1 /* 7zMain.c - Test application for 7z Decoder
2 2018-04-19 : Igor Pavlov : Public domain */
3
4 #include "Precomp.h"
5
6 #include <stdio.h>
7 #include <string.h>
8
9 #include "../../CpuArch.h"
10
11 #include "../../7z.h"
12 #include "../../7zAlloc.h"
13 #include "../../7zBuf.h"
14 #include "../../7zCrc.h"
15 #include "../../7zFile.h"
16 #include "../../7zVersion.h"
17
18 #ifndef USE_WINDOWS_FILE
19 /* for mkdir */
20 #ifdef _WIN32
21 #include <direct.h>
22 #else
23 #include <sys/stat.h>
24 #include <errno.h>
25 #endif
26 #endif
27
28
29 #define kInputBufSize ((size_t)1 << 18)
30
31 static const ISzAlloc g_Alloc = { SzAlloc, SzFree };
32
33
Print(const char * s)34 static void Print(const char *s)
35 {
36 fputs(s, stdout);
37 }
38
39
Buf_EnsureSize(CBuf * dest,size_t size)40 static int Buf_EnsureSize(CBuf *dest, size_t size)
41 {
42 if (dest->size >= size)
43 return 1;
44 Buf_Free(dest, &g_Alloc);
45 return Buf_Create(dest, size, &g_Alloc);
46 }
47
48 #ifndef _WIN32
49 #define _USE_UTF8
50 #endif
51
52 /* #define _USE_UTF8 */
53
54 #ifdef _USE_UTF8
55
56 #define _UTF8_START(n) (0x100 - (1 << (7 - (n))))
57
58 #define _UTF8_RANGE(n) (((UInt32)1) << ((n) * 5 + 6))
59
60 #define _UTF8_HEAD(n, val) ((Byte)(_UTF8_START(n) + (val >> (6 * (n)))))
61 #define _UTF8_CHAR(n, val) ((Byte)(0x80 + (((val) >> (6 * (n))) & 0x3F)))
62
Utf16_To_Utf8_Calc(const UInt16 * src,const UInt16 * srcLim)63 static size_t Utf16_To_Utf8_Calc(const UInt16 *src, const UInt16 *srcLim)
64 {
65 size_t size = 0;
66 for (;;)
67 {
68 UInt32 val;
69 if (src == srcLim)
70 return size;
71
72 size++;
73 val = *src++;
74
75 if (val < 0x80)
76 continue;
77
78 if (val < _UTF8_RANGE(1))
79 {
80 size++;
81 continue;
82 }
83
84 if (val >= 0xD800 && val < 0xDC00 && src != srcLim)
85 {
86 UInt32 c2 = *src;
87 if (c2 >= 0xDC00 && c2 < 0xE000)
88 {
89 src++;
90 size += 3;
91 continue;
92 }
93 }
94
95 size += 2;
96 }
97 }
98
Utf16_To_Utf8(Byte * dest,const UInt16 * src,const UInt16 * srcLim)99 static Byte *Utf16_To_Utf8(Byte *dest, const UInt16 *src, const UInt16 *srcLim)
100 {
101 for (;;)
102 {
103 UInt32 val;
104 if (src == srcLim)
105 return dest;
106
107 val = *src++;
108
109 if (val < 0x80)
110 {
111 *dest++ = (char)val;
112 continue;
113 }
114
115 if (val < _UTF8_RANGE(1))
116 {
117 dest[0] = _UTF8_HEAD(1, val);
118 dest[1] = _UTF8_CHAR(0, val);
119 dest += 2;
120 continue;
121 }
122
123 if (val >= 0xD800 && val < 0xDC00 && src != srcLim)
124 {
125 UInt32 c2 = *src;
126 if (c2 >= 0xDC00 && c2 < 0xE000)
127 {
128 src++;
129 val = (((val - 0xD800) << 10) | (c2 - 0xDC00)) + 0x10000;
130 dest[0] = _UTF8_HEAD(3, val);
131 dest[1] = _UTF8_CHAR(2, val);
132 dest[2] = _UTF8_CHAR(1, val);
133 dest[3] = _UTF8_CHAR(0, val);
134 dest += 4;
135 continue;
136 }
137 }
138
139 dest[0] = _UTF8_HEAD(2, val);
140 dest[1] = _UTF8_CHAR(1, val);
141 dest[2] = _UTF8_CHAR(0, val);
142 dest += 3;
143 }
144 }
145
Utf16_To_Utf8Buf(CBuf * dest,const UInt16 * src,size_t srcLen)146 static SRes Utf16_To_Utf8Buf(CBuf *dest, const UInt16 *src, size_t srcLen)
147 {
148 size_t destLen = Utf16_To_Utf8_Calc(src, src + srcLen);
149 destLen += 1;
150 if (!Buf_EnsureSize(dest, destLen))
151 return SZ_ERROR_MEM;
152 *Utf16_To_Utf8(dest->data, src, src + srcLen) = 0;
