无法连接winsock-c上出现错误10049
我尝试在我家本地网络的两台计算机之间运行服务器客户端 我失败了,客户端出现错误10049。我认为这是防火墙的问题,所以我试着在我的计算机上运行它(线程),但仍然是相同的问题。 我的输出在函数“connect”处失败: 错误-连接失败。sockfd为188,errno为34,WSA为10049 这是我的密码 附录c:无法连接winsock-c上出现错误10049,c,eclipse,windows,client-server,winsock,C,Eclipse,Windows,Client Server,Winsock,我尝试在我家本地网络的两台计算机之间运行服务器客户端 我失败了,客户端出现错误10049。我认为这是防火墙的问题,所以我试着在我的计算机上运行它(线程),但仍然是相同的问题。 我的输出在函数“connect”处失败: 错误-连接失败。sockfd为188,errno为34,WSA为10049 这是我的密码 附录c: #include "client.h" #include "server.h" int main() { DWORD dwThreadID1, dwThreadID2;
#include "client.h"
#include "server.h"
int main()
{
DWORD dwThreadID1, dwThreadID2;
CreateThread(
NULL, // default security attributes
0, // default stack size
(LPTHREAD_START_ROUTINE) apserver,
NULL, // no thread function arguments
0, // default creation flags
&dwThreadID1); // receive thread identifier
CreateThread(
NULL, // default security attributes
0, // default stack size
(LPTHREAD_START_ROUTINE) apClient,
NULL, // no thread function arguments
0, // default creation flags
&dwThreadID2); // receive thread identifier
while(1)
{}
return 0;
}
服务器c:
#include "server.h"
int socketBind(int sockfd, int port){
struct sockaddr_in serv_addr;
ZeroMemory((char*) &serv_addr, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(port);
if ( bind(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0 ){
// we can check errno for exact ERROR
printf("bind failed with errno %d\n",errno);fflush(NULL);
return ERROR;
}
if ( listen(sockfd, 100) == -1 ){
return ERROR;
}
return 1;
}
DWORD WINAPI apserver(LPVOID lpParam)
{
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2,2), &wsaData) == SOCKET_ERROR) {
printf ("Error initialising WSA.\n");
return -1;
}
int sockfd; // server's listening socket's descriptor id
int port = 4997;
sockfd = socket(AF_INET, SOCK_STREAM, 0);
while ( sockfd < 0 ){ // ERROR
printf("Listener socket creation failed with:%d, errno is %d\n",sockfd,errno);fflush(NULL);
sockfd = socket(AF_INET, SOCK_STREAM, 0);
}
if ( socketBind(sockfd, port) == ERROR ){
printf("Socket bind failed with errno=%d\n",errno);fflush(NULL);
close(sockfd);
return ERROR;
}
printf("Starting to listen to other USERS!\n");fflush(NULL);
struct sockaddr_in cli_addr;
int clilen = sizeof(cli_addr); // length of address
// accept() returns the socket that will be used for Control Connection with the accepted client
printf("*************Waiting for other USERS************\n");fflush(NULL);
int newsockfd = accept(sockfd, (struct sockaddr *)&cli_addr, &clilen);
int readLength;
char command[(128+1)];
while(1)
{
ZeroMemory(command, sizeof(command));
readLength = read(newsockfd, command, 128+1);
if(readLength == 0)
{
continue;
}
if(readLength > 0)
{
printf(" here should be API's func to command %s", command);fflush(NULL);
}
else
{
close(sockfd);
close(newsockfd);
WSACleanup();
printf("Read failed with errno:%d\n",errno);fflush(NULL);
return ERROR;
}
}
close(sockfd);
close(newsockfd);
WSACleanup();
return 1;
}
#包括“server.h”
int-socketBind(int-sockfd,int-port){
服务地址中的结构sockaddr\u;
零内存((char*)&serv_addr,sizeof(serv_addr));
serv_addr.sin_family=AF_INET;
serv_addr.sin_addr.s_addr=INADDR_ANY;
serv_addr.sin_port=htons(端口);
if(bind(sockfd,(struct sockaddr*)&serv_addr,sizeof(serv_addr))<0){
//我们可以检查errno是否存在确切的错误
printf(“绑定失败,错误号为%d\n”,错误号);fflush(NULL);
返回误差;
}
如果(监听(sockfd,100)=-1){
返回误差;
}
返回1;
}
DWORD WINAPI apserver(LPVOID lpParam)
{
WSADATA WSADATA;
if(WSAStartup(MAKEWORD(2,2),&wsaData)=套接字错误){
printf(“初始化WSA时出错。\n”);
返回-1;
}
