int checkboard (void)
{
- char *s = getenv ("serial#");
+ char buf[64];
+ int i;
+ int l = getenv_f("serial#", buf, sizeof(buf));
puts ("Board: RRvision ");
- for (; s && *s; ++s) {
- if (*s == ' ')
+ for (i=0; i < l; ++i) {
+ if (buf[i] == ' ')
break;
- putc (*s);
+ putc (buf[i]);
}
putc ('\n');