diff options
Diffstat (limited to 'node_modules/locutus/php/network/inet_pton.js')
| -rw-r--r-- | node_modules/locutus/php/network/inet_pton.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/locutus/php/network/inet_pton.js b/node_modules/locutus/php/network/inet_pton.js new file mode 100644 index 0000000..1aef12b --- /dev/null +++ b/node_modules/locutus/php/network/inet_pton.js @@ -0,0 +1,61 @@ +'use strict'; + +module.exports = function inet_pton(a) { + // eslint-disable-line camelcase + // discuss at: http://locutus.io/php/inet_pton/ + // original by: Theriault (https://github.com/Theriault) + // example 1: inet_pton('::') + // returns 1: '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0' + // example 2: inet_pton('127.0.0.1') + // returns 2: '\x7F\x00\x00\x01' + + var r; + var m; + var x; + var i; + var j; + var f = String.fromCharCode; + + // IPv4 + m = a.match(/^(?:\d{1,3}(?:\.|$)){4}/); + if (m) { + m = m[0].split('.'); + m = f(m[0]) + f(m[1]) + f(m[2]) + f(m[3]); + // Return if 4 bytes, otherwise false. + return m.length === 4 ? m : false; + } + r = /^((?:[\da-f]{1,4}(?::|)){0,8})(::)?((?:[\da-f]{1,4}(?::|)){0,8})$/; + + // IPv6 + m = a.match(r); + if (m) { + // Translate each hexadecimal value. + for (j = 1; j < 4; j++) { + // Indice 2 is :: and if no length, continue. + if (j === 2 || m[j].length === 0) { + continue; + } + m[j] = m[j].split(':'); + for (i = 0; i < m[j].length; i++) { + m[j][i] = parseInt(m[j][i], 16); + // Would be NaN if it was blank, return false. + if (isNaN(m[j][i])) { + // Invalid IP. + return false; + } + m[j][i] = f(m[j][i] >> 8) + f(m[j][i] & 0xFF); + } + m[j] = m[j].join(''); + } + x = m[1].length + m[3].length; + if (x === 16) { + return m[1] + m[3]; + } else if (x < 16 && m[2].length > 0) { + return m[1] + new Array(16 - x + 1).join('\x00') + m[3]; + } + } + + // Invalid IP + return false; +}; +//# sourceMappingURL=inet_pton.js.map
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