153 return SZ_OK;
154 }
155
156 #endif
157
Utf16_To_Char(CBuf * buf,const UInt16 * s,UINT codePage)158 static SRes Utf16_To_Char(CBuf *buf, const UInt16 *s
159 #ifndef _USE_UTF8
160 , UINT codePage
161 #endif
162 )
163 {
164 unsigned len = 0;
165 for (len = 0; s[len] != 0; len++);
166
167 #ifndef _USE_UTF8
168 {
169 unsigned size = len * 3 + 100;
170 if (!Buf_EnsureSize(buf, size))
171 return SZ_ERROR_MEM;
172 {
173 buf->data[0] = 0;
174 if (len != 0)
175 {
176 char defaultChar = '_';
177 BOOL defUsed;
178 unsigned numChars = 0;
179 numChars = WideCharToMultiByte(codePage, 0, s, len, (char *)buf->data, size, &defaultChar, &defUsed);
180 if (numChars == 0 || numChars >= size)
181 return SZ_ERROR_FAIL;
182 buf->data[numChars] = 0;
183 }
184 return SZ_OK;
185 }
186 }
187 #else
188 return Utf16_To_Utf8Buf(buf, s, len);
189 #endif
190 }
191
192 #ifdef _WIN32
193 #ifndef USE_WINDOWS_FILE
194 static UINT g_FileCodePage = CP_ACP;
195 #endif
196 #define MY_FILE_CODE_PAGE_PARAM ,g_FileCodePage
197 #else
198 #define MY_FILE_CODE_PAGE_PARAM
199 #endif
200
MyCreateDir(const UInt16 * name)201 static WRes MyCreateDir(const UInt16 *name)
202 {
203 #ifdef USE_WINDOWS_FILE
204
205 return CreateDirectoryW(name, NULL) ? 0 : GetLastError();
206
207 #else
208
209 CBuf buf;
210 WRes res;
211 Buf_Init(&buf);
212 RINOK(Utf16_To_Char(&buf, name MY_FILE_CODE_PAGE_PARAM));
213
214 res =
215 #ifdef _WIN32
216 _mkdir((const char *)buf.data)
217 #else
218 mkdir((const char *)buf.data, 0777)
219 #endif
220 == 0 ? 0 : errno;
221 Buf_Free(&buf, &g_Alloc);
222 return res;
223
224 #endif
225 }
226
OutFile_OpenUtf16(CSzFile * p,const UInt16 * name)227 static WRes OutFile_OpenUtf16(CSzFile *p, const UInt16 *name)
228 {
229 #ifdef USE_WINDOWS_FILE
230 return OutFile_OpenW(p, name);
231 #else
232 CBuf buf;
233 WRes res;
234 Buf_Init(&buf);
235 RINOK(Utf16_To_Char(&buf, name MY_FILE_CODE_PAGE_PARAM));
236 res = OutFile_Open(p, (const char *)buf.data);
237 Buf_Free(&buf, &g_Alloc);
238 return res;
239 #endif
240 }
241
242
PrintString(const UInt16 * s)243 static SRes PrintString(const UInt16 *s)
244 {
245 CBuf buf;
246 SRes res;
247 Buf_Init(&buf);
248 res = Utf16_To_Char(&buf, s
249 #ifndef _USE_UTF8
250 , CP_OEMCP
251 #endif
252 );
253 if (res == SZ_OK)
254 Print((const char *)buf.data);
255 Buf_Free(&buf, &g_Alloc);
256 return res;
257 }
258
UInt64ToStr(UInt64 value,char * s,int numDigits)259 static void UInt64ToStr(UInt64 value, char *s, int numDigits)
260 {
261 char temp[32];
262 int pos = 0;
263 do
264 {
265 temp[pos++] = (char)('0' + (unsigned)(value % 10));
266 value /= 10;
267 }
268 while (value != 0);
269
270 for (numDigits -= pos; numDigits > 0; numDigits--)
271 *s++ = ' ';
272
273 do
274 *s++ = temp[--pos];
275 while (pos);
276 *s = '\0';
277 }
278
UIntToStr(char * s,unsigned value,int numDigits)279 static char *UIntToStr(char *s, unsigned value, int numDigits)
280 {
281 char temp[16];
282 int pos = 0;
283 do
284 temp[pos++] = (char)('0' + (value % 10));
285 while (value /= 10);
286
287 for (numDigits -= pos; numDigits > 0; numDigits--)
288 *s++ = '0';
289
290 do
291 *s++ = temp[--pos];
292 while (pos);
293 *s = '\0';
294 return s;
295 }
296
UIntToStr_2(char * s,unsigned value)297 static void UIntToStr_2(char *s, unsigned value)
