modbus_get_socket - get the current socket of the context

       The libmodbus documentation was written by Stéphane Raimbault <stephane.raimbault@gmail.com>

libmodbus v3.1.6                                   12/09/2019                               MODBUS_GET_SOCKET(3)

       The modbus_get_socket() function shall return the current socket or file descriptor of the libmodbus
       context.

       modbus_get_socket - get the current socket of the context

       The function returns the current socket or file descriptor of the context if successful. Otherwise it
       shall return -1 and set errno.

modbus_set_socket(3)

intmodbus_get_socket(modbus_t*ctx);