1 files changed, 66 insertions, 0 deletions
diff --git a/src/cz/crcs/ectester/standalone/libs/jni/c_utils.c b/src/cz/crcs/ectester/standalone/libs/jni/c_utils.c
new file mode 100644
index 0000000..336f4a1
--- /dev/null
+++ b/src/cz/crcs/ectester/standalone/libs/jni/c_utils.c
@@ -0,0 +1,66 @@
+#include "c_utils.h"
+#include <string.h>
+
+jclass ec_parameter_spec_class;
+jclass ecgen_parameter_spec_class;
+jclass pubkey_class;
+jclass privkey_class;
+jclass keypair_class;
+jclass elliptic_curve_class;
+jclass fp_field_class;
+jclass f2m_field_class;
+jclass point_class;
+jclass biginteger_class;
+jclass illegal_state_exception_class;
+
+void init_classes(JNIEnv *env, const char* lib_name) {
+    jclass local_ec_parameter_spec_class = (*env)->FindClass(env, "java/security/spec/ECParameterSpec");
+    ec_parameter_spec_class = (*env)->NewGlobalRef(env, local_ec_parameter_spec_class);
+
+    jclass local_ecgen_parameter_spec_class = (*env)->FindClass(env, "java/security/spec/ECGenParameterSpec");
+    ecgen_parameter_spec_class = (*env)->NewGlobalRef(env, local_ecgen_parameter_spec_class);
+
+    const char *pubkey_base = "cz/crcs/ectester/standalone/libs/jni/NativeECPublicKey$";
+    char pubkey_class_name[strlen(pubkey_base) + strlen(lib_name) + 1];
+    pubkey_class_name[0] = 0;
+    strcat(pubkey_class_name, pubkey_base);
+    strcat(pubkey_class_name, lib_name);
+
+    jclass local_pubkey_class = (*env)->FindClass(env, pubkey_class_name);
+    pubkey_class = (*env)->NewGlobalRef(env, local_pubkey_class);
+
+    const char *privkey_base = "cz/crcs/ectester/standalone/libs/jni/NativeECPrivateKey$";
+    char privkey_class_name[strlen(privkey_base) + strlen(lib_name) + 1];
+    privkey_class_name[0] = 0;
+    strcat(privkey_class_name, privkey_base);
+    strcat(privkey_class_name, lib_name);
+
+    jclass local_privkey_class = (*env)->FindClass(env, privkey_class_name);
+    privkey_class = (*env)->NewGlobalRef(env, local_privkey_class);
+
+    jclass local_keypair_class = (*env)->FindClass(env, "java/security/KeyPair");
+    keypair_class = (*env)->NewGlobalRef(env, local_keypair_class);
+
+    jclass local_elliptic_curve_class = (*env)->FindClass(env, "java/security/spec/EllipticCurve");
+    elliptic_curve_class = (*env)->NewGlobalRef(env, local_elliptic_curve_class);
+
+    jclass local_fp_field_class = (*env)->FindClass(env, "java/security/spec/ECFieldFp");
+    fp_field_class = (*env)->NewGlobalRef(env, local_fp_field_class);
+
+    jclass local_f2m_field_class = (*env)->FindClass(env, "java/security/spec/ECFieldF2m");
+    f2m_field_class = (*env)->NewGlobalRef(env, local_f2m_field_class);
+
+    jclass local_biginteger_class = (*env)->FindClass(env, "java/math/BigInteger");
+    biginteger_class = (*env)->NewGlobalRef(env, local_biginteger_class);
+
+    jclass local_point_class = (*env)->FindClass(env, "java/security/spec/ECPoint");
+    point_class = (*env)->NewGlobalRef(env, local_point_class);
+
+    jclass local_illegal_state_exception_class = (*env)->FindClass(env, "java/lang/IllegalStateException");
+    illegal_state_exception_class = (*env)->NewGlobalRef(env, local_illegal_state_exception_class);
+}
+
+void throw_new(JNIEnv *env, const char *class, const char *message) {
+    jclass clazz = (*env)->FindClass(env, class);
+    (*env)->ThrowNew(env, clazz, message);
+}