long hostname_len = sysconf(_SC_HOST_NAME_MAX);
if (hostname_len == -1) {
hostname_len = NI_MAXHOST;
}
char hostname[hostname_len];
long hostname_len = sysconf(_SC_HOST_NAME_MAX);
if (hostname_len == -1) {
hostname_len = NI_MAXHOST;
}
char hostname[hostname_len];