char buffer[BUFFER_SIZE];
bzero(buffer, sizeof(buffer));
length = recv(new_server_socket, buffer, BUFFER_SIZE, 0);
if (length < 0)
{
printf("Server Recieve Data Failed!\n");
break;
}
char file_name[FILE_NAME_MAX_SIZE + 1];
bzero(file_name, sizeof(file_name));
strncpy(file_name, buffer,
strlen(buffer) > FILE_NAME_MAX_SIZE FILE_NAME_MAX_SIZE : strlen(buffer));
FILE *fp = fopen(file_name, "r");
if (fp == NULL)
{
printf("File:\t%s Not Found!\n", file_name);
}
else
{
bzero(buffer, BUFFER_SIZE);
int file_block_length = 0;
while( (file_block_length = fread(buffer, sizeof(char), BUFFER_SIZE, fp)) > 0)
{
printf("file_block_length = %d\n", file_block_length);
// 发送buffer中的字符串到new_server_socket,实际上就是发送给客户端
if (send(new_server_socket, buffer, file_block_length, 0) < 0)
{
printf("Send File:\t%s Failed!\n", file_name);
break;
}
bzero(buffer, sizeof(buffer));
}
fclose(fp);
printf("File:\t%s Transfer Finished!\n", file_name);
}
close(new_server_socket);
}
close(server_socket);
return 0;
}
//////////////////////////////////////////////////////
// file_client.c socket传输文件的client端示例程序
// ///////////////////////////////////////////////////
#include // for sockaddr_in
#include // for socket
#include // for socket
#include // for printf
#include // for exit
#include // for bzero
#define HELLO_WORLD_SERVER_PORT 6666
#define BUFFER_SIZE 1024
#define FILE_NAME_MAX_SIZE 512
int main(int argc, char **argv)
{
if (argc != 2)
{
printf("Usage: ./%s ServerIPAddress\n", argv[0]);
exit(1);
}
// 设置一个socket地址结构client_addr, 代表客户机的internet地址和端口
struct sockaddr_in client_addr;
bzero(&client_addr, sizeof(client_addr));
client_addr.sin_family = AF_INET; // internet协议族
client_addr.sin_addr.s_addr = htons(INADDR_ANY); // INADDR_ANY表示自动获取本机地址
client_addr.sin_port = htons(0); // auto allocated, 让系统自动分配一个空闲端口
// 创建用于internet的流协议(TCP)类型socket，用client_socket代表客户端socket
int client_socket = socket(AF_INET, SOCK_STREAM, 0);
if (client_socket < 0)
{
printf("Create Socket Failed!\n");
exit(1);
}
// 把客户端的socket和客户端的socket地址结构绑定
if (bind(client_socket, (struct sockaddr*)&client_addr, sizeof(client_addr)))
{
printf("Client Bind Port Failed!\n");
exit(1);
}
// 设置一个socket地址结构server_addr,代表服务器的internet地址和端口
struct sockaddr_in server_addr;
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
// 服务器的IP地址来自程序的参数
if (inet_aton(argv , &server_addr.sin_addr) == 0)
{
printf("Server IP Address Error!\n");
exit(1);
}
server_addr.sin_port = htons(HELLO_WORLD_SERVER_PORT);
socklen_t server_addr_length = sizeof(server_addr);
// 向服务器发起连接请求，连接成功后client_socket代表客户端和服务器端的一个socket连接
if (connect(client_socket, (struct sockaddr*)&server_addr, server_addr_length) < 0)
{
printf("Can Not Connect To %s!\n", argv );
exit(1);
}
char file_name[FILE_NAME_MAX_SIZE + 1];
bzero(file_name, sizeof(file_name));
printf("Please Input File Name On Server.\t");
scanf("%s", file_name);
char buffer[BUFFER_SIZE];
bzero(buffer, sizeof(buffer));
strncpy(buffer, file_name, strlen(file_name) > BUFFER_SIZE BUFFER_SIZE : strlen(file_name));
// 向服务器发送buffer中的数据，此时buffer中存放的是客户端需要接收的文件的名字
send(client_socket, buffer, BUFFER_SIZE, 0);
FILE *fp = fopen(file_name, "w");
if (fp == NULL)
{
printf("File:\t%s Can Not Open To Write!\n", file_name);
exit(1);
}