bind（）的失败与Windows套接字错误10049 [英] bind() fails with windows socket error 10049

问题描述

我试图让使用IPv6和UDP在C客户机/服务器程序。当程序绑定插座它返回WSAError 10049.我知道，这是与ADRESS名称的问题，但看不出什么问题。我希望有人可以提供帮助。

 结构体sockaddr_in6服务器，客户端;
SOCKET袜子;
字符缓冲区[BUFFERSIZE]
LPTSTR recvBuff [1024];
DWORD recvBuffLen = 1024UL;
INT LEN = sizeof的（客户端）;WORD wVersionRequested;
WSADATA WSADATA;
wVersionRequested = MAKEWORD（1,1）;
调用WSAStartup（wVersionRequested，＆安培; WSADATA）;袜子=插座（AF_INET6，SOCK_DGRAM，0）;
如果（袜子℃，）
    错误（Fehler BEIM Anlegen DES套接字）;server.sin6_family = AF_INET6;
server.sin6_port = htons（6000）;
server.sin6_addr = IN6ADDR_ANY;如果（绑定（袜子，（结构sockaddr *）及服务器的sizeof（服务器））== -1）
    错误（Fehler BEIM binden DES套接字）;
 

解决方案

出现此错误，当你试图命名本地套接字（指定本地地址和端口号）与绑定，以无效本地计算机。地址

您应该使用 PF_INET 在这里，而不是 AF_INET 。它们具有相同的价值，但你不指定地址族 AF 在这里，你指定一个协议族 PF 。这仅仅是一个风格的建议。

我会建议 memset的零以下数组，结构：

 结构体sockaddr_in6服务器，客户端;
SOCKET袜子;
字符缓冲区[BUFFERSIZE]
LPTSTR recvBuff [1024];
 

I try to make a client/server program in C with IPv6 and UDP. When the program binds the socket it return the WSAError 10049. I know that this is a problem with the adress name but don't see whats the problem. I hope someone can help.

struct sockaddr_in6 server, client;
SOCKET sock;
char buffer[BUFFERSIZE];
LPTSTR recvBuff[1024];
DWORD recvBuffLen = 1024UL;
int len = sizeof(client);

WORD wVersionRequested;
WSADATA wsaData;
wVersionRequested = MAKEWORD(1,1);
WSAStartup(wVersionRequested, &wsaData);

sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (sock < 0)
    error("Fehler beim Anlegen des Sockets");

server.sin6_family = AF_INET6;
server.sin6_port = htons(6000);
server.sin6_addr = in6addr_any;

if (bind(sock, (struct sockaddr *) &server, sizeof(server)) == -1)
    error("Fehler beim binden des Sockets");

解决方案

This error occurs when you are trying to name the local socket (assign local address and port number) with bind, to an address that is not valid for the local computer.

You should use PF_INET here instead of AF_INET. They have the same value, but you're not specifying an address family AF here, you're specifying a protocol family PF. This is just a style recommendation.

I would suggest to memset zero the below arrays,structures:

struct sockaddr_in6 server, client;
SOCKET sock;
char buffer[BUFFERSIZE];
LPTSTR recvBuff[1024];

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