// kext.iohid · IOKit.framework · IOHIDEventAppendEvent · CVE-2026-65385
// HID event tree append entry point probe
// C twin of the Swift POC: dlopens IOKit and dlsyms the event-tree entry points
// (create/append/serialize/type/vendor-defined) the unbounded append lives behind.
// Build: clang -O2 -o cve-2026-65385 CVE-2026-65385.c
// Run:   ./cve-2026-65385

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

int main(void) {
    const char *syms[] = {
        "IOHIDEventCreateCopy", "IOHIDEventAppendEvent", "IOHIDEventCreateData",
        "IOHIDEventGetType", "IOHIDEventCreateVendorDefined",
    };
    void *h = dlopen("/System/Library/Frameworks/IOKit.framework/IOKit", RTLD_NOW);
    if (!h) {
        printf("x IOKit cannot be dlopened\n");
        return 1;
    }
    printf("ok IOKit\n");
    for (size_t i = 0; i < sizeof syms / sizeof syms[0]; i++) {
        printf("  %s: %s\n", syms[i], dlsym(h, syms[i]) ? "resolved" : "missing");
    }
    printf("CVE-2026-65385 · IOHIDEvent append surface probed\n");
    return 0;
}