#ifndef HTTPENCODE_H#define HTTPENCODE_H#include <unistd.h>#define REQ_URL_P1_FMT "GET %s?info_hash=%s&peer_id=%s&port=%d&key=%s"#define REQ_URL_P1A_FMT "GET %s&info_hash=%s&peer_id=%s&port=%d&key=%s"#define REQ_URL_P2_FMT "%s&upload=%llu&downloaded=%llu\&left=%llu&compact=1&event=%s&numwant=%d  HTTP/1.0"#define REQ_URL_P3_FMT "%s&upload=%llu&downloaded=%llu\&left=%llu&compact=1&numwant=%d HTTP/1.0"char *Http_url_encode(char *s, char *b, size_t n);int Http_url_analyse(char *url, char *host, int *port, char *path);size_t Http_split(char *b, size_t n, char **pd, size_t * dlen);int Http_reponse_code(char *b, size_t n);int Http_get_header(const char *b, int n, char *header, char *v);#endif