Hannu Nyman e849732017
modbus: update to 3.1.12 ...
Update modbus to version 3.1.12
https://github.com/stephane/libmodbus/releases/tag/v3.1.12
Fix FD_SET overflow when socket fd >= FD_SETSIZE.
Check dest pointer not null and nb in read functions.
NULL check for src and nb < 1 validation in write functions.
modbus_reply: don't compute address for FC 0x07/0x11.
Use O_NONBLOCK instead of deprecated O_NDELAY.
Explicit cast for Coverity CID 416366.
Document required buffer size of modbus_receive.
Document macros for error codes corresponding to Modbus exceptions.
Fix example of modbus_rtu_set_serial_mode.
Test filesystem provides symlink in autogen.sh.
Sync API signatures with the documentation.
Many documentation fixes and typo corrections.
Add coverage target and helper script.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi >
(cherry picked from commit b19cb351e2
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Hannu Nyman
e849732017