linux简单聊天室程序生成代码

以下是一个简单的 Linux 聊天室程序的生成代码，其中使用了 socket 和 pthread 库：

server.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <pthread.h>

#define PORT 8888
#define MAX_CLIENTS 100

int clients[MAX_CLIENTS];
int num_clients = 0;

void *handle_client(void *arg) {
    int client_fd = *(int *) arg;
    char buffer[1024];

    while (1) {
        memset(buffer, 0, sizeof(buffer));
        if (read(client_fd, buffer, sizeof(buffer)) <= 0) {
            printf("Client %d disconnected\n", client_fd);
            break;
        }
        printf("Received message from client %d: %s", client_fd, buffer);
        for (int i = 0; i < num_clients; i++) {
            if (clients[i] != client_fd) {
                write(clients[i], buffer, strlen(buffer));
            }
        }
    }

    for (int i = 0; i < num_clients; i++) {
        if (clients[i] == client_fd) {
            clients[i] = clients[num_clients - 1];
            num_clients--;
            break;
        }
    }
    close(client_fd);
    return NULL;
}

int main(int argc, char *argv[]) {
    int server_fd, client_fd;
    struct sockaddr_in server, client;
    pthread_t thread;

    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    server.sin_family = AF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = htons(PORT);

    if (bind(server_fd, (struct sockaddr *) &server, sizeof(server)) == -1) {
        perror("bind");
        exit(EXIT_FAILURE);
    }

    if (listen(server_fd, 5) == -1) {
        perror("listen");
        exit(EXIT_FAILURE);
    }

    printf("Server started\n");

    while (1) {
        socklen_t client_len = sizeof(client);
        if ((client_fd = accept(server_fd, (struct sockaddr *) &client, &client_len)) == -1) {
            perror("accept");
            continue;
        }
        if (num_clients == MAX_CLIENTS) {
            printf("Maximum number of clients reached\n");
            close(client_fd);
            continue;
        }
        clients[num_clients++] = client_fd;
        pthread_create(&thread, NULL, handle_client, (void *) &client_fd);
        pthread_detach(thread);
        printf("Client %d connected\n", client_fd);
    }

    return 0;
}

client.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>

#define SERVER_IP "127.0.0.1"
#define PORT 8888

int main(int argc, char *argv[]) {
    int server_fd;
    struct sockaddr_in server;
    char buffer[1024];

    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    server.sin_family = AF_INET;
    server.sin_addr.s_addr = inet_addr(SERVER_IP);
    server.sin_port = htons(PORT);

    if (connect(server_fd, (struct sockaddr *) &server, sizeof(server)) == -1) {
        perror("connect");
        exit(EXIT_FAILURE);
    }

    printf("Connected to server\n");

    while (1) {
        fgets(buffer, sizeof(buffer), stdin);
        if (write(server_fd, buffer, strlen(buffer)) == -1) {
            perror("write");
            exit(EXIT_FAILURE);
        }
    }

    return 0;
}

以上代码可以在 Linux 系统下编译运行，实现一个简单的聊天室程序。