UDP client.c

xiaoxiao2021-02-28  100

#define _CRT_SECURE_NO_DEPRECATE #pragma comment(lib, "ws2_32.lib") #include<winsock2.h> #include<stdio.h> #include<WS2tcpip.h> BOOL InitWinsock(); void main() { SOCKET socket1; InitWinsock(); struct sockaddr_in server; int len = sizeof(server); struct in_addr s; inet_pton(AF_INET, "127.0.0.1", (void *)&s); server.sin_family = AF_INET; server.sin_port = htons(1000); server.sin_addr.s_addr = s.s_addr; socket1 = socket(AF_INET, SOCK_DGRAM, 0); while (1) { char buffer[1024] = "\0"; printf("input message\n"); scanf_s("%s", buffer,1024); if (strcmp(buffer, "bye") == 0) break; if (sendto(socket1, buffer, sizeof(buffer), 0, (struct sockaddr*)&server, len) != SOCKET_ERROR); { if (recvfrom(socket1, buffer, sizeof(buffer), 0, (struct sockaddr*)&server, &len) != SOCKET_ERROR);      printf("rece from server:%s\n", buffer); } } closesocket(socket1); } BOOL InitWinsock() { int Error; WORD VersionRequested; WSADATA WsaData; VersionRequested = MAKEWORD(2, 2); Error = WSAStartup(VersionRequested, &WsaData); if (Error != 0) return FALSE; else { if (LOBYTE(WsaData.wVersion) != 2 || HIBYTE(WsaData.wHighVersion) != 2) { WSACleanup(); return FALSE; } } return TRUE; }
转载请注明原文地址: https://www.6miu.com/read-62935.html

最新回复(0)