Fix ttyname method which is unusable (SEGV crash), fixes #8

src/main/java/org/fusesource/jansi/internal/CLibrary.java

@@ -59,7 +59,7 @@ public class CLibrary {
     public static native int isatty(
             @JniArg int fd);
 
-    @JniMethod(conditional="defined(HAVE_TTYNAME)")
+    @JniMethod(conditional="FALSE")
     public static native String ttyname(
             @JniArg int filedes);
 

src/main/native-package/src/jansi_ttyname.c

@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (C) 2017, the original author(s).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+#include "jansi.h"
+#include "hawtjni.h"
+#include "jansi_structs.h"
+#include "jansi_stats.h"
+
+#define CLibrary_NATIVE(func) Java_org_fusesource_jansi_internal_CLibrary_##func
+
+#if defined(HAVE_TTYNAME)
+JNIEXPORT jstring JNICALL CLibrary_NATIVE(ttyname)
+	(JNIEnv *env, jclass that, jint arg0)
+{
+	jstring rc = 0;
+	char s[256] = { 0 };
+	int r = 0;
+	CLibrary_NATIVE_ENTER(env, that, CLibrary_ttyname_FUNC);
+	r = ttyname_r(arg0, s, 256);
+	if (!r) rc = (*env)->NewStringUTF(env,s);
+	CLibrary_NATIVE_EXIT(env, that, CLibrary_ttyname_FUNC);
+	return rc;
+}
+#endif