1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541
|
//******************************************************************************
//
// File: INTRFACE.CPP
//
// Description: This module acts as the interface between the Info-ZIP code and
// our Windows code in WINMAIN.CPP. We expose the needed
// functions to query a file list, test file(s), extract file(s),
// and display a zip file comment. The windows code is never
// bothered with understanding the Globals structure "Uz_Globs".
//
// This module also catches all the callbacks from the Info-ZIP
// code, cleans up the data provided in the callback, and then
// forwards the information to the appropriate function in the
// windows code. These callbacks include status messages, file
// lists, comments, password prompt, and file overwrite prompts.
//
// Finally, this module implements the few functions that the
// Info-ZIP code expects the port to implement. These functions are
// OS dependent and are mostly related to validating file names and
// directoies, and setting file attributes and dates of saved files.
//
// Copyright: All the source files for Pocket UnZip, except for components
// written by the Info-ZIP group, are copyrighted 1997 by Steve P.
// Miller. The product "Pocket UnZip" itself is property of the
// author and cannot be altered in any way without written consent
// from Steve P. Miller.
//
// Disclaimer: All project files are provided "as is" with no guarantee of
// their correctness. The authors are not liable for any outcome
// that is the result of using this source. The source for Pocket
// UnZip has been placed in the public domain to help provide an
// understanding of its implementation. You are hereby granted
// full permission to use this source in any way you wish, except
// to alter Pocket UnZip itself. For comments, suggestions, and
// bug reports, please write to stevemil@pobox.com.
//
// Functions: DoListFiles
// DoExtractOrTestFiles
// DoGetComment
// SetExtractToDirectory
// InitGlobals
// FreeGlobals
// IsFileOrDirectory
// SmartCreateDirectory
// ExtractOrTestFilesThread
// CheckForAbort
// SetCurrentFile
// UzpMessagePrnt2
// UzpInput2
// UzpMorePause
// UzpPassword
// UzpReplace
// UzpSound
// SendAppMsg
// win_fprintf
// mapattr
// utimeToFileTime
// GetFileTimes
// close_outfile
// do_wild
// mapname
// test_NT
// checkdir
// match
// iswild
// IsOldFileSystem
//
//
// Date Name History
// -------- ------------ -----------------------------------------------------
// 02/01/97 Steve Miller Created (Version 1.0 using Info-ZIP UnZip 5.30)
//
//******************************************************************************
//******************************************************************************
#if 0 // The following information and structure are here just for reference
//******************************************************************************
//
// The Windows CE version of Unzip builds with the following defines set:
//
//
// WIN32
// _WINDOWS
// UNICODE
// _UNICODE
// WIN32_LEAN_AND_MEAN
// STRICT
//
// POCKET_UNZIP (Main define - Always set)
//
// UNZIP_INTERNAL
// WINDLL
// DLL
// REENTRANT
// USE_EF_UT_TIME
// NO_ZIPINFO
// NO_STDDEF_H
// NO_NTSD_EAS
//
// USE_SMITH_CODE (optional - See COPYING document)
// USE_UNSHRINK (optional - See COPYING document)
//
// DEBUG (When building for Debug)
// _DEBUG (When building for Debug)
// NDEBUG (When building for Retail)
// _NDEBUG (When building for Retail)
//
// _WIN32_WCE=100 (When building for Windows CE native)
//
// This causes our Globals structure to look like the following. The only
// things we care about is this Globals structure, the process_zipfiles()
// function, and a few callback functions. The Info-ZIP code has not been
// been modified in any way.
//
typedef struct Globals {
zvoid *callerglobs; // points to pass-through global vars
UzpOpts UzO; // command options structure
int prompt_always; // prompt to overwrite if TRUE
int noargs; // did true command line have *any* arguments?
unsigned filespecs; // number of real file specifications to be matched
unsigned xfilespecs; // number of excluded filespecs to be matched
int process_all_files;
int create_dirs; // used by main(), mapname(), checkdir()
int extract_flag;
int newzip; // reset in extract.c; used in crypt.c
LONGINT real_ecrec_offset;
LONGINT expect_ecrec_offset;
long csize; // used by decompr. (NEXTBYTE): must be signed
long ucsize; // used by unReduce(), explode()
long used_csize; // used by extract_or_test_member(), explode()
int fValidate; // true if only validating an archive
int filenotfound;
int redirect_data; // redirect data to memory buffer
int redirect_text; // redirect text output to buffer
int redirect_slide; // redirect decompression area to mem buffer
unsigned _wsize;
unsigned redirect_size;
uch *redirect_buffer;
uch *redirect_pointer;
uch *redirect_sldptr; // head of decompression slide buffer
char **pfnames;
char **pxnames;
char sig[4];
char answerbuf[10];
min_info info[DIR_BLKSIZ];
min_info *pInfo;
union work area; // see unzpriv.h for definition of work
ZCONST ulg near *crc_32_tab;
ulg crc32val; // CRC shift reg. (was static in funzip)
uch *inbuf; // input buffer (any size is OK)
uch *inptr; // pointer into input buffer
int incnt;
ulg bitbuf;
int bits_left; // unreduce and unshrink only
int zipeof;
char *argv0; // used for NT and EXE_EXTENSION
char *wildzipfn;
char *zipfn; // GRR: MSWIN: must nuke any malloc'd zipfn...
int zipfd; // zipfile file handle
LONGINT ziplen;
LONGINT cur_zipfile_bufstart; // extract_or_test, readbuf, ReadByte
LONGINT extra_bytes; // used in unzip.c, misc.c
uch *extra_field; // Unix, VMS, Mac, OS/2, Acorn, ...
