C/C++实现HTTPS通信（抓取百度页面）

最新推荐文章于 2025-02-23 16:36:02 发布

ZRXSLYG

最新推荐文章于 2025-02-23 16:36:02 发布

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分类专栏： OPENSSL

本文链接：https://blog.youkuaiyun.com/ZRXSLYG/article/details/81395640

版权

#include <WINSOCK2.H> 

#include <openssl/ssl.h>
#include <openssl/err.h>

#include <iostream>
#include <sstream>

#pragma comment(lib,"libeay32.lib")
#pragma comment(lib,"ssleay32.lib")
#pragma comment(lib,"ws2_32.lib")


using namespace std;

int main()
{
	//加载SSL错误信息 
	SSL_load_error_strings();
	//添加SSL的加密/HASH算法 
	SSLeay_add_ssl_algorithms();
	//客户端，服务端选择SSLv23_server_method() 
	const SSL_METHOD *meth = SSLv23_client_method();
	//建立新的SSL上下文 
	SSL_CTX* ctx = SSL_CTX_new(meth);
	if(ctx == NULL)
	{
		ERR_print_errors_fp(stderr);
		cout<<"SSL_CTX_new error !";
		return -1;
	}
	
	WSADATA wsaData;
	if(WSAStartup(MAKEWORD(2,2),&wsaData)!=0)
	{
		return -1;
	}
	SOCKET client = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
	if(client == INVALID_SOCKET)
	{
		cout<<"socket error !";
		return -1;
	}
	
	string host = "www.bai