fill basic ZIP header format

ZipDefine.h

@@ -2,6 +2,11 @@
 
 #include <cstdint>
 
+const static uint32_t PK_SIGNATURE_LF_HEADER = 0x04034b50;   // PK + 0x0403
+const static uint32_t PK_SIGNATURE_CENT_DIR = 0x02014b50;  // PK + 0x0201
+const static uint32_t PK_SIGNATURE_EO_CDR = 0x06054b50;     // PK + 0x0605
+const static uint16_t METHOD_UNCOMPRESSED = 0;
+
 /**   Overall .ZIP file format:
 
       [local file header 1]   -> "PK" + 0x4b50 + ...
@@ -61,8 +66,8 @@ constexpr int LOCAL_FILE_HEADER_BYTE = 30;
       uint16_t lengthOfFileName;
       uint16_t lengthOfExtraField;
 
-      // var[fileNameLength] fileName
-      // var[extraFieldLength] extraField
+      // var[lengthOfFileName] fileName
+      // var[lengthOfExtraField] extraField
  };
 
 /**   Central directory structure:
@@ -109,20 +114,20 @@ constexpr int LOCAL_FILE_HEADER_BYTE = 30;
       uint16_t lastModTime;   // 압축 시점의 시간 (1980년 기준 시간)
       uint16_t lastModDate;   // 압축 시점의 날짜 (1980년 기준 연도)
       uint32_t crc32;
-      uint32_t compressedSize;  // same as unCompression (cuz no compreesion)
-      uint32_t unCompressedSize;
-      uint16_t fileNameLength;
-      uint16_t extraFieldLength;
-      uint16_t fileCommentLength;
+      uint32_t sizeOfCompressed;  // same as unCompression (cuz no compreesion)
+      uint32_t sizeOfUncompressed;
+      uint16_t lengthOfFileName;
+      uint16_t lengthOfExtraField;
+      uint16_t lengthOfFileComment;
 
       uint16_t diskNumStart;
       uint16_t attributeInternal;
       uint32_t attributeExternal;
       uint32_t offsetLocalHeader;
 
-      // var[fileNameLength] fileName
-      // var[extraFieldLength] extraField
-      // var[fileCommentLength] fileComment
+      // var[lengthOfFileName] fileName
+      // var[lengthOfExtraField] extraField
+      // var[lengthOfFileComment] fileComment
 };
 
  /**  End of central directory record:
@@ -168,12 +173,11 @@ constexpr int LOCAL_FILE_HEADER_BYTE = 30;
 
       // .ZIP 파일 내 전체 파일 수
       uint16_t numOfEntries;
-      
       uint32_t SizeOfCentralDir;
       uint32_t OffsetOfCentralDirOffset;
       uint16_t LengthOfCommentLength;
 
-      // var[zipFileCommentLength] zipFileComment
+      // var[LengthOfCommentLength] zipFileComment
 };
 
 #pragma pack(pop)