uch *hold;
local_file_hdr lrec; // used in unzip.c, extract.c
cdir_file_hdr crec; // used in unzip.c, extract.c, misc.c
ecdir_rec ecrec; // used in unzip.c, extract.c
struct stat statbuf; // used by main, mapname, check_for_newer
int mem_mode;
uch *outbufptr; // extract.c static
ulg outsize; // extract.c static
int reported_backslash; // extract.c static
int disk_full;
int newfile;
int didCRlast; // fileio static
ulg numlines; // fileio static: number of lines printed
int sol; // fileio static: at start of line
int no_ecrec; // process static
FILE *outfile;
uch *outbuf;
uch *realbuf;
uch *outbuf2; // main() (never changes); else malloc'd
uch *outptr;
ulg outcnt; // number of chars stored in outbuf
char filename[FILNAMSIZ];
char *key; // crypt static: decryption password or NULL
int nopwd; // crypt static
ulg keys[3]; // crypt static: keys defining pseudo-random sequence
unsigned hufts; // track memory usage
struct huft *fixed_tl; // inflate static
struct huft *fixed_td; // inflate static
int fixed_bl
int fixed_bd; // inflate static
unsigned wp; // inflate static: current position in slide
ulg bb; // inflate static: bit buffer
unsigned bk; // inflate static: bits in bit buffer
MsgFn *message;
InputFn *input;
PauseFn *mpause;
PasswdFn *decr_passwd;
StatCBFn *statreportcb;
LPUSERFUNCTIONS lpUserFunctions;
int incnt_leftover; // so improved NEXTBYTE does not waste input
uch *inptr_leftover;
// These are defined in PUNZIP.H.
char matchname[FILNAMSIZ]; // used by do_wild()
int notfirstcall; // used by do_wild()
char *zipfnPtr;
char *wildzipfnPtr;
} Uz_Globs;
#endif // #if 0 - This struct is here just for reference
//******************************************************************************
extern "C" {
#define __INTRFACE_CPP__
#define UNZIP_INTERNAL
#include "unzip.h"
#include "crypt.h" // Needed to pick up CRYPT define
#include <commctrl.h>
#include "intrface.h"
#include "winmain.h"
#ifndef _WIN32_WCE
#include <process.h> // _beginthreadex() and _endthreadex()
#endif
}
#include <tchar.h> // Must be outside of extern "C" block
//******************************************************************************
//***** "Local" Global Variables
//******************************************************************************
static USERFUNCTIONS g_uf;
static EXTRACT_INFO *g_pExtractInfo = NULL;
static FILE_NODE *g_pFileLast = NULL;
static CHAR g_szExtractToDirectory[_MAX_PATH];
static BOOL g_fOutOfMemory;
//******************************************************************************
//***** Local Function Prototypes
//******************************************************************************
extern "C" {
// Our exposed interface functions to the Info-ZIP core.
BOOL DoListFiles(LPCSTR szZipFile);
BOOL DoExtractOrTestFiles(LPCSTR szZipFile, EXTRACT_INFO *pei);
BOOL DoGetComment(LPCSTR szFile);
BOOL SetExtractToDirectory(LPTSTR szDirectory);
// Internal functions.
Uz_Globs* InitGlobals(LPCSTR szZipFile);
void FreeGlobals(Uz_Globs *pG);
int IsFileOrDirectory(LPCTSTR szPath);
BOOL SmartCreateDirectory(Uz_Globs *pG, LPCSTR szDirectory);
#ifdef _WIN32_WCE
DWORD WINAPI ExtractOrTestFilesThread(LPVOID lpv);
#else
unsigned __stdcall ExtractOrTestFilesThread(void *lpv);
#endif
void CheckForAbort(Uz_Globs *pG);
void SetCurrentFile(Uz_Globs *pG);
// Callbacks from Info-ZIP code.
int UzpMessagePrnt2(zvoid *pG, uch *buffer, ulg size, int flag);
int UzpInput2(zvoid *pG, uch *buffer, int *size, int flag);
void UzpMorePause(zvoid *pG, const char *szPrompt, int flag);
int UzpPassword(zvoid *pG, int *pcRetry, char *szPassword, int nSize,
const char *szZipFile, const char *szFile);
int WINAPI UzpReplace(char *szFile);
void WINAPI UzpSound(void);
void WINAPI SendAppMsg(ulg dwSize, ulg dwCompressedSize, int ratio, int month,
int day, int year, int hour, int minute, int uppercase,
char *szPath, char *szMethod, ulg dwCRC);
int win_fprintf(FILE *file, unsigned int dwCount, char far *buffer);
// Functions that Info-ZIP expects the port to write and export.
void utimeToFileTime(time_t ut, FILETIME *pft, BOOL fOldFileSystem);
int GetFileTimes(Uz_Globs *pG, FILETIME *pftCreated, FILETIME *pftAccessed,
FILETIME *pftModified);
int mapattr(Uz_Globs *pG);
void close_outfile(Uz_Globs *pG);
char* do_wild(Uz_Globs *pG, char *wildspec);
int mapname(Uz_Globs *pG, int renamed);
int test_NT(Uz_Globs *pG, uch *eb, unsigned eb_size);
int checkdir(Uz_Globs *pG, char *pathcomp, int flag);
// Check for FAT, VFAT, HPFS, etc.
BOOL IsOldFileSystem(char *szPath);
} // extern "C"
//******************************************************************************
//***** Our exposed interface functions to the Info-ZIP core
//******************************************************************************
int DoListFiles(LPCSTR szZipFile) {
int result;
// Create our Globals struct and fill it in whith some default values.
Uz_Globs *pG = InitGlobals(szZipFile);
if (!pG) {
return PK_MEM;
}
pG->UzO.vflag = 1; // verbosely: list directory (for WIN32 it is 0 or 1)
pG->process_all_files = TRUE; // improves speed
g_pFileLast = NULL;
g_fOutOfMemory = FALSE;
// We wrap some exception handling around the entire Info-ZIP engine to be
// safe. Since we are running on a device with tight memory configurations,
// all sorts of problems can arise when we run out of memory.
__try {
// Call the unzip routine. We will catch the file information in a
// callback to SendAppMsg().
result = process_zipfiles(pG);
// Make sure we didn't run out of memory in the process.
if (g_fOutOfMemory) {
result = PK_MEM;
}
} __except(EXCEPTION_EXECUTE_HANDLER) {
// Catch any exception here.
DebugOut(TEXT("Exception 0x%08X occurred in DoListFiles()"),
GetExceptionCode());
result = PK_EXCEPTION;
}
g_pFileLast = NULL;
// It is possible that the ZIP engine change the file name a bit (like adding
// a ".zip" if needed). If so, we will pick up the new name.
if ((result != PK_EXCEPTION) && pG->zipfn && *pG->zipfn) {
strcpy(g_szZipFile, pG->zipfn);
}
// Free our globals.
FreeGlobals(pG);
return result;
}
//******************************************************************************
BOOL DoExtractOrTestFiles(LPCSTR szZipFile, EXTRACT_INFO *pei) {
// WARNING!!! This functions hands the EXTRACT_INFO structure of to a thread
// to perform the actual extraction/test. When the thread is done, it will
// send a message to the progress dialog. The calling function must not
// delete the EXTRAT_INFO structure until it receives the message. Currently,
// this is not a problem for us since the structure lives on the stack of the
// calling thread. The calling thread then displays a dialog that blocks the
// calling thread from clearing the stack until the dialog is dismissed, which
// occurs when the dialog receives the message.
