blob: 2e17d3871b19dc974b73d794c0a6a09a712e3316 [file] [log] [blame]
/* uname.c - return system name
* Copyright 2008 Rob Landley <>
* See
USE_UNAME(NEWTOY(uname, "oamvrns[+os]", TOYFLAG_BIN))
config UNAME
bool "uname"
default y
usage: uname [-asnrvm]
Print system information.
-s System name
-n Network (domain) name
-r Kernel Release number
-v Kernel Version
-m Machine (hardware) name
-a All of the above
#define FOR_uname
#include "toys.h"
// If a 32 bit x86 build environment working in a chroot under an x86-64
// kernel returns x86_64 for -m it confuses ./configure. Special case it.
#if defined(__i686__)
#define GROSS "i686"
#elif defined(__i586__)
#define GROSS "i586"
#elif defined(__i486__)
#define GROSS "i486"
#elif defined(__i386__)
#define GROSS "i386"
void uname_main(void)
int i, flags = toys.optflags, needspace=0;
uname((void *)toybuf);
if (!flags) flags = FLAG_s;
for (i=0; i<5; i++) {
char *c = toybuf+(65*i);
if (flags & ((1<<i)|FLAG_a)) {
int len = strlen(c);
// This problem originates in autoconf, so of course the solution
// is horribly ugly.
#ifdef GROSS
if (i==4 && !strcmp(c,"x86_64")) {
if (needspace++) {
// We can't decrement on the first entry, because
// needspace would be 0
*(--c)=' ';
xwrite(1, c, len);