#include <stdio.h>
#include <string.h>
#include <stdlib.h>

void unused_function() {
	printf("you did it! ROP achieved, we never call this function\n");
	printf("calling /bin/sh...\n");
	system("/bin/sh");
}

void vuln(char* input) {
	char buffer[32];
	// copy input but dont check size, purposefully vulnerable so we can ROP our way through stuff
	strcpy(buffer, input);
	printf("Your argument was: %s\n", buffer);
}

int main(int argc, char** argv) {
	if (argc != 2) {
		printf("Usage: %s <string>\n", argv[0]);
		return 1;
	}
	vuln(argv[1]);
	return 0;
}