// Create our globals so we can store the file name.
Uz_Globs *pG = InitGlobals(szZipFile);
if (!pG) {
pei->result = PK_MEM;
SendMessage(g_hDlgProgress, WM_PRIVATE, MSG_OPERATION_COMPLETE, (LPARAM)pei);
return FALSE;
}
// Store a global pointer to the Extract structure so it can be reached from
// our thread and callback functions.
g_pExtractInfo = pei;
// Spawn our thread
DWORD dwThreadId;
HANDLE hThread;
#ifdef _WIN32_WCE
// On CE, we use good old CreateThread() since the WinCE CRT does not
// allocate per-thread storage.
hThread = CreateThread(NULL, 0, ExtractOrTestFilesThread, pG, 0, &dwThreadId);
#else
// On NT, we need use the CRT's thread function so that we don't leak any
// CRT allocated memory when the thread exits.
hThread = (HANDLE)_beginthreadex(NULL, 0, ExtractOrTestFilesThread, pG, 0,
(unsigned*)&dwThreadId);
#endif
// Bail out if our thread failed to create.
if (!hThread) {
DebugOut(TEXT("CreateThread() failed [%u]"), GetLastError());
// Set our error as a memory error.
g_pExtractInfo->result = PK_MEM;
// Free our globals.
FreeGlobals(pG);
// Tell the progress dialog that we are done.
SendMessage(g_hDlgProgress, WM_PRIVATE, MSG_OPERATION_COMPLETE, (LPARAM)pei);
g_pExtractInfo = NULL;
return FALSE;
}
// Close our thread handle since we have no use for it.
CloseHandle(hThread);
return TRUE;
}
//******************************************************************************
int DoGetComment(LPCSTR szFile) {
int result;
// Create our Globals struct and fill it in whith some default values.
Uz_Globs *pG = InitGlobals(szFile);
if (!pG) {
return PK_MEM;
}
pG->UzO.zflag = TRUE; // display the zipfile comment
// We wrap some exception handling around the entire Info-ZIP engine to be
// safe. Since we are running on a device with tight memory configurations,
// all sorts of problems can arise when we run out of memory.
__try {
// Call the unzip routine. We will catch the comment string in a callback
// to win_fprintf().
result = process_zipfiles(pG);
} __except(EXCEPTION_EXECUTE_HANDLER) {
// Catch any exception here.
DebugOut(TEXT("Exception 0x%08X occurred in DoGetComment()"),
GetExceptionCode());
result = PK_EXCEPTION;
}
// Free our globals.
FreeGlobals(pG);
return result;
}
//******************************************************************************
BOOL SetExtractToDirectory(LPTSTR szDirectory) {
BOOL fNeedToAddWack = FALSE;
// Remove any trailing wack from the path.
int length = _tcslen(szDirectory);
if ((length > 0) && (szDirectory[length - 1] == TEXT('\\'))) {
szDirectory[--length] = TEXT('\0');
fNeedToAddWack = TRUE;
}
#ifndef _WIN32_WCE
// Check to see if a root directory was specified.
if ((length == 2) && isalpha(szDirectory[0]) && (szDirectory[1] == ':')) {
// If just a root is specified, we need to only verify the drive letter.
if (!(GetLogicalDrives() & (1 << (tolower(szDirectory[0]) - (int)'a')))) {
// This drive does not exist. Bail out with a failure.
return FALSE;
}
} else
#endif
// We only verify path if length is >0 since we know "\" is valid.
if (length > 0) {
// Verify the the path exists and that it is a directory.
if (IsFileOrDirectory(szDirectory) != 2) {
return FALSE;
}
}
// Store the directory for when we do an extract.
wcstombs(g_szExtractToDirectory, szDirectory, countof(g_szExtractToDirectory));
// We always want a wack at the end of our path.
strcat(g_szExtractToDirectory, "\\");
// Add the wack back to the end of the path.
if (fNeedToAddWack) {
_tcscat(szDirectory, TEXT("\\"));
}
return TRUE;
}
//******************************************************************************
//***** Internal functions
//******************************************************************************
Uz_Globs* InitGlobals(LPCSTR szZipFile) {
// Create our global structure - pG
CONSTRUCTGLOBALS();
// Bail out if we failed to allocate our Globals structure.
if (!pG) {
return NULL;
}
// Store a global pointer to our USERFUNCTIONS structure so that LIST.C,
// PROCESS.C, and WINMAIN can access it.
pG->lpUserFunctions = &g_uf;
// Clear our USERFUNCTIONS structure and assign our SendAppMsg() function.
ZeroMemory(&g_uf, sizeof(g_uf));
g_uf.SendApplicationMessage = SendAppMsg;
// Fill in all our callback functions.
pG->message = UzpMessagePrnt2;
pG->input = UzpInput2;
pG->mpause = UzpMorePause;
pG->lpUserFunctions->replace = UzpReplace;
pG->lpUserFunctions->sound = UzpSound;
#if CRYPT
pG->decr_passwd = UzpPassword;
#endif
// Match filenames case-sensitively. We can do this since we can guarentee
// exact case because the user can only select files via our UI.
pG->UzO.C_flag = FALSE;
// Allocate and store the ZIP file name in pG->zipfn
if (!(pG->zipfnPtr = new char[FILNAMSIZ])) {
FreeGlobals(pG);
return NULL;
}
pG->zipfn = pG->zipfnPtr;
strcpy(pG->zipfn, szZipFile);
// Allocate and store the ZIP file name in pG->zipfn. This needs to done
// so that do_wild() does not wind up clearing out the zip file name when
// it returns in process.c
if (!(pG->wildzipfnPtr = new char[FILNAMSIZ])) {
FreeGlobals(pG);
return NULL;
}
pG->wildzipfn = pG->wildzipfnPtr;
strcpy(pG->wildzipfn, szZipFile);
return pG;
}
//******************************************************************************
void FreeGlobals(Uz_Globs *pG) {
// Free our ZIP file name
if (pG->zipfnPtr) {
delete[] pG->zipfnPtr;
pG->zipfnPtr = pG->zipfn = NULL;
}
// Free our wild name buffer
if (pG->wildzipfnPtr) {
delete[] pG->wildzipfnPtr;
pG->wildzipfnPtr = pG->wildzipfn = NULL;
}
// Free everything else.
