c实现动态域名

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>

// DDNS更新URL
#define DDNS_UPDATE_URL "http://your-ddns-provider.com/update"

// 用户名和密码
#define DDNS_USERNAME "your-username"
#define DDNS_PASSWORD "your-password"

// 更新DNS记录的函数
size_t write_callback(void *ptr, size_t size, size_t nmemb, void *userdata) {
    char *response = (char *)ptr;
    printf("Response: %s\n", response);
    return size * nmemb;
}

int main() {
    CURL *curl;
    CURLcode res;

    curl_global_init(CURL_GLOBAL_DEFAULT);
    curl = curl_easy_init();
    if(curl) {
        // 设置URL
        curl_easy_setopt(curl, CURLOPT_URL, DDNS_UPDATE_URL);

        // 设置用户名和密码
        curl_easy_setopt(curl, CURLOPT_USERNAME, DDNS_USERNAME);
        curl_easy_setopt(curl, CURLOPT_PASSWORD, DDNS_PASSWORD);

        // 设置回调函数
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);

        // 执行请求
        res = curl_easy_perform(curl);
        if(res != CURLE_OK)
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));

        // 清理
        curl_easy_cleanup(curl);
    }

    curl_global_cleanup();
    return 0;
}