如何优雅地使用c语言编写爬虫

#include<cspider/spider.h>

/*
  自定义的解析函数，d为获取到的html页面字符串
*/
void p(cspider_t *cspider, char *d, void *user_data) {

 char *get[100];
 //xpath解析html
 int size = xpath(d, "//body/div[@class='wrap']/div[@class='sort-column area']/div[@class='column-bd cfix']/ul[@class='st-list cfix']/li/strong/a", get， 100);

 int i;
 for (i = 0; i < size; i++) {
 //将获取到的电影名称，持久化
  saveString(cspider, get[i]);
 }

}
/*
  数据持久化函数，对上面解析函数中调用的saveString()函数传入的数据，进行进一步的保存
*/
void s(void *str, void *user_data) {
 char *get = (char *)str;
 FILE *file = (FILE*)user_data;
 fprintf(file, "%s\n", get);
 return;
}

int main() {
 //初始化spider
 cspider_t *spider = init_cspider();
 char *agent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0";
 //char *cookie = "bid=s3/yuH5Jd/I; ll=108288; viewed=1130500_24708145_6433169_4843567_1767120_5318823_1899158_1271597; __utma=30149280.927537245.1446813674.1446983217.1449139583.4; __utmz=30149280.1449139583.4.4.utmcsr=accounts.douban.com|utmccn=(referral)|utmcmd=referral|utmcct=/login; ps=y; ue=965166527@qq.com; dbcl2=58742090:QgZ2PSLiDLQ; ck=T9Wn; push_noty_num=0; push_doumail_num=7; ap=1; __utmb=30149280.0.10.1449139583; __utmc=30149280";

 //设置要抓取页面的url
 cs_setopt_url(spider, "so.tv.sohu.com/list_p1100_p20_p3_u5185_u5730_p40_p5_p6_p77_p80_p9_2d1_p101_p11.html");
 //设置user agent
 cs_setopt_useragent(spider, agent);
 //cs_setopt_cookie(spider, cookie);
 //传入解析函数和数据持久化函数的指针
 cs_setopt_process(spider, p, NULL);
 //s函数的user_data指针指向stdout
 cs_setopt_save(spider, s, stdout);
 //设置线程数量
 cs_setopt_threadnum(spider, DOWNLOAD, 2);
 cs_setopt_threadnum(spider, SAVE, 2);
 //FILE *fp = fopen("log", "wb+");
 //cs_setopt_logfile(spider, fp);
 //开始爬虫
 return cs_run(spider);
}