DESTROYGLOBALS()
}
//******************************************************************************
int IsFileOrDirectory(LPCTSTR szPath) {
// Geth the attributes of the item.
DWORD dwAttribs = GetFileAttributes(szPath);
// Bail out now if we could not find the path at all.
if (dwAttribs == 0xFFFFFFFF) {
return 0;
}
// Return 1 for file and 2 for directory.
return ((dwAttribs & FILE_ATTRIBUTE_DIRECTORY) ? 2 : 1);
}
//******************************************************************************
BOOL SmartCreateDirectory(Uz_Globs *pG, LPCSTR szDirectory) {
// Copy path to a UNICODE buffer.
TCHAR szBuffer[_MAX_PATH];
mbstowcs(szBuffer, szDirectory, countof(szBuffer));
int x = IsFileOrDirectory(szBuffer);
// Create the directory if it does not exist.
if (x == 0) {
if (!CreateDirectory(szBuffer, NULL)) {
Info(slide, 1, ((char *)slide, "error creating directory: %s\n", szDirectory));
return FALSE;
}
// If there is a file with the same name, then display an error.
} else if (x == 1) {
Info(slide, 1, ((char *)slide,
"cannot create %s as a file with same name already exists.\n",
szDirectory));
return FALSE;
}
// If the directory already exists or was created, then return success.
return TRUE;
}
//******************************************************************************
#ifdef _WIN32_WCE
// On WinCE, we declare our thread function the way CreateThread() likes it.
DWORD WINAPI ExtractOrTestFilesThread(LPVOID lpv) {
#else
// On WinNT, we declare our thread function the way _beginthreadex likes it.
unsigned __stdcall ExtractOrTestFilesThread(void *lpv) {
#endif
Uz_Globs *pG = (Uz_Globs*)lpv;
if (g_pExtractInfo->fExtract) {
pG->extract_flag = TRUE;
switch (g_pExtractInfo->overwriteMode) {
case OM_NEWER: // Update (extract only newer/brand-new files)
pG->UzO.uflag = TRUE;
break;
case OM_ALWAYS: // OK to overwrite files without prompting
pG->UzO.overwrite_all = TRUE;
break;
case OM_NEVER: // Never overwrite files (no prompting)
pG->UzO.overwrite_none = TRUE;
break;
default: // Force a prompt
pG->prompt_always = TRUE;
break;
}
// Throw away paths if requested.
pG->UzO.jflag = !g_pExtractInfo->fRestorePaths;
} else {
pG->UzO.tflag = TRUE;
}
if (g_pExtractInfo->szFileList) {
pG->filespecs = g_pExtractInfo->dwFileCount;
pG->pfnames = g_pExtractInfo->szFileList;
} else {
// Improves performance if all files are being extracted.
pG->process_all_files = TRUE;
}
// Invalidate our file offset to show that we are starting a new operation.
g_pExtractInfo->dwFileOffset = 0xFFFFFFFF;
// We wrap some exception handling around the entire Info-ZIP engine to be
// safe. Since we are running on a device with tight memory configurations,
// all sorts of problems can arise when we run out of memory.
__try {
// Put a jump marker on our stack so the user can abort.
int error = setjmp(dll_error_return);
// If setjmp() returns 0, then we just set our jump marker and we can
// continue with the operation. If setjmp() returned something else,
// then we reached this point because the operation was aborted and
// set our instruction pointer back here.
if (error > 0) {
// We already called process_zipfiles() and were thrown back here.
g_pExtractInfo->result = (error == 1) ? PK_BADERR : error;
} else {
// Entering Info-ZIP... close your eyes.
g_pExtractInfo->result = process_zipfiles(pG);
}
} __except(EXCEPTION_EXECUTE_HANDLER) {
// Catch any exception here.
DebugOut(TEXT("Exception 0x%08X occurred in ExtractOrTestFilesThread()"),
GetExceptionCode());
g_pExtractInfo->result = PK_EXCEPTION;
}
// Free our globals.
FreeGlobals(pG);
// Tell the progress dialog that we are done.
SendMessage(g_hDlgProgress, WM_PRIVATE, MSG_OPERATION_COMPLETE,
(LPARAM)g_pExtractInfo);
// Clear our global pointer as we are done with it.
g_pExtractInfo = NULL;
#ifndef _WIN32_WCE
// On NT, we need to free any CRT allocated memory.
_endthreadex(0);
#endif
return 0;
}
//******************************************************************************
void CheckForAbort(Uz_Globs *pG) {
if (g_pExtractInfo->fAbort) {
// Add a newline to our log if we are in the middle of a line of text.
if (!g_pExtractInfo->fNewLineOfText) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)"\n");
}
// Make sure whatever file we are currently processing gets closed.
if (((int)pG->outfile != 0) && ((int)pG->outfile != -1)) {
if (g_pExtractInfo->fExtract && *pG->filename) {
// Make sure the user is aware that this file is screwed.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)"warning: ");
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)pG->filename);
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)" is probably truncated.\n");
}
// Close the file.
close_outfile(pG);
}
// Display an aborted message in the log
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)"Operation aborted by user.\n");
// I hate to do this... Take a giant step out of here.
longjmp(dll_error_return, PK_ABORTED);
}
}
//******************************************************************************
void SetCurrentFile(Uz_Globs *pG) {
// Reset all our counters as we about to process a new file.
g_pExtractInfo->dwFileOffset = (DWORD)pG->pInfo->offset;
g_pExtractInfo->dwFile++;
g_pExtractInfo->dwBytesWrittenThisFile = 0;
g_pExtractInfo->dwBytesWrittenPreviousFiles += g_pExtractInfo->dwBytesTotalThisFile;
g_pExtractInfo->dwBytesTotalThisFile = pG->ucsize;
g_pExtractInfo->szFile = pG->filename;
g_pExtractInfo->fNewLineOfText = TRUE;
// Pass control to our GUI thread to do a full update our progress dialog.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_UPDATE_PROGRESS_COMPLETE,
(LPARAM)g_pExtractInfo);
// Check our abort flag.
CheckForAbort(pG);
}
//******************************************************************************
//***** Callbacks from Info-ZIP code.
