Execute code before and after main function.

easy-man-in-the-middle.c

#include <stdio.h>

void before_main() {
    printf("code before main here.\n");
}

void after_main() {
    printf("code after main here.\n");
}

int __main__(int argc, char **argv);

int main(int argc, char **argv) {
    before_main();
    __main__(argc, argv);
    after_main();
}

#define main(...) __main__(int argc, char **argv)

/*///////////////////////////////////
	
		Testing:
		
///////////////////////////////////*/

int main() {
    printf("Hello World\n");
    
    return 0;
}