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Merge pull request #3752 from andrethomas/development

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MCP230xx - Fix potential buffer overun for EVENT
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Theo Arends 2018-09-10 19:04:23 +02:00 committed by GitHub
commit 1085e218a6
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sonoff/xsns_29_mcp230xx.ino
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@ -300,7 +300,7 @@ void MCP230xx_CheckForInterrupt(void) {
MqttPublishPrefixTopic_P(RESULT_OR_STAT, mqtt_data); MqttPublishPrefixTopic_P(RESULT_OR_STAT, mqtt_data);
} }
if (int_event) { if (int_event) {
char command[18]; char command[19]; // Theoretical max = 'event MCPINT_D16=1' so 18 + 1 (for the \n)
sprintf(command,"event MCPINT_D%i=%i",intp+(mcp230xx_port*8),((mcp230xx_intcap >> intp) & 0x01)); sprintf(command,"event MCPINT_D%i=%i",intp+(mcp230xx_port*8),((mcp230xx_intcap >> intp) & 0x01));
ExecuteCommand(command, SRC_RULE); ExecuteCommand(command, SRC_RULE);
} }