C question

decob

ok, so i haven't used C in ages and as a result i'm a bit rusty.

Basically i am generating psuedo-rando hex value and i want to pass them into a program 'findkey.exe'.

Basically how can do i run the external programme ??

Static

I think popen's your man. Open a pipe and fprintf to it.
I think 8)

sphincter

The easiest way, and it's fairly platform neutral would be
to use system(), and pass the parameter on the command
line. Copy/convert your number to a string, and:

strcpy(command, "myotherprogramname ");
strcat(command, myRandomNumberString);
return = system(command);

You can access parameters passed to your program via
argc and argv, the implicit parameters of main(int argc, char **argv).

An improvement on this would be to use one of the exec()
variants - on a Unix platform, it'll cut down on the amount of
processes that have to get created.

Hope this helps.

Static

Of course, be careful if "myRandomNumberString" is dynamically created by your program, you don't want to go exec'ing malicious input if you're not the one creating it. Check it. Also use strncat/strncpy.

decob

Cheers, thanks Static/sphincter for the help.

Static, yeah the numbers are being generated dynamically.