df57947f08
The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Initially, only tag files that use BSD 4-Clause "Original" license. RelNotes: yes Differential Revision: https://reviews.freebsd.org/D13133
288 lines
6.6 KiB
C
288 lines
6.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 2002 Juli Mallett.
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif
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#ifndef lint
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static const char sccsid[] = "@(#)uname.c 8.2 (Berkeley) 5/4/95";
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#endif
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <osreldate.h>
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#define MFLAG 0x01
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#define NFLAG 0x02
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#define PFLAG 0x04
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#define RFLAG 0x08
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#define SFLAG 0x10
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#define VFLAG 0x20
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#define IFLAG 0x40
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#define UFLAG 0x80
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#define KFLAG 0x100
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typedef void (*get_t)(void);
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static get_t get_ident, get_platform, get_hostname, get_arch,
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get_release, get_sysname, get_kernvers, get_uservers, get_version;
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static void native_ident(void);
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static void native_platform(void);
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static void native_hostname(void);
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static void native_arch(void);
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static void native_release(void);
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static void native_sysname(void);
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static void native_version(void);
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static void native_kernvers(void);
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static void native_uservers(void);
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static void print_uname(u_int);
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static void setup_get(void);
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static void usage(void);
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static char *ident, *platform, *hostname, *arch, *release, *sysname, *version, *kernvers, *uservers;
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static int space;
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int
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main(int argc, char *argv[])
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{
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u_int flags;
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int ch;
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setup_get();
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flags = 0;
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while ((ch = getopt(argc, argv, "aiKmnoprsUv")) != -1)
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switch(ch) {
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case 'a':
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flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
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break;
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case 'i':
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flags |= IFLAG;
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break;
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case 'K':
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flags |= KFLAG;
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break;
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case 'm':
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flags |= MFLAG;
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break;
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case 'n':
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flags |= NFLAG;
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break;
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case 'p':
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flags |= PFLAG;
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break;
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case 'r':
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flags |= RFLAG;
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break;
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case 's':
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case 'o':
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flags |= SFLAG;
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break;
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case 'U':
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flags |= UFLAG;
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break;
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case 'v':
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flags |= VFLAG;
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc)
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usage();
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if (!flags)
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flags |= SFLAG;
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print_uname(flags);
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exit(0);
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}
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#define CHECK_ENV(opt,var) \
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do { \
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if ((var = getenv("UNAME_" opt)) == NULL) { \
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get_##var = native_##var; \
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} else { \
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get_##var = (get_t)NULL; \
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} \
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} while (0)
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static void
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setup_get(void)
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{
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CHECK_ENV("s", sysname);
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CHECK_ENV("n", hostname);
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CHECK_ENV("r", release);
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CHECK_ENV("v", version);
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CHECK_ENV("m", platform);
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CHECK_ENV("p", arch);
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CHECK_ENV("i", ident);
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CHECK_ENV("K", kernvers);
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CHECK_ENV("U", uservers);
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}
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#define PRINT_FLAG(flags,flag,var) \
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if ((flags & flag) == flag) { \
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if (space) \
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printf(" "); \
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else \
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space++; \
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if (get_##var != NULL) \
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(*get_##var)(); \
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printf("%s", var); \
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}
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static void
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print_uname(u_int flags)
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{
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PRINT_FLAG(flags, SFLAG, sysname);
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PRINT_FLAG(flags, NFLAG, hostname);
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PRINT_FLAG(flags, RFLAG, release);
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PRINT_FLAG(flags, VFLAG, version);
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PRINT_FLAG(flags, MFLAG, platform);
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PRINT_FLAG(flags, PFLAG, arch);
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PRINT_FLAG(flags, IFLAG, ident);
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PRINT_FLAG(flags, KFLAG, kernvers);
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PRINT_FLAG(flags, UFLAG, uservers);
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printf("\n");
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}
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#define NATIVE_SYSCTL2_GET(var,mib0,mib1) \
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static void \
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native_##var(void) \
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{ \
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int mib[] = { (mib0), (mib1) }; \
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size_t len; \
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static char buf[1024]; \
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char **varp = &(var); \
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\
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len = sizeof buf; \
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if (sysctl(mib, sizeof mib / sizeof mib[0], \
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&buf, &len, NULL, 0) == -1) \
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err(1, "sysctl");
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#define NATIVE_SYSCTLNAME_GET(var,name) \
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static void \
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native_##var(void) \
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{ \
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size_t len; \
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static char buf[1024]; \
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char **varp = &(var); \
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\
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len = sizeof buf; \
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if (sysctlbyname(name, &buf, &len, NULL,\
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0) == -1) \
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err(1, "sysctlbyname");
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#define NATIVE_SET \
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*varp = buf; \
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return; \
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} struct __hack
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#define NATIVE_BUFFER (buf)
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#define NATIVE_LENGTH (len)
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NATIVE_SYSCTL2_GET(sysname, CTL_KERN, KERN_OSTYPE) {
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} NATIVE_SET;
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NATIVE_SYSCTL2_GET(hostname, CTL_KERN, KERN_HOSTNAME) {
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} NATIVE_SET;
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NATIVE_SYSCTL2_GET(release, CTL_KERN, KERN_OSRELEASE) {
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} NATIVE_SET;
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NATIVE_SYSCTL2_GET(version, CTL_KERN, KERN_VERSION) {
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size_t n;
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char *p;
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p = NATIVE_BUFFER;
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n = NATIVE_LENGTH;
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for (; n--; ++p)
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if (*p == '\n' || *p == '\t')
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*p = ' ';
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} NATIVE_SET;
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NATIVE_SYSCTL2_GET(platform, CTL_HW, HW_MACHINE) {
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} NATIVE_SET;
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NATIVE_SYSCTL2_GET(arch, CTL_HW, HW_MACHINE_ARCH) {
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} NATIVE_SET;
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NATIVE_SYSCTLNAME_GET(ident, "kern.ident") {
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} NATIVE_SET;
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static void
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native_uservers(void)
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{
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static char buf[128];
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snprintf(buf, sizeof(buf), "%d", __FreeBSD_version);
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uservers = buf;
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}
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static void
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native_kernvers(void)
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{
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static char buf[128];
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snprintf(buf, sizeof(buf), "%d", getosreldate());
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kernvers = buf;
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}
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static void
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usage(void)
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{
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fprintf(stderr, "usage: uname [-aiKmnoprsUv]\n");
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exit(1);
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}
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