298 {
299 s[0] = (char)('0' + (value / 10));
300 s[1] = (char)('0' + (value % 10));
301 }
302
303 #define PERIOD_4 (4 * 365 + 1)
304 #define PERIOD_100 (PERIOD_4 * 25 - 1)
305 #define PERIOD_400 (PERIOD_100 * 4 + 1)
306
ConvertFileTimeToString(const CNtfsFileTime * nt,char * s)307 static void ConvertFileTimeToString(const CNtfsFileTime *nt, char *s)
308 {
309 unsigned year, mon, hour, min, sec;
310 Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
311 unsigned t;
312 UInt32 v;
313 UInt64 v64 = nt->Low | ((UInt64)nt->High << 32);
314 v64 /= 10000000;
315 sec = (unsigned)(v64 % 60); v64 /= 60;
316 min = (unsigned)(v64 % 60); v64 /= 60;
317 hour = (unsigned)(v64 % 24); v64 /= 24;
318
319 v = (UInt32)v64;
320
321 year = (unsigned)(1601 + v / PERIOD_400 * 400);
322 v %= PERIOD_400;
323
324 t = v / PERIOD_100; if (t == 4) t = 3; year += t * 100; v -= t * PERIOD_100;
325 t = v / PERIOD_4; if (t == 25) t = 24; year += t * 4; v -= t * PERIOD_4;
326 t = v / 365; if (t == 4) t = 3; year += t; v -= t * 365;
327
328 if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))
329 ms[1] = 29;
330 for (mon = 0;; mon++)
331 {
332 unsigned d = ms[mon];
333 if (v < d)
334 break;
335 v -= d;
336 }
337 s = UIntToStr(s, year, 4); *s++ = '-';
338 UIntToStr_2(s, mon + 1); s[2] = '-'; s += 3;
339 UIntToStr_2(s, (unsigned)v + 1); s[2] = ' '; s += 3;
340 UIntToStr_2(s, hour); s[2] = ':'; s += 3;
341 UIntToStr_2(s, min); s[2] = ':'; s += 3;
342 UIntToStr_2(s, sec); s[2] = 0;
343 }
344
PrintLF()345 static void PrintLF()
346 {
347 Print("\n");
348 }
349
PrintError(char * s)350 static void PrintError(char *s)
351 {
352 Print("\nERROR: ");
353 Print(s);
354 PrintLF();
355 }
356
GetAttribString(UInt32 wa,Bool isDir,char * s)357 static void GetAttribString(UInt32 wa, Bool isDir, char *s)
358 {
359 #ifdef USE_WINDOWS_FILE
360 s[0] = (char)(((wa & FILE_ATTRIBUTE_DIRECTORY) != 0 || isDir) ? 'D' : '.');
361 s[1] = (char)(((wa & FILE_ATTRIBUTE_READONLY ) != 0) ? 'R': '.');
362 s[2] = (char)(((wa & FILE_ATTRIBUTE_HIDDEN ) != 0) ? 'H': '.');
363 s[3] = (char)(((wa & FILE_ATTRIBUTE_SYSTEM ) != 0) ? 'S': '.');
364 s[4] = (char)(((wa & FILE_ATTRIBUTE_ARCHIVE ) != 0) ? 'A': '.');
365 s[5] = 0;
366 #else
367 s[0] = (char)(((wa & (1 << 4)) != 0 || isDir) ? 'D' : '.');
368 s[1] = 0;
369 #endif
370 }
371
372
373 // #define NUM_PARENTS_MAX 128
374
main(int numargs,char * args[])375 int MY_CDECL main(int numargs, char *args[])
376 {
377 ISzAlloc allocImp;
378 ISzAlloc allocTempImp;
379
380 CFileInStream archiveStream;
381 CLookToRead2 lookStream;
382 CSzArEx db;
383 SRes res;
384 UInt16 *temp = NULL;
385 size_t tempSize = 0;
386 // UInt32 parents[NUM_PARENTS_MAX];
387
388 Print("\n7z Decoder " MY_VERSION_CPU " : " MY_COPYRIGHT_DATE "\n\n");
389
390 if (numargs == 1)
391 {
392 Print(
393 "Usage: 7zDec <command> <archive_name>\n\n"
394 "<Commands>\n"
395 " e: Extract files from archive (without using directory names)\n"
396 " l: List contents of archive\n"
397 " t: Test integrity of archive\n"
398 " x: eXtract files with full paths\n");
399 return 0;
400 }
401
402 if (numargs < 3)
403 {
404 PrintError("incorrect command");
405 return 1;
406 }
407
408 #if defined(_WIN32) && !defined(USE_WINDOWS_FILE) && !defined(UNDER_CE)
