broadcastserver_client.rar_broadcast_broadcastswrver_局域网_广播_广播 V

///////////////////////////////////////// // sender.cpp文件 #include "initsock.h" #include "stdio.h" #include <windows.h> CInitSock theSock; void main() { SOCKET s = ::socket(AF_INET, SOCK_DGRAM, 0); // 有效SO_BROADCAST选项 BOOL bBroadcast = TRUE; ::setsockopt(s, SOL_SOCKET, SO_BROADCAST, (char*)&bBroadcast, sizeof(BOOL)); // 设置广播地址，这里的广播端口号（电台）是4567 SOCKADDR_IN bcast; bcast.sin_family = AF_INET; bcast.sin_addr.s_addr = INADDR_BROADCAST; // ::inet_addr("255.255.255.255"); bcast.sin_port = htons(4567); // 发送广播 printf(" 开始向4567端口发送广播数据... \n \n"); char sz[] = "This is just a test. \r\n"; while(TRUE) { ::sendto(s, sz, strlen(sz), 0, (sockaddr*)&bcast, sizeof(bcast)); ::Sleep(5000); } } /* ::send(s, sz, strlen(sz), 0); sockaddr_in addr; addr.sin_family = AF_INET; addr.sin_port = ntohs(3333); addr.sin_addr.S_un.S_addr = ADDR_ANY; if(::bind(s, (sockaddr*)&addr, sizeof(addr)) == SOCKET_ERROR) { printf(" bind() failed \n"); return; } */