#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: uname.c,v 1.9 1997/10/20 02:16:39 lukem Exp $");
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <err.h>
int main __P((int, char **));
static void usage __P((void));
#define PRINT_SYSNAME 0x01
#define PRINT_NODENAME 0x02
#define PRINT_RELEASE 0x04
#define PRINT_VERSION 0x08
#define PRINT_MACHINE 0x10
#define PRINT_PROCESSOR 0x20
#define PRINT_ALL 0x3f
int
main(argc, argv)
int argc;
char **argv;
{
struct utsname u;
int c;
int space = 0;
int print_mask = 0;
setlocale(LC_ALL, "");
while ((c = getopt(argc,argv,"amnprsv")) != -1 ) {
switch ( c ) {
case 'a':
print_mask |= PRINT_ALL;
break;
case 'm':
print_mask |= PRINT_MACHINE;
break;
case 'n':
print_mask |= PRINT_NODENAME;
break;
case 'p':
print_mask |= PRINT_PROCESSOR;
break;
case 'r':
print_mask |= PRINT_RELEASE;
break;
case 's':
print_mask |= PRINT_SYSNAME;
break;
case 'v':
print_mask |= PRINT_VERSION;
break;
default:
usage();
}
}
if (optind != argc) {
usage();
}
if (!print_mask) {
print_mask = PRINT_SYSNAME;
}
if (uname(&u)) {
err(1, "uname");
}
{
char *s;
s = getenv ("UNAME_SYSNAME"); if (s) strncpy (u.sysname, s, sizeof (u.sysname));
s = getenv ("UNAME_NODENAME"); if (s) strncpy (u.nodename, s, sizeof (u.nodename));
s = getenv ("UNAME_RELEASE"); if (s) strncpy (u.release, s, sizeof (u.release));
s = getenv ("UNAME_VERSION"); if (s) strncpy (u.version, s, sizeof (u.version));
s = getenv ("UNAME_MACHINE"); if (s) strncpy (u.machine, s, sizeof (u.machine));
}
if (print_mask & PRINT_SYSNAME) {
space++;
fputs(u.sysname, stdout);
}
if (print_mask & PRINT_NODENAME) {
if (space++) putchar(' ');
fputs(u.nodename, stdout);
}
if (print_mask & PRINT_RELEASE) {
if (space++) putchar(' ');
fputs(u.release, stdout);
}
if (print_mask & PRINT_VERSION) {
if (space++) putchar(' ');
fputs(u.version, stdout);
}
if (print_mask & PRINT_MACHINE) {
if (space++) putchar(' ');
fputs(u.machine, stdout);
}
if (print_mask & PRINT_PROCESSOR) {
if (space++) putchar(' ');
#if defined(__ppc__)
fputs("powerpc", stdout);
#elif defined(__i386__)
fputs("i386", stdout);
#else
fputs("unknown", stdout);
#endif
}
putchar('\n');
exit(0);
}
static void
usage()
{
fprintf(stderr, "usage: uname [-amnprsv]\n");
exit(1);
}