int sockfd;//服务器的侦听套接字的描述符id
int端口=4997;
sockfd=套接字(AF_INET,SOCK_STREAM,0);
而(sockfd<0){//错误
printf(“侦听器套接字创建失败,错误为:%d,错误号为%d\n”,sockfd,错误号);fflush(NULL);
sockfd=套接字(AF_INET,SOCK_STREAM,0);
}
if(socketBind(sockfd,端口)=错误){
printf(“套接字绑定失败,错误号=%d\n”,错误号);fflush(NULL);
关闭(sockfd);
返回误差;
}
printf(“开始侦听其他用户!\n”);fflush(NULL);
cli_addr中的结构sockaddr_;
int clilen=sizeof(cli_addr);//地址长度
//accept()返回将用于与接受的客户端进行控制连接的套接字
printf(“*************正在等待其他用户*********\n”);fflush(NULL);
int newsockfd=accept(sockfd,(struct sockaddr*)&cli\u addr,&clilen);
int readLength;
char命令[(128+1)];
而(1)
{
零内存(命令,sizeof(命令));
readLength=read(newsockfd,命令,128+1);
如果(readLength==0)
{
继续;
}
如果(读取长度>0)
{
printf(“这里应该是API的func to命令%s”,command);fflush(NULL);
}
其他的
{
关闭(sockfd);
关闭(newsockfd);
WSACleanup();
printf(“读取失败,错误号:%d\n”,错误号);fflush(NULL);
返回误差;
}
}
关闭(sockfd);
关闭(newsockfd);
WSACleanup();
返回1;
}
客户c:
#include "client.h"
int verifyWrite(int sockfd, char* command){
int size = strlen(command);
int i=0, x=0;
for(i=0;i<size;){
x = write(sockfd, command, size);
if(x < 0){
return ERROR;
}
if(x >= 0) {
i += x;
}
}
return 0;
}
int sendToAll(char* message, int sockfd)
{
if ( verifyWrite(sockfd, message) < 0 )
{
printf("error while sending message\n");fflush(NULL);
}
return 0;
}
DWORD WINAPI apClient(LPVOID lpParam)
{
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2,2), &wsaData) == SOCKET_ERROR) {
printf ("Error initialising WSA.\n");
return -1;
}
int port,sockfd;
struct sockaddr_in serv_addr;
sockfd = socket(AF_INET, SOCK_STREAM, 0); //creating control connection
while(sockfd < 0){
printf("error - sockfd = %d\n",sockfd);fflush(NULL);
sockfd = socket(AF_INET, SOCK_STREAM, 0);
}
port = 4997;
serv_addr.sin_addr.s_addr = inet_addr("192.168.x.x");
ZeroMemory((char*)&serv_addr, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(port);
while(connect(sockfd,(struct sockaddr*)&serv_addr,sizeof(serv_addr)) < 0){
printf("error - connect failed. sockfd is %d, errno is %d, WSA is %d\n",sockfd,errno,WSAGetLastError());fflush(NULL);
}
printf("\n opened connection to %s\n", "192.168.x.x");fflush(NULL);
int i = 0;
while(i< 6)
{
sendToAll("just a message", sockfd);
i++;
}
WSACleanup();
return 0;
}
#包括“client.h”
int verifyWrite(int sockfd,char*命令){
int size=strlen(命令);
int i=0,x=0;
对于(i=0;i=0){
i+=x;
}
}
返回0;
}
int sendToAll(字符*消息,int sockfd)
{
如果(验证写入(sockfd,消息)<0)
{
printf(“发送消息时出错”);fflush(NULL);
}
返回0;
}
DWORD WINAPI apClient(LPVOID lpParam)
{
WSADATA WSADATA;
if(WSAStartup(MAKEWORD(2,2),&wsaData)=套接字错误){
printf(“初始化WSA时出错。\n”);
返回-1;
}
int端口,sockfd;
服务地址中的结构sockaddr\u;
sockfd=socket(AF_INET,SOCK_STREAM,0);//正在创建控制连接
而(sockfd<0){
printf(“错误-sockfd=%d\n”,sockfd);fflush(NULL);
sockfd=套接字(AF_INET,SOCK_STREAM,0);
}
端口=4997;
serv_addr.sin_addr.s_addr=inet_addr(“192.168.x.x”);
零内存((char*)&serv_addr,sizeof(serv_addr));
serv_addr.sin_family=AF_INET;
serv_addr.sin_port=htons(端口);
而(connect(sockfd,(struct sockaddr*)&serv_addr,sizeof(serv_addr))<0){
printf(“错误-连接失败。sockfd是%d,errno是%d,WSA是%d\n”),sockfd,errno,WSAGetLastError();fflush(NULL);
}
printf(“\n打开了与%s的连接\n”,“192.168.x.x”);fflush(NULL);
int i=0;
而(i<6)
{
sendToAll(“只是一条消息”,sockfd);
i++;
}
WSACleanup();
返回0;
}
Windows套接字错误10049
是WSAEADDRNOTAVAIL
,如果您看到
连接
。。。当远程地址或端口对远程计算机无效时(例如,地址或端口0)
原因很简单:
serv_addr.sin_addr.s_addr = inet_addr("192.168.x.x");
ZeroMemory((char*)&serv_addr, sizeof(serv_addr));
设置要连接的地址后,您可以清除该结构。您知道
192.168.x.x
范围内的地址是专用的,因此网络之外的任何其他人都无法连接该地址,因此无需对其进行审查。:)是的,我知道,但我看到这里的每个人都在审查,所以我想也许我错了:非常感谢。我读了它,只是没有注意到它的记忆。