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. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * @(#) Copyright (c) 1993 The Regents of the University of California. All rights reserved.
31 * @(#)uname.c 8.2 (Berkeley) 5/4/95
32 * $FreeBSD: src/usr.bin/uname/uname.c,v 1.4.6.2 2002/10/17 07:47:29 jmallett Exp $
35 #include <sys/param.h>
36 #include <sys/sysctl.h>
37 #include <sys/varsym.h>
55 typedef void (*get_t
)(void);
56 get_t get_ident
, get_machine
, get_hostname
, get_arch
;
57 get_t get_release
, get_sysname
, get_version
, get_pkgabi
;
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 native_pkgabi(void);
67 void print_uname(void);
71 static char *ident
, *machine
, *hostname
, *arch
;
72 static char *release
, *sysname
, *version
, *pkgabi
;
77 main(int argc
, char *argv
[])
83 while ((ch
= getopt(argc
, argv
, "aimnprsvP")) != -1) {
86 flags
|= (MFLAG
| NFLAG
| RFLAG
| SFLAG
| VFLAG
);
110 if (flags
& GFLAG
) /* don't adjust odd numbers */
136 * UNAME_x env variables have the highest priority
137 * UNAME_x varsyms have the next highest priority
138 * values retrieved from sysctls have the lowest priority
142 CHECK_ENV(const char *envname
, get_t
*getp
, get_t nativep
, char **varp
)
144 char buf
[MAXVARSYM_DATA
];
146 if ((*varp
= getenv(envname
)) == NULL
) {
147 if (varsym_get(VARSYM_ALL_MASK
, envname
,
148 buf
, sizeof(buf
)) < 0) {
160 CHECK_ENV("UNAME_s", &get_sysname
, native_sysname
, &sysname
);
161 CHECK_ENV("UNAME_n", &get_hostname
, native_hostname
, &hostname
);
162 CHECK_ENV("UNAME_r", &get_release
, native_release
, &release
);
163 CHECK_ENV("UNAME_v", &get_version
, native_version
, &version
);
164 CHECK_ENV("UNAME_m", &get_machine
, native_machine
, &machine
);
165 CHECK_ENV("UNAME_p", &get_arch
, native_arch
, &arch
);
166 CHECK_ENV("UNAME_i", &get_ident
, native_ident
, &ident
);
167 CHECK_ENV("UNAME_G", &get_pkgabi
, native_pkgabi
, &pkgabi
);
170 #define PRINT_FLAG(flags,flag,var) \
171 if ((flags & flag) == flag) { \
176 if (get_##var != NULL) \
184 PRINT_FLAG(flags
, SFLAG
, sysname
);
185 PRINT_FLAG(flags
, NFLAG
, hostname
);
186 PRINT_FLAG(flags
, RFLAG
, release
);
187 PRINT_FLAG(flags
, VFLAG
, version
);
188 PRINT_FLAG(flags
, MFLAG
, machine
);
189 PRINT_FLAG(flags
, PFLAG
, arch
);
190 PRINT_FLAG(flags
, IFLAG
, ident
);
191 PRINT_FLAG(flags
, GFLAG
, pkgabi
);
195 #define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
199 int mib[] = { (mib0), (mib1) }; \
201 static char buf[1024]; \
202 char **varp = &(var); \
205 if (sysctl(mib, sizeof mib / sizeof mib[0], \
206 &buf, &len, NULL, 0) == -1) \
209 #define NATIVE_SYSCTLNAME_GET(var,name) \
214 static char buf[1024]; \
215 char **varp = &(var); \
218 if (sysctlbyname(name, &buf, &len, NULL,\
220 err(1, "sysctlbyname");
227 #define NATIVE_BUFFER (buf)
228 #define NATIVE_LENGTH (len)
230 NATIVE_SYSCTL2_GET(sysname
, CTL_KERN
, KERN_OSTYPE
) {
233 NATIVE_SYSCTL2_GET(hostname
, CTL_KERN
, KERN_HOSTNAME
) {
236 NATIVE_SYSCTL2_GET(release
, CTL_KERN
, KERN_OSRELEASE
) {
239 NATIVE_SYSCTL2_GET(version
, CTL_KERN
, KERN_VERSION
) {
246 if (*p
== '\n' || *p
== '\t')
250 NATIVE_SYSCTL2_GET(machine
, CTL_HW
, HW_MACHINE
) {
253 NATIVE_SYSCTL2_GET(arch
, CTL_HW
, HW_MACHINE_ARCH
) {
256 NATIVE_SYSCTLNAME_GET(ident
, "kern.ident") {
260 native_pkgabi(void) \
268 if (sysctlbyname("kern.osrelease", osrel
, &len
, NULL
, 0) == -1)
269 err(1, "sysctlbyname");
271 if (sysctlbyname("hw.machine", mach
, &len
, NULL
, 0) == -1)
272 err(1, "sysctlbyname");
275 * Current convention is to adjust odd release numbers to even.
277 d
= strtod(osrel
, NULL
);
278 if ((flags
& GFLAG2
) == 0) {
279 if ((int)(d
* 10) & 1)
280 d
= d
+ 0.1; /* force to nearest even release */
284 * pkgng expects the ABI in a different form
286 if (strcmp(mach
, "x86_64") == 0)
287 snprintf(mach
, sizeof(mach
), "x86:64");
288 else if (strcmp(mach
, "i386") == 0)
289 snprintf(mach
, sizeof(mach
), "x86:32");
291 asprintf(&pkgabi
, "dragonfly:%3.1f:%s", d
, mach
);
297 fprintf(stderr
, "usage: uname [-aimnprsv]\n");