为什么我收不到服务器的消息？

Question

我正在按照官方文档尝试连接到 twitch：https://dev.twitch.tv/docs 但是我无法连接，每个函数 returns 都成功，但我仍然没有在 while(1) 循环中收到任何消息。

#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>

BOOL WriteServerMessage(SOCKET s, const char *msg)
{
    printf("Sending \"%s\"...", msg);
    INT ret = send(s, msg, strlen(msg), 0);
    if(ret < 0)
    {
        printf(" error %lu\n", GetLastError());
        return 0;
    }
    printf(" success!\n");
    return 1;
}

int main(int argc, char **argv)
{
    WSADATA wsaData;
    INT iRetval;

    struct addrinfo *result = NULL;
    struct addrinfo hints;

    struct sockaddr_in *sockaddr_ipv4;

    iRetval = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if(iRetval != 0)
    {
        printf("WSAStartup failed: %d\n", iRetval);
        return 1;
    }

    ZeroMemory(&hints, sizeof(hints));
    hints.ai_family = AF_UNSPEC;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;

    iRetval = getaddrinfo(argv[1], argv[2], &hints, &result);
    if(iRetval != 0)
    {
        printf("getaddrinfo failed with error: %d\n", iRetval);
        WSACleanup();
        return 1;
    }
    sockaddr_ipv4 = (struct sockaddr_in*) result->ai_addr;

    SOCKET sock = socket(AF_INET, SOCK_STREAM, 0);
    iRetval = connect(sock, (struct sockaddr*) sockaddr_ipv4, sizeof(*sockaddr_ipv4));
    if(iRetval < 0)
    {
        printf("Bind failed with %u\n", WSAGetLastError());
        printf("Server port: %d\n", sockaddr_ipv4->sin_port);
    }
    WriteServerMessage(sock, "PASS oauth:hbptkiz0ot187euawbnnkvghdhdgk3");
    WriteServerMessage(sock, "NICK kanalmanagerbot");
    WriteServerMessage(sock, "JOIN #h0llylp");
    WriteServerMessage(sock, "PRIVMSG #h0llylp :Hello there");
    char buf[1024];
    while(1)
    {
        if(recv(sock, buf, sizeof(buf), 0) > 0)
        {
            printf("Received: %s\n", buf);
            if(!strcmp(buf, "PING :tmi.twitch.tv"))
                WriteServerMessage(sock, "PONG :tmi.twitch.tv");
        }
        Sleep(10);
    }
    WriteServerMessage(sock, "PART #h0llylp");
    WriteServerMessage(sock, "QUIT");

    closesocket(sock);

    freeaddrinfo(result);
    WSACleanup();
    return 0;
}

我正在使用这些标志调用 .exe：“irc.chat.twitch.tv”6667

我正在使用 JOIN 加入随机聊天，oauth 令牌是在这里生成的：https://twitchapps.com/tmi/#access_token

我希望能够加入聊天并使用所有 IRC 功能，例如 NAMES 或 PRIVMSG

我做错了什么？

Answer 1

Twitch IRC guide says they "generally follow RFC1459".

那个文件依次says

IRC messages are always lines of characters terminated with a CR-LF (Carriage Return - Line Feed) pair, and these messages shall not exceed 512 characters in length, counting all characters including the trailing CR-LF.

您发送的消息字符串不会被 CR-LF 终止，因此在您发送 CR-LF 之前服务器不会对它们做任何处理。

您需要确保您的消息根据规范正确终止。

您的套接字读取代码也需要适应这一点 - 您不能只读取多个字节并希望它们是一条消息。

为什么我收不到服务器的消息？

Why am I not receiving messages from the server?

c

winapi

twitch