Wip chunked decoding

+ Need to test normal body parsing
+ path_is_valid() renamed eval_file_type()
+ replaced atoi with strtol/strtoul

srcs/utils.hpp

@@ -5,19 +5,32 @@
 # include <vector>
 # include <string>
 # include <sstream>
-# include <cstdlib>		// atoi
+# include <cstdlib>		// strtol, strtoul
+# include <climits>		// LONG_MAX
+# include <cerrno>		// errno
 # include <sys/stat.h>  // stat()
 # include <cctype>		// tolower
 # include <algorithm>	// transform
+# include <cstdio>		// perror
 
 # define CR "\r"
 # define LF "\n"
 # define CRLF CR LF
+# define CRLF_SIZE 2
+# define NPOS std::string::npos
 
-# define IS_FILE 2
-# define IS_DIR 1
-# define IS_OTHER 0
+/* Equivalent for end of http header size :
+**	std::string(CRLF CRLF).size();
+**	sizeof(CRLF CRLF) - 1;
+**	CRLF_SIZE*2
+*/
 
+enum file_type
+{
+	IS_OTHER,
+	IS_FILE,
+	IS_DIR
+};
 
 enum http_method
 {
@@ -46,7 +59,7 @@ std::string					itos(int n);
 std::string					trim(std::string str, char c);
 http_method					str_to_http_method(std::string &str);
 std::string					http_methods_to_str(unsigned int methods);
-int							path_is_valid(std::string path);
+file_type					eval_file_type(const std::string &path);
 void						replace_all_substr(std::string &str, const std::string &ori_substr, const std::string &new_substr);
 std::string					str_tolower(std::string str);
 void						del_line_in_str(std::string * str, size_t pos, std::string delim);