External bugs added

tests/ext_bugs/memleak.c

@@ -0,0 +1,36 @@
+#include <unistd.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <time.h>
+
+volatile int threads_keepalive = 1;
+
+void* thread_do(void *arg){
+	while(threads_keepalive)
+		sleep(1);
+	pthread_exit(NULL);
+	return;
+}
+
+int main(void){
+
+	/* Make threads */
+	pthread_t* threads;
+	threads = malloc(2 * sizeof(pthread_t));
+	pthread_create(&threads[0], NULL, &thread_do, NULL);
+	pthread_create(&threads[1], NULL, &thread_do, NULL);
+	pthread_detach(threads[0]);
+	pthread_detach(threads[1]);
+	sleep(1); // MAKING SURE THREADS HAVE INITIALIZED
+
+	/* Kill threads */
+	threads_keepalive = 0;
+	sleep(3); // MAKING SURE THREADS HAVE UNBLOCKED
+	pthread_join(threads[0], NULL);
+	pthread_join(threads[1], NULL);
+	free(threads);
+
+	return 0;
+}