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// SPDX-License-Identifier: MPL-2.0
// (c) Hare authors <https://harelang.org>
// Provides default dialers for tcp and udp
use net;
use net::ip;
use net::tcp;
use net::udp;
fn dial_tcp(addr: str, service: str) (net::socket | error) = {
const result = match (resolve("tcp", addr, service)) {
case let r: ([]ip::addr, u16) =>
yield r;
case nomem =>
return nomem;
case let e: error =>
return e;
};
const addrs = result.0, port = result.1;
defer free(addrs);
for (let i = 0z; i < len(addrs); i += 1) {
const addr = addrs[i];
match (tcp::connect(addr, port)) {
case let conn: net::socket =>
return conn;
case let err: net::error =>
if (i + 1 >= len(addrs)) {
return err;
};
};
};
abort(); // Unreachable
};
fn dial_udp(addr: str, service: str) (net::socket | error) = {
const result = match (resolve("udp", addr, service)) {
case let r: ([]ip::addr, u16) =>
yield r;
case nomem =>
return nomem;
case let e: error =>
return e;
};
const addrs = result.0, port = result.1;
defer free(addrs);
for (let i = 0z; i < len(addrs); i += 1) {
const addr = addrs[i];
match (udp::connect(addr, port)) {
case let sock: net::socket =>
return sock;
case let err: net::error =>
if (i + 1 >= len(addrs)) {
return err;
};
};
};
abort(); // Unreachable
};
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