409 g_FileCodePage = AreFileApisANSI() ? CP_ACP : CP_OEMCP;
410 #endif
411
412
413 allocImp = g_Alloc;
414 allocTempImp = g_Alloc;
415
416 #ifdef UNDER_CE
417 if (InFile_OpenW(&archiveStream.file, L"\test.7z"))
418 #else
419 if (InFile_Open(&archiveStream.file, args[2]))
420 #endif
421 {
422 PrintError("can not open input file");
423 return 1;
424 }
425
426 FileInStream_CreateVTable(&archiveStream);
427 LookToRead2_CreateVTable(&lookStream, False);
428 lookStream.buf = NULL;
429
430 res = SZ_OK;
431
432 {
433 lookStream.buf = ISzAlloc_Alloc(&allocImp, kInputBufSize);
434 if (!lookStream.buf)
435 res = SZ_ERROR_MEM;
436 else
437 {
438 lookStream.bufSize = kInputBufSize;
439 lookStream.realStream = &archiveStream.vt;
440 LookToRead2_Init(&lookStream);
441 }
442 }
443
444 CrcGenerateTable();
445
446 SzArEx_Init(&db);
447
448 if (res == SZ_OK)
449 {
450 res = SzArEx_Open(&db, &lookStream.vt, &allocImp, &allocTempImp);
451 }
452
453 if (res == SZ_OK)
454 {
455 char *command = args[1];
456 int listCommand = 0, testCommand = 0, fullPaths = 0;
457
458 if (strcmp(command, "l") == 0) listCommand = 1;
459 else if (strcmp(command, "t") == 0) testCommand = 1;
460 else if (strcmp(command, "e") == 0) { }
461 else if (strcmp(command, "x") == 0) { fullPaths = 1; }
462 else
463 {
464 PrintError("incorrect command");
465 res = SZ_ERROR_FAIL;
466 }
467
468 if (res == SZ_OK)
469 {
470 UInt32 i;
471
472 /*
473 if you need cache, use these 3 variables.
474 if you use external function, you can make these variable as static.
475 */
476 UInt32 blockIndex = 0xFFFFFFFF; /* it can have any value before first call (if outBuffer = 0) */
477 Byte *outBuffer = 0; /* it must be 0 before first call for each new archive. */
478 size_t outBufferSize = 0; /* it can have any value before first call (if outBuffer = 0) */
479
480 for (i = 0; i < db.NumFiles; i++)
481 {
482 size_t offset = 0;
483 size_t outSizeProcessed = 0;
484 // const CSzFileItem *f = db.Files + i;
485 size_t len;
486 unsigned isDir = SzArEx_IsDir(&db, i);
487 if (listCommand == 0 && isDir && !fullPaths)
488 continue;
489 len = SzArEx_GetFileNameUtf16(&db, i, NULL);
490 // len = SzArEx_GetFullNameLen(&db, i);
491
492 if (len > tempSize)
493 {
494 SzFree(NULL, temp);
495 tempSize = len;
496 temp = (UInt16 *)SzAlloc(NULL, tempSize * sizeof(temp[0]));
497 if (!temp)
498 {
499 res = SZ_ERROR_MEM;
500 break;
501 }
502 }
503
504 SzArEx_GetFileNameUtf16(&db, i, temp);
505 /*
506 if (SzArEx_GetFullNameUtf16_Back(&db, i, temp + len) != temp)
507 {
508 res = SZ_ERROR_FAIL;
509 break;
510 }
511 */
512
513 if (listCommand)
514 {
515 char attr[8], s[32], t[32];
516 UInt64 fileSize;
517
518 GetAttribString(SzBitWithVals_Check(&db.Attribs, i) ? db.Attribs.Vals[i] : 0, isDir, attr);
519
520 fileSize = SzArEx_GetFileSize(&db, i);
521 UInt64ToStr(fileSize, s, 10);
522
523 if (SzBitWithVals_Check(&db.MTime, i))
524 ConvertFileTimeToString(&db.MTime.Vals[i], t);
525 else
526 {
527 size_t j;
528 for (j = 0; j < 19; j++)
529 t[j] = ' ';
530 t[j] = '\0';
531 }
532
533 Print(t);
534 Print(" ");
535 Print(attr);
536 Print(" ");
537 Print(s);
538 Print(" ");
539 res = PrintString(temp);
540 if (res != SZ_OK)
541 break;
542 if (isDir)
543 Print("/");
544 PrintLF();
545 continue;
