/* uname -- print system information
Copyright (C) 1989-2018 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by David MacKenzie <djm@gnu.ai.mit.edu> */
#include <config.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <getopt.h>
#if HAVE_SYSINFO && HAVE_SYS_SYSTEMINFO_H
# include <sys/systeminfo.h>
#endif
#if HAVE_SYS_SYSCTL_H
# if HAVE_SYS_PARAM_H
# include <sys/param.h> /* needed for OpenBSD 3.0 */
# endif
# include <sys/sysctl.h>
# ifdef HW_MODEL
# ifdef HW_MACHINE_ARCH
/* E.g., FreeBSD 4.5, NetBSD 1.5.2 */
# define UNAME_HARDWARE_PLATFORM HW_MODEL
# define UNAME_PROCESSOR HW_MACHINE_ARCH
# else
/* E.g., OpenBSD 3.0 */
# define UNAME_PROCESSOR HW_MODEL
# endif
# endif
#endif
#ifdef __APPLE__
# include <mach/machine.h>
# include <mach-o/arch.h>
#endif
#include "system.h"
#include "die.h"
#include "error.h"
#include "quote.h"
#include "uname.h"
/* The official name of this program (e.g., no 'g' prefix). */
#define PROGRAM_NAME (uname_mode == UNAME_UNAME ? "uname" : "arch")
#define AUTHORS proper_name ("David MacKenzie")
#define ARCH_AUTHORS "David MacKenzie", "Karel Zak"
/* Values that are bitwise or'd into 'toprint'. */
/* Kernel name. */
#define PRINT_KERNEL_NAME 1
/* Node name on a communications network. */
#define PRINT_NODENAME 2
/* Kernel release. */
#define PRINT_KERNEL_RELEASE 4
/* Kernel version. */
#define PRINT_KERNEL_VERSION 8
/* Machine hardware name. */
#define PRINT_MACHINE 16
/* Processor type. */
#define PRINT_PROCESSOR 32
/* Hardware platform. */
#define PRINT_HARDWARE_PLATFORM 64
/* Operating system. */
#define PRINT_OPERATING_SYSTEM 128
static struct option const uname_long_options[] =
{
{"all", no_argument, NULL, 'a'},
{"kernel-name", no_argument, NULL, 's'},
{"sysname", no_argument, NULL, 's'}, /* Obsolescent. */
{"nodename", no_argument, NULL, 'n'},
{"kernel-release", no_argument, NULL, 'r'},
{"release", no_argument, NULL, 'r'}, /* Obsolescent. */
{"kernel-version", no_argument, NULL, 'v'},
{"machine", no_argument, NULL, 'm'},
{"processor", no_argument, NULL, 'p'},
{"hardware-platform", no_argument, NULL, 'i'},
{"operating-system", no_argument, NULL, 'o'},
{GETOPT_HELP_OPTION_DECL},
{GETOPT_VERSION_OPTION_DECL},
{NULL, 0, NULL, 0}
};
static struct option const arch_long_options[] =
{
{GETOPT_HELP_OPTION_DECL},
{GETOPT_VERSION_OPTION_DECL},
{NULL, 0, NULL, 0}
};
void
usage (int status)
{
if (status != EXIT_SUCCESS)
emit_try_help ();
else
{
printf (_("Usage: %s [OPTION]...\n"), program_name);
if (uname_mode == UNAME_UNAME)
{
fputs (_("\
Print certain system information. With no OPTION, same as -s.\n\
\n\
-a, --all print all information, in the following order,\n\
except omit -p and -i if unknown:\n\
-s, --kernel-name print the kernel name\n\
-n, --nodename print the network node hostname\n\
-r, --kernel-release print the kernel release\n\
"), stdout);
fputs (_("\
-v, --kernel-version print the kernel version\n\
-m, --machine print the machine hardware name\n\
-p, --processor print the processor type (non-portable)\n\
-i, --hardware-platform print the hardware platform (non-portable)\n\
-o, --operating-system print the operating system\n\
"), stdout);
}
else
{
fputs (_("\
Print machine architecture.\n\
\n\
"), stdout);
}
fputs (HELP_OPTION_DESCRIPTION, stdout);
fputs (VERSION_OPTION_DESCRIPTION, stdout);
emit_ancillary_info (PROGRAM_NAME);
}
exit (status);
}
/* Print ELEMENT, preceded by a space if something has already been
printed. */
static void
print_element (char const *element)
{
static bool printed;
if (printed)
putchar (' ');
printed = true;
fputs (element, stdout);
}
/* Set all the option flags according to the switches specified.
