21 lines
430 B
Arduino
21 lines
430 B
Arduino
/** Is this an IP? */
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boolean isIp(String str) {
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for (size_t i = 0; i < str.length(); i++) {
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int c = str.charAt(i);
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if (c != '.' && (c < '0' || c > '9')) {
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return false;
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}
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}
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return true;
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}
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/** IP to String? */
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String toStringIp(IPAddress ip) {
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String res = "";
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for (int i = 0; i < 3; i++) {
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res += String((ip >> (8 * i)) & 0xFF) + ".";
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}
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res += String(((ip >> 8 * 3)) & 0xFF);
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return res;
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}
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