546 }
547
548 Print(testCommand ?
549 "Testing ":
550 "Extracting ");
551 res = PrintString(temp);
552 if (res != SZ_OK)
553 break;
554
555 if (isDir)
556 Print("/");
557 else
558 {
559 res = SzArEx_Extract(&db, &lookStream.vt, i,
560 &blockIndex, &outBuffer, &outBufferSize,
561 &offset, &outSizeProcessed,
562 &allocImp, &allocTempImp);
563 if (res != SZ_OK)
564 break;
565 }
566
567 if (!testCommand)
568 {
569 CSzFile outFile;
570 size_t processedSize;
571 size_t j;
572 UInt16 *name = (UInt16 *)temp;
573 const UInt16 *destPath = (const UInt16 *)name;
574
575 for (j = 0; name[j] != 0; j++)
576 if (name[j] == '/')
577 {
578 if (fullPaths)
579 {
580 name[j] = 0;
581 MyCreateDir(name);
582 name[j] = CHAR_PATH_SEPARATOR;
583 }
584 else
585 destPath = name + j + 1;
586 }
587
588 if (isDir)
589 {
590 MyCreateDir(destPath);
591 PrintLF();
592 continue;
593 }
594 else if (OutFile_OpenUtf16(&outFile, destPath))
595 {
596 PrintError("can not open output file");
597 res = SZ_ERROR_FAIL;
598 break;
599 }
600
601 processedSize = outSizeProcessed;
602
603 if (File_Write(&outFile, outBuffer + offset, &processedSize) != 0 || processedSize != outSizeProcessed)
604 {
605 PrintError("can not write output file");
606 res = SZ_ERROR_FAIL;
607 break;
608 }
609
610 #ifdef USE_WINDOWS_FILE
611 {
612 FILETIME mtime, ctime;
613 FILETIME *mtimePtr = NULL;
614 FILETIME *ctimePtr = NULL;
615
616 if (SzBitWithVals_Check(&db.MTime, i))
617 {
618 const CNtfsFileTime *t = &db.MTime.Vals[i];
619 mtime.dwLowDateTime = (DWORD)(t->Low);
620 mtime.dwHighDateTime = (DWORD)(t->High);
621 mtimePtr = &mtime;
622 }
623 if (SzBitWithVals_Check(&db.CTime, i))
624 {
625 const CNtfsFileTime *t = &db.CTime.Vals[i];
626 ctime.dwLowDateTime = (DWORD)(t->Low);
627 ctime.dwHighDateTime = (DWORD)(t->High);
628 ctimePtr = &ctime;
629 }
630 if (mtimePtr || ctimePtr)
631 SetFileTime(outFile.handle, ctimePtr, NULL, mtimePtr);
632 }
633 #endif
634
635 if (File_Close(&outFile))
636 {
637 PrintError("can not close output file");
638 res = SZ_ERROR_FAIL;
639 break;
640 }
641
642 #ifdef USE_WINDOWS_FILE
643 if (SzBitWithVals_Check(&db.Attribs, i))
644 {
645 UInt32 attrib = db.Attribs.Vals[i];
646 /* p7zip stores posix attributes in high 16 bits and adds 0x8000 as marker.
647 We remove posix bits, if we detect posix mode field */
648 if ((attrib & 0xF0000000) != 0)
649 attrib &= 0x7FFF;
650 SetFileAttributesW(destPath, attrib);
651 }
652 #endif
653 }
654 PrintLF();
655 }
656 ISzAlloc_Free(&allocImp, outBuffer);
657 }
658 }
659
660 SzFree(NULL, temp);
661 SzArEx_Free(&db, &allocImp);
662 ISzAlloc_Free(&allocImp, lookStream.buf);
663
664 File_Close(&archiveStream.file);
665
666 if (res == SZ_OK)
667 {
668 Print("\nEverything is Ok\n");
669 return 0;
670 }
671
672 if (res == SZ_ERROR_UNSUPPORTED)
673 PrintError("decoder doesn't support this archive");
674 else if (res == SZ_ERROR_MEM)
675 PrintError("can not allocate memory");
676 else if (res == SZ_ERROR_CRC)
677 PrintError("CRC error");
678 else
679 {
680 char s[32];
681 UInt64ToStr(res, s, 0);
682 PrintError(s);
683 }
684
685 return 1;
686 }
687