abo4.c

/* abo4.c                                                    *
 * specially crafted to feed your brain by gera@core-sdi.com */

/* After this one, the next is just an Eureka! away          */

extern system,puts; 
void (*fn)(char*)=(void(*)(char*))&system;

int main(int argv,char **argc) {
	char *pbuf=malloc(strlen(argc[2])+1);
	char buf[256];

	fn=(void(*)(char*))&puts;
	strcpy(buf,argc[1]);
	strcpy(pbuf,argc[2]);
	fn(argc[3]);
	while(1);
}