写一个libcurl请求https://www.baidu.com的带证书请求超级优化 速度最快的封装get和post例子

好的，以下是一个使用libcurl进行https请求的示例代码，包含带证书请求、超时设置等优化：

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

#define TIMEOUT 5

// 带证书的https请求
int https_request_with_cert(const char* url, const char* cert_path, const char* key_path, const char* ca_path, char** response) {
    CURL* curl;
    CURLcode res;
    struct curl_slist* headers = NULL;
    long http_code;
    char error_buffer[CURL_ERROR_SIZE];
    long timeout = TIMEOUT;

    curl = curl_easy_init();
    if (curl) {
        // 设置请求的url
        curl_easy_setopt(curl, CURLOPT_URL, url);
        // 设置超时时间
        curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout);
        // 设置CA证书路径
        curl_easy_setopt(curl, CURLOPT_CAINFO, ca_path);
        // 设置客户端证书路径
        curl_easy_setopt(curl, CURLOPT_SSLCERT, cert_path);
        // 设置客户端证书的私钥路径
        curl_easy_setopt(curl, CURLOPT_SSLKEY, key_path);
        // 设置私钥的密码
        curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "password");
        // 设置是否验证主机名
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2L);
        // 设置是否验证证书
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
        // 设置错误信息存储的缓冲区
        curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error_buffer);
        // 设置响应头信息的回调函数
        curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, NULL);
        // 设置响应头信息的数据结构
        curl_easy_setopt(curl, CURLOPT_HEADERDATA, NULL);
        // 设置响应内容的回调函数
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
        // 设置响应内容的数据结构
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, response);

        // 执行请求操作
        res = curl_easy_perform(curl);
        if (res != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
            curl_easy_cleanup(curl);
            return -1;
        }

        // 获取响应状态码
        curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);

        // 检查http状态码
        if (http_code != 200) {
            fprintf(stderr, "http status code is not 200: %ld\n", http_code);
            curl_easy_cleanup(curl);
            return -1;
        }

        // 释放curl资源
        curl_easy_cleanup(curl);
        return 0;
    } else {
        fprintf(stderr, "curl init failed\n");
        return -1;
    }
}

// 封装get请求
int https_get(const char* url, char** response) {
    return https_request_with_cert(url, "client.crt", "client.key", "ca.crt", response);
}

// 封装post请求
int https_post(const char* url, const char* data, char** response) {
    CURL* curl;
    CURLcode res;
    struct curl_slist* headers = NULL;
    long http_code;
    char error_buffer[CURL_ERROR_SIZE];
    long timeout = TIMEOUT;

    curl = curl_easy_init();
    if (curl) {
        // 设置请求的url
        curl_easy_setopt(curl, CURLOPT_URL, url);
        // 设置超时时间
        curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout);
        // 设置CA证书路径
        curl_easy_setopt(curl, CURLOPT_CAINFO, "ca.crt");
        // 设置客户端证书路径
        curl_easy_setopt(curl, CURLOPT_SSLCERT, "client.crt");
        // 设置客户端证书的私钥路径
        curl_easy_setopt(curl, CURLOPT_SSLKEY, "client.key");
        // 设置私钥的密码
        curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "password");
        // 设置是否验证主机名
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2L);
        // 设置是否验证证书
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
        // 设置错误信息存储的缓冲区
        curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error_buffer);
        // 设置响应头信息的回调函数
        curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, NULL);
        // 设置响应头信息的数据结构
        curl_easy_setopt(curl, CURLOPT_HEADERDATA, NULL);
        // 设置响应内容的回调函数
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
        // 设置响应内容的数据结构
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, response);
        // 设置post数据
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);

        // 执行请求操作
        res = curl_easy_perform(curl);
        if (res != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
            curl_easy_cleanup(curl);
            return -1;
        }

        // 获取响应状态码
        curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);

        // 检查http状态码
        if (http_code != 200) {
            fprintf(stderr, "http status code is not 200: %ld\n", http_code);
            curl_easy_cleanup(curl);
            return -1;
        }

        // 释放curl资源
        curl_easy_cleanup(curl);
        return 0;
    } else {
        fprintf(stderr, "curl init failed\n");
        return -1;
    }
}

使用示例：

int main() {
    char* response = NULL;
    int ret;

    // 发送get请求
    ret = https_get("https://www.baidu.com", &response);
    if (ret == 0) {
        printf("response: %s\n", response);
        free(response);
    } else {
        printf("https get request failed\n");
    }

    // 发送post请求
    char* data = "key1=value1&key2=value2";
    ret = https_post("https://www.baidu.com", data, &response);
    if (ret == 0) {
        printf("response: %s\n", response);
        free(response);
    } else {
        printf("https post request failed\n");
    }

    return 0;
}

注意：以上示例代码中的证书路径需要根据实际情况进行修改。