) {
232 NATIVE_SYSCTLNAME_GET(ident, "kern.ident") {
238 fprintf(stderr, "usage: uname [-aimnprsv]\n");