unknown-setuid-test.c

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// SPDX-License-Identifier: GPL-3.0-or-later
/*
 * Harmless VM-only RootGuard probe. It never starts a shell or executes a
 * command. When installed root:root mode 4755 it only prints real/effective
 * UID and exits. RootGuard should audit or block its privilege transition.
 */
#include <stdio.h>
#include <unistd.h>
 
int main(void)
{
    printf("RootGuard VM probe: uid=%ld euid=%ld\n",
           (long)getuid(), (long)geteuid());
    return 0;
}