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intercept UnixFileSystem.checkAccess calls to handle embedded java home case

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This commit is contained in:
Joel Dice 2010-12-01 13:40:43 -07:00
parent 8f06ac402a
commit 6d1ad1e5ba
1 changed files with 60 additions and 0 deletions
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60
src/classpath-openjdk.cpp
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@ -634,6 +634,63 @@ getFileAttributes
}
}
int64_t JNICALL
checkFileAccess
(Thread* t, object method, uintptr_t* arguments)
{
const unsigned Read = 4;
MyClasspath* cp = static_cast<MyClasspath*>(t->m->classpath);
object file = reinterpret_cast<object>(arguments[1]);
unsigned mask = arguments[2];
object path = cast<object>(file, cp->filePathField);
RUNTIME_ARRAY(char, p, stringLength(t, path) + 1);
stringChars(t, path, RUNTIME_ARRAY_BODY(p));
replace('\\', '/', RUNTIME_ARRAY_BODY(p));
if (pathEqual(cp->zipLibrary, RUNTIME_ARRAY_BODY(p))
or pathEqual(cp->netLibrary, RUNTIME_ARRAY_BODY(p))
or pathEqual(cp->nioLibrary, RUNTIME_ARRAY_BODY(p)))
{
return mask == Read;
} else {
EmbeddedFile ef(cp, RUNTIME_ARRAY_BODY(p), stringLength(t, path));
if (ef.jar) {
if (ef.jarLength == 0) {
return mask == Read;
}
Finder* finder = getFinder(t, ef.jar, ef.jarLength);
if (finder) {
if (ef.pathLength == 0) {
return mask == Read;
}
unsigned length;
System::FileType type = finder->stat(ef.path, &length, true);
switch (type) {
case System::TypeDoesNotExist: return false;
case System::TypeUnknown:
case System::TypeFile:
case System::TypeDirectory: return mask == Read;
default: abort(t);
}
} else {
return 0;
}
} else {
object r = t->m->processor->invoke
(t, nativeInterceptOriginal
(t, methodRuntimeDataNative(t, getMethodRuntimeData(t, method))),
reinterpret_cast<object>(arguments[0]), file, mask);
return (r ? booleanValue(t, r) : false);
}
}
}
int64_t JNICALL
getLength
(Thread* t, object method, uintptr_t* arguments)
@ -1058,6 +1115,9 @@ interceptFileOperations(Thread* t)
intercept(t, fsClass, gbaMethodName, "(Ljava/io/File;)I",
voidPointer(getFileAttributes));
intercept(t, fsClass, "checkAccess", "(Ljava/io/File;I)Z",
voidPointer(checkFileAccess));
intercept(t, fsClass, "getLength", "(Ljava/io/File;)J",
voidPointer(getLength));
}