Revert of [third-party] Netty fork of Tomcat Native

third_party/netty-tcnative/README.chromium

-Name: Tomcat Native Fork for Netty
-Short Name: netty-tcnative
-URL: https://github.com/netty/netty-tcnative
-SHA: 856865181ca38c07b7d2be619903ee98f6f77a23 netty-tcnative-1.1.33.zip
-Version: 1.1.33
-Date: October 13, 2015
-Revision: 2aa47be27783ec31086ca9881402f845543de4e6
-License: Apache 2.0
-License File: NOT_SHIPPED
-Security Critical: no
-The library is not security critical because it is used for tests only.
-Do not link it into production code.
-
-Description:
-    netty-tcnative is a fork of Tomcat Native. It includes a set of changes contributed
-    by Twitter, Inc, such as:
-
-    Simplified distribution and linkage of native library
-    Complete mavenization of the project
-    Improved OpenSSL support
-
-Local Modifications:
-
-diff -ruN ./original/src/main/c/ssl.c ./src/third_party/netty-tcnative/src/c/ssl.c
---- ./original/src/main/c/ssl.c 2015-10-13 08:36:59.000000000 -0400
-+++ ./src/third_party/netty-tcnative/src/c/ssl.c        2016-01-04 10:18:31.729765992 -0500
-@@ -1821,7 +1821,7 @@
-     verify = SSL_VERIFY_NONE;
-
-     UNREFERENCED(o);
--    TCN_ASSERT(ctx != 0);
-+    TCN_ASSERT(c->ctx != 0);
-     c->verify_mode = level;
-
-     if (c->verify_mode == SSL_CVERIFY_UNSET)
-
-diff --git a/c/ssl.c b/c/ssl.c
-index 89e6cad..97c7982 100644
---- a/c/ssl.c
-+++ b/c/ssl.c
-@@ -231,26 +231,38 @@ static const jint supported_ssl_opts = 0
-
- static int ssl_tmp_key_init_rsa(int bits, int idx)
- {
--#if (OPENSSL_VERSION_NUMBER < 0x10100000L) || defined(OPENSSL_USE_DEPRECATED)
--    if (!(SSL_temp_keys[idx] =
--          RSA_generate_key(bits, RSA_F4, NULL, NULL))) {
-+#if (OPENSSL_VERSION_NUMBER >= 0x10100000L)
-+    return 0;
-+#else
-+
- #ifdef OPENSSL_FIPS
--        /**
--         * With FIPS mode short RSA keys cannot be
--         * generated.
--         */
--        if (bits < 1024)
--            return 0;
--        else
--#endif
--        return 1;
--    }
--    else {
-+    /**
-+     * Short RSA keys cannot be generated in FIPS mode.
-+     */
-+    if (bits < 1024)
-         return 0;
--    }
--#else
--    return 0;
- #endif
-+
-+    BIGNUM *e = BN_new();
-+    RSA *rsa = RSA_new();
-+    int ret = 1;
-+
-+    if (e == NULL ||
-+        rsa == NULL ||
-+        !BN_set_word(e, RSA_F4) ||
-+        RSA_generate_key_ex(rsa, bits, e, NULL) != 1) {
-+        goto err;
-+    }
-+
-+    SSL_temp_keys[idx] = rsa;
-+    rsa = NULL;
-+    ret = 0;
-+
-+err:
-+    BN_free(e);
-+    RSA_free(rsa);
-+    return ret;
-+#endif  /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
- }
-
- static int ssl_tmp_key_init_dh(int bits, int idx)
-@@ -610,45 +622,6 @@ int SSL_rand_seed(const char *file)
-     return RAND_status();
- }
-
--static int ssl_rand_make(const char *file, int len, int base64)
--{
--    int r;
--    int num = len;
--    BIO *out = NULL;
--
--    out = BIO_new(BIO_s_file());
--    if (out == NULL)
--        return 0;
--    if ((r = BIO_write_filename(out, (char *)file)) < 0) {
--        BIO_free_all(out);
--        return 0;
--    }
--    if (base64) {
--        BIO *b64 = BIO_new(BIO_f_base64());
--        if (b64 == NULL) {
--            BIO_free_all(out);
--            return 0;
--        }
--        out = BIO_push(b64, out);
--    }
--    while (num > 0) {
--        unsigned char buf[4096];
--        int len = num;
--        if (len > sizeof(buf))
--            len = sizeof(buf);
--        r = RAND_bytes(buf, len);
--        if (r <= 0) {
--            BIO_free_all(out);
--            return 0;
--        }
--        BIO_write(out, buf, len);
--        num -= len;
--    }
--    r = BIO_flush(out);
--    BIO_free_all(out);
--    return r > 0 ? 1 : 0;
--}
--
- TCN_IMPLEMENT_CALL(jint, SSL, initialize)(TCN_STDARGS, jstring engine)
- {
-     int r = 0;
-@@ -785,17 +758,6 @@ TCN_IMPLEMENT_CALL(jboolean, SSL, randSave)(TCN_STDARGS, jstring file)
-     return r ? JNI_TRUE : JNI_FALSE;
- }
-
--TCN_IMPLEMENT_CALL(jboolean, SSL, randMake)(TCN_STDARGS, jstring file,
--                                            jint length, jboolean base64)
--{
--    TCN_ALLOC_CSTRING(file);
--    int r;
--    UNREFERENCED(o);
--    r = ssl_rand_make(J2S(file), length, base64);
--    TCN_FREE_CSTRING(file);
--    return r ? JNI_TRUE : JNI_FALSE;
--}
--
- TCN_IMPLEMENT_CALL(void, SSL, randSet)(TCN_STDARGS, jstring file)
- {
-     TCN_ALLOC_CSTRING(file);
-
-
-