基于TCP文件传输控制台程序.zip

#include <Winsock2.h> #include <stdio.h> #pragma comment(lib,"ws2_32.lib") int main() { WSAData wsaData; int err=WSAStartup(WINSOCK_VERSION,&wsaData); if(0!=err) { return -1; } SOCKET sock=socket(AF_INET,SOCK_STREAM,0); sockaddr_in LocalAddr; LocalAddr.sin_addr.S_un.S_addr=htonl(INADDR_ANY); LocalAddr.sin_family=AF_INET; LocalAddr.sin_port=htons(4000); bind(sock,(sockaddr*)&LocalAddr,sizeof(sockaddr)); listen(sock,5); sockaddr_in ClientAddr; int AddrLen=sizeof(sockaddr); char path[100]={"0"}; printf("请输入写入文件路径:(例如E:\\2.txt)\n"); gets(path); FILE *fp=fopen(path,"wb"); if(!fp) { printf("打开文件失败!"); return 1; } else { printf("文件已经打开，等待传输...\n"); } int count=1; SOCKET sockconnect=accept(sock,(sockaddr*)&ClientAddr,&AddrLen); if ( INVALID_SOCKET==sockconnect) { printf("accept error"); return 0; } else { char msg[100]={0}; sprintf(msg,"接收到 %s 的连接!\n",inet_ntoa(ClientAddr.sin_addr)); send(sockconnect,msg,strlen(msg)+1,0); } char data[100]; int i=0; while(1) { memset(data,0,100); int recvlen=recv(sockconnect,data,100,0); if (recvlen<=0) { break; } fwrite(data,1,recvlen,fp); i++; printf("retlen=%d i=%d\n",recvlen,i); printf("写入的文件内容为：\n %s\n",data); } closesocket(sockconnect); fclose(fp); WSACleanup(); return 0; } 服务器 #include <Winsock2.h> #include <stdio.h> #pragma comment(lib,"ws2_32.lib") int main() { WSAData wsaData; int err=WSAStartup(WINSOCK_VERSION,&wsaData); if(0!=err) { return -1; } SOCKET sock=socket(AF_INET,SOCK_STREAM,0); sockaddr_in ServerAddr; ServerAddr.sin_addr.S_un.S_addr=inet_addr("127.0.0.1"); ServerAddr.sin_family=AF_INET; ServerAddr.sin_port=htons(4000); connect(sock,(sockaddr*)&ServerAddr,sizeof(sockaddr)); char path[100]={"0"}; printf("请输入文件路径: (例如D:\\1.txt)\n"); gets(path); FILE* fp=fopen(path,"rb"); // 读写二进制文件 记得 加 b if(!fp) { printf("error!"); return 1; } else { printf("文件已经打开，等待传输...\n"); } char data[100]={0}; int len=0; int i=0; while ((len=fread(data,1,100,fp))>0 ) { send(sock,data,len,0); i++; printf("i=%d len=%d\n",i,len); } fclose(fp); closesocket(sock); WSACleanup(); return 0; }