protected void checkNativeLink(SecurityManager sm, String os) {
if (os.equals("SunOS") || os.equals("Linux")) {
// link "saproc" - SA native library on SunOS and Linux?
sm.checkLink("saproc");
} else if (os.startsWith("Windows")) {
// link "sawindbg" - SA native library on Windows.
sm.checkLink("sawindbg");
} else {
throw new RuntimeException(os + " is not yet supported");
}
}
// security check to see whether the caller can perform attach
private void checkProcessAttach(int pid) {
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
String os = System.getProperty("os.name");
try {
// Whether the caller can perform link against SA native library?
checkNativeLink(sm, os);
if (os.equals("SunOS") || os.equals("Linux")) {
// Whether the caller can read /proc/<pid> file?
sm.checkRead("/proc/" + pid);
}
} catch (SecurityException se) {
throw new SecurityException("permission denied to attach to " + pid);
}
}
}