基于tcp协议下的linux网络编程的服务器端和客户端.docVIP

基于TCP协议下的Linux网络编程的服务器端和客户端 客户端： Client.c /* ************************************************* *Name : Linux Client * *Date : 2014-11-10 * *Author : marksman * *Aim : Linux Client can send and receive * * message. * ************************************************* */ #include stdio.h #include sys/socket.h #include netinet/in.h #include stdlib.h #include memory.h #include string.h int main(int argc,char *argv[]) { int socketfd,receive_socket; struct sockaddr_in s_add,c_add; unsigned short portnum = 0x22B8; int len; char buf[100]; /* *Create the socket */ if((socketfd=socket(AF_INET,SOCK_STREAM,0))0) { printf(Socket create error! \n); exit(1); } /* *set the address format */ bzero(s_add,sizeof(struct sockaddr_in)); s_add.sin_family = AF_INET; s_add.sin_addr.s_addr = inet_addr(127.0.0.1);//change the string to 32-bit internet byte. s_add.sin_port=htons(portnum); if (connect(socketfd,(struct sockaddr *)(s_add),sizeof(struct sockaddr))0) { printf(Connect failure!\n); return -1; } else printf(Connect Success!\n); /* *Using the loop to send and receive the message. */ while(1) { memset(buf,\0,100); printf(Input message to send: ); fgets(buf,100,stdin); len=send(socketfd,buf,strlen(buf)-1,0); if(len0) { printf(send error!\n); exit(1); } else { printf(Send Success! send is : %s \n,buf); } memset(buf,\0,100); len=recv(socketfd,buf,100,0); if(len0) { printf(recv error!\n); exit(1); } else if(0 == len) { printf(client quit!\n); exit(1); } else { printf(receive message is : %s\n,buf); } printf(--------------------------\n); } close(socketfd); } 服务器端： Server.c /* ************************************************* *Name : Linux Server * *Date : 2014-11-10 * *Author : marksman