c++ libcurl 使用

cpp_libcurl.cpp

// studyLibCurl.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <curl/curl.h>
#include <iostream>
#include <string>


size_t offset = 0;

size_t write_data(void *buffer, size_t size, size_t nmemb, void *userp)
{
	size_t realSize = size * nmemb;
	memcpy((char *)userp + offset,buffer,realSize);
	offset += realSize;
	return realSize;
}

int main(int argc,char *argv[])
{
	char content[CURL_MAX_WRITE_SIZE] = {0};

	curl_global_init(CURL_GLOBAL_ALL);
	CURL *easyhandle = curl_easy_init();

	curl_easy_setopt(easyhandle, CURLOPT_URL, argv[1]);
	

	curl_easy_setopt(easyhandle, CURLOPT_TIMEOUT, 20);
	curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, "yuhuiwebclient/0.1");
	curl_easy_setopt(easyhandle, CURLOPT_WRITEFUNCTION, write_data);
	size_t received = curl_easy_setopt(easyhandle, CURLOPT_WRITEDATA, (void *)content);

	CURLcode success = curl_easy_perform(easyhandle);

	curl_easy_cleanup(easyhandle);

	printf("%s\n",content);

	

    return 0;
}