ref: c6a92afc7ac0382d90bf0fbd1d2e3e258a57aad4
dir: /sys/src/libc/9sys/sysname.c/
#include <u.h>
#include <libc.h>
char*
sysname(void)
{
int f, n;
static char b[128];
if(b[0])
return b;
f = open("/dev/sysname", OREAD|OCEXEC);
if(f >= 0) {
n = read(f, b, sizeof(b)-1);
if(n > 0)
b[n] = 0;
close(f);
}
return b;
}