iptools 0.4.1

High-performance IPv4/IPv6 utilities and iterators inspired by Python's iptools
Documentation
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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>iptools WASM</title>
    <link

        href="https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap"

        rel="stylesheet">
    <style>
        :root {
            --bg-dark: #09090b;
            --bg-card: #18181b;
            --bg-input: #27272a;
            --accent: #8b5cf6;
            --accent-hover: #7c3aed;
            --accent-glow: rgba(139, 92, 246, 0.3);
            --text-main: #e4e4e7;
            --text-muted: #a1a1aa;
            --border: #3f3f46;
            --success: #10b981;
            --error: #f43f5e;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Outfit', sans-serif;
            background: linear-gradient(135deg, #09090b 0%, #18181b 100%);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 2rem;
        }

        .container {
            width: 100%;
            max-width: 1000px;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.5rem;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
            border: 1px solid rgba(16, 185, 129, 0.2);
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.1);
        }

        h1 {
            font-size: 1.75rem;
            font-weight: 600;
        }

        .status {
            padding: 0.375rem 0.875rem;
            border-radius: 999px;
            background: rgba(16, 185, 129, 0.2);
            font-size: 0.875rem;
            font-weight: 500;
        }

        .controls {
            display: flex;
            justify-content: center;
        }

        .toggle-group {
            display: inline-flex;
            gap: 0.5rem;
            padding: 0.375rem;
            background: var(--bg-card);
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .toggle-btn {
            padding: 0.5rem 1.25rem;
            border: none;
            border-radius: 8px;
            background: transparent;
            color: var(--text-muted);
            font-family: 'Outfit', sans-serif;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
        }

        .toggle-btn.active {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
            color: white;
            box-shadow: 0 4px 12px var(--accent-glow);
        }

        .toggle-btn:not(.active):hover {
            background: var(--bg-input);
            color: var(--text-main);
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
            gap: 1.25rem;
        }

        .card {
            background: linear-gradient(135deg, #1a1a1d 0%, #18181b 100%);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 1.5rem;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .card:hover {
            border-color: var(--accent);
            box-shadow: 0 8px 24px var(--accent-glow);
            transform: translateY(-2px);
        }

        .card-header {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
            font-size: 0.9rem;
        }

        .input-wrapper {
            display: flex;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        input {
            flex: 1;
            padding: 0.75rem 1rem;
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: 10px;
            color: var(--text-main);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.9rem;
            transition: all 0.2s;
        }

        input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--accent-glow);
        }

        input::placeholder {
            color: var(--text-muted);
            opacity: 0.5;
        }

        button {
            padding: 0.75rem 1.5rem;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
            border: none;
            border-radius: 10px;
            color: white;
            font-family: 'Outfit', sans-serif;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
            box-shadow: 0 4px 12px var(--accent-glow);
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px var(--accent-glow);
        }

        button:active {
            transform: translateY(0);
        }

        .result {
            font-family: 'JetBrains Mono', monospace;
            padding: 0.75rem 1rem;
            background: rgba(139, 92, 246, 0.05);
            border-radius: 10px;
            border: 1px solid rgba(139, 92, 246, 0.2);
            min-height: 2.5rem;
            display: flex;
            align-items: center;
        }

        .result.success {
            color: var(--success);
            background: rgba(16, 185, 129, 0.1);
            border-color: rgba(16, 185, 129, 0.3);
        }

        .result.error {
            color: var(--error);
            background: rgba(244, 63, 94, 0.1);
            border-color: rgba(244, 63, 94, 0.3);
        }

        .result span {
            opacity: 0.6;
        }

        .hidden {
            display: none;
        }

        .button-row {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .button-row button {
            flex: 1;
        }

        .range-card .input-wrapper {
            flex-wrap: wrap;
        }

        .range-card .input-wrapper input {
            flex: 1 1 220px;
        }

        .range-card .button-row {
            width: 100%;
            margin-top: 0.75rem;
        }

        .range-card .button-row button {
            min-width: 120px;
        }

        .range-card .result {
            margin-top: 0.5rem;
            white-space: pre-wrap;
        }

        footer {
            margin-top: auto;
            padding-top: 2rem;
            color: var(--text-muted);
            font-size: 0.875rem;
            text-align: center;
        }

        footer a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s;
        }

        footer a:hover {
            color: var(--accent-hover);
        }

        @media (max-width: 768px) {
            .grid {
                grid-template-columns: 1fr;
            }
        }
    </style>
</head>

