linux环境下gcc,socket中UDP的recvfrom函数原型
ssize_t recvfrom(int sockfd,void *buf,int len,unsigned int flags,...retval = recvfrom(sockfd, buf, len, 0,(struct sockaddr *)&their_addr, &sin_size);
printf("%s\t%s\n",inet_ntoa...buf, len, 0,(struct sockaddr *)&(recvmsg->their_addr), &(recvmsg->sin_size));
printf("%s\t%s\n",inet_ntoa