* Introduce mbus_data_bcd_decode_hex
The convert function mbus_data_bcd_decode (BCD to decimal) suffers from
information loss in case of hexacimal digits. So introduce a new function
mbus_data_bcd_decode_hex (BCD to hexadecimal), which isn't affected and
use this for default XML output. But keep mbus_data_bcd_decode for
normalized output.
code. The formula can be found at http://www.m-bus.com/files/w4b21021.pdf,
chapter 3.3 at page 6.
This obsoletes the static defines, so remove them.
Signed-off-by: Michael Heimpold <mhei@heimpold.de>
- remove global event function pointer
- add event function pointer to handle structure
- add handle parameter to register functions
- move all register functions to mbus-protocol-aux.c
- add length defines for variable data header and fixed data
- add size check for fixed data
- avoid problems with memory alignment / padding in mbus structures
(improve portability)
- abort parsing if there are too many DIFE or VIFEs
- check for premature end of variable data
- check size of variable length VIF
- replace non standard u_char with unsigned char (ANSI)
- advice splint to ignore variadic macros
- move declarations from the middle to top of functions (C90)
- replace local library includes <> to ""
- changed local library file includes from <> to ""
- get rid of 'if (is_serial)' conditions
- mbus_context_serial() and mbus_context_tcp() allocates memory and initialize context specific function pointers
- simply mbus_connect() called instead of mbus_connect_tcp() or mbus_connect_serial()
- context specific data can still be accessed via (void* auxdata) pointer
- strdup(3) to copy host IP into TCP context struct
