#include <stdlib.h>
#include <string.h>

static size_t append(char *data, size_t size, size_t nmemb, char **res)
{
	size_t realsize = size * nmemb;
	size_t res_len = *res ? strlen(*res) : 0;
	*res = realloc(*res, res_len + realsize + 1);
	strlcpy(&(*res)[res_len], data, realsize + 1);
	return realsize;
}