//******************************************************************************
int UzpMessagePrnt2(zvoid *pG, uch *buffer, ulg size, int flag) {
// Some ZIP files cause us to get called during DoListFiles(). We only handle
// messages while processing DoExtractFiles().
if (!g_pExtractInfo) {
if (g_hWndEdit) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)buffer);
} else {
DebugOut(TEXT("Unhandled call to UzpMessagePrnt2(\"%S\")"), buffer);
}
return 0;
}
// When extracting, mapname() will get called for every file which in turn
// will call SetCurrentFile(). For testing though, mapname() never gets
// called so we need to be on the lookout for a new file.
if (g_pExtractInfo->dwFileOffset != (DWORD)((Uz_Globs*)pG)->pInfo->offset) {
SetCurrentFile((Uz_Globs*)pG);
}
// Make sure this message was inteded for us to display.
if (!MSG_NO_WGUI(flag) && !MSG_NO_WDLL(flag)) {
// Insert a leading newline if requested to do so.
if (MSG_LNEWLN(flag) && !g_pExtractInfo->fNewLineOfText) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)"\n");
g_pExtractInfo->fNewLineOfText = TRUE;
}
// Since we use a proportional font, we need to do a little cleanup of the
// text we are passed since it assumes a fixed font and adds padding to try
// to line things up. We remove leading whitespace on any new line of text.
if (g_pExtractInfo->fNewLineOfText) {
while (*buffer == ' ') {
buffer++;
}
}
// We always remove trailing whitespace.
LPSTR psz = (LPSTR)buffer + strlen((LPSTR)buffer) - 1;
while ((psz >= (LPSTR)buffer) && (*psz == ' ')) {
*(psz--) = '\0';
}
// Determine if the next line of text will be a new line of text.
g_pExtractInfo->fNewLineOfText = ((*psz == '\r') || (*psz == '\n'));
// Change all forward slashes to back slashes in the buffer
ForwardSlashesToBackSlashesA((LPSTR)buffer);
// Add the cleaned-up text to our extraction log edit control.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)buffer);
// Append a trailing newline if requested to do so.
if (MSG_TNEWLN(flag) || MSG_MNEWLN(flag) && !g_pExtractInfo->fNewLineOfText) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)"\n");
g_pExtractInfo->fNewLineOfText = TRUE;
}
}
return 0;
}
//******************************************************************************
int UzpInput2(zvoid *pG, uch *buffer, int *size, int flag) {
DebugOut(TEXT("WARNING: UzpInput2(...) called"));
return 0;
}
//******************************************************************************
void UzpMorePause(zvoid *pG, const char *szPrompt, int flag) {
DebugOut(TEXT("WARNING: UzpMorePause(...) called"));
}
//******************************************************************************
int UzpPassword(zvoid *pG, int *pcRetry, char *szPassword, int nSize,
const char *szZipFile, const char *szFile)
{
// Return Values:
// IZ_PW_ENTERED got some PWD string, use/try it
// IZ_PW_CANCEL no password available (for this entry)
// IZ_PW_CANCELALL no password, skip any further PWD request
// IZ_PW_ERROR failure (no mem, no tty, ...)
#if CRYPT
// Build the data structure for our dialog.
DECRYPT_INFO di;
di.retry = *pcRetry;
di.szPassword = szPassword;
di.nSize = nSize;
di.szFile = szFile;
// Clear the password to be safe.
*di.szPassword = '\0';
// On our first call for a file, *pcRetry == 0. If we would like to allow
// for retries, then we set the value of *pcRetry to the number of retries we
// are willing to allow. We will be recalled as neccessary, each time with
// *pcRetry being decremented once. 1 is the last retry we will get.
*pcRetry = (*pcRetry == 0) ? MAX_PASSWORD_RETRIES : (*pcRetry - 1);
// Pass control to our GUI thread which will prompt the user for a password.
return SendMessage(g_hWndMain, WM_PRIVATE, MSG_PROMPT_FOR_PASSWORD, (LPARAM)&di);
#else
return -2;
#endif
}
//******************************************************************************
int WINAPI UzpReplace(char *szFile) {
// Pass control to our GUI thread which will prompt the user to overwrite.
return SendMessage(g_hWndMain, WM_PRIVATE, MSG_PROMPT_TO_REPLACE, (LPARAM)szFile);
}
//******************************************************************************
void WINAPI UzpSound(void) {
// Do nothing.
}
//******************************************************************************
// Called from LIST.C
void WINAPI SendAppMsg(ulg dwSize, ulg dwCompressedSize, int ratio, int month,
int day, int year, int hour, int minute, int uppercase,
char *szPath, char *szMethod, ulg dwCRC)
{
// If we are out of memory, then just bail since we will only make things worse.
if (g_fOutOfMemory) {
return;
}
// We get our Globals structure and then retrieve the real file name.
GETGLOBALS()
szPath = pG->filename;
// Allocate a FILE_NODE large enough to hold this file.
int length = strlen(szPath) + strlen(szMethod);
g_pFileLast = (FILE_NODE*)new BYTE[sizeof(FILE_NODE) + (sizeof(TCHAR) * length)];
// Bail out if we failed to allocate the node.
if (!g_pFileLast) {
DebugOut(TEXT("Failed to create a FILE_NODE for \"%S\"."), szPath);
g_fOutOfMemory = TRUE;
return;
}
// Fill in our node.
g_pFileLast->dwSize = dwSize;
g_pFileLast->dwCompressedSize = dwCompressedSize;
g_pFileLast->dwCRC = dwCRC;
g_pFileLast->szComment = NULL;
g_pFileLast->szType = NULL;
// Fix the year value to contain the real year.
year += 1900;
// Year: 0 - 4095 (12) 1111 1111 1111 0000 0000 0000 0000 0000 (0xFFF00000)
// Month: 1 - 12 ( 4) 0000 0000 0000 1111 0000 0000 0000 0000 (0x000F0000)
// Day: 1 - 31 ( 5) 0000 0000 0000 0000 1111 1000 0000 0000 (0x0000F800)
// Hour: 0 - 23 ( 5) 0000 0000 0000 0000 0000 0111 1100 0000 (0x000007C0)
// Minute: 0 - 59 ( 6) 0000 0000 0000 0000 0000 0000 0011 1111 (0x0000003F)
// Do some bit shifting to make the date and time fit in a DWORD.
g_pFileLast->dwModified = (((DWORD)(year & 0x0FFF) << 20) |
((DWORD)(month & 0x000F) << 16) |
((DWORD)(day & 0x001F) << 11) |
((DWORD)(hour & 0x001F) << 6) |
((DWORD)(minute & 0x003F)));
// We need to get our globals structure to determine our attributes and
// encryption information.
g_pFileLast->dwAttributes = (pG->crec.external_file_attributes & 0xFF);
if (pG->crec.general_purpose_bit_flag & 1) {
g_pFileLast->dwAttributes |= FILE_ATTRIBUTE_ENCRYPTED;
}
// Store the path and method in our string buffer.
strcpy(g_pFileLast->szPathAndMethod, szPath);
strcpy(g_pFileLast->szPathAndMethod + strlen(szPath) + 1, szMethod);
// Pass the file object to our windows code to have it added to our list.
