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Use a specified TLS cipher list for https name lookups
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@ -1,4 +1,3 @@
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# Toxic [![Build Status](https://travis-ci.org/JFreegman/toxic.png?branch=master)](https://travis-ci.org/JFreegman/toxic)
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Toxic is a [Tox](https://tox.chat)-based instant messenging client which formerly resided in the [Tox core repository](https://github.com/irungentoo/toxcore), and is now available as a standalone application.
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[![Toxic Screenshot](https://i.imgur.com/san99Z2.png "Home Screen")](https://i.imgur.com/san99Z2.png)
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@ -41,6 +41,9 @@ extern struct Winthread Winthread;;
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#define MAX_DOMAIN_SIZE 32
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#define MAX_SERVER_LINE MAX_DOMAIN_SIZE + (SERVER_KEY_SIZE * 2) + 3
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/* List based on Mozilla's recommended configurations for modern browsers */
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#define TLS_CIPHER_SUITE_LIST "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK"
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struct Nameservers {
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int lines;
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char names[MAX_SERVERS][MAX_DOMAIN_SIZE];
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@ -282,8 +285,9 @@ void *lookup_thread_func(void *data)
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curl_easy_setopt(c_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
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curl_easy_setopt(c_handle, CURLOPT_POSTFIELDS, post_data);
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if (curl_easy_setopt(c_handle, CURLOPT_USE_SSL, CURLUSESSL_ALL) != CURLE_OK) {
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lookup_error(self, "Failed to enable TLS.");
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lookup_error(self, "TLS could not be enabled.");
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goto on_exit;
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}
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@ -292,13 +296,18 @@ void *lookup_thread_func(void *data)
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goto on_exit;
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}
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if (curl_easy_setopt(c_handle, CURLOPT_SSL_CIPHER_LIST, TLS_CIPHER_SUITE_LIST) != CURLE_OK) {
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lookup_error(self, "Failed to set TLS cipher list.");
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goto on_exit;
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}
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if (curl_easy_perform(c_handle) != CURLE_OK) {
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lookup_error(self, "curl lookup error.");
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lookup_error(self, "https lookup error.");
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goto on_exit;
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}
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if (process_response(&recv_data) == -1) {
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lookup_error(self, "parsing error.");
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lookup_error(self, "Name lookup failed.");
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goto on_exit;
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}
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