c语言curl实现前端请求（get post等）

#include <stdio.h>
#include <stdlib.h>
#include <curl/curl.h>
#include <string.h>
 
struct MemoryStruct {
	char *memory;
	size_t size;
 
};
 
static size_t WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
 
	size_t realsize = size * nmemb;
	struct MemoryStruct *mem = (struct MemoryStruct*) userp;
	mem->memory = realloc(mem->memory, mem->size + realsize + 1);
	if (mem->memory == NULL) {
 
		/* out of memory! */
 
		printf("not enough memory (realloc returned NULL)\n");
 
		return 0;
 
	}
 
	memcpy(&(mem->memory[mem->size]), contents, realsize);
	mem->size += realsize;
	mem->memory[mem->size] = 0;
	return realsize;
 
}
 
int httpsget(void)
 
{
 
	CURL *curl = NULL;
	CURLcode res;
	struct MemoryStruct chunk;
	chunk.memory = malloc(1); /* will be grown as needed by the realloc above */
	chunk.size = 0; /* no data at this point */
	curl_global_init(CURL_GLOBAL_ALL);
	/* get a curl handle */
	curl = curl_easy_init();
	if (!curl) {
		return -1;
	}
 
	/*设置easy handle属性*/
	/* specify URL */
	curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "GET");
	curl_easy_setopt(curl, CURLOPT_URL, "https://www.baidu.com");
	/* Define our callback to get called when there's data to be written */
	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
	/* Set a pointer to our struct to pass to the callback */
	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
	/* set commom option */
	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
	/*执行数据请求*/
	res = curl_easy_perform(curl);
 
	if (res != CURLE_OK) {
 
		fprintf(stderr, "res=%d curl_easy_perform() failed: %s\n",
 
				res,curl_easy_strerror(res));
 
	}
 
// 释放资源
	free(chunk.memory);
	curl_easy_cleanup(curl);
	curl_global_cleanup();
	return 0;
 
}
 
int main(void) 
{
 
	httpsget();
	return 0;
 
}

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