Ensure 0-byte payloads result in an error

PowerBroker2 · web-flow · commit fb0617622d8b · 2021-03-20T00:37:47.000-04:00
diff --git a/src/Packet.cpp b/src/Packet.cpp
@@ -143,7 +143,7 @@ uint8_t Packet::parse(uint8_t recChar, bool valid)
 
 		case find_payload_len: ////////////////////////////////////////
 		{
-			if (recChar <= MAX_PACKET_SIZE)
+			if ((recChar > 0) && (recChar <= MAX_PACKET_SIZE))
 			{
 				bytesToRec = recChar;
 				state      = find_payload;

Original file line number	Diff line number	Diff line change
`@@ -143,7 +143,7 @@ uint8_t Packet::parse(uint8_t recChar, bool valid)`
`143`	`143`
`144`	`144`	`case find_payload_len: ////////////////////////////////////////`
`145`	`145`	`{`
`146`		`- if (recChar <= MAX_PACKET_SIZE)`
	`146`	`+ if ((recChar > 0) && (recChar <= MAX_PACKET_SIZE))`
`147`	`147`	`{`
`148`	`148`	`bytesToRec = recChar;`
`149`	`149`	`state = find_payload;`