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authorEric Andersen1999-10-26 05:21:02 +0000
committerEric Andersen1999-10-26 05:21:02 +0000
commitc8fdb5638952993dcfe7950e4e2513811e8e9137 (patch)
tree197600c59963c14836a1ee12338484a56ab41269 /coreutils/uname.c
parent8a8fbb87f70dbfbcee4d64b3d82831e2ccc6a587 (diff)
downloadbusybox-c8fdb5638952993dcfe7950e4e2513811e8e9137.zip
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+/* uname -- print system information
+ Copyright (C) 1989-1999 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 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. */
+
+/* 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>
+#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"
+ "Print certain system information. With no OPTION, same as -s.\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)
+{
+ struct utsname name;
+ char processor[256];
+#if defined(__sparc__) && defined(__linux__)
+ char *fake_sparc = getenv("FAKE_SPARC");
+#endif
+
+ toprint = 0;
+
+ /* 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 (toprint == 0)
+ toprint = PRINT_SYSNAME;
+
+ if (uname(&name) == -1)
+ perror("cannot get system name");
+
+#if defined (HAVE_SYSINFO) && defined (SI_ARCHITECTURE)
+ if (sysinfo(SI_ARCHITECTURE, processor, sizeof(processor)) == -1)
+ perror("cannot get processor type");
+}
+
+#else
+ strcpy(processor, "unknown");
+#endif
+
+#if defined(__sparc__) && defined(__linux__)
+ if (fake_sparc != NULL
+ && (fake_sparc[0] == 'y'
+ || fake_sparc[0] == 'Y')) strcpy(name.machine, "sparc");
+#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');
+ }
+}