<body>
    <div class="container">
        <header>
            <h1>iptools <span style="font-weight:300; opacity:0.5">wasm</span></h1>
            <div class="status" id="status">Initializing...</div>
        </header>

        <div class="controls">
            <div class="toggle-group">
                <button class="toggle-btn active" onclick="setVersion('ipv4')">IPv4</button>
                <button class="toggle-btn" onclick="setVersion('ipv6')">IPv6</button>
            </div>
        </div>

        <div class="grid">
            <!-- Validator -->
            <div class="card">
                <div class="card-header">
                    <span class="card-icon"></span> Validator
                </div>
                <div class="input-wrapper">
                    <input type="text" id="validate-input" placeholder="IP Address">
                    <button onclick="run('validateIP')">Check</button>
                </div>
                <div id="validate-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <!-- CIDR Validator -->
            <div class="card">
                <div class="card-header">
                    <span class="card-icon">#</span> CIDR Validator
                </div>
                <div class="input-wrapper">
                    <input type="text" id="cidr-validate-input" placeholder="CIDR Block">
                    <button onclick="run('validateCIDR')">Check</button>
                </div>
                <div id="cidr-validate-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <!-- IP <-> Long -->
            <div class="card ipv4-only">
                <div class="card-header">
                    <span class="card-icon"></span> IP ↔ Long
                </div>
                <div class="input-wrapper">
                    <input type="text" id="ip-long-input" placeholder="IP or Long">
                    <button onclick="run('ipToLong')">Convert</button>
                </div>
                <div id="ip-long-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <!-- IP <-> Hex -->
            <div class="card ipv4-only">
                <div class="card-header">
                    <span class="card-icon">x</span> IP ↔ Hex
                </div>
                <div class="input-wrapper">
                    <input type="text" id="ip-hex-input" placeholder="IP or Hex">
                    <button onclick="run('ipToHex')">Convert</button>
                </div>
                <div id="ip-hex-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <!-- CIDR Range -->
            <div class="card">
                <div class="card-header">
                    <span class="card-icon"></span> CIDR Range
                </div>
                <div class="input-wrapper">
                    <input type="text" id="cidr-range-input" placeholder="CIDR Block">
                    <button onclick="run('cidrToRange')">Expand</button>
                </div>
                <div id="cidr-range-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <!-- Netmask (IPv4) -->
            <div class="card ipv4-only">
                <div class="card-header">
                    <span class="card-icon">/</span> Netmask ↔ Prefix
                </div>
                <div class="input-wrapper">
                    <input type="text" id="netmask-input" placeholder="Netmask">
                    <button onclick="run('netmaskToPrefix')">Convert</button>
                </div>
                <div id="netmask-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <!-- RFC1924 (IPv6) -->
            <div class="card ipv6-only hidden">
                <div class="card-header">
                    <span class="card-icon">@</span> RFC1924
                </div>
                <div class="input-wrapper">
                    <input type="text" id="rfc1924-input" placeholder="IPv6 or Encoded">
                    <button onclick="run('rfc1924')">Convert</button>
                </div>
                <div id="rfc1924-result" class="result"><span>Waiting for input...</span></div>
            </div>

            <div class="card range-card">
                <div class="card-header">
                    <span class="card-icon"></span> Range Explorer
                </div>
                <div class="input-wrapper">
                    <input type="text" id="range-start" placeholder="10.0.0.0/24">
                    <input type="text" id="range-end" placeholder="Optional end address">
                </div>
                <div class="button-row">
                    <button onclick="run('rangeInit')">Create Range</button>
                    <button onclick="run('rangeNext')">Next IP</button>
                    <button onclick="run('rangeBatch')">Next ×5</button>
                </div>
                <div id="range-info" class="result"><span>Define a range to see details.</span></div>
                <div id="range-iteration" class="result"><span>Iterated addresses will appear here.</span></div>
            </div>
        </div>

        <footer>
            Powered by Rust & WebAssembly. <a href="https://github.com/Deniskore/iptools" target="_blank">Source
                Code</a>
        </footer>
    </div>

