Function parse_port

net/kernel_socket.cpp:1054–1064

/* Implementations in socket.h */

static int parse_port(estring_view& ep) {
    auto pos = ep.find_last_of(':');
    if (pos == estring::npos) return -1;
    auto port_str = ep.substr(pos + 1);
    if (!port_str.all_digits()) return -1;
    auto port = port_str.to_uint64();
    if (port > UINT16_MAX) return -1;
    ep = (pos > 2 && ep[0] == '[') ? ep.substr(1, pos - 2)
                                   : ep.substr(0, pos);
    return (int)port;
}

static void parse_addr(std::string_view s, IPAddr* addr) {
    if (s.length() >= INET6_ADDRSTRLEN - 1) return;