/* vi: set sw=4 ts=4: */ /* uname -- print system information * Copyright (C) 1989-1999 Free Software Foundation, Inc. * * Licensed under GPLv2 or later, see file LICENSE in this source tree. */ /* BB_AUDIT SUSv3 compliant */ /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */ /* Option Example * -s, --sysname SunOS * -n, --nodename rocky8 * -r, --release 4.0 * -v, --version * -m, --machine sun * -a, --all SunOS rocky8 4.0 sun * * The default behavior is equivalent to '-s'. * * David MacKenzie <djm@gnu.ai.mit.edu> * * GNU coreutils 6.10: * Option: struct Example(s): * utsname * field: * -s, --kernel-name sysname Linux * -n, --nodename nodename localhost.localdomain * -r, --kernel-release release 2.6.29 * -v, --kernel-version version #1 SMP Sun Jan 11 20:52:37 EST 2009 * -m, --machine machine x86_64 i686 * -p, --processor (none) x86_64 i686 * -i, --hardware-platform (none) x86_64 i386 * NB: vanilla coreutils reports "unknown" -p and -i, * x86_64 and i686/i386 shown above are Fedora's inventions. * -o, --operating-system (none) GNU/Linux * -a, --all: all of the above, in the order shown. * If -p or -i is not known, don't show them */ /* Busyboxed by Erik Andersen * * Before 2003: Glenn McGrath and Manuel Novoa III * Further size reductions. * Mar 16, 2003: Manuel Novoa III (mjn3@codepoet.org) * Now does proper error checking on i/o. Plus some further space savings. * Jan 2009: * Fix handling of -a to not print "unknown", add -o and -i support. */ //usage:#define uname_trivial_usage //usage: "[-amnrspv]" //usage:#define uname_full_usage "\n\n" //usage: "Print system information\n" //usage: "\n -a Print all" //usage: "\n -m The machine (hardware) type" //usage: "\n -n Hostname" //usage: "\n -r OS release" //usage: "\n -s OS name (default)" //usage: "\n -p Processor type" //usage: "\n -v OS version" //usage: //usage:#define uname_example_usage //usage: "$ uname -a\n" //usage: "Linux debian 2.4.23 #2 Tue Dec 23 17:09:10 MST 2003 i686 GNU/Linux\n" #include "libbb.h" /* After libbb.h, since it needs sys/types.h on some systems */ #include <sys/utsname.h> typedef struct { struct utsname name; char processor[sizeof(((struct utsname*)NULL)->machine)]; char platform[sizeof(((struct utsname*)NULL)->machine)]; char os[sizeof("GNU/Linux")]; } uname_info_t; static const char options[] ALIGN1 = "snrvmpioa"; static const unsigned short utsname_offset[] = { offsetof(uname_info_t, name.sysname), /* -s */ offsetof(uname_info_t, name.nodename), /* -n */ offsetof(uname_info_t, name.release), /* -r */ offsetof(uname_info_t, name.version), /* -v */ offsetof(uname_info_t, name.machine), /* -m */ offsetof(uname_info_t, processor), /* -p */ offsetof(uname_info_t, platform), /* -i */ offsetof(uname_info_t, os), /* -o */ }; int uname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int uname_main(int argc UNUSED_PARAM, char **argv) { #if ENABLE_LONG_OPTS static const char uname_longopts[] ALIGN1 = /* name, has_arg, val */ "all\0" No_argument "a" "kernel-name\0" No_argument "s" "nodename\0" No_argument "n" "kernel-release\0" No_argument "r" "release\0" No_argument "r" "kernel-version\0" No_argument "v" "machine\0" No_argument "m" "processor\0" No_argument "p" "hardware-platform\0" No_argument "i" "operating-system\0" No_argument "o" ; #endif uname_info_t uname_info; #if defined(__sparc__) && defined(__linux__) char *fake_sparc = getenv("FAKE_SPARC"); #endif const char *unknown_str = "unknown"; const char *fmt; const unsigned short *delta; unsigned toprint; IF_LONG_OPTS(applet_long_options = uname_longopts); toprint = getopt32(argv, options); if (argv[optind]) { /* coreutils-6.9 compat */ bb_show_usage(); } if (toprint & (1 << 8)) { /* -a => all opts on */ toprint = (1 << 8) - 1; unknown_str = ""; /* -a does not print unknown fields */ } if (toprint == 0) { /* no opts => -s (sysname) */ toprint = 1; } uname(&uname_info.name); /* never fails */ #if defined(__sparc__) && defined(__linux__) if (fake_sparc && (fake_sparc[0] | 0x20) == 'y') { strcpy(uname_info.name.machine, "sparc"); } #endif strcpy(uname_info.processor, unknown_str); strcpy(uname_info.platform, unknown_str); strcpy(uname_info.os, "GNU/Linux"); #if 0 /* Fedora does something like this */ strcpy(uname_info.processor, uname_info.name.machine); strcpy(uname_info.platform, uname_info.name.machine); if (uname_info.platform[0] == 'i' && uname_info.platform[1] && uname_info.platform[2] == '8' && uname_info.platform[3] == '6' ) { uname_info.platform[1] = '3'; } #endif delta = utsname_offset; fmt = " %s" + 1; do { if (toprint & 1) { const char *p = (char *)(&uname_info) + *delta; if (p[0]) { printf(fmt, p); fmt = " %s"; } } ++delta; } while (toprint >>= 1); bb_putchar('\n'); fflush_stdout_and_exit(EXIT_SUCCESS); /* coreutils-6.9 compat */ }