请写出基于socket的C语音linux服务端和windows客户端任意文件传输
时间: 2023-06-24 15:07:56 浏览: 50
以下是一个基于socket的C语言Linux服务端和Windows客户端任意文件传输的示例代码。代码中使用了TCP协议进行通信,服务端监听指定端口,客户端连接指定的IP和端口。
服务端代码:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#define PORT 8888
int main(int argc, char const *argv[])
{
int server_fd, new_socket, valread;
struct sockaddr_in address;
int opt = 1;
int addrlen = sizeof(address);
char buffer[1024] = {0};
char filename[100] = {0};
FILE *fp;
// 创建 socket 文件描述符
if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0)
{
perror("socket failed");
exit(EXIT_FAILURE);
}
// 设置 socket 选项
if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt)))
{
perror("setsockopt");
exit(EXIT_FAILURE);
}
// 初始化地址结构体
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(PORT);
// 绑定地址和端口
if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0)
{
perror("bind failed");
exit(EXIT_FAILURE);
}
// 监听端口
if (listen(server_fd, 3) < 0)
{
perror("listen failed");
exit(EXIT_FAILURE);
}
// 等待客户端连接
if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t *)&addrlen)) < 0)
{
perror("accept failed");
exit(EXIT_FAILURE);
}
// 接收文件名
valread = read(new_socket, filename, sizeof(filename));
if (valread < 0)
{
perror("read failed");
exit(EXIT_FAILURE);
}
// 打开文件
fp = fopen(filename, "wb");
if (fp == NULL)
{
perror("fopen failed");
exit(EXIT_FAILURE);
}
// 接收文件内容并写入文件
while ((valread = read(new_socket, buffer, sizeof(buffer))) > 0)
{
fwrite(buffer, sizeof(char), valread, fp);
memset(buffer, 0, sizeof(buffer));
}
// 关闭文件和 socket
fclose(fp);
close(new_socket);
close(server_fd);
return 0;
}
```
客户端代码:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#define PORT 8888
int main(int argc, char const *argv[])
{
int sock = 0, valread;
struct sockaddr_in serv_addr;
char buffer[1024] = {0};
char filename[100] = {0};
FILE *fp;
// 创建 socket 文件描述符
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
printf("\n Socket creation error \n");
return -1;
}
// 初始化地址结构体
memset(&serv_addr, '0', sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
// 将 IP 地址从字符串转换为二进制格式
if (inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr) <= 0)
{
printf("\n Invalid address/ Address not supported \n");
return -1;
}
// 连接服务器
if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
{
printf("\n Connection Failed \n");
return -1;
}
// 发送文件名
printf("Enter filename: ");
scanf("%s", filename);
send(sock, filename, strlen(filename), 0);
// 打开文件
fp = fopen(filename, "rb");
if (fp == NULL)
{
perror("fopen failed");
exit(EXIT_FAILURE);
}
// 发送文件内容
while (!feof(fp))
{
valread = fread(buffer, sizeof(char), sizeof(buffer), fp);
send(sock, buffer, valread, 0);
memset(buffer, 0, sizeof(buffer));
}
// 关闭文件和 socket
fclose(fp);
close(sock);
return 0;
}
```
使用方法:
1. 在 Linux 平台上编译并运行服务端代码:
```
$ gcc server.c -o server
$ ./server
```
2. 在 Windows 平台上编译并运行客户端代码:
```
> gcc client.c -o client
> client.exe
```
3. 在客户端上输入要传输的文件名,程序将自动将文件发送给服务端。服务端接收到文件后将保存在当前目录下。