mirror of
https://codeberg.org/ziglang/zig.git
synced 2025-12-06 05:44:20 +00:00
361 lines
13 KiB
Zig
361 lines
13 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const net = std.Io.net;
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const mem = std.mem;
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const testing = std.testing;
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test "parse and render IP addresses at comptime" {
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comptime {
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const ipv6addr = net.IpAddress.parse("::1", 0) catch unreachable;
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try testing.expectFmt("[::1]:0", "{f}", .{ipv6addr});
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const ipv4addr = net.IpAddress.parse("127.0.0.1", 0) catch unreachable;
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try testing.expectFmt("127.0.0.1:0", "{f}", .{ipv4addr});
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try testing.expectError(error.ParseFailed, net.IpAddress.parse("::123.123.123.123", 0));
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try testing.expectError(error.ParseFailed, net.IpAddress.parse("127.01.0.1", 0));
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}
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}
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test "format IPv6 address with no zero runs" {
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const addr = try net.IpAddress.parseIp6("2001:db8:1:2:3:4:5:6", 0);
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try testing.expectFmt("[2001:db8:1:2:3:4:5:6]:0", "{f}", .{addr});
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}
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test "parse IPv6 addresses and check compressed form" {
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try testing.expectFmt("[2001:db8::1:0:0:2]:0", "{f}", .{
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try net.IpAddress.parseIp6("2001:0db8:0000:0000:0001:0000:0000:0002", 0),
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});
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try testing.expectFmt("[2001:db8::1:2]:0", "{f}", .{
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try net.IpAddress.parseIp6("2001:0db8:0000:0000:0000:0000:0001:0002", 0),
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});
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try testing.expectFmt("[2001:db8:1:0:1::2]:0", "{f}", .{
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try net.IpAddress.parseIp6("2001:0db8:0001:0000:0001:0000:0000:0002", 0),
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});
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}
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test "parse IPv6 address, check raw bytes" {
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const expected_raw: [16]u8 = .{
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0x20, 0x01, 0x0d, 0xb8, // 2001:db8
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0x00, 0x00, 0x00, 0x00, // :0000:0000
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0x00, 0x01, 0x00, 0x00, // :0001:0000
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0x00, 0x00, 0x00, 0x02, // :0000:0002
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};
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const addr = try net.IpAddress.parseIp6("2001:db8:0000:0000:0001:0000:0000:0002", 0);
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try testing.expectEqualSlices(u8, &expected_raw, &addr.ip6.bytes);
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}
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test "parse and render IPv6 addresses" {
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// TODO make this test parsing and rendering only, then it doesn't need I/O
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const io = testing.io;
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var buffer: [100]u8 = undefined;
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const ips = [_][]const u8{
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"FF01:0:0:0:0:0:0:FB",
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"FF01::Fb",
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"::1",
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"::",
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"1::",
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"2001:db8::",
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"::1234:5678",
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"2001:db8::1234:5678",
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"FF01::FB%1234",
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"::ffff:123.5.123.5",
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};
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const printed = [_][]const u8{
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"ff01::fb",
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"ff01::fb",
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"::1",
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"::",
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"1::",
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"2001:db8::",
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"::1234:5678",
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"2001:db8::1234:5678",
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"ff01::fb%1234",
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"::ffff:123.5.123.5",
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};
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for (ips, 0..) |ip, i| {
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const addr = net.IpAddress.parseIp6(ip, 0) catch unreachable;
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var newIp = std.fmt.bufPrint(buffer[0..], "{f}", .{addr}) catch unreachable;
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try testing.expect(std.mem.eql(u8, printed[i], newIp[1 .. newIp.len - 3]));
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if (builtin.os.tag == .linux) {
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const addr_via_resolve = net.IpAddress.resolveIp6(io, ip, 0) catch unreachable;
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var newResolvedIp = std.fmt.bufPrint(buffer[0..], "{f}", .{addr_via_resolve}) catch unreachable;
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try testing.expect(std.mem.eql(u8, printed[i], newResolvedIp[1 .. newResolvedIp.len - 3]));
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}
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}
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try testing.expectError(error.InvalidCharacter, net.IpAddress.parseIp6(":::", 0));
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try testing.expectError(error.Overflow, net.IpAddress.parseIp6("FF001::FB", 0));
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try testing.expectError(error.InvalidCharacter, net.IpAddress.parseIp6("FF01::Fb:zig", 0));
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try testing.expectError(error.InvalidEnd, net.IpAddress.parseIp6("FF01:0:0:0:0:0:0:FB:", 0));
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try testing.expectError(error.Incomplete, net.IpAddress.parseIp6("FF01:", 0));
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try testing.expectError(error.InvalidIpv4Mapping, net.IpAddress.parseIp6("::123.123.123.123", 0));
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try testing.expectError(error.Incomplete, net.IpAddress.parseIp6("1", 0));
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// TODO Make this test pass on other operating systems.
