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)
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");