diff options
| -rw-r--r-- | src/irc/irc_client.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/irc/irc_client.cpp b/src/irc/irc_client.cpp index 5f26bf0..40078d9 100644 --- a/src/irc/irc_client.cpp +++ b/src/irc/irc_client.cpp @@ -483,12 +483,16 @@ bool IrcClient::send_channel_message(const std::string& chan_name, const std::st } // The max size is 512, taking into account the whole message, not just // the text we send. - // This includes our own nick, username and host (because this will be - // added by the server into our message), in addition to the basic - // components of the message we send (command name, chan name, \r\n et) + // This includes our own nick, constants for username and host (because these + // are notoriously hard to know what the server will use), in addition to the basic + // components of the message we send (command name, chan name, \r\n etc.) // : + NICK + ! + USER + @ + HOST + <space> + PRIVMSG + <space> + CHAN + <space> + : + \r\n + // 63 is the maximum hostname length defined by the protocol. 10 seems to be + // the username limit. + constexpr auto max_username_size = 10; + constexpr auto max_hostname_size = 63; const auto line_size = 512 - - this->current_nick.size() - this->username.size() - this->own_host.size() - + this->current_nick.size() - max_username_size - max_hostname_size - ::strlen(":!@ PRIVMSG ") - chan_name.length() - ::strlen(" :\r\n"); const auto lines = cut(body, line_size); for (const auto& line: lines) |