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if (builtin.os.tag == .linux or comptime builtin.os.tag.isDarwin() or builtin.os.tag == .windows) {
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try testing.expectError(error.Incomplete, net.IpAddress.resolveIp6(io, "ff01::fb%", 0));
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// Assumes IFNAMESIZE will always be a multiple of 2
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try testing.expectError(error.Overflow, net.IpAddress.resolveIp6(io, "ff01::fb%wlp3" ++ "s0" ** @divExact(std.posix.IFNAMESIZE - 4, 2), 0));
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try testing.expectError(error.Overflow, net.IpAddress.resolveIp6(io, "ff01::fb%12345678901234", 0));
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}
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}
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test "invalid but parseable IPv6 scope ids" {
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const io = testing.io;
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if (builtin.os.tag != .linux and comptime !builtin.os.tag.isDarwin() and builtin.os.tag != .windows) {
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// Currently, resolveIp6 with alphanumerical scope IDs only works on Linux.
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// TODO Make this test pass on other operating systems.
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return error.SkipZigTest;
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}
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try testing.expectError(error.InterfaceNotFound, net.IpAddress.resolveIp6(io, "ff01::fb%123s45678901234", 0));
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}
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test "parse and render IPv4 addresses" {
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var buffer: [18]u8 = undefined;
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for ([_][]const u8{
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"0.0.0.0",
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"255.255.255.255",
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"1.2.3.4",
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"123.255.0.91",
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"127.0.0.1",
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}) |ip| {
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const addr = net.IpAddress.parseIp4(ip, 0) catch unreachable;
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var newIp = std.fmt.bufPrint(buffer[0..], "{f}", .{addr}) catch unreachable;
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try testing.expect(std.mem.eql(u8, ip, newIp[0 .. newIp.len - 2]));
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}
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try testing.expectError(error.Overflow, net.IpAddress.parseIp4("256.0.0.1", 0));
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try testing.expectError(error.InvalidCharacter, net.IpAddress.parseIp4("x.0.0.1", 0));
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try testing.expectError(error.InvalidEnd, net.IpAddress.parseIp4("127.0.0.1.1", 0));
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try testing.expectError(error.Incomplete, net.IpAddress.parseIp4("127.0.0.", 0));
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try testing.expectError(error.InvalidCharacter, net.IpAddress.parseIp4("100..0.1", 0));
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try testing.expectError(error.NonCanonical, net.IpAddress.parseIp4("127.01.0.1", 0));
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}
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test "resolve DNS" {
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if (builtin.os.tag == .wasi) return error.SkipZigTest;
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const io = testing.io;
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// Resolve localhost, this should not fail.
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{
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const localhost_v4 = try net.IpAddress.parse("127.0.0.1", 80);
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const localhost_v6 = try net.IpAddress.parse("::2", 80);
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var addresses_buffer: [8]net.IpAddress = undefined;
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var canon_name_buffer: [net.HostName.max_len]u8 = undefined;
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const result = try net.HostName.lookup(try .init("localhost"), io, .{
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.port = 80,
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.addresses_buffer = &addresses_buffer,
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.canonical_name_buffer = &canon_name_buffer,
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});
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for (addresses_buffer[0..result.addresses_len]) |addr| {
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if (addr.eql(&localhost_v4) or addr.eql(&localhost_v6)) break;
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} else @panic("unexpected address for localhost");
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}
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{
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// The tests are required to work even when there is no Internet connection,
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// so some of these errors we must accept and skip the test.
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var addresses_buffer: [8]net.IpAddress = undefined;
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var canon_name_buffer: [net.HostName.max_len]u8 = undefined;
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const result = net.HostName.lookup(try .init("example.com"), io, .{
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.port = 80,
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.addresses_buffer = &addresses_buffer,
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.canonical_name_buffer = &canon_name_buffer,
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}) catch |err| switch (err) {
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error.UnknownHostName => return error.SkipZigTest,
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error.NameServerFailure => return error.SkipZigTest,
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else => return err,
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};
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_ = result;
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}
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}
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test "listen on a port, send bytes, receive bytes" {
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if (builtin.single_threaded) return error.SkipZigTest;
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if (builtin.os.tag == .wasi) return error.SkipZigTest;
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const io = testing.io;
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if (builtin.os.tag == .windows) {
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_ = try std.os.windows.WSAStartup(2, 2);
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}
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defer {
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if (builtin.os.tag == .windows) {
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std.os.windows.WSACleanup() catch unreachable;
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}
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}
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// Try only the IPv4 variant as some CI builders have no IPv6 localhost
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// configured.
