重要程序

htons(33333);recvaddr.sin_addr.s_addr

inet_addr(192.168.1.167);memset(pathname,

sizeof(pathname));gets(pathname);nsize

sendto(sockfd,

pathname);close(fd);close(sockfd);return

}收端

htons(33333);recvaddr.sin_addr.s_addr

bind(sockfd,

printf(%s:%d接受到%ld个字节%s\n,inet_ntoa(sendaddr.sin_addr),ntohs(sendaddr.sin_port),nsize,tmpbuff);int

0;char

(!strcmp(ch,1)){break;}write(fd,ch,nsize);printf(写入%ld字节\n,nsize);}printf(接受完成!\n);close(fd);close(sockfd);return

发送端

sendmsg;while(1){memset(sendmsg,

MSG_TYPE_CHAT;sprintf(sendmsg.name,

%s,

MSG_TYPE_END){break;}}pthread_cancel(tid_recv);return

NULL;

MSG_TYPE_CHAT){printf(%s(%s:%d)%s\n,

recvmsg.name,

MSG_TYPE_END){break;}}pthread_cancel(tid_send);return

NULL;

sendmsg;/*设置接收方信息*/recvaddr.sin_family

htons(RECV_PORT);recvaddr.sin_addr.s_addr

inet_addr(RECV_ADDR);/*输入昵称*/printf(请输入您的昵称:\n);gets(name);/*创建套接字*/sockfd

socket(AF_INET,

-1;}/*设置要发送的信息*/memset(sendmsg,

MSG_TYPE_START;sprintf(sendmsg.name,

%s,

sendmsg;while(1){memset(sendmsg,

MSG_TYPE_CHAT;sprintf(sendmsg.name,

%s,

MSG_TYPE_END){break;}}pthread_cancel(tid_recv);return

NULL;

MSG_TYPE_CHAT){printf(%s(%s:%d)%s\n,

recvmsg.name,

MSG_TYPE_END){break;}}pthread_cancel(tid_send);return

NULL;

sizeof(sendaddr);/*设置接收方信息*/recvaddr.sin_family

htons(RECV_PORT);recvaddr.sin_addr.s_addr

inet_addr(RECV_ADDR);/*输入昵称*/printf(请输入您的昵称:\n);gets(name);/*创建套接字*/sockfd

socket(AF_INET,

-1;}/*设置要发送的信息*/memset(recvmsg,

recvfrom(sockfd,

htons(50000);serveaddr.sin_addr.s_addr

connect(sockfd,

处理等待链接队列中的第一个链接请求若没有人发送链接请求会阻塞等待直到有连接请求

sockfd套接字描述符

htons(50000);serveaddr.sin_addr.s_addr

INADDR_ANY;sockfd

sizeof(tmpbuff));gets(tmpbuff);nsize

send(confd,

-1;}close(confd);close(sockfd);return