int ret;
srtuct sockaddr_in from;
ret=revcfrom(sock,recvbuf,BUFSIZE,0,
(struct sockaddr*)&from,&len))==SOCKET_ERROR
from事先不要赋值吗?
通过sock,revcfrom 会把它赋值吗??
书上没给它赋值,有
printf("RECV:'%s FROM <%s>\n'",recvbuf,inet_ntoa(from.sin_addr));
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