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const localhost: net.IpAddress = .{ .ip4 = .loopback(0) };
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var server = try localhost.listen(io, .{});
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defer server.deinit(io);
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const S = struct {
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fn clientFn(server_address: net.IpAddress) !void {
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var stream = try server_address.connect(io, .{ .mode = .stream });
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defer stream.close(io);
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var stream_writer = stream.writer(io, &.{});
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try stream_writer.interface.writeAll("Hello world!");
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}
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};
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const t = try std.Thread.spawn(.{}, S.clientFn, .{server.socket.address});
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defer t.join();
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var stream = try server.accept(io);
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defer stream.close(io);
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var buf: [16]u8 = undefined;
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var stream_reader = stream.reader(io, &.{});
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const n = try stream_reader.interface.readSliceShort(&buf);
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try testing.expectEqual(@as(usize, 12), n);
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try testing.expectEqualSlices(u8, "Hello world!", buf[0..n]);
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}
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test "listen on an in use port" {
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if (builtin.os.tag != .linux and comptime !builtin.os.tag.isDarwin() and builtin.os.tag != .windows) {
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// TODO build abstractions for other operating systems
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return error.SkipZigTest;
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}
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const io = testing.io;
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const localhost: net.IpAddress = .{ .ip4 = .loopback(0) };
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var server1 = try localhost.listen(io, .{ .reuse_address = true });
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defer server1.deinit(io);
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var server2 = try server1.socket.address.listen(io, .{ .reuse_address = true });
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defer server2.deinit(io);
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}
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fn testClientToHost(allocator: mem.Allocator, name: []const u8, port: u16) anyerror!void {
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if (builtin.os.tag == .wasi) return error.SkipZigTest;
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const connection = try net.tcpConnectToHost(allocator, name, port);
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defer connection.close();
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var buf: [100]u8 = undefined;
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const len = try connection.read(&buf);
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const msg = buf[0..len];
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try testing.expect(mem.eql(u8, msg, "hello from server\n"));
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}
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fn testClient(addr: net.IpAddress) anyerror!void {
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if (builtin.os.tag == .wasi) return error.SkipZigTest;
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const socket_file = try net.tcpConnectToAddress(addr);
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defer socket_file.close();
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var buf: [100]u8 = undefined;
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const len = try socket_file.read(&buf);
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const msg = buf[0..len];
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try testing.expect(mem.eql(u8, msg, "hello from server\n"));
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}
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fn testServer(server: *net.Server) anyerror!void {
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if (builtin.os.tag == .wasi) return error.SkipZigTest;
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const io = testing.io;
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var stream = try server.accept(io);
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var writer = stream.writer(io, &.{});
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try writer.interface.print("hello from server\n", .{});
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}
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test "listen on a unix socket, send bytes, receive bytes" {
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if (builtin.single_threaded) return error.SkipZigTest;
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if (!net.has_unix_sockets) return error.SkipZigTest;
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const io = testing.io;
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if (builtin.os.tag == .windows) {
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_ = try std.os.windows.WSAStartup(2, 2);
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}
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defer {
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if (builtin.os.tag == .windows) {
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std.os.windows.WSACleanup() catch unreachable;
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}
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}
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const socket_path = try generateFileName("socket.unix");
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defer testing.allocator.free(socket_path);
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const socket_addr = try net.UnixAddress.init(socket_path);
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defer std.fs.cwd().deleteFile(socket_path) catch {};
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var server = try socket_addr.listen(io);
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defer server.socket.close(io);
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const S = struct {
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fn clientFn(path: []const u8) !void {
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const server_path: net.UnixAddress = try .init(path);
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var stream = try server_path.connect(io);
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defer stream.close(io);
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var stream_writer = stream.writer(io, &.{});
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try stream_writer.interface.writeAll("Hello world!");
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}
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};
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const t = try std.Thread.spawn(.{}, S.clientFn, .{socket_path});
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defer t.join();
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var stream = try server.accept(io);
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defer stream.close(io);
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var buf: [16]u8 = undefined;
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var stream_reader = stream.reader(io, &.{});
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const n = try stream_reader.interface.readSliceShort(&buf);
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try testing.expectEqual(@as(usize, 12), n);
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try testing.expectEqualSlices(u8, "Hello world!", buf[0..n]);
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}
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fn generateFileName(base_name: []const u8) ![]const u8 {
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const random_bytes_count = 12;
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const sub_path_len = comptime std.fs.base64_encoder.calcSize(random_bytes_count);
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var random_bytes: [12]u8 = undefined;
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std.crypto.random.bytes(&random_bytes);
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var sub_path: [sub_path_len]u8 = undefined;
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_ = std.fs.base64_encoder.encode(&sub_path, &random_bytes);
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return std.fmt.allocPrint(testing.allocator, "{s}-{s}", .{ sub_path[0..], base_name });
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}
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test "non-blocking tcp server" {
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if (builtin.os.tag == .wasi) return error.SkipZigTest;
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if (true) {
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// https://github.com/ziglang/zig/issues/18315
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return error.SkipZigTest;
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}
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const io = testing.io;
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const localhost: net.IpAddress = .{ .ip4 = .loopback(0) };
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var server = localhost.listen(io, .{ .force_nonblocking = true });
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defer server.deinit(io);
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const accept_err = server.accept(io);
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try testing.expectError(error.WouldBlock, accept_err);
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const socket_file = try net.tcpConnectToAddress(server.socket.address);
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defer socket_file.close();
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var stream = try server.accept(io);
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defer stream.close(io);
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var writer = stream.writer(io, .{});
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try writer.interface.print("hello from server\n", .{});
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var buf: [100]u8 = undefined;
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const len = try socket_file.read(&buf);
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const msg = buf[0..len];
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try testing.expect(mem.eql(u8, msg, "hello from server\n"));
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}
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