AddFileToListView(g_pFileLast);
}
//******************************************************************************
int win_fprintf(FILE *file, unsigned int dwCount, char far *buffer) {
// win_fprintf() is used within Info-ZIP to write to a file as well as log
// information. If the "file" is a real file handle (not stdout or stderr),
// then we write the data to the file and return.
if ((file != stdout) && (file != stderr)) {
DWORD dwBytesWriten = 0;
#ifdef _WIN32_WCE
// On WinCE all FILEs are really HANDLEs. See WINCE.CPP for more info.
WriteFile((HANDLE)file, buffer, dwCount, &dwBytesWriten, NULL);
#else
dwBytesWriten = fwrite(buffer, 1, dwCount, file);
#endif
// Update our bytes written count.
g_pExtractInfo->dwBytesWrittenThisFile += dwBytesWriten;
// Pass control to our GUI thread to do a partial update our progress dialog.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_UPDATE_PROGRESS_PARTIAL,
(LPARAM)g_pExtractInfo);
// Check our abort flag.
GETGLOBALS();
CheckForAbort(pG);
return dwBytesWriten;
}
// Check to see if we are expecting a extraction progress string
if (g_pExtractInfo) {
// Most of our progress strings come to our UzpMessagePrnt2() callback,
// but we occasionally get one here. We will just forward it to
// UzpMessagePrnt2() as if it never came here. To do this, we need to
// get a pointer to our Globals struct. Calling GETGLOBALS() sort of
// breaks us from be REENTRANT, but we don't support that anyway.
GETGLOBALS();
UzpMessagePrnt2(pG, (uch*)buffer, dwCount, 0);
return dwCount;
}
// Check to see if we are expecting a zip file comment string.
if (g_hWndEdit) {
// Change all forward slashes to back slashes in the buffer
ForwardSlashesToBackSlashesA((LPSTR)buffer);
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)buffer);
return dwCount;
}
// Check to see if we are expecting a compressed file comment string.
if (g_pFileLast) {
// Calcalute the size of the buffer we will need to store this comment.
// We are going to convert all ASC values 0 - 31 (excpet tab, new line,
// and CR) to ^char.
int size = 1;
for (char *p2, *p1 = buffer; *p1; p1++) {
size += ((*p1 >= 32) || (*p1 == '\t') || (*p1 == '\r') || (*p1 == '\n')) ? 1 : 2;
}
// Allocate a comment buffer and assign it to the last file node we saw.
if (g_pFileLast->szComment = new CHAR[size]) {
// Copy while formatting.
for (p1 = buffer, p2 = (char*)g_pFileLast->szComment; *p1; p1++) {
if ((*p1 >= 32) || (*p1 == '\t') || (*p1 == '\r') || (*p1 == '\n')) {
*(p2++) = *p1;
} else {
*(p2++) = '^';
*(p2++) = 64 + *p1;
}
}
*p2 = '\0';
}
// Update the attributes of the file node to incldue the comment attribute.
g_pFileLast->dwAttributes |= FILE_ATTRIBUTE_COMMENT;
// Clear the file node so we don't try to add another bogus comment to it.
g_pFileLast = NULL;
return dwCount;
}
if (dwCount >= _MAX_PATH) {
buffer[_MAX_PATH] = '\0';
}
DebugOut(TEXT("Unhandled call to win_fprintf(\"%S\")"), buffer);
return dwCount;
}
//******************************************************************************
//***** Functions that Info-ZIP expects the port to write and export.
//***** Some of this code was stolen from the WIN32 port and highly modified.
//******************************************************************************
int mapattr(Uz_Globs *pG) {
// Check to see if we are extracting this file for viewing. Currently, we do
// this by checking the szMappedPath member of our extract info stucture
// since we know OnActionView() is the only one who sets this member.
if (g_pExtractInfo && g_pExtractInfo->szMappedPath) {
// If we are extracting for view only, then we ignore the file's real
// attributes and force the file to create as read-only. We make the file
// read-only to help prevent the user from making changes to the temporary
// file and then trying to save the changes back to a file that we will
// eventually delete.
pG->pInfo->file_attr = FILE_ATTRIBUTE_READONLY;
} else {
// Store the attribute exactly as it appears for normal extraction/test.
pG->pInfo->file_attr = (unsigned)pG->crec.external_file_attributes & 0xff;
}
return PK_OK;
}
//******************************************************************************
void utimeToFileTime(time_t ut, FILETIME *pft, BOOL fOldFileSystem) {
// time_t is a 32-bit value for the seconds since January 1, 1970
// FILETIME is a 64-bit value for the number of 100-nanosecond intervals since
// January 1, 1601
// DWORDLONG is a 64-bit int that we can use to perform large math operations.
// time_t has minimum of 1/1/1970. Many file systems, such as FAT, have a
// minimum date of 1/1/1980. If extracting to one of those file systems and
// out time_t is less than 1980, then we make it 1/1/1980.
// (365 days/yr * 10 yrs + 3 leap yr days) * (60 secs * 60 mins * 24 hrs).
if (fOldFileSystem && (ut < 0x12CFF780)) {
ut = 0x12CFF780;
}
// Compute the FILETIME for the given time_t.
DWORDLONG dwl = ((DWORDLONG)116444736000000000 +
((DWORDLONG)ut * (DWORDLONG)10000000));
// Store the return value.
*pft = *(FILETIME*)&dwl;
// Now for the next fix for old file systems. If we are in Daylight Savings
// Time (DST) and the file is not in DST, then we need subtract off the DST
// bias from the filetime. This is due to a bug in Windows (NT, CE, and 95)
// that causes the DST bias to be added to all file times when the system
// is in DST, even if the file is not in DST. This only effects old file
// systems since they store local times instead of UTC times. Newer file
// systems like NTFS and CEFS store UTC times.
if (fOldFileSystem) {
// We use the CRT's localtime() and Win32's FileTimeToLocalTime()
// functions to compute the DST bias. This works because localtime()
// correctly adds the DST bias only if the file time is in DST.
