1#include <unistd.h>
 2#include <sys/utsname.h>
 3
 4int gethostname(char *name, size_t len)
 5{
 6	size_t i;
 7	struct utsname uts;
 8	if (uname(&uts)) return -1;
 9	if (len > sizeof uts.nodename) len = sizeof uts.nodename;
10	for (i=0; i<len && (name[i] = uts.nodename[i]); i++);
11	if (i && i==len) name[i-1] = 0;
12	return 0;
13}