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 1.3 2003/10/24 17:19:16 dillon Exp $
40 #include <sys/param.h>
41 #include <sys/sysctl.h>
56 typedef void (*get_t
)(void);
57 get_t get_ident
, get_platform
, get_hostname
, get_arch
, get_release
, get_sysname
, get_version
;
59 void native_ident(void);
60 void native_platform(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
, *platform
, *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", platform
);
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
, platform
);
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(platform
, 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");