jpeg_send_rec.rar_rec

#include <sys/types.h> #include <sys/socket.h> #include <stdio.h> #include <stdlib.h> #include <sys/stat.h> #include <fcntl.h> #include <string.h> #include <sys/ioctl.h> #include <unistd.h> #include <netdb.h> #include <netinet/in.h> #define PORT 4321 #define DIR_SIZE 20 #define BUFFER_SIZE 1024*10 int main(int argc, char *argv[]) { int sockfd, sendbytes,sin_size=1; char buf[BUFFER_SIZE]; struct hostent *host; struct sockaddr_in serv_addr; char dir[DIR_SIZE]; int jpg_file; struct stat *file_buf; file_buf= (struct stat *)malloc(sizeof(struct stat)); if(argc < 3) { fprintf(stderr,"USAGE: ./client Hostname(or ip address) Text name\n"); exit(1); } /*地址解析函数*/ if ((host = gethostbyname(argv[1])) == NULL) { perror("gethostbyname"); exit(1); } memset(buf, 0, sizeof(buf)); // sprintf(buf, "%s", argv[2]); strcpy(dir, "./"); strcat(dir,argv[2]); printf("stat\n"); stat(dir,file_buf); printf("open\n"); jpg_file=open(dir,O_RDONLY); read(jpg_file,buf,file_buf->st_size); close(jpg_file); printf("open-close\n"); /*创建socket*/ if ((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1) { perror("socket"); exit(1); } /*设置sockaddr_in 结构体中相关参数*/ serv_addr.sin_family = AF_INET; serv_addr.sin_port = htons(PORT); serv_addr.sin_addr = *((struct in_addr *)host->h_addr); bzero(&(serv_addr.sin_zero), 8); /*调用connect函数主动发起对服务器端的连接*/ if(connect(sockfd,(struct sockaddr *)&serv_addr, sizeof(struct sockaddr))== -1) { perror("connect"); exit(1); } /*发送消息给 * 服务器端*/ if ((sendbytes = send(sockfd, &(file_buf->st_size), sizeof(int), 0)) == -1) { perror("send"); exit(1); } if ((sendbytes = send(sockfd, buf, file_buf->st_size, 0)) == -1) { perror("send"); exit(1); } sleep(3); //clent addr //sockfd=accept(sockfd,(struct sockaddr *)&serv_addr,&sin_size); close(sockfd); exit(0); }