+/* vi: set sw=4 ts=4: */
/* uname -- print system information
- Copyright (C) 1989-1999 Free Software Foundation, Inc.
+ * Copyright (C) 1989-1999 Free Software Foundation, Inc.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
- 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 2, 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, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/* 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> */
-
-/* Busyboxed by Erik Andersen */
-
-#include "internal.h"
-#include <stdio.h>
-#include <sys/types.h>
+ * -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.
+ */
+
+#include "libbb.h"
+/* After libbb.h, since it needs sys/types.h on some systems */
#include <sys/utsname.h>
-#if defined (HAVE_SYSINFO) && defined (HAVE_SYS_SYSTEMINFO_H)
-# include <sys/systeminfo.h>
-#endif
-
-
-static const char uname_usage[] =
- "uname [OPTION]...\n\n"
- "Print certain system information. With no OPTION, same as -s.\n\n"
- "Options:\n"
- "\t-a\tprint all information\n"
- "\t-m\tthe machine (hardware) type\n"
- "\t-n\tprint the machine's network node hostname\n"
- "\t-r\tprint the operating system release\n"
- "\t-s\tprint the operating system name\n"
- "\t-p\tprint the host processor type\n"
- "\t-v\tprint the operating system version\n";
-
-
-static void print_element(unsigned int mask, char *element);
-
-/* Values that are bitwise or'd into `toprint'. */
-/* Operating system name. */
-#define PRINT_SYSNAME 1
-
-/* Node name on a communications network. */
-#define PRINT_NODENAME 2
-
-/* Operating system release. */
-#define PRINT_RELEASE 4
-
-/* Operating system version. */
-#define PRINT_VERSION 8
-
-/* Machine hardware name. */
-#define PRINT_MACHINE 16
-
- /* Host processor type. */
-#define PRINT_PROCESSOR 32
-
-/* Mask indicating which elements of the name to print. */
-static unsigned char toprint;
-
-
-int uname_main(int argc, char **argv)
+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)
{
- struct utsname name;
- char processor[256];
+#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");
+ char *fake_sparc = getenv("FAKE_SPARC");
#endif
+ const char *unknown_str = "unknown";
+ const char *fmt;
+ const unsigned short *delta;
+ unsigned toprint;
- toprint = 0;
+ IF_LONG_OPTS(applet_long_options = uname_longopts);
+ toprint = getopt32(argv, options);
- /* Parse any options */
- //fprintf(stderr, "argc=%d, argv=%s\n", argc, *argv);
- while (--argc > 0 && **(++argv) == '-') {
- while (*(++(*argv))) {
- switch (**argv) {
- case 's':
- toprint |= PRINT_SYSNAME;
- break;
- case 'n':
- toprint |= PRINT_NODENAME;
- break;
- case 'r':
- toprint |= PRINT_RELEASE;
- break;
- case 'v':
- toprint |= PRINT_VERSION;
- break;
- case 'm':
- toprint |= PRINT_MACHINE;
- break;
- case 'p':
- toprint |= PRINT_PROCESSOR;
- break;
- case 'a':
- toprint = (PRINT_SYSNAME | PRINT_NODENAME | PRINT_RELEASE |
- PRINT_PROCESSOR | PRINT_VERSION |
- PRINT_MACHINE);
- break;
- default:
- usage(uname_usage);
- }
+ if (argv[optind]) { /* coreutils-6.9 compat */
+ bb_show_usage();
}
- }
-
- if (toprint == 0)
- toprint = PRINT_SYSNAME;
- if (uname(&name) == -1)
- perror("cannot get system name");
+ if (toprint & (1 << 8)) { /* -a => all opts on */
+ toprint = (1 << 8) - 1;
+ unknown_str = ""; /* -a does not print unknown fields */
+ }
-#if defined (HAVE_SYSINFO) && defined (SI_ARCHITECTURE)
- if (sysinfo(SI_ARCHITECTURE, processor, sizeof(processor)) == -1)
- perror("cannot get processor type");
-}
+ if (toprint == 0) { /* no opts => -s (sysname) */
+ toprint = 1;
+ }
-#else
- strcpy(processor, "unknown");
-#endif
+ uname(&uname_info.name); /* never fails */
#if defined(__sparc__) && defined(__linux__)
- if (fake_sparc != NULL
- && (fake_sparc[0] == 'y'
- || fake_sparc[0] == 'Y')) strcpy(name.machine, "sparc");
+ 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
- print_element(PRINT_SYSNAME, name.sysname);
- print_element(PRINT_NODENAME, name.nodename);
- print_element(PRINT_RELEASE, name.release);
- print_element(PRINT_VERSION, name.version);
- print_element(PRINT_MACHINE, name.machine);
- print_element(PRINT_PROCESSOR, processor);
-
- exit(TRUE);
-}
-
-/* If the name element set in MASK is selected for printing in `toprint',
- print ELEMENT; then print a space unless it is the last element to
- be printed, in which case print a newline. */
-
-static void print_element(unsigned int mask, char *element)
-{
- if (toprint & mask) {
- toprint &= ~mask;
- printf("%s%c", element, toprint ? ' ' : '\n');
- }
+ 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 */
}
projects / oweals / busybox.git / blobdiff