- #include <netinet/in.h> // for sockaddr_in
- #include <sys/types.h> // for socket
- #include <sys/socket.h> // for socket
- #include <stdio.h> // for printf
- #include <stdlib.h> // for exit
- #include <string.h> // for bzero
- /*
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <unistd.h>
- */
- #define SERVER_PORT 6666
- #define BUFFER_SIZE 1024
- #define FILE_NAME_MAX_SIZE 512
- int main(int argc, char **argv)
- {
- if (argc != 2)
- {
- printf("Please input the IP address of the server \\n", argv[0]);
- exit(1);
- }
- //设置一个socket地址结构client_addr,代表客户机internet地址, 端口
- struct sockaddr_in client_addr;
- bzero(&client_addr, sizeof(client_addr)); //把一段内存区的内容全部设置为0
- 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); //0表示让系统自动分配一个空闲端口
- //创建用于internet的流协议(TCP)socket,用client_socket代表客户机socket
- int client_socket = socket(AF_INET, SOCK_STREAM, 0);
- if (client_socket < 0)
- {
- printf("Create Socket Failed!\\n");
- exit(1);
- }
- //把客户机的socket和客户机的socket地址结构联系起来
- 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, 端口
- struct sockaddr_in server_addr;
- bzero(&server_addr, sizeof(server_addr));
- server_addr.sin_family = AF_INET;
- if (inet_aton(argv[1], &server_addr.sin_addr) == 0) //服务器的IP地址来自程序的参数
- {
- printf("Server IP Address Error! \\n");
- exit(1);
- }
- server_addr.sin_port = htons(SERVER_PORT);
- socklen_t server_addr_length = sizeof(server_addr);
- // 向服务器发起连接,连接成功后client_socket代表了客户机和服务器的一个socket连接
- if (connect(client_socket, (struct sockaddr*) &server_addr,
- server_addr_length) < 0)
- {
- printf("Can Not Connect To %s!\\n", argv[1]);
- exit(1);
- }
- // 连接上服务器, 选择要上传的文件
- char file_name[FILE_NAME_MAX_SIZE + 1];bzero
- (file_name, FILE_NAME_MAX_SIZE + 1);
- printf("Please Input File Name Upload To Server: ");
- scanf("%s", file_name);
- char buffer[BUFFER_SIZE];
- bzero(buffer, BUFFER_SIZE);
- strncpy(buffer, file_name,
- strlen(file_name) > BUFFER_SIZE? BUFFER_SIZE : strlen(file_name));
- FILE * fp = fopen(file_name, "r");
- if (NULL == fp)
- {
- printf("File: %s NOT FOUND! \\n", file_name);
- exit(1);
- }
- // 发送文件名
- int nameLength = send(client_socket, buffer, BUFFER_SIZE, 0);
- if (nameLength < 0)
- {
- printf("File name Error! \\n");
- exit(0);
- }
- bzero(buffer, BUFFER_SIZE);
- int file_block_length = 0;
- while ((file_block_length = fread(buffer, sizeof(char), BUFFER_SIZE, fp))
- > 0)
- {
- if (send(client_socket, buffer, file_block_length, 0) < 0)
- {
- printf("Send File:\\t%s Failed\\n", file_name);
- break;
- }
- bzero(buffer, BUFFER_SIZE);
- }
- printf("File:\\t%s Transfer Finished\\n", file_name);
- fclose(fp);
- close(client_socket);
- return 0;
- }
- //该片段来自于http://www.codesnippet.cn/detail/160520133410.html
来源: http://www.codesnippet.cn/detail/160520133410.html