macosx/spotlight/unzip.m

4  * or more contributor license agreements.  See the NOTICE file
6  * regarding copyright ownership.  The ASF licenses this file
8  * "License"); you may not use this file except in compliance
39   See the accompanying file LICENSE, version 2000-Apr-09 or later
55   Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
56   file (appnote.txt) is distributed with the PKZIP program (even in the
117 /* unz_file_info_interntal contain internal info about a file in zipfile*/
124 /* file_in_zip_read_info_s contain internal information about a file in zipfile,
158     uLong num_file;             /* number of the current file in the zipfile*/
159     uLong pos_in_central_dir;   /* pos of the current file in the central dir*/
160     uLong current_file_ok;      /* flag about the usability of the current file*/
167     unz_file_info cur_file_info; /* public info about the current file in zip*/
170                                         file if we are decompressing it */
178    for end of file.
406   Open a Zip file. path contain the full pathname (by example,
409      If the zipfile cannot be opened (file doesn't exist or in not valid), the
528 extern int ZEXPORT unzClose (file)
529     unzFile file;
532     if (file==NULL)
534     s=(unz_s*)file;
537         unzCloseCurrentFile(file);
549 extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info)
550     unzFile file;
554     if (file==NULL)
556     s=(unz_s*)file;
581   Get Info about the current file in the zipfile, with internal only info
583 local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file,
594 local int unzlocal_GetCurrentFileInfoInternal (file,
600     unzFile file;
617     if (file==NULL)
619     s=(unz_s*)file;
764 extern int ZEXPORT unzGetCurrentFileInfo (file,
769     unzFile file;
778     return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL,
785   Set the current file of the zipfile to the first file.
788 extern int ZEXPORT unzGoToFirstFile (file)
789     unzFile file;
793     if (file==NULL)
795     s=(unz_s*)file;
798     err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
806   Set the current file of the zipfile to the next file.
808   return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
810 extern int ZEXPORT unzGoToNextFile (file)
811     unzFile file;
816     if (file==NULL)
818     s=(unz_s*)file;
828     err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
837   Try locate the file szFileName in the zipfile.
841   UNZ_OK if the file is found. It becomes the current file.
842   UNZ_END_OF_LIST_OF_FILE if the file is not found
844 extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity)
845     unzFile file;
852     /* We remember the 'current' position in the file so that we can jump
861     if (file==NULL)
867     s=(unz_s*)file;
877     err = unzGoToFirstFile(file);
882         err = unzGetCurrentFileInfo(file,NULL,
890             err = unzGoToNextFile(file);
894     /* We failed, so restore the state of the 'current file' to where we
912 // comprehensive file read to put the file I need in a memory.
918     uLong pos_in_zip_directory;   // offset in file
919     uLong num_of_file;            // # of file
923 extern int ZEXPORT unzGetFilePos(file, file_pos)
924     unzFile file;
929     if (file==NULL || file_pos==NULL)
931     s=(unz_s*)file;
941 extern int ZEXPORT unzGoToFilePos(file, file_pos)
942     unzFile file;
948     if (file==NULL || file_pos==NULL)
950     s=(unz_s*)file;
956     /* set the current file */
957     err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
973         directory about this file
1065   Open for reading data the current file in the zipfile.
1066   If there is no error and the file is opened, the return value is UNZ_OK.
1068 extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
1069     unzFile file;
1084     if (file==NULL)
1086     s=(unz_s*)file;
1091         unzCloseCurrentFile(file);
1186 extern int ZEXPORT unzOpenCurrentFile (file)
1187     unzFile file;
1189     return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
1192 extern int ZEXPORT unzOpenCurrentFilePassword (file, password)
1193     unzFile file;
1196     return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
1199 extern int ZEXPORT unzOpenCurrentFile2 (file,method,level,raw)
1200     unzFile file;
1205     return unzOpenCurrentFile3(file, method, level, raw, NULL);
1209   Read bytes from the current file.
1214   return 0 if the end of file was reached
1218 extern int ZEXPORT unzReadCurrentFile  (file, buf, len)
1219     unzFile file;
1227     if (file==NULL)
1229     s=(unz_s*)file;
1369 extern z_off_t ZEXPORT unztell (file)
1370     unzFile file;
1374     if (file==NULL)
1376     s=(unz_s*)file;
1387   return 1 if the end of file was reached, 0 elsewhere
1389 extern int ZEXPORT unzeof (file)
1390     unzFile file;
1394     if (file==NULL)
1396     s=(unz_s*)file;
1411   Read extra field from the current file (opened by unzOpenCurrentFile)
1422 extern int ZEXPORT unzGetLocalExtrafield (file,buf,len)
1423     unzFile file;
1432     if (file==NULL)
1434     s=(unz_s*)file;
1470   Close the file in zip opened with unzipOpenCurrentFile
1471   Return UNZ_CRCERROR if all the file was read but the CRC is not good
1473 extern int ZEXPORT unzCloseCurrentFile (file)
1474     unzFile file;
1480     if (file==NULL)
1482     s=(unz_s*)file;
1516 extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
1517     unzFile file;
1524     if (file==NULL)
1526     s=(unz_s*)file;
1548 extern uLong ZEXPORT unzGetOffset (file)
1549     unzFile file;
1553     if (file==NULL)
1555     s=(unz_s*)file;
1564 extern int ZEXPORT unzSetOffset (file, pos)
1565         unzFile file;
1571     if (file==NULL)
1573     s=(unz_s*)file;
1577     err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,