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/* vi: set sw=4 ts=4: */
/* 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\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"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"
#endif
;
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');
}
}
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