    <script type="module">
        import init, * as wasm from './pkg/iptools.js';

        let currentVersion = 'ipv4';
        const samples = {
            ipv4: { ip: '192.168.1.1', cidr: '10.0.0.0/24', netmask: '255.255.255.0', rangeEnd: '10.0.0.10' },
            ipv6: { ip: '2001:db8::1', cidr: '2001:db8::/32', rangeEnd: '2001:db8::10' }
        };
        let rangeHandle = null;
        let rangeIterator = null;

        async function main() {
            await init();
            document.getElementById('status').textContent = 'Ready';
            document.getElementById('status').style.color = 'var(--success)';
            updatePlaceholders();
            resetRangeState();
        }

        window.setVersion = (ver) => {
            currentVersion = ver;
            document.querySelectorAll('.toggle-btn').forEach(b => b.classList.remove('active'));
            event.target.classList.add('active');

            document.querySelectorAll('.ipv4-only').forEach(el => el.classList.toggle('hidden', ver !== 'ipv4'));
            document.querySelectorAll('.ipv6-only').forEach(el => el.classList.toggle('hidden', ver !== 'ipv6'));

            updatePlaceholders();
            clearResults();
        };

        function updatePlaceholders() {
            const s = samples[currentVersion];
            document.getElementById('validate-input').placeholder = s.ip;
            document.getElementById('cidr-validate-input').placeholder = s.cidr;
            document.getElementById('cidr-range-input').placeholder = s.cidr;
            document.getElementById('range-start').placeholder = s.cidr;
            document.getElementById('range-end').placeholder = `${s.rangeEnd} (optional)`;
            if (currentVersion === 'ipv4') {
                document.getElementById('ip-long-input').placeholder = s.ip;
                document.getElementById('ip-hex-input').placeholder = s.ip;
                document.getElementById('netmask-input').placeholder = s.netmask;
            } else {
                document.getElementById('rfc1924-input').placeholder = s.ip;
            }
        }

        function clearResults() {
            document.querySelectorAll('.result').forEach(el => {
                if (el.id === 'range-info' || el.id === 'range-iteration') {
                    return;
                }
                el.innerHTML = '<span>Waiting for input...</span>';
                el.className = 'result';
            });
            resetRangeState();
        }

        function resetRangeState() {
            rangeHandle = null;
            rangeIterator = null;
            const info = document.getElementById('range-info');
            info.innerHTML = '<span>Define a range to see details.</span>';
            info.className = 'result';
            const iter = document.getElementById('range-iteration');
            iter.innerHTML = '<span>Iterated addresses will appear here.</span>';
            iter.className = 'result';
        }

        function formatRangeItem(item) {
            const longValue = typeof item.long === 'bigint'
                ? `${item.long.toString()}n`
                : item.long;
            return `${item.ip} (${longValue})`;
        }

        function setRangeOutput(id, text, isError = false) {
            const el = document.getElementById(id);
            el.textContent = text;
            el.className = isError ? 'result error' : 'result success';
        }

        window.run = (action) => {
            const output = (id, text, isError = false) => {
                const el = document.getElementById(id);
                el.textContent = text;
                el.className = isError ? 'result error' : 'result success';
            };