// FileTimeToLocalTime() always adds the DST bias to the time.
// Therefore, if the functions return different results, we know we
// are dealing with a non-DST file during a system DST.
FILETIME ftCRT, ftWin32;
// Get the CRT result - result is a "tm" struct.
struct tm *ptmCRT = localtime(&ut);
// Convert the "tm" struct to a FILETIME.
SYSTEMTIME stCRT;
ZeroMemory(&stCRT, sizeof(stCRT));
stCRT.wYear = ptmCRT->tm_year + 1900;
stCRT.wMonth = ptmCRT->tm_mon + 1;
stCRT.wDay = ptmCRT->tm_mday;
stCRT.wHour = ptmCRT->tm_hour;
stCRT.wMinute = ptmCRT->tm_min;
stCRT.wSecond = ptmCRT->tm_sec;
SystemTimeToFileTime(&stCRT, &ftCRT);
// Get the Win32 result - result is a FILETIME.
if (FileTimeToLocalFileTime(pft, &ftWin32)) {
// Subtract the difference from our current filetime.
*(DWORDLONG*)pft -= *(DWORDLONG*)&ftWin32 - *(DWORDLONG*)&ftCRT;
}
}
}
//******************************************************************************
int GetFileTimes(Uz_Globs *pG, FILETIME *pftCreated, FILETIME *pftAccessed,
FILETIME *pftModified)
{
// We need to check to see if this file system is limited. This includes
// FAT, VFAT, and HPFS. It does not include NTFS and CEFS. The limited
// file systems can not support dates < 1980 and they store file local times
// for files as opposed to UTC times.
BOOL fOldFileSystem = IsOldFileSystem(pG->filename);
#ifdef USE_EF_UT_TIME // Always true for WinCE build
#ifdef IZ_CHECK_TZ
if (pG->extra_field && pG->tz_is_valid) {
#else
if (pG->extra_field) {
#endif
// Structure for Unix style actime, modtime, creatime
iztimes z_utime;
// Get any date/time we can. This can return 0 to 3 unix time fields.
unsigned eb_izux_flg = ef_scan_for_izux(pG->extra_field,
pG->lrec.extra_field_length, 0,
pG->lrec.last_mod_file_date,
&z_utime, NULL);
// We require at least a modified time.
if (eb_izux_flg & EB_UT_FL_MTIME) {
// We know we have a modified time, so get it first.
utimeToFileTime(z_utime.mtime, pftModified, fOldFileSystem);
// Get the accessed time if we have one.
if (eb_izux_flg & EB_UT_FL_ATIME) {
utimeToFileTime(z_utime.atime, pftAccessed, fOldFileSystem);
}
// Get the created time if we have one.
if (eb_izux_flg & EB_UT_FL_CTIME) {
utimeToFileTime(z_utime.ctime, pftCreated, fOldFileSystem);
}
// Return our flags.
return (int)eb_izux_flg;
}
}
#endif // USE_EF_UT_TIME
// If all else fails, we can resort to using the DOS date and time data.
time_t ux_modtime = dos_to_unix_time(G.lrec.last_mod_file_date,
G.lrec.last_mod_file_time);
utimeToFileTime(ux_modtime, pftModified, fOldFileSystem);
*pftAccessed = *pftModified;
return (EB_UT_FL_MTIME | EB_UT_FL_ATIME);
}
//******************************************************************************
void close_outfile(Uz_Globs *pG) {
// Get the 3 time stamps for the file.
FILETIME ftCreated, ftAccessed, ftModified;
int timeFlags = GetFileTimes(pG, &ftCreated, &ftAccessed, &ftModified);
TCHAR szFile[_MAX_PATH];
mbstowcs(szFile, pG->filename, countof(szFile));
#ifdef _WIN32_WCE
// Cast the outfile to a HANDLE (since that is really what it is), and
// flush the file. We need to flush, because any unsaved data that is
// written to the file during CloseHandle() will step on the work done
// by SetFileTime().
HANDLE hFile = (HANDLE)pG->outfile;
FlushFileBuffers(hFile);
#else
// Close the file and then re-open it using the Win32 CreateFile() call.
// SetFileTime() requires a Win32 file HANDLE created with GENERIC_WRITE
// access.
fclose(pG->outfile);
HANDLE hFile = CreateFile(szFile, GENERIC_WRITE, FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
#endif
// Set the file's date and time.
if (hFile != INVALID_HANDLE_VALUE) {
// Make sure we retrieved some valid time stamp(s)
if (timeFlags) {
// Set the various date and time fields.
if (!SetFileTime(hFile,
(timeFlags & EB_UT_FL_CTIME) ? &ftCreated : NULL,
(timeFlags & EB_UT_FL_ATIME) ? &ftAccessed : NULL,
(timeFlags & EB_UT_FL_MTIME) ? &ftModified : NULL))
{
DebugOut(TEXT("SetFileTime() failed [%u]"), GetLastError());
}
} else {
DebugOut(TEXT("GetFileTimes() failed"));
}
// Close out file.
CloseHandle(hFile);
} else {
DebugOut(TEXT("CreateFile() failed [%u]"), GetLastError());
}
// If the file was successfully written, then set the attributes.
if (!pG->disk_full && !g_pExtractInfo->fAbort) {
if (!SetFileAttributes(szFile, G.pInfo->file_attr & 0x7F)) {
DebugOut(TEXT("SetFileAttributes() failed [%u]"), GetLastError());
}
}
// Clear outfile so we know it is closed.
pG->outfile = 0;
return;
}
//******************************************************************************
// Called by PROCESS.C
char* do_wild(Uz_Globs *pG, char *wildspec) {
// This is a very slimmed down version of do_wild() taken from WIN32.C.
// Since we don't support wildcards, we basically just return the wildspec
// passed in as the filename.
// First call - must initialize everything.
if (!pG->notfirstcall) {
pG->notfirstcall = TRUE;
return strcpy(pG->matchname, wildspec);
}
// Last time through - reset for new wildspec.
pG->notfirstcall = FALSE;
return (char*)NULL;
}
//******************************************************************************
// Called from EXTRACT.C
//
// returns: 1 - (on APPEND_NAME) truncated filename
// 2 - path doesn't exist, not allowed to create
// 3 - path doesn't exist, tried to create and failed; or
// path exists and is not a directory, but is supposed to be
// 4 - path is too long
// 10 - can't allocate memory for filename buffers
//
// IZ_VOL_LABEL - Path was a volume label, skip it.
