Residential IP

#include <iostream>
    #include <stdio.h>
    #include <string>
    #include <Windows.h>
    #include "curl/curl.h"
    #pragma comment(lib, "libcurl.lib")
    using namespace std;
    static size_t write_buff_data(char* buffer, size_t size, size_t nitems, void* outstream)
    {
        memcpy(outstream, buffer, nitems * size);
        return nitems * size;
    }

    // http protocol
    int GetHTTPFunc(char* url, char* buff)
    {
        CURL* curl;
        CURLcode res;
        curl = curl_easy_init();
        if (curl)
        {
            curl_easy_setopt(curl, CURLOPT_PROXY, "http://hostname:port");     // hostname:port =
            curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, "username:password"); // sub-account and password
            curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)buff);
            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_buff_data);
            curl_easy_setopt(curl, CURLOPT_URL, url);
            curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, 10L);
            curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 50L);
            curl_easy_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, 2000000L);
            res = curl_easy_perform(curl);
            curl_easy_cleanup(curl);
            if (res == CURLE_OK) {
                return res;
            }
            else {
                printf("http status code:%d", res);
                MessageBox(NULL, TEXT("Get IP Error"), TEXT("assistant"), MB_ICONINFORMATION | MB_YESNO);
            }
        }
        return res;
    }

      // Socks5 protocol
    int GetSocks5Func(char* url, char* buff)
    {
        CURL* curl;
        CURLcode res;
        curl = curl_easy_init();
        if (curl)
        {
        curl_easy_setopt(curl, CURLOPT_PROXY, "socks5://hostname:port");    // hostname:port =
        curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, "username:password");  //sub-account and password
        curl_easy_setopt(curl, CURLOPT_SOCKS5_AUTH, CURLAUTH_SOCKS5_USERPWD);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)buff);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_buff_data);     // Callback
        curl_easy_setopt(curl, CURLOPT_URL, url);
        curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, 10L);
        curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 50L);
        curl_easy_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, 2000000L);
        res = curl_easy_perform(curl);
        curl_easy_cleanup(curl);

        if (res == CURLE_OK) {
            return res;
        }
        else {
            printf("status code:%d", res);
            MessageBox(NULL, TEXT("Get IP Error"), TEXT("assistant"), MB_ICONINFORMATION | MB_YESNO);
        }
        }
        return res;
    }

    int func()
    {
        string strUrl = "ipinfo.io";
        char* buff = (char*)malloc(1024 * 1024);
        memset(buff, 0, 1024 * 1024);

        //HTTP proxies
        memset(buff, 0, 1024 * 1024);
        GetHTTPFunc((char*)strUrl.c_str(), buff);
        printf("Http results:%s", buff);

        //Socks5 proxies
        memset(buff, 0, 1024 * 1024);
        GetSocks5Func((char*)strUrl.c_str(), buff);
        printf("Socks5 result:%s", buff);
        free(buff);
        return 0;
    }

    int main()
    {
        return func();
    }