socket小问题求解

[矫情狗_____]

检查一下居然返回了-1...好奇怪...怎么解决?????

#include <iostream>
#include <winsock2.h>
#pragma comment(lib, "WSOCK32.lib")
using namespace std;
#define Post 5266

int main()
{
	int ID_1, ID_2;
	ID_1 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	cout << "Socket ID: " << ID_1 << endl;         //为什么这里返回了-1????
         return 0;
}

原本代码如下，执行到这就执行不下去了...

#include <iostream>
#include <winsock2.h>
#pragma comment(lib, "WSOCK32.lib")
using namespace std;
#define Post 5266

int main()
{
	int ID_1, ID_2;
	if((ID_1 = socket(AF_INET, SOCK_STREAM, 0)) < 0)
	{
		cout << "Socket error!" << endl;
		exit(1);
	}
	else
	{
		cout << "Socket ID: " << ID_1;
	}
	struct sockaddr_in addr;
	addr.sin_family = AF_INET;
	addr.sin_port = Post;
	addr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
	if((bind(ID_1, (struct sockaddr *)&addr, sizeof(struct sockaddr))) < 0)
	{
		cout << "Socket bind error" << endl;
		exit(1);
	}
	else
	{
		cout << "PORT: " << Post << endl;
	}
	if((listen(ID_1, 5)) < 0)
	{
		cout << "listen error" << endl;
		exit(1);
	}
	else
	{
		cout << "Listenning..." << endl;
	}
	int temp = sizeof(struct sockaddr_in);
	if((ID_2 = accept(ID_1, (struct sockaddr *)&addr, &temp)) < 0)
	{
		cout << "Link error" << endl;
	}
	else
	{
		cout << "New socket id: " << ID_2 << endl;
	}
	return 0;
}

[矫情狗_____]

已经解决了...socket之前没初始化...

[pengfoo]

ID_1 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
返回小于0的值表示建立套接字失败。。

.socket之前没初始化？不知道你进行怎么样的初始化？linux下貌似没什么初始化的呀？

[super_admi]

-1 == SOCKET_ERROR

[super_admi]

[Quote=引用 2 楼 的回复:]

ID_1 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
返回小于0的值表示建立套接字失败。。

.socket之前没初始化？不知道你进行怎么样的初始化？linux下貌似没什么初始化的呀？
[/Quote]

“WSOCK32.lib”，明显是Win32下的。

[kgzhw]

没初始化是说没WSAStartup吧