fix parsing code for Itron ACE300 Typ 260. Added dump_file option to …

…write communication to D0 device into a file

etc/vzlogger.conf

@@ -61,6 +61,7 @@
             "skip": false,                  // if enabled, errors when opening meter will lead to meter being ignored
             "protocol": "d0",               // see 'vzlogger -h' for list of available protocols
             "device": "/dev/ttyUSB0",
+            "dump_file": "/var/log/dumpD0.txt", // optional, if set logs all received/transmitted data to this file
             "parity": "7E1",                // oder 8N1
             "baudrate": 9600,               // oder 300
 //          "pullseq": "2F3F210D0A",        // Pullsequenz in 'hex'

include/protocols/MeterD0.hpp

@@ -50,6 +50,7 @@ class MeterD0 : public vz::protocol::Protocol {
 private:
 	std::string _host;
 	std::string _device;
+	std::string _dump_file;
 	int _baudrate;
 	int _baudrate_read;
 
@@ -60,6 +61,7 @@ class MeterD0 : public vz::protocol::Protocol {
 
 
 	int _fd; /* file descriptor of port */
+	FILE *_dump_fd;
 	struct termios _oldtio; /* required to reset port */
 
 	/**
@@ -71,6 +73,13 @@ class MeterD0 : public vz::protocol::Protocol {
 	 */
 	int _openSocket(const char *node, const char *service);
 	int _openDevice(struct termios *old_tio, speed_t baudrate);
+
+	enum DUMP_MODE {NONE, CTRL, DUMP_IN, DUMP_OUT};
+	DUMP_MODE _old_mode;
+	int _dump_pos;
+	void dump_file(DUMP_MODE mode, const char* str);
+	void dump_file(DUMP_MODE mode, const char* buf, size_t len);
+	void dump_file(const char &c){ dump_file(DUMP_IN, &c, 1);};
 };
 
 #endif /* _D0_H_ */