Initial commit of BoringSSL for Android.
diff --git a/src/crypto/thread.c b/src/crypto/thread.c
new file mode 100644
index 0000000..f18bc13
--- /dev/null
+++ b/src/crypto/thread.c
@@ -0,0 +1,203 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/thread.h>
+
+#include <errno.h>
+#include <string.h>
+
+#if defined(OPENSSL_WINDOWS)
+#pragma warning(push, 3)
+#include <Windows.h>
+#pragma warning(pop)
+#endif
+
+#include <openssl/mem.h>
+#include <openssl/type_check.h>
+
+
+/* lock_names contains the names of all the locks defined in thread.h. */
+static const char *const lock_names[] = {
+    "<<ERROR>>",    "err",          "ex_data",       "x509",
+    "x509_info",    "x509_pkey",    "x509_crl",      "x509_req",
+    "dsa",          "rsa",          "evp_pkey",      "x509_store",
+    "ssl_ctx",      "ssl_cert",     "ssl_session",   "ssl_sess_cert",
+    "ssl",          "ssl_method",   "rand",          "rand2",
+    "debug_malloc", "BIO",          "gethostbyname", "getservbyname",
+    "readdir",      "RSA_blinding", "dh",            "debug_malloc2",
+    "dso",          "dynlock",      "engine",        "ui",
+    "ecdsa",        "ec",           "ecdh",          "bn",
+    "ec_pre_comp",  "store",        "comp",          "fips",
+    "fips2",        "obj",
+};
+
+OPENSSL_COMPILE_ASSERT(CRYPTO_NUM_LOCKS ==
+                           sizeof(lock_names) / sizeof(lock_names[0]),
+                       CRYPTO_NUM_LOCKS_inconsistent);
+
+static void (*locking_callback)(int mode, int lock_num, const char *file,
+                                int line) = 0;
+static int (*add_lock_callback)(int *pointer, int amount, int lock_num,
+                                const char *file, int line) = 0;
+static void (*threadid_callback)(CRYPTO_THREADID *) = 0;
+
+
+int CRYPTO_num_locks(void) { return CRYPTO_NUM_LOCKS; }
+
+void CRYPTO_set_locking_callback(void (*func)(int mode, int lock_num,
+                                              const char *file, int line)) {
+  locking_callback = func;
+}
+
+void CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int lock_num,
+                                              const char *file, int line)) {
+  add_lock_callback = func;
+}
+
+const char *CRYPTO_get_lock_name(int lock_num) {
+  if (lock_num >= 0 && lock_num < CRYPTO_NUM_LOCKS) {
+    return lock_names[lock_num];
+  } else {
+    return "ERROR";
+  }
+}
+
+int CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *)) {
+  if (threadid_callback) {
+    return 0;
+  }
+  threadid_callback = func;
+  return 1;
+}
+
+void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val) {
+  memset(id, 0, sizeof(*id));
+  id->val = val;
+}
+
+void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr) {
+  memset(id, 0, sizeof(*id));
+  id->ptr = ptr;
+}
+
+void (*CRYPTO_get_locking_callback(void))(int mode, int lock_num,
+                                          const char *file, int line) {
+  return locking_callback;
+}
+
+int (*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int lock_num,
+                                          const char *file, int line) {
+  return add_lock_callback;
+}
+
+void CRYPTO_lock(int mode, int lock_num, const char *file, int line) {
+  if (locking_callback != NULL) {
+    locking_callback(mode, lock_num, file, line);
+  }
+}
+
+int CRYPTO_add_lock(int *pointer, int amount, int lock_num, const char *file,
+                    int line) {
+  int ret = 0;
+
+  if (add_lock_callback != NULL) {
+    ret = add_lock_callback(pointer, amount, lock_num, file, line);
+  } else {
+    CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, lock_num, file, line);
+    ret = *pointer + amount;
+    *pointer = ret;
+    CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, lock_num, file, line);
+  }
+
+  return ret;
+}
+
+void CRYPTO_THREADID_current(CRYPTO_THREADID *id) {
+  if (threadid_callback) {
+    threadid_callback(id);
+    return;
+  }
+
+#if defined(OPENSSL_WINDOWS)
+  CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId());
+#else
+  /* For everything else, default to using the address of 'errno' */
+  CRYPTO_THREADID_set_pointer(id, (void *)&errno);
+#endif
+}
+
+int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b) {
+  return memcmp(a, b, sizeof(*a));
+}
+
+void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src) {
+  memcpy(dest, src, sizeof(*src));
+}
+
+uint32_t CRYPTO_THREADID_hash(const CRYPTO_THREADID *id) {
+  return OPENSSL_hash32(id, sizeof(CRYPTO_THREADID));
+}
+
+void CRYPTO_set_id_callback(unsigned long (*func)(void)) {}
+
+void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(
+    *dyn_create_function)(const char *file, int line)) {}
+
+void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(
+    int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)) {}
+
+void CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)(
+    struct CRYPTO_dynlock_value *l, const char *file, int line)) {}