socket以C语音实现linux服务端和windows客户端任意文件传输

以下是一个简单的示例代码，用于在Linux上实现服务端，Windows上实现客户端的文件传输。需要注意的是，这个示例代码并不完善，实际使用中可能需要进行更多的错误处理和安全性考虑。

服务端代码（Linux）：

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

int main(int argc, char *argv[]) {
    if (argc != 2) {
        fprintf(stderr, "Usage: %s <port>\n", argv[0]);
        exit(1);
    }

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

    // 绑定地址和端口
    struct sockaddr_in server_addr = {0};
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    server_addr.sin_port = htons(atoi(argv[1]));
    if (bind(server_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) == -1) {
        perror("bind");
        exit(1);
    }

    // 监听端口
    if (listen(server_fd, 10) == -1) {
        perror("listen");
        exit(1);
    }

    printf("Waiting for connection...\n");

    // 接受连接
    struct sockaddr_in client_addr = {0};
    socklen_t client_len = sizeof(client_addr);
    int client_fd = accept(server_fd, (struct sockaddr *)&client_addr, &client_len);
    if (client_fd == -1) {
        perror("accept");
        exit(1);
    }

    printf("Connected!\n");

    // 接收文件名
    char filename[256];
    ssize_t recv_len = recv(client_fd, filename, sizeof(filename), 0);
    if (recv_len <= 0) {
        perror("recv");
        exit(1);
    }

    // 打开文件
    FILE *fp = fopen(filename, "wb");
    if (fp == NULL) {
        perror("fopen");
        exit(1);
    }

    // 接收文件内容
    char buf[1024];
    while ((recv_len = recv(client_fd, buf, sizeof(buf), 0)) > 0) {
        if (fwrite(buf, 1, recv_len, fp) != recv_len) {
            perror("fwrite");
            exit(1);
        }
    }
    if (recv_len == -1) {
        perror("recv");
        exit(1);
    }

    printf("File received: %s\n", filename);

    // 关闭文件和socket
    fclose(fp);
    close(client_fd);
    close(server_fd);

    return 0;
}

客户端代码（Windows）：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

int main(int argc, char *argv[]) {
    if (argc != 4) {
        fprintf(stderr, "Usage: %s <server_ip> <server_port> <filename>\n", argv[0]);
        exit(1);
    }

    // 初始化Winsock库
    WSADATA wsa_data;
    if (WSAStartup(MAKEWORD(2, 2), &wsa_data) != 0) {
        perror("WSAStartup");
        exit(1);
    }

    // 创建socket
    SOCKET client_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (client_socket == INVALID_SOCKET) {
        perror("socket");
        exit(1);
    }

    // 连接到服务端
    struct sockaddr_in server_addr = {0};
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = inet_addr(argv[1]);
    server_addr.sin_port = htons(atoi(argv[2]));
    if (connect(client_socket, (struct sockaddr *)&server_addr, sizeof(server_addr)) == SOCKET_ERROR) {
        perror("connect");
        exit(1);
    }

    printf("Connected!\n");

    // 发送文件名
    if (send(client_socket, argv[3], strlen(argv[3]), 0) == SOCKET_ERROR) {
        perror("send");
        exit(1);
    }

    // 打开文件
    FILE *fp = fopen(argv[3], "rb");
    if (fp == NULL) {
        perror("fopen");
        exit(1);
    }

    // 发送文件内容
    char buf[1024];
    size_t read_len;
    while ((read_len = fread(buf, 1, sizeof(buf), fp)) > 0) {
        if (send(client_socket, buf, read_len, 0) == SOCKET_ERROR) {
            perror("send");
            exit(1);
        }
    }

    printf("File sent: %s\n", argv[3]);

    // 关闭文件和socket
    fclose(fp);
    closesocket(client_socket);
    WSACleanup();

    return 0;
}