sbase/uname.c

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2011-06-02 19:32:05 +00:00
/* See LICENSE file for copyright and license details. */
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/utsname.h>
#include "util.h"
int
main(int argc, char *argv[])
{
bool mflag = false;
bool nflag = false;
bool rflag = false;
bool sflag = false;
bool vflag = false;
char c;
struct utsname u;
while((c = getopt(argc, argv, "amnrsv")) != -1)
switch(c) {
case 'a':
mflag = nflag = rflag = sflag = vflag = true;
break;
case 'm':
mflag = true;
break;
case 'n':
nflag = true;
break;
case 'r':
rflag = true;
break;
case 's':
sflag = true;
break;
case 'v':
vflag = true;
break;
default:
exit(EXIT_FAILURE);
}
if(uname(&u) == -1)
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eprintf("uname:");
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if(sflag || !(nflag || rflag || vflag || mflag))
printf("%s ", u.sysname);
if(nflag)
printf("%s ", u.nodename);
if(rflag)
printf("%s ", u.release);
if(vflag)
printf("%s ", u.version);
if(mflag)
printf("%s ", u.machine);
putchar('\n');
return EXIT_SUCCESS;
}