Upgrade unbound library

These files were pulled from the 1.6.3 release tarball.

This new version builds against OpenSSL version 1.1 which will be
the default in the new Debian Stable which is due to be released
RealSoonNow (tm).

1 files changed, 54 insertions, 37 deletions

diff --git a/external/unbound/util/locks.h b/external/unbound/util/locks.h
index 3776912aa..d86ee4923 100644
--- a/external/unbound/util/locks.h
+++ b/external/unbound/util/locks.h
@@ -95,7 +95,7 @@
 /******************* PTHREAD ************************/
 
 /** use pthread mutex for basic lock */
-typedef pthread_mutex_t lock_basic_t;
+typedef pthread_mutex_t lock_basic_type;
 /** small front for pthread init func, NULL is default attrs. */
 #define lock_basic_init(lock) LOCKRET(pthread_mutex_init(lock, NULL))
 #define lock_basic_destroy(lock) LOCKRET(pthread_mutex_destroy(lock))
@@ -104,7 +104,7 @@ typedef pthread_mutex_t lock_basic_t;
 
 #ifndef HAVE_PTHREAD_RWLOCK_T
 /** in case rwlocks are not supported, use a mutex. */
-typedef pthread_mutex_t lock_rw_t;
+typedef pthread_mutex_t lock_rw_type;
 #define lock_rw_init(lock) LOCKRET(pthread_mutex_init(lock, NULL))
 #define lock_rw_destroy(lock) LOCKRET(pthread_mutex_destroy(lock))
 #define lock_rw_rdlock(lock) LOCKRET(pthread_mutex_lock(lock))
@@ -112,7 +112,7 @@ typedef pthread_mutex_t lock_rw_t;
 #define lock_rw_unlock(lock) LOCKRET(pthread_mutex_unlock(lock))
 #else /* HAVE_PTHREAD_RWLOCK_T */
 /** we use the pthread rwlock */
-typedef pthread_rwlock_t lock_rw_t;
+typedef pthread_rwlock_t lock_rw_type;
 /** small front for pthread init func, NULL is default attrs. */
 #define lock_rw_init(lock) LOCKRET(pthread_rwlock_init(lock, NULL))
 #define lock_rw_destroy(lock) LOCKRET(pthread_rwlock_destroy(lock))
@@ -123,7 +123,7 @@ typedef pthread_rwlock_t lock_rw_t;
 
 #ifndef HAVE_PTHREAD_SPINLOCK_T
 /** in case spinlocks are not supported, use a mutex. */
-typedef pthread_mutex_t lock_quick_t;
+typedef pthread_mutex_t lock_quick_type;
 /** small front for pthread init func, NULL is default attrs. */
 #define lock_quick_init(lock) LOCKRET(pthread_mutex_init(lock, NULL))
 #define lock_quick_destroy(lock) LOCKRET(pthread_mutex_destroy(lock))
@@ -132,7 +132,7 @@ typedef pthread_mutex_t lock_quick_t;
 
 #else /* HAVE_PTHREAD_SPINLOCK_T */
 /** use pthread spinlock for the quick lock */
-typedef pthread_spinlock_t lock_quick_t;
+typedef pthread_spinlock_t lock_quick_type;
 /** 
  * allocate process private since this is available whether
  * Thread Process-Shared Synchronization is supported or not.
@@ -148,14 +148,31 @@ typedef pthread_spinlock_t lock_quick_t;
 #endif /* HAVE SPINLOCK */
 
