#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/mman.h>

// Define the shellcode
char code[] = "\x31\xc0\x99\xb2\x0a\xff\xc0\x89\xc7\x48\x8d\x35\x12\x00\x00\x00\x0f\x05\xb2\x2a\x31\xc0\xff\xc0\xf6\xe2\x89\xc7\x31\xc0\xb0\x3c\x0f\x05\x2e\x2e\x57\x4f\x4f\x44\x59\x2e\x2e\x0a";

// Declare a function pointer with no arguments and no return value
typedef void (*ShellcodeFunc)();

int main() {
    // Create a function pointer of the appropriate type and point it to the shellcode
    ShellcodeFunc func = (ShellcodeFunc)code;

    // Make the memory containing the shellcode executable
    // Using a reasonable default page size
    size_t pagesize = 4096; // 4KB, a common page size
    uintptr_t page_start = (uintptr_t)code & ~(pagesize - 1);
    mprotect((void *)page_start, pagesize, PROT_READ | PROT_EXEC);

    // Call the shellcode
    func();

    return 0;
}