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diff --git a/Package.swift b/Package.swift
@@ -0,0 +1,31 @@
+// swift-tools-version:5.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "libetpan-swift",
+    products: [
+        // Products define the executables and libraries produced by a package, and make them visible to other packages.
+        .library(
+            name: "libetpan",
+            targets: ["libetpan"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+        .target(
+            name: "libetpan",
+            cSettings: [
+                .define("HAVE_CONFIG_H", to: "1"),
+                .define("HAVE_CFNETWORK", to: "1"),
+                .define("LIBETPAN_IOS_DISABLE_SSL", to: "1"),
+                .define("NO_MACROS", to: "1"),
+            ]
+        )
+    ]
+)
diff --git a/README.md b/README.md
@@ -0,0 +1,64 @@
+## LibEtPan
+
+The purpose of this mail library is to provide a portable, efficient framework for different kinds of mail access: IMAP, SMTP, POP and NNTP.
+
+It provides an API for C language.
+
+[![Build Status](https://travis-ci.org/dinhviethoa/libetpan.png?branch=master)](https://travis-ci.org/dinhviethoa/libetpan)
+[![Code Quality: Cpp](https://img.shields.io/lgtm/grade/cpp/g/dinhviethoa/libetpan.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/dinhviethoa/libetpan/context:cpp)
+[![Total Alerts](https://img.shields.io/lgtm/alerts/g/dinhviethoa/libetpan.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/dinhviethoa/libetpan/alerts)
+
+## Features
+
+- IMAP
+- SMTP
+- POP
+- NNTP
+- RFC822/MIME message builder
+- RFC822/MIME message parser
+- Maildir
+- mbox
+- MH
+
+## Build instructions
+
+### Unix
+
+You need to install autoconf, automake and libtool.
+They can be installed using [brew](http://brew.sh/).
+
+    $ ./autogen.sh
+    $ make
+
+You can use flag --with-poll for using poll() instead of select() for checking connection status
+
+### How to link with it
+
+    $ gcc -c -o sample.o sample.c `pkg-config libetpan --cflags`
+    $ gcc -o sample sample.o `pkg-config libetpan --libs`
+
+### Mac / iOS
+
+- Download Xcode
+- Open `build-mac/libetpan.xcodeproj`
+- Choose the correct target "static libetpan" for Mac or "libetpan ios" for iOS.
+- Build
+
+### Setup a Mac project
+
+- Add `libetpan.xcodeproj` as sub-project
+- Link with libetpan.a
+
+### Setup an iOS project
+
+- Add `libetpan.xcodeproj` as sub-project
+- Link with libetpan-ios.a
+- Set "Other Linker Flags": `-lsasl2`
+
+### Build on Windows
+
+- See README and Visual Studio Solution in build-windows folder
+
+## More information
+
+See http://etpan.org/libetpan.html for more information and examples.
diff --git a/Sources/libetpan/data-types/Makefile.am b/Sources/libetpan/data-types/Makefile.am
@@ -0,0 +1,55 @@
+# libEtPan! -- a mail stuff library
+#
+# Copyright (C) 2007 g10 Code GmbH
+# All rights reserved.
+#
+# 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 above 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. Neither the name of the libEtPan! project nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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 AUTHORS 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.
+
+include $(top_srcdir)/rules.mk
+
+etpaninclude_HEADERS = \
+	mmapstring.h mailstream.h mailstream_helper.h mail.h \
+        mailstream_low.h \
+        mailstream_socket.h mailstream_ssl.h mailstream_cfstream.h \
+        mailstream_compress.h \
+	mailstream_types.h \
+	carray.h clist.h chash.h \
+	charconv.h mailsem.h maillock.h
+
+AM_CPPFLAGS = -I$(top_builddir)/include
+
+noinst_LTLIBRARIES = libdata-types.la
+
+libdata_types_la_SOURCES = connect.h connect.c base64.h hmac-md5.h	\
+	md5global.h md5namespace.h md5.h md5.c mmapstring.c mailstream_helper.c	\
+	mailstream_low.c mailstream.c mailstream_socket.c		\
+	mailstream_ssl.c carray.c clist.c chash.c		        \
+	charconv.c maillock.c base64.c mail_cache_db_types.h		\
+	mail_cache_db.h mail_cache_db.c mail_cache_lmdb.c mailsem.c mailsasl.h		\
+	mailsasl.c mailstream_cancel_types.h mailstream_cancel.h	\
+	mailstream_cancel.c timeutils.h timeutils.c			\
+	mmapstring_private.h mailstream_ssl_private.h			\
+	mailstream_cfstream.c mailstream_cfstream.h \
+    mailstream_compress.c mailstream_compress.h
diff --git a/Sources/libetpan/data-types/base64.c b/Sources/libetpan/data-types/base64.c
@@ -0,0 +1,148 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - Juergen Graf
+ * All rights reserved.
