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 $
39 #include <sys/param.h>
40 #include <sys/sysctl.h>
41 #include <sys/varsym.h>
57 typedef void (*get_t)(void);
58 get_t get_ident, get_machine, get_hostname, get_arch;
59 get_t get_release, get_sysname, get_version;
61 void native_ident(void);
62 void native_machine(void);
63 void native_hostname(void);
64 void native_arch(void);
65 void native_release(void);
66 void native_sysname(void);
67 void native_version(void);
68 void print_uname(u_int);
72 char *ident, *machine, *hostname, *arch;
73 char *release, *sysname, *version;
77 main(int argc, char *argv[])
85 while ((ch = getopt(argc, argv, "aimnprsv")) != -1)
88 flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
132 * UNAME_x env variables have the highest priority
133 * UNAME_x varsyms have the next highest priority
134 * values retrieved from sysctls have the lowest priority
138 CHECK_ENV(const char *envname, get_t *getp, get_t nativep, char **varp)
142 if ((*varp = getenv(envname)) == NULL) {
143 if (varsym_get(VARSYM_ALL_MASK, envname,
144 buf, sizeof(buf)) < 0) {
156 CHECK_ENV("UNAME_s", &get_sysname, native_sysname, &sysname);
157 CHECK_ENV("UNAME_n", &get_hostname, native_hostname, &hostname);
158 CHECK_ENV("UNAME_r", &get_release, native_release, &release);
159 CHECK_ENV("UNAME_v", &get_version, native_version, &version);
160 CHECK_ENV("UNAME_m", &get_machine, native_machine, &machine);
161 CHECK_ENV("UNAME_p", &get_arch, native_arch, &arch);
162 CHECK_ENV("UNAME_i", &get_ident, native_ident, &ident);
165 #define PRINT_FLAG(flags,flag,var) \
166 if ((flags & flag) == flag) { \
171 if (get_##var != NULL) \
177 print_uname(u_int flags)
179 PRINT_FLAG(flags, SFLAG, sysname);
180 PRINT_FLAG(flags, NFLAG, hostname);
181 PRINT_FLAG(flags, RFLAG, release);
182 PRINT_FLAG(flags, VFLAG, version);
183 PRINT_FLAG(flags, MFLAG, machine);
184 PRINT_FLAG(flags, PFLAG, arch);
185 PRINT_FLAG(flags, IFLAG, ident);
189 #define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
193 int mib[] = { (mib0), (mib1) }; \
195 static char buf[1024]; \
196 char **varp = &(var); \
199 if (sysctl(mib, sizeof mib / sizeof mib[0], \
200 &buf, &len, NULL, 0) == -1) \
203 #define NATIVE_SYSCTLNAME_GET(var,name) \
208 static char buf[1024]; \
209 char **varp = &(var); \
212 if (sysctlbyname(name, &buf, &len, NULL,\
214 err(1, "sysctlbyname");
221 #define NATIVE_BUFFER (buf)
222 #define NATIVE_LENGTH (len)
224 NATIVE_SYSCTL2_GET(sysname, CTL_KERN, KERN_OSTYPE) {
227 NATIVE_SYSCTL2_GET(hostname, CTL_KERN, KERN_HOSTNAME) {
230 NATIVE_SYSCTL2_GET(release, CTL_KERN, KERN_OSRELEASE) {
233 NATIVE_SYSCTL2_GET(version, CTL_KERN, KERN_VERSION) {
240 if (*p == '\n' || *p == '\t')
244 NATIVE_SYSCTL2_GET(machine, CTL_HW, HW_MACHINE) {
247 NATIVE_SYSCTL2_GET(arch, CTL_HW, HW_MACHINE_ARCH) {
250 NATIVE_SYSCTLNAME_GET(ident, "kern.ident") {
256 fprintf(stderr, "usage: uname [-aimnprsv]\n");