socket编程accept()始终返回SOCKET_ERROR

[hakase_toshi]

写了一个简单的c语言socket程序，我用while循环阻塞accept()直到有客户端访问，现在的情况是客户端能够connect成功，但是就是服务端始终没返回正确的accept，一直卡在循环里面，无法进行下一步的recv()

服务端代码：

#include<iostream>
#include<winsock2.h>

using namespace std;



void ErrorHandling(char * Line) {
	cout << Line << endl;
	system("pause");
	exit(-1);
}

int main() {

	WSADATA wsadata;
	sockaddr_in seraddr,clnadr;
	SOCKET ServiceSocket, ClientSocket;
	int ClientAdrSize;

	char message[100]="NULL";
	//char *server_ip = "192.168.1.105";
	char *port = "8801";
	int strlen=0;
	const int BUF_SIZE = 100;

	if (WSAStartup(MAKEWORD(2, 2), &wsadata) != 0)
		ErrorHandling("WSAStartup Error!");
	
	ServiceSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);


	if (ServiceSocket == INVALID_SOCKET) {
		ErrorHandling("ERROR");
		system("pause");
		exit(-1);
	}

	cout << "socket create success!" << endl;
	memset(&seraddr, 0, sizeof(seraddr));
	seraddr.sin_family = AF_INET;
	seraddr.sin_addr.s_addr = htonl(INADDR_ANY);
	seraddr.sin_port = htons(atoi(port));
	
	

	if (bind(ServiceSocket, (SOCKADDR*)&seraddr,sizeof(seraddr)) == SOCKET_ERROR)
		ErrorHandling("Bind Error!");
	if (listen(ServiceSocket, 5) == SOCKET_ERROR)
		ErrorHandling("Linsten ERROR");
	cout << "bind()sucess" << endl;

	while (1) {//问题就在这里，程序一直返回socket_error
		if (ClientSocket = accept(ServiceSocket, (sockaddr*)&clnadr, &ClientAdrSize)==SOCKET_ERROR)
			continue;
		else {
			cout << "connected!" << endl;
			recv(ServiceSocket, message, BUF_SIZE, 0);
			break;
		}
	}
	cout << message;
	

	system("pause");


	return(0);
}

客户端代码：

#include<iostream>
#include<winsock2.h>
#include<string.h>
using namespace std;

void ErroHandling(char *ErrorLine) {
	cout << ErrorLine << endl;
	system("pause");
	exit(-1);
}


   int main() {
	int const BUF_SIZE=100;
	int strlen_;
	char message[BUF_SIZE];
	char* ipaddr = "192.168.1.105";
	char* port = "8801";

	WSADATA	wsadata;
	SOCKET	ServerSocket;
	SOCKADDR_IN	SerAddr;

	if (WSAStartup(MAKEWORD(2, 2), &wsadata) != 0)
		ErroHandling("WSAstartup Error");

	fgets(message, BUF_SIZE, stdin);
	cout << message;
	ServerSocket = socket(PF_INET, SOCK_STREAM, 0);
	memset(&SerAddr, 0, sizeof(SerAddr));
	SerAddr.sin_family = AF_INET;
	SerAddr.sin_addr.s_addr = inet_addr(ipaddr);
	SerAddr.sin_port = htons(atoi(port));
	while (1) {
		if (connect(ServerSocket, (sockaddr*)&SerAddr, sizeof(SerAddr)) == SOCKET_ERROR)
			continue;
		else {
			cout << "connected!" << endl;
			send(ServerSocket, message, strlen(message), 0);//这里发送消息
			break;
		}
			
	}
	system("pause");
	strlen_ = recv(ServerSocket, message, BUFSIZ - 1, 0);//接收服务端返回的消息
	

	closesocket(ServerSocket);
	WSACleanup();
	system("pause");
	return(0);
}

求大腿帮助~help~

[还有多远]

赋值操作符=的优先级小于比较操作符==，server accept的if，试试加个括号？

if ((ClientSocket = accept(ServiceSocket, (sockaddr*)&clnadr, &ClientAdrSize))==SOCKET_ERROR)

[oyljerry]

打印一下accept的返回值就知道是否有返回。以及你的后续处理是否正确

[shenyi0106]

int ClientAdrSize = sizeof(sockaddr_in);

[shenyi0106]

SOCKET accept( _In_ SOCKET s, _Out_ struct sockaddr *addr, _Inout_ int *addrlen ); Parameters s [in] A descriptor that identifies a socket that has been placed in a listening state with the listen function. The connection is actually made with the socket that is returned by accept. addr [out] An optional pointer to a buffer that receives the address of the connecting entity, as known to the communications layer. The exact format of the addr parameter is determined by the address family that was established when the socket from the sockaddr structure was created. addrlen [in, out] An optional pointer to an integer that contains the length of structure pointed to by the addr parameter.

[kakabulusi]

#include<iostream>