+ *
+ * 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 above 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. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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 AUTHORS 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.
+ */
+
+/*
+ * $Id: base64.c,v 1.3 2005/06/01 12:21:57 smarinier Exp $
+ */
+
+#include "base64.h"
+
+#include <stdlib.h>
+
+#define OUTPUT_SIZE 513
+#define CHAR64(c)  (((c) < 0 || (c) > 127) ? -1 : index_64[(c)])
+
+static char index_64[128] = {
+    -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+    -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+    -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
+    52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1,-1,-1,-1,
+    -1, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
+    15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
+    -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
+    41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
+};
+
+static char basis_64[] =
+   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+LIBETPAN_EXPORT
+char * encode_base64(const char * in, int len)
+{
+  char * output, * tmp;
+  unsigned char oval;
+  int out_len;
+  const unsigned char * uin = (const unsigned char *) in;
+
+  out_len = ((len + 2) / 3 * 4) + 1;
+
+  if ((len > 0) && (in == NULL))
+    return NULL;
+
+  output = malloc(out_len);
+  if (!output)
+    return NULL;
+
+  tmp = output;
+  while (len >= 3) {
+    *tmp++ = basis_64[uin[0] >> 2];
+    *tmp++ = basis_64[((uin[0] << 4) & 0x30) | (uin[1] >> 4)];
+    *tmp++ = basis_64[((uin[1] << 2) & 0x3c) | (uin[2] >> 6)];
+    *tmp++ = basis_64[uin[2] & 0x3f];
+    uin += 3;
+    len -= 3;
+  }
+  if (len > 0) {
+    *tmp++ = basis_64[uin[0] >> 2];
+    oval = (uin[0] << 4) & 0x30;
+    if (len > 1) oval |= uin[1] >> 4;
+    *tmp++ = basis_64[oval];
+    *tmp++ = (len < 2) ? '=' : basis_64[(uin[1] << 2) & 0x3c];
+    *tmp++ = '=';
+  }
+
+  *tmp = '\0';
+
+  return output;
+}
+
+LIBETPAN_EXPORT
+char * decode_base64(const char * in, int len)
+{
+  char * output, * out;
+  int i, c1, c2, c3, c4, out_len;
+
+  out_len = 0;
+
+  output = malloc(OUTPUT_SIZE);
+  if (output == NULL)
+    return NULL;
+  out = output;
+
+  if (in[0] == '+' && in[1] == ' ')
+    in += 2;
+
+  for (i = 0; i < (len / 4); i++) {
+    c1 = in[0];
+    c2 = in[1];
+    c3 = in[2];
+    c4 = in[3];
+    if (CHAR64(c1) == -1 || CHAR64(c2) == -1 || 
+        (c3 != '=' && CHAR64(c3) == -1) || 
+        (c4 != '=' && CHAR64(c4) == -1)) {
+      free(out);
+      return NULL;
+    }
+
+    in += 4;
+    *output++ = (CHAR64(c1) << 2) | (CHAR64(c2) >> 4);
+    if (++out_len >= OUTPUT_SIZE)
+      return NULL;
+
+    if (c3 != '=') {
+      *output++ = ((CHAR64(c2) << 4) & 0xf0) | (CHAR64(c3) >> 2);
+      if (++out_len >= OUTPUT_SIZE)
+        return NULL;
+
+      if (c4 != '=') {
+        *output++ = ((CHAR64(c3) << 6) & 0xc0) | CHAR64(c4);  
+        if (++out_len >= OUTPUT_SIZE)
+          return NULL;
+      }
+    }
+  }
+
+  *output = 0;
+
+  return out;
+}
+
+
diff --git a/Sources/libetpan/data-types/base64.h b/Sources/libetpan/data-types/base64.h
@@ -0,0 +1,65 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - Juergen Graf
+ * All rights reserved.
+ *
+ * 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 above 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. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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 AUTHORS 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.
+ */
+
+/*
+ * $Id: base64.h,v 1.3 2005/06/01 12:21:57 smarinier Exp $
+ */
+
+#ifndef BASE64_H
+#define BASE64_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef LIBETPAN_CONFIG_H
+#	include "libetpan-config.h"
+#endif
+
+/**
+ * creates (malloc) a new base64 encoded string from a standard 8bit string 
+ * don't forget to free it when time comes ;)
+ */
+LIBETPAN_EXPORT
+char * encode_base64(const char * in, int len);
+
+/**
+ * creates (malloc) a new standard 8bit string from an base64 encoded string
+ * don't forget to free it when time comes ;)
+ */
+LIBETPAN_EXPORT
+char * decode_base64(const char * in, int len);
+
+#ifdef __cplusplus
+}
+#endif    
+
+#endif