            try {
                switch (action) {
                    case 'validateIP': {
                        const val = document.getElementById('validate-input').value || samples[currentVersion].ip;
                        const valid = currentVersion === 'ipv4' ? wasm.ipv4_validate_ip(val) : wasm.ipv6_validate_ip(val);
                        output('validate-result', valid ? 'Valid Address' : 'Invalid Address', !valid);
                        break;
                    }
                    case 'validateCIDR': {
                        const val = document.getElementById('cidr-validate-input').value || samples[currentVersion].cidr;
                        const valid = currentVersion === 'ipv4' ? wasm.ipv4_validate_cidr(val) : wasm.ipv6_validate_cidr(val);
                        output('cidr-validate-result', valid ? 'Valid CIDR' : 'Invalid CIDR', !valid);
                        break;
                    }
                    case 'ipToLong': {
                        const val = document.getElementById('ip-long-input').value || samples.ipv4.ip;
                        if (val.includes('.')) {
                            const long = wasm.ipv4_ip2long(val);
                            output('ip-long-result', `Long: ${long}`);
                        } else {
                            const ip = wasm.ipv4_long2ip(parseInt(val));
                            output('ip-long-result', `IP: ${ip}`);
                        }
                        break;
                    }
                    case 'ipToHex': {
                        const val = document.getElementById('ip-hex-input').value || samples.ipv4.ip;
                        if (val.includes('.')) {
                            const hex = wasm.ipv4_ip2hex(val);
                            output('ip-hex-result', `Hex: ${hex}`);
                        } else {
                            const ip = wasm.ipv4_hex2ip(val);
                            output('ip-hex-result', `IP: ${ip}`);
                        }
                        break;
                    }
                    case 'cidrToRange': {
                        const val = document.getElementById('cidr-range-input').value || samples[currentVersion].cidr;
                        const [start, end] = currentVersion === 'ipv4' ? wasm.ipv4_cidr2block(val) : wasm.ipv6_cidr2block(val);
                        output('cidr-range-result', `${start}  ${end}`);
                        break;
                    }
                    case 'netmaskToPrefix': {
                        const val = document.getElementById('netmask-input').value || samples.ipv4.netmask;
                        const prefix = wasm.ipv4_netmask2prefix(val);
                        output('netmask-result', `Prefix: /${prefix}`);
                        break;
                    }
                    case 'rfc1924': {
                        const val = document.getElementById('rfc1924-input').value || samples.ipv6.ip;
                        if (val.includes(':')) {
                            const long = wasm.ipv6_ip2long(val);
                            const rfc = wasm.ipv6_long2rfc1924(long);
                            output('rfc1924-result', `Long (BigInt): ${long.toString()}n  RFC1924: ${rfc}`);
                        } else {
                            const long = wasm.ipv6_rfc19242long(val);
                            const ip = wasm.ipv6_long2ip(long, false);
                            output('rfc1924-result', `Encoded BigInt: ${long.toString()}n  IP: ${ip}`);
                        }
                        break;
                    }
                    case 'rangeInit': {
                        const start = document.getElementById('range-start').value.trim() || samples[currentVersion].cidr;
                        const rawEnd = document.getElementById('range-end').value.trim();
                        const end = rawEnd.length ? rawEnd : undefined;
                        rangeHandle = currentVersion === 'ipv4'
                            ? new wasm.Ipv4Range(start, end)
                            : new wasm.Ipv6Range(start, end);
                        rangeIterator = rangeHandle.iter();
                        const [startIp, endIp] = rangeHandle.range();
                        const len = rangeHandle.len();
                        const remaining = rangeHandle.remaining();
                        const lenText = typeof len === 'bigint' ? `${len.toString()}n` : `${len}`;
                        const remText = typeof remaining === 'bigint' ? `${remaining.toString()}n` : `${remaining}`;
                        setRangeOutput('range-info', `${startIp}  ${endIp} (${lenText} total, ${remText} remaining)`);
                        const iter = document.getElementById('range-iteration');
                        iter.innerHTML = '<span>Use the iteration buttons to walk the range.</span>';
                        iter.className = 'result';
                        break;
                    }
                    case 'rangeNext': {
                        if (!rangeIterator) {
                            setRangeOutput('range-iteration', 'Create a range first.', true);
                            break;
                        }
                        const item = rangeIterator.next();
                        if (!item) {
                            setRangeOutput('range-iteration', 'Range exhausted.', true);
                        } else {
                            setRangeOutput('range-iteration', `Next: ${formatRangeItem(item)}`);
                        }
                        break;
                    }
                    case 'rangeBatch': {
                        if (!rangeIterator) {
                            setRangeOutput('range-iteration', 'Create a range first.', true);
                            break;
                        }
                        const items = [];
                        for (let i = 0; i < 5; i++) {
                            const item = rangeIterator.next();
                            if (!item) break;
                            items.push(formatRangeItem(item));
                        }
                        if (!items.length) {
                            setRangeOutput('range-iteration', 'Range exhausted.', true);
                        } else {
                            setRangeOutput('range-iteration', items.join('\n'));
                        }
                        break;
                    }
                }
            } catch (e) {
                const id = {
                    'validateIP': 'validate-result',
                    'validateCIDR': 'cidr-validate-result',
                    'ipToLong': 'ip-long-result',
                    'ipToHex': 'ip-hex-result',
                    'cidrToRange': 'cidr-range-result',
                    'netmaskToPrefix': 'netmask-result',
                    'rfc1924': 'rfc1924-result',
                    'rangeInit': 'range-info',
                    'rangeNext': 'range-iteration',
                    'rangeBatch': 'range-iteration'
                }[action];
                output(id, `Error: ${e}`, true);
                if (action.startsWith('range')) {
                    resetRangeState();
                }
            }
        };

        main();
    </script>
</body>

</html>