Removed exit() function calls from openXXXClientSocket() and openXXXListnerSocket() functions
Removed exit() function calls from openXXXClientSocket() and openXXXListnerSocket() functions

cROS is a library, it should not call exit() function and abort the main program execution. It is the main program that should decide when to exit, since there may be pending tasks (not related to ROS) to be fulfilled by the program before exiting

it-robotics/cros,it-robotics/cros,it-robotics/cros