How can I access argc and argv in c++ from a library function

Question

I'm writing a library which is to be dynamically loaded in C++.

I'd like to read argc and argv (for debugging reasons) from within my code, however I do not have access to the main function. Is there any way to retrieve the command line (both Windows and Linux solution would be nice).

Thanks, Dan

Answer 1

On Linux the pseudo-file /proc/self/cmdline holds the command line for the process. Each argument is terminated with a 0 byte, and the final argument is followed by an additional 0 byte.

Answer 2

There is the GetCommandLine() function in the Win32 API. On other platforms, you would have to save argc/argv somewhere (external variable?).