diff --git a/lib/curl_strerror.c b/lib/curl_strerror.c
new file mode 100644
index 0000000000000000000000000000000000000000..677c1a685ba8c46628613097c0ffa3f5892609db
--- /dev/null
+++ b/lib/curl_strerror.c
@@ -0,0 +1,296 @@
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include <curl/curl.h>
+
+const char *
+curl_easy_strerror(CURLcode error)
+{
+ switch (error) {
+ case CURLE_OK:
+ return "no error";
+
+ case CURLE_UNSUPPORTED_PROTOCOL:
+ return "unsupported protocol";
+
+ case CURLE_FAILED_INIT:
+ return "failed init";
+
+ case CURLE_URL_MALFORMAT:
+ return "url malformat";
+
+ case CURLE_URL_MALFORMAT_USER:
+ return "url malformat user";
+
+ case CURLE_COULDNT_RESOLVE_PROXY:
+ return "couldnt resolve proxy";
+
+ case CURLE_COULDNT_RESOLVE_HOST:
+ return "couldnt resolve host";
+
+ case CURLE_COULDNT_CONNECT:
+ return "couldn't connect";
+
+ case CURLE_FTP_WEIRD_SERVER_REPLY:
+ return "ftp weird server reply";
+
+ case CURLE_FTP_ACCESS_DENIED:
+ return "ftp access denied";
+
+ case CURLE_FTP_USER_PASSWORD_INCORRECT:
+ return "ftp user password incorrect";
+
+ case CURLE_FTP_WEIRD_PASS_REPLY:
+ return "ftp weird pass reply";
+
+ case CURLE_FTP_WEIRD_USER_REPLY:
+ return "ftp weird user reply";
+
+ case CURLE_FTP_WEIRD_PASV_REPLY:
+ return "ftp weird pasv reply";
+
+ case CURLE_FTP_WEIRD_227_FORMAT:
+ return "ftp weird 227 format";
+
+ case CURLE_FTP_CANT_GET_HOST:
+ return "ftp cant get host";
+
+ case CURLE_FTP_CANT_RECONNECT:
+ return "ftp can't reconnect";
+
+ case CURLE_FTP_COULDNT_SET_BINARY:
+ return "ftp couldn't set binary";
+
+ case CURLE_PARTIAL_FILE:
+ return "partial file";
+
+ case CURLE_FTP_COULDNT_RETR_FILE:
+ return "ftp couldn't retr file";
+
+ case CURLE_FTP_WRITE_ERROR:
+ return "ftp write error";
+
+ case CURLE_FTP_QUOTE_ERROR:
+ return "ftp quote error";
+
+ case CURLE_HTTP_NOT_FOUND:
+ return "http not found";
+
+ case CURLE_WRITE_ERROR:
+ return "write error";
+
+ case CURLE_MALFORMAT_USER:
+ return "user name is illegally specified";
+
+ case CURLE_FTP_COULDNT_STOR_FILE:
+ return "failed FTP upload";
+
+ case CURLE_READ_ERROR:
+ return "could open/read from file";
+
+ case CURLE_OUT_OF_MEMORY:
+ return "out of memory";
+
+ case CURLE_OPERATION_TIMEOUTED:
+ return "the timeout time was reached";
+
+ case CURLE_FTP_COULDNT_SET_ASCII:
+ return "TYPE A failed";
+
+ case CURLE_FTP_PORT_FAILED:
+ return "FTP PORT operation failed";
+
+ case CURLE_FTP_COULDNT_USE_REST:
+ return "the REST command failed";
+
+ case CURLE_FTP_COULDNT_GET_SIZE:
+ return "the SIZE command failed";
+
+ case CURLE_HTTP_RANGE_ERROR:
+ return "RANGE \"command\" didn't work";
+
+ case CURLE_HTTP_POST_ERROR:
+ return "http post error";
+
+ case CURLE_SSL_CONNECT_ERROR:
+ return "wrong when connecting with SSL";
+
+ case CURLE_FTP_BAD_DOWNLOAD_RESUME:
+ return "couldn't resume download";
+
+ case CURLE_FILE_COULDNT_READ_FILE:
+ return "file couldn't read file";
+
+ case CURLE_LDAP_CANNOT_BIND:
+ return "ldap cannot bind";
+
+ case CURLE_LDAP_SEARCH_FAILED:
+ return "ldap search failed";
+
+ case CURLE_LIBRARY_NOT_FOUND:
+ return "library not found";
+
+ case CURLE_FUNCTION_NOT_FOUND:
+ return "function not found";
+
+ case CURLE_ABORTED_BY_CALLBACK:
