arduino/Adafruit_MQTT_Library
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also fixed 'multiplier overflow' bug - YAY COMPILERS

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This commit is contained in:
ladyada
2016-06-07 22:39:07 -04:00
parent 7e888e576a
commit 58f5d0cda6
2 changed files with 6 additions and 7 deletions
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5
Adafruit_MQTT.cpp
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@ -253,7 +253,7 @@ uint16_t Adafruit_MQTT::readFullPacket(uint8_t *buffer, uint16_t timeout) {
rlen = readPacket(pbuff, 1, timeout);
if (rlen != 1) return 0;
//DEBUG_PRINT(F("Packet Type:\t")); DEBUG_PRINTBUFFER(pbuff, rlen);
DEBUG_PRINT(F("Packet Type:\t")); DEBUG_PRINTBUFFER(pbuff, rlen);
pbuff++;
uint32_t value = 0;
@ -265,12 +265,11 @@ uint16_t Adafruit_MQTT::readFullPacket(uint8_t *buffer, uint16_t timeout) {
if (rlen != 1) return 0;
encodedByte = pbuff[0]; // save the last read val
pbuff++; // get ready for reading the next byte
uint32_t intermediate = encodedByte & 0x7F;
intermediate *= multiplier;
value += intermediate;
multiplier *= 128;
if (multiplier > 128*128*128) {
if (multiplier > (128UL*128UL*128UL)) {
DEBUG_PRINT(F("Malformed packet len\n"));
return 0;
}