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| #include <curl/curl.h>
#include <stdio.h>
#include <string.h>
CURL *curl;
CURLcode res;
size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
{
if (strlen((char *)stream) + strlen((char *)ptr) > 999999) return 0;
strcat(stream, (char *)ptr);
// printf("%s\n", ptr);
return nmemb;
}
char *down_file(char *url)
{
static char str[1000000];
int ret;
struct curl_slist *slist = NULL;
slist = curl_slist_append(slist, "Connection: Keep-Alive"); //http长连接
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);
strcpy(str, "");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); // 显示详细信息
curl_easy_setopt(curl, CURLOPT_URL, url); //设置下载地址
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 3); //设置超时时间
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); //设置写数据的函数
curl_easy_setopt(curl, CURLOPT_WRITEDATA, str); //设置写数据的变量
res = curl_easy_perform(curl); //执行下载
str[999999] = '\0';
if (CURLE_OK != res) //判断是否下载成功
return NULL;
return str;
}
int main()
{
char url[200];
curl = curl_easy_init(); //对curl进行初始化
char *result;
printf("Please Input a url: ");
while (scanf("%s", url) != EOF) {
result = down_file(url);
if (result)
puts(result);
else
puts("Get Error!");
printf("\nPlease Input a url: ");
}
curl_easy_cleanup(curl); //释放curl资源
return 0;
}
|