// IZ_CREATED_DIR - Created a directory.
//
int mapname(Uz_Globs *pG, int renamed) {
// mapname() is a great place to reset all our status counters for the next
// file to be processed since it is called for every zip file member before
// any work is done with that member.
SetCurrentFile(pG);
// If Volume Label, skip the "extraction" quietly
if (pG->pInfo->vollabel) {
return IZ_VOL_LABEL;
}
CHAR szBuffer[countof(pG->filename)] = "", *pIn, *pOut, *pLastSemi = NULL;
// Initialize file path buffer with our "extract to" path.
strcpy(szBuffer, g_szExtractToDirectory);
pOut = szBuffer + strlen(szBuffer);
// Point pIn to beginning of our internal pathname.
// If we are junking paths, then locate the file portion of the path.
pIn = (pG->UzO.jflag) ? (CHAR*)GetFileFromPath(pG->filename) : pG->filename;
// Begin main loop through characters in filename.
for ( ; *pIn; pIn++) {
// Make sure we don't overflow our output buffer.
if (pOut >= (szBuffer + countof(szBuffer) - 2)) {
Info(slide, 1, ((char*)slide, "path too long: %s\n", pG->filename));
return 4;
}
// Examine the next character in our input buffer.
switch (*pIn) {
// Check for a directory wack.
case '/':
case '\\':
*pOut = '\0';
if (!SmartCreateDirectory(pG, szBuffer)) {
Info(slide, 1, ((char*)slide, "failure extracting: %s\n",
pG->filename));
return 3;
}
*(pOut++) = '\\';
pLastSemi = NULL; // Leave any directory semi-colons alone
break;
// Check for illegal characters and replace with underscore.
case ':':
case '*':
case '?':
case '"':
case '<':
case '>':
case '|':
*(pOut++) = '_';
break;
// Check for start of VMS version.
case ';':
pLastSemi = pOut; // Make note as to where we are.
*(pOut++) = *pIn; // Leave the semi-colon alone for now.
break;
default:
// Allow European characters and spaces in filenames.
*(pOut++) = ((*pIn >= 0x20) ? *pIn : '_');
}
}
// Done with output buffer, terminate it.
*pOut = '\0';
// Remove any VMS version numbers if found (appended ";###").
if (pLastSemi) {
// Walk over all digits following the semi-colon.
for (pOut = pLastSemi + 1; (*pOut >= '0') && (*pOut <= '9'); pOut++) {
}
// If we reached the end, then nuke the semi-colon and digits.
if (!*pOut) {
*pLastSemi = '\0';
}
}
// Copy the mapped name back to the internal path buffer
strcpy(pG->filename, szBuffer);
// Fill in the mapped name buffer if the original caller requested us to.
if (g_pExtractInfo->szMappedPath) {
strcpy(g_pExtractInfo->szMappedPath, szBuffer);
}
// If it is a directory, then display the "creating" status text.
if ((pOut > szBuffer) && (pOut[-1] == TEXT('\\'))) {
Info(slide, 0, ((char *)slide, "creating: %s\n", pG->filename));
return IZ_CREATED_DIR;
}
return PK_OK;
}
//******************************************************************************
// Called from EXTRACT.C
int test_NT(Uz_Globs *pG, uch *eb, unsigned eb_size) {
// This function is called when an NT security descriptor is found in the
// extra field. We have nothing to do, so we just return success.
return PK_OK;
}
//******************************************************************************
// Called from PROCESS.C
int checkdir(Uz_Globs *pG, char *pathcomp, int flag) {
// This function is only called by free_G_buffers() from PROCESS.C with the
// flag set to END. We have nothing to do, so we just return success.
return PK_OK;
}
//******************************************************************************
// Called from EXTRACT.C and LIST.C
int match(char *string, char *pattern, int ignore_case) {
// match() for the other ports compares a file in the Zip file with some
// command line file pattern. In our case, we always pass in exact matches,
// so we can simply do a string compare to see if we have a match.
return (strcmp(string, pattern) == 0);
}
//******************************************************************************
// Called from PROCESS.C
int iswild(char *pattern) {
// Our file patterns never contain wild characters. They are always exact
// matches of file names in our Zip file.
return FALSE;
}
//******************************************************************************
//***** Functions to correct time stamp bugs on old file systems.
//******************************************************************************
//******************************************************************************
// Borrowed/Modified from win32.c
BOOL IsOldFileSystem(char *szPath) {
#ifdef _WIN32_WCE
char szRoot[10];
// Get the first nine characters of the path.
strncpy(szRoot, szPath, 9);
szRoot[9] = '\0';
// Convert to uppercase to help with compare.
_strupr(szRoot);
// PC Cards are mounted off the root in a directory called "\PC Cards".
// PC Cards are FAT, no CEOS. We need to check if the file is being
// extracted to the PC card.
return !strcmp(szRoot, "\\PC CARD\\");
#else
char szRoot[_MAX_PATH] = "\0\0\0", szFS[64];
// Check to see if our path contains a drive letter.
if (isalpha(szPath[0]) && (szPath[1] == ':') && (szPath[2] == '\\')) {
// If so, then just copy the drive letter, colon, and wack to our root path.
strncpy(szRoot, szPath, 3);
} else {
// Expand the path so we can get a drive letter.
GetFullPathNameA(szPath, sizeof(szRoot), szRoot, NULL);
// Make sure we actually got a drive letter back in our root path buffer..
if (!isalpha(szRoot[0]) || (szRoot[1] != ':') || (szRoot[2] != '\\')) {
// When in doubt, return TRUE.
return TRUE;
}
}
// NULL terminate after the wack to ensure we have just the root path.
szRoot[3] = '\0';
// Get the file system type string.
GetVolumeInformationA(szRoot, NULL, 0, NULL, NULL, NULL, szFS, sizeof(szFS));
// Ensure that the file system type string is uppercase.
strupr(szFS);
// Return true for (V)FAT and (OS/2) HPFS format.
return !strncmp(szFS, "FAT", 3) ||
!strncmp(szFS, "VFAT", 4) ||
!strncmp(szFS, "HPFS", 4);
#endif // _WIN32_WCE
}
|