IRC套接字连接问题

Problem with IRC socket connection

本文关键字：问题 连接 套接字 IRC      更新时间：2023-10-16

在JOIN和USER期间发生错误，它告诉我需要"先注册"。三:PASS, NICK工作正确(可能)。你知道这怎么可能吗?我遵循了相关的RFC, https://www.rfc-editor.org/rfc/rfc1459#section-4.1

代码:

#include <iostream>
#include <winsock2.h>
#include <string>
#include <cstring>
#include <fstream>
#pragma comment(lib, "ws2_32.lib")
using namespace std;
unsigned long resolveHost(const string &host){
    LPHOSTENT entryHost = gethostbyname(host.c_str());
    if(!entryHost){
        unsigned int addr = inet_addr(host.c_str());
        entryHost = gethostbyaddr((char*)&addr, 4, AF_INET);
        if(!entryHost)  return 0;
    }
    return *((int*)*entryHost->h_addr_list);
}
int main(){
    WSADATA         wsaData;
    SOCKADDR_IN     saddr;
    SOCKET          sock;
    char            buffer[1024*8] = {"0"};
    string          adres_hosta = "irc.example.com";
    string          sbuffer;
    string          nick = "johnsmith";
    string          kanal = "#channel";
    string          password = "p@55w0rd";
    string          auth = "/AuthServ auth johnsmith p@55w0rd";
    WSAStartup(MAKEWORD(2, 2), &wsaData);
    sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    saddr.sin_addr.S_un.S_addr = resolveHost(adres_hosta);
    saddr.sin_port =  htons(6667);
    saddr.sin_family = AF_INET;
    if(connect(sock, (sockaddr*)&saddr, sizeof(sockaddr)) == SOCKET_ERROR){
        cout << "Nie udalo sie nawiazac polaczenia z " << adres_hosta << ".";
        return 0;
    }
    recv(sock, buffer, 1024*8, 0);
    cout << buffer << endl << endl << flush;
    /*
           1. Pass message
           2. Nick message
           3. User message
    */
    sbuffer ="PASS " + password + "rn";
    send(sock, sbuffer.c_str(), strlen(sbuffer.c_str()), 0);
    recv(sock, buffer, 1024*8, 0);
    cout << sbuffer.c_str() << endl << buffer << endl << endl;
    sbuffer = "NICK " + nick + "rn";
    send(sock, sbuffer.c_str(), strlen(sbuffer.c_str()), 0);
    recv(sock, buffer, 1024*8, 0);
    cout << sbuffer.c_str() << endl << buffer << endl << endl;
    sbuffer = "USER " + nick + " " + adres_hosta + " " + nick + " :" + nick + "rn";
    send(sock, sbuffer.c_str(), strlen(sbuffer.c_str()), 0);
    recv(sock, buffer, 1024*8, 0);
    cout << sbuffer.c_str() << endl << buffer << endl << endl;
    sbuffer = "JOIN " + kanal + "rn";
    send(sock, sbuffer.c_str(), strlen(sbuffer.c_str()), 0);
    recv(sock, buffer, 1024*8, 0);
    cout << sbuffer.c_str() << endl << buffer << endl << endl;
    while(true){
        recv(sock, buffer, 1024*8, 0);
        cout << buffer << endl << endl;
        if(buffer[0] == 'PING'){
            sbuffer = "PONG :" + adres_hosta + "rn";
            send(sock, sbuffer.c_str(), strlen(sbuffer.c_str()), 0);
            cout << sbuffer.c_str() << endl << buffer << endl << endl;
        }
    }
    return 1;
}

日志与连接:

NOTICE AUTH :*** Looking up your hostname

PASS p@55w0rd
NOTICE AUTH :*** Checking Ident
NOTICE AUTH :*** Found your hostname

NICK johnsmith
PING :229860947
Checking Ident
NOTICE AUTH :*** Found your hostname

USER johnsmith johnSmith test :johnSmith
NOTICE AUTH :*** No ident response
ICE AUTH :*** Found your hostname

JOIN #channel
:server.example.com 451 johnSmith johnSmith :Register first.

我猜，要加入那个特定的频道，您的昵称必须在NickServ或等效的IRC服务中注册。你可能需要注册你正在使用的昵称NickServ(我建议使用常规的IRC客户端这样做，使它更容易)，然后，从你的代码，PRIVMSG NickServ与某种授权命令"登录"之前，它将允许你加入该频道。可能有一个通道模式来控制是否允许非授权用户加入。

如果你还没有，我建议使用一个空的，未注册的通道来做你的测试。它有助于控制测试环境，并且在您开发软件的过程中，不会有好奇的人试图破坏您的软件。

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