 /** Thread creation */
-typedef pthread_t ub_thread_t;
-/** Pass where to store tread_t in thr. Use default NULL attributes. */
-#define ub_thread_create(thr, func, arg) LOCKRET(pthread_create(thr, NULL, func, arg))
+typedef pthread_t ub_thread_type;
+/** On alpine linux default thread stack size is 80 Kb. See
+http://wiki.musl-libc.org/wiki/Functional_differences_from_glibc#Thread_stack_size
+This is not enough and cause segfault. Other linux distros have 2 Mb at least.
+Wrapper for set up thread stack size */
+#define PTHREADSTACKSIZE 2*1024*1024
+#define PTHREADCREATE(thr, stackrequired, func, arg) do {\
+	pthread_attr_t attr; \
+	size_t stacksize; \
+	LOCKRET(pthread_attr_init(&attr)); \
+	LOCKRET(pthread_attr_getstacksize(&attr, &stacksize)); \
+	if (stacksize < stackrequired) { \
+		LOCKRET(pthread_attr_setstacksize(&attr, stackrequired)); \
+		LOCKRET(pthread_create(thr, &attr, func, arg)); \
+		LOCKRET(pthread_attr_getstacksize(&attr, &stacksize)); \
+		verbose(VERB_ALGO, "Thread stack size set to %u", (unsigned)stacksize); \
+	} else {LOCKRET(pthread_create(thr, NULL, func, arg));} \
+	} while(0)
+/** Use wrapper for set thread stack size on attributes. */
+#define ub_thread_create(thr, func, arg) PTHREADCREATE(thr, PTHREADSTACKSIZE, func, arg)
 /** get self id. */
 #define ub_thread_self() pthread_self()
 /** wait for another thread to terminate */
 #define ub_thread_join(thread) LOCKRET(pthread_join(thread, NULL))
-typedef pthread_key_t ub_thread_key_t;
+typedef pthread_key_t ub_thread_key_type;
 #define ub_thread_key_create(key, f) LOCKRET(pthread_key_create(key, f))
 #define ub_thread_key_set(key, v) LOCKRET(pthread_setspecific(key, v))
 #define ub_thread_key_get(key) pthread_getspecific(key)
@@ -167,7 +184,7 @@ typedef pthread_key_t ub_thread_key_t;
 #include <synch.h>
 #include <thread.h>
 
-typedef rwlock_t lock_rw_t;
+typedef rwlock_t lock_rw_type;
 #define lock_rw_init(lock) LOCKRET(rwlock_init(lock, USYNC_THREAD, NULL))
 #define lock_rw_destroy(lock) LOCKRET(rwlock_destroy(lock))
 #define lock_rw_rdlock(lock) LOCKRET(rw_rdlock(lock))
@@ -175,28 +192,28 @@ typedef rwlock_t lock_rw_t;
 #define lock_rw_unlock(lock) LOCKRET(rw_unlock(lock))
 
 /** use basic mutex */
-typedef mutex_t lock_basic_t;
+typedef mutex_t lock_basic_type;
 #define lock_basic_init(lock) LOCKRET(mutex_init(lock, USYNC_THREAD, NULL))
 #define lock_basic_destroy(lock) LOCKRET(mutex_destroy(lock))
 #define lock_basic_lock(lock) LOCKRET(mutex_lock(lock))
 #define lock_basic_unlock(lock) LOCKRET(mutex_unlock(lock))
 
 /** No spinlocks in solaris threads API. Use a mutex. */
-typedef mutex_t lock_quick_t;
+typedef mutex_t lock_quick_type;
 #define lock_quick_init(lock) LOCKRET(mutex_init(lock, USYNC_THREAD, NULL))
 #define lock_quick_destroy(lock) LOCKRET(mutex_destroy(lock))
 #define lock_quick_lock(lock) LOCKRET(mutex_lock(lock))
 #define lock_quick_unlock(lock) LOCKRET(mutex_unlock(lock))
 
 /** Thread creation, create a default thread. */
-typedef thread_t ub_thread_t;
+typedef thread_t ub_thread_type;
 #define ub_thread_create(thr, func, arg) LOCKRET(thr_create(NULL, NULL, func, arg, NULL, thr))
 #define ub_thread_self() thr_self()
 #define ub_thread_join(thread) LOCKRET(thr_join(thread, NULL, NULL))
-typedef thread_key_t ub_thread_key_t;
+typedef thread_key_t ub_thread_key_type;
 #define ub_thread_key_create(key, f) LOCKRET(thr_keycreate(key, f))
 #define ub_thread_key_set(key, v) LOCKRET(thr_setspecific(key, v))
-void* ub_thread_key_get(ub_thread_key_t key);
+void* ub_thread_key_get(ub_thread_key_type key);
 
 
 #else /* we do not HAVE_SOLARIS_THREADS and no PTHREADS */
@@ -205,7 +222,7 @@ void* ub_thread_key_get(ub_thread_key_t key);
 #include <windows.h>
 
 /* Use a mutex */
-typedef LONG lock_rw_t;
+typedef LONG lock_rw_type;
 #define lock_rw_init(lock) lock_basic_init(lock)
 #define lock_rw_destroy(lock) lock_basic_destroy(lock)
 #define lock_rw_rdlock(lock) lock_basic_lock(lock)
@@ -213,35 +230,35 @@ typedef LONG lock_rw_t;
 #define lock_rw_unlock(lock) lock_basic_unlock(lock)
 
