/* uname -- print system information Copyright (C) 1989, 1992, 1993, 1996, 1997, 1999-2005, 2007-2008 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 . */ /* Written by David MacKenzie */ #include #include #include #include #include #if HAVE_SYSINFO && HAVE_SYS_SYSTEMINFO_H # include #endif #if HAVE_SYS_SYSCTL_H # if HAVE_SYS_PARAM_H # include /* needed for OpenBSD 3.0 */ # endif # include # 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 # include #endif #include "system.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) fprintf (stderr, _("Try `%s --help' for more information.\n"), program_name); 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 or \"unknown\"\n\ -i, --hardware-platform print the hardware platform or \"unknown\"\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_bug_reporting_address (); } 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) error (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 const *element = unknown; #if HAVE_SYSINFO && defined SI_ARCHITECTURE { static char processor[257]; if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor)) element = processor; } #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 s = sizeof cputype; NXArchInfo const *ai; if (sysctlbyname ("hw.cputype", &cputype, &s, 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 (element, "ppc", 3) == 0) element = "powerpc"; } # endif } #endif if (! (toprint == UINT_MAX && element == unknown)) print_element (element); } if (toprint & PRINT_HARDWARE_PLATFORM) { char const *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; } #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'); exit (EXIT_SUCCESS); }