local int Write_LocalFileHeader()

in zlib/contrib/minizip/zip.c [1155:1241]
66 lines of code
22 McCabe index (conditional complexity)

local int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local) {
  /* write the local header */
  int err;
  uInt size_filename = (uInt)strlen(filename);
  uInt size_extrafield = size_extrafield_local;

  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4);

  if (err==ZIP_OK)
  {
    if(zi->ci.zip64)
      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */
    else
      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
  }

  if (err==ZIP_OK)
    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);

  if (err==ZIP_OK)
    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);

  if (err==ZIP_OK)
    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);

  // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later
  if (err==ZIP_OK)
    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
  if (err==ZIP_OK)
  {
    if(zi->ci.zip64)
      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */
    else
      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
  }
  if (err==ZIP_OK)
  {
    if(zi->ci.zip64)
      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */
    else
      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
  }

  if (err==ZIP_OK)
    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);

  if(zi->ci.zip64)
  {
    size_extrafield += 20;
  }

  if (err==ZIP_OK)
    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2);

  if ((err==ZIP_OK) && (size_filename > 0))
  {
    if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
      err = ZIP_ERRNO;
  }

  if ((err==ZIP_OK) && (size_extrafield_local > 0))
  {
    if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local)
      err = ZIP_ERRNO;
  }


  if ((err==ZIP_OK) && (zi->ci.zip64))
  {
      // write the Zip64 extended info
      short HeaderID = 1;
      short DataSize = 16;
      ZPOS64_T CompressedSize = 0;
      ZPOS64_T UncompressedSize = 0;

      // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file)
      zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream);

      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)HeaderID,2);
      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)DataSize,2);

      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8);
      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8);
  }

  return err;
}