+ return "aborted by callback";
+
+ case CURLE_BAD_FUNCTION_ARGUMENT:
+ return "bad function argument";
+
+ case CURLE_BAD_CALLING_ORDER:
+ return "bad calling order";
+
+ case CURLE_HTTP_PORT_FAILED:
+ return "HTTP Interface operation failed";
+
+ case CURLE_BAD_PASSWORD_ENTERED:
+ return "my getpass() returns fail";
+
+ case CURLE_TOO_MANY_REDIRECTS :
+ return "catch endless re-direct loops";
+
+ case CURLE_UNKNOWN_TELNET_OPTION:
+ return "User specified an unknown option";
+
+ case CURLE_TELNET_OPTION_SYNTAX :
+ return "Malformed telnet option";
+
+ case CURLE_OBSOLETE:
+ return "obsolete";
+
+ case CURLE_SSL_PEER_CERTIFICATE:
+ return "peer's certificate wasn't ok";
+
+ case CURLE_GOT_NOTHING:
+ return "when this is a specific error";
+
+ case CURLE_SSL_ENGINE_NOTFOUND:
+ return "SSL crypto engine not found";
+
+ case CURLE_SSL_ENGINE_SETFAILED:
+ return "can not set SSL crypto engine as default";
+
+ case CURLE_SEND_ERROR:
+ return "failed sending network data";
+
+ case CURLE_RECV_ERROR:
+ return "failure in receiving network data";
+
+ case CURLE_SHARE_IN_USE:
+ return "CURLE_SHARE_IN_USER";
+
+ case CURLE_SSL_CERTPROBLEM:
+ return "problem with the local certificate";
+
+ case CURLE_SSL_CIPHER:
+ return "couldn't use specified cipher";
+
+ case CURLE_SSL_CACERT:
+ return "problem with the CA cert (path? access rights?)";
+
+ case CURLE_BAD_CONTENT_ENCODING:
+ return "Unrecognized transfer encoding";
+
+ case CURLE_LDAP_INVALID_URL:
+ return "Invalid LDAP URL";
+
+ case CURLE_FILESIZE_EXCEEDED:
+ return "Maximum file size exceeded";
+
+ case CURLE_FTP_SSL_FAILED:
+ return "Requested FTP SSL level failed";
+
+ case CURL_LAST:
+ break;
+ }
+ /*
+ * By using a switch, gcc -Wall will complain about enum values
+ * which do not appear, helping keep this function up-to-date.
+ * By using gcc -Wall -Werror, you can't forget.
+ *
+ * A table would not have the same benefit. Most compilers will
+ * generate code very similar to a table in any case, so there
+ * is little performance gain from a table. And something is broken
+ * for the user's application, anyways, so does it matter how fast
+ * it _doesn't_ work?
+ *
+ * The line number for the error will be near this comment, which
+ * is why it is here, and not at the start of the switch.
+ */
+ return "CURLcode unknown";
+}
+
+const char *
+curl_multi_strerror(CURLMcode error)
+{
+ switch (error)
+ {
+ case CURLM_CALL_MULTI_PERFORM:
+ return "please call curl_multi_perform() soon";
+
+ case CURLM_OK:
+ return "no error";
+
+ case CURLM_BAD_HANDLE:
+ return "CURLM not valid multi handle";
+
+ case CURLM_BAD_EASY_HANDLE:
+ return "CURLM not valid easy handle";
+
+ case CURLM_OUT_OF_MEMORY:
+ return "CURLM libcurl out of memory";
+
+ case CURLM_INTERNAL_ERROR:
+ return "CURLM libcurl internal bug";
+
+ case CURLM_LAST:
+ break;
+ }
+
+ return "CURLMcode unknown";
+}
+
+const char *
+curl_share_strerror(CURLSHcode error)
+{
+ switch (error)
+ {
+ case CURLSHE_OK:
+ return "no error";
+
+ case CURLSHE_BAD_OPTION:
+ return "CURLSH bad option";
+
+ case CURLSHE_IN_USE:
+ return "CURLSH in use";
+
+ case CURLSHE_INVALID:
+ return "CURLSH invalid";
+
+ case CURLSHE_LAST:
+ break;
+ }
+
+ return "CURLSH unknown";
+}