Return the mask indicating which elements to print. */
static int
decode_switches (int argc, char **argv)
{
int c;
unsigned int toprint = 0;
if (uname_mode == UNAME_ARCH)
{
while ((c = getopt_long (argc, argv, "",
arch_long_options, NULL)) != -1)
{
switch (c)
{
case_GETOPT_HELP_CHAR;
case_GETOPT_VERSION_CHAR (PROGRAM_NAME, ARCH_AUTHORS);
default:
usage (EXIT_FAILURE);
}
}
toprint = PRINT_MACHINE;
}
else
{
while ((c = getopt_long (argc, argv, "asnrvmpio",
uname_long_options, NULL)) != -1)
{
switch (c)
{
case 'a':
toprint = UINT_MAX;
break;
case 's':
toprint |= PRINT_KERNEL_NAME;
break;
case 'n':
toprint |= PRINT_NODENAME;
break;
case 'r':
toprint |= PRINT_KERNEL_RELEASE;
break;
case 'v':
toprint |= PRINT_KERNEL_VERSION;
break;
case 'm':
toprint |= PRINT_MACHINE;
break;
case 'p':
toprint |= PRINT_PROCESSOR;
break;
case 'i':
toprint |= PRINT_HARDWARE_PLATFORM;
break;
case 'o':
toprint |= PRINT_OPERATING_SYSTEM;
break;
case_GETOPT_HELP_CHAR;
case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
default:
usage (EXIT_FAILURE);
}
}
}
if (argc != optind)
{
error (0, 0, _("extra operand %s"), quote (argv[optind]));
usage (EXIT_FAILURE);
}
return toprint;
}
int
main (int argc, char **argv)
{
static char const unknown[] = "unknown";
/* Mask indicating which elements to print. */
unsigned int toprint = 0;
initialize_main (&argc, &argv);
set_program_name (argv[0]);
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
atexit (close_stdout);
toprint = decode_switches (argc, argv);
if (toprint == 0)
toprint = PRINT_KERNEL_NAME;
if (toprint
& (PRINT_KERNEL_NAME | PRINT_NODENAME | PRINT_KERNEL_RELEASE
| PRINT_KERNEL_VERSION | PRINT_MACHINE))
{
struct utsname name;
if (uname (&name) == -1)
die (EXIT_FAILURE, errno, _("cannot get system name"));
if (toprint & PRINT_KERNEL_NAME)
print_element (name.sysname);
if (toprint & PRINT_NODENAME)
print_element (name.nodename);
if (toprint & PRINT_KERNEL_RELEASE)
print_element (name.release);
if (toprint & PRINT_KERNEL_VERSION)
print_element (name.version);
if (toprint & PRINT_MACHINE)
print_element (name.machine);
}
if (toprint & PRINT_PROCESSOR)
{
char *element = unknown;
#if HAVE_SYSINFO && defined SI_ARCHITECTURE
{
static char processor[257];
if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor))
element = processor;
}
#else
{
static struct utsname u;
uname(&u);
element = u.machine;
}
#endif
#ifdef UNAME_PROCESSOR
if (element == unknown)
{
static char processor[257];
size_t s = sizeof processor;
static int mib[] = { CTL_HW, UNAME_PROCESSOR };
if (sysctl (mib, 2, processor, &s, 0, 0) >= 0)
element = processor;
# ifdef __APPLE__
/* This kludge works around a bug in Mac OS X. */
if (element == unknown)
{
cpu_type_t cputype;
size_t cs = sizeof cputype;
NXArchInfo const *ai;
if (sysctlbyname ("hw.cputype", &cputype, &cs, NULL, 0) == 0
&& (ai = NXGetArchInfoFromCpuType (cputype,
CPU_SUBTYPE_MULTIPLE))
!= NULL)
element = ai->name;
/* Hack "safely" around the ppc vs. powerpc return value. */
if (cputype == CPU_TYPE_POWERPC
&& STRNCMP_LIT (element, "ppc") == 0)
element = "powerpc";
}
# endif
}
#endif
if (! (toprint == UINT_MAX && element == unknown))
print_element (element);
}
if (toprint & PRINT_HARDWARE_PLATFORM)
{
char *element = unknown;
#if HAVE_SYSINFO && defined SI_PLATFORM
{
static char hardware_platform[257];
if (0 <= sysinfo (SI_PLATFORM,
hardware_platform, sizeof hardware_platform))
element = hardware_platform;
}
#else
{
static struct utsname u;
uname(&u);
element = u.machine;
if(strlen(element)==4 && element[0]=='i' && element[2]=='8' && element[3]=='6')
element[1]='3';
}
#endif
#ifdef UNAME_HARDWARE_PLATFORM
if (element == unknown)
{
static char hardware_platform[257];
size_t s = sizeof hardware_platform;
static int mib[] = { CTL_HW, UNAME_HARDWARE_PLATFORM };
if (sysctl (mib, 2, hardware_platform, &s, 0, 0) >= 0)
element = hardware_platform;
}
#endif
if (! (toprint == UINT_MAX && element == unknown))
print_element (element);
}
if (toprint & PRINT_OPERATING_SYSTEM)
print_element (HOST_OPERATING_SYSTEM);
putchar ('\n');
return EXIT_SUCCESS;
}