 /** the basic lock is a mutex, implemented opaquely, for error handling. */
-typedef LONG lock_basic_t;
-void lock_basic_init(lock_basic_t* lock);
-void lock_basic_destroy(lock_basic_t* lock);
-void lock_basic_lock(lock_basic_t* lock);
-void lock_basic_unlock(lock_basic_t* lock);
+typedef LONG lock_basic_type;
+void lock_basic_init(lock_basic_type* lock);
+void lock_basic_destroy(lock_basic_type* lock);
+void lock_basic_lock(lock_basic_type* lock);
+void lock_basic_unlock(lock_basic_type* lock);
 
 /** on windows no spinlock, use mutex too. */
-typedef LONG lock_quick_t;
+typedef LONG lock_quick_type;
 #define lock_quick_init(lock) lock_basic_init(lock)
 #define lock_quick_destroy(lock) lock_basic_destroy(lock)
 #define lock_quick_lock(lock) lock_basic_lock(lock)
 #define lock_quick_unlock(lock) lock_basic_unlock(lock)
 
 /** Thread creation, create a default thread. */
-typedef HANDLE ub_thread_t;
-void ub_thread_create(ub_thread_t* thr, void* (*func)(void*), void* arg);
-ub_thread_t ub_thread_self(void);
-void ub_thread_join(ub_thread_t thr);
-typedef DWORD ub_thread_key_t;
-void ub_thread_key_create(ub_thread_key_t* key, void* f);
-void ub_thread_key_set(ub_thread_key_t key, void* v);
-void* ub_thread_key_get(ub_thread_key_t key);
+typedef HANDLE ub_thread_type;
+void ub_thread_create(ub_thread_type* thr, void* (*func)(void*), void* arg);
+ub_thread_type ub_thread_self(void);
+void ub_thread_join(ub_thread_type thr);
+typedef DWORD ub_thread_key_type;
+void ub_thread_key_create(ub_thread_key_type* key, void* f);
+void ub_thread_key_set(ub_thread_key_type key, void* v);
+void* ub_thread_key_get(ub_thread_key_type key);
 
 #else /* we do not HAVE_SOLARIS_THREADS, PTHREADS or WINDOWS_THREADS */
 
 /******************* NO THREADS ************************/
 #define THREADS_DISABLED 1
 /** In case there is no thread support, define locks to do nothing */
-typedef int lock_rw_t;
+typedef int lock_rw_type;
 #define lock_rw_init(lock) /* nop */
 #define lock_rw_destroy(lock) /* nop */
 #define lock_rw_rdlock(lock) /* nop */
@@ -249,30 +266,30 @@ typedef int lock_rw_t;
 #define lock_rw_unlock(lock) /* nop */
 
 /** define locks to do nothing */
-typedef int lock_basic_t;
+typedef int lock_basic_type;
 #define lock_basic_init(lock) /* nop */
 #define lock_basic_destroy(lock) /* nop */
 #define lock_basic_lock(lock) /* nop */
 #define lock_basic_unlock(lock) /* nop */
 
 /** define locks to do nothing */
-typedef int lock_quick_t;
+typedef int lock_quick_type;
 #define lock_quick_init(lock) /* nop */
 #define lock_quick_destroy(lock) /* nop */
 #define lock_quick_lock(lock) /* nop */
 #define lock_quick_unlock(lock) /* nop */
 
 /** Thread creation, threads do not exist */
-typedef pid_t ub_thread_t;
+typedef pid_t ub_thread_type;
 /** ub_thread_create is simulated with fork (extremely heavy threads,
   * with no shared memory). */
 #define ub_thread_create(thr, func, arg) \
 	ub_thr_fork_create(thr, func, arg)
 #define ub_thread_self() getpid()
 #define ub_thread_join(thread) ub_thr_fork_wait(thread)
-void ub_thr_fork_wait(ub_thread_t thread);
-void ub_thr_fork_create(ub_thread_t* thr, void* (*func)(void*), void* arg);
-typedef void* ub_thread_key_t;
+void ub_thr_fork_wait(ub_thread_type thread);
+void ub_thr_fork_create(ub_thread_type* thr, void* (*func)(void*), void* arg);
+typedef void* ub_thread_key_type;
 #define ub_thread_key_create(key, f) (*(key)) = NULL
 #define ub_thread_key_set(key, v) (key) = (v)
 #define ub_thread_key_get(key) (key)