Question

我是Linux上用C编程的新手，我尝试创建一个服务器。我打开了接受方法。客户试图连接但没有任何反应！我不知道为什么。想帮帮我吗？

服务器端：

int main(int argc, char *argv[])
{
    int len,err,port;
    if(argc != 2) {  
        exit(1);
    }
    initSem();
    port = atoi(argv[1]);
    initSocket(port);
    printf("server fd: %d.\n", serverFd);

    len = sizeof(struct sockaddr_in);
    printf("len: %d\n",len);
    clientsFd[counterThread] = accept(serverFd,
                                      (struct sockaddr*)&clientsAddress[counterThread],
                                      (socklen_t*)&len);
    printf("new client:: %d", clientsFd[counterThread]);
    if(clientsFd[counterThread] == -1) {
        perror("can't connect to new client.");
        exit(1);
    }

    return 0;
}

void initSocket(int port)
{
    erverFd = socket(AF_INET, SOCK_STREAM, 0);

    serverAdrees rees.sin_addr.s_addr = INADDR_ANY;
    serverAdrees.sin_port = htons(port);
    bind(serverFd, (struct sockaddr*)&serverAdrees, (socklen_t)sizeof(struct sockaddr_in));

    listen(serverFd, MAX_CLIENTS);
}

客户端：

int main(int argc, char *argv[])
{
    int err,len,port;
    struct sockaddr_in serverAddr;
    char massageBuf[MAX_MASSAGE];
    pthread_t readThread;
    if(argc != 3) {
        perror("no arguments..\n");
        return 1;
    }
    if((serverFd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        perror("\n Error : Could not create socket \n");
        return 1;
    }
    printf("server fd: %d.\n", serverFd);

    serverAddr.sin_family = AF_INET;
    port = atoi(argv[2]);
    serverAddr.sin_port = htons(port);
    printf("addr: %s .\n", argv[1]);
    serverAddr.sin_addr.s_addr = htonl(INADDR_ANY);
    printf("before connect\n");
    if(connect(serverFd, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0)
    {
        perror("\n Error : Connect Failed \n");
        return 1;
    }
    printf("after connect \n");
    while (1) {
        scanf("%s", massageBuf);
        printf("%s \n", massageBuf);
        if(-1 == write(serverFd, massageBuf, strlen(massageBuf))) {
            perror("\n Error : write to server Failed \n");
            return 1;
        }
        if(!strcmp(massageBuf,"close")) {
            exit(1);
            return 0;

Answer 1

您的客户端尝试连接到INADDR_ANY，这是对的。将connect（）调用您作为命令行参数提供的地址。

除此之外，很难说，因为代码不是很SSCCE。正如评论所示，请尝试清理它。删除initSem();之类的调用（或显示其代码）和clientsFd[counterThread]

等结构

编辑删除了有关accept()的建议，我的错误。

我的服务器在c不接受为什么？

1 个答案: