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add RFC 3927 IP address space to private IP checks #5115

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merged 1 commit into from
Oct 21, 2024
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add RFC 3927 IP address space to private IP checks #5115

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3 changes: 2 additions & 1 deletion src/mqtt/MQTT.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -746,7 +746,8 @@ bool MQTT::isPrivateIpAddress(const char address[])
}

// Check the easy ones first.
if (strcmp(address, "127.0.0.1") == 0 || strncmp(address, "10.", 3) == 0 || strncmp(address, "192.168", 7) == 0) {
if (strcmp(address, "127.0.0.1") == 0 || strncmp(address, "10.", 3) == 0 || strncmp(address, "192.168", 7) == 0 ||
strncmp(address, "169.254", 7) == 0) {
return true;
}

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