1/*
2   minizip.c
3   Version 1.1, February 14h, 2010
4   sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
5
6         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
7
8         Modifications of Unzip for Zip64
9         Copyright (C) 2007-2008 Even Rouault
10
11         Modifications for Zip64 support on both zip and unzip
12         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
13*/
14
15
16#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
17        #ifndef __USE_FILE_OFFSET64
18                #define __USE_FILE_OFFSET64
19        #endif
20        #ifndef __USE_LARGEFILE64
21                #define __USE_LARGEFILE64
22        #endif
23        #ifndef _LARGEFILE64_SOURCE
24                #define _LARGEFILE64_SOURCE
25        #endif
26        #ifndef _FILE_OFFSET_BIT
27                #define _FILE_OFFSET_BIT 64
28        #endif
29#endif
30
31#ifdef __APPLE__
32// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
33#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
34#define FTELLO_FUNC(stream) ftello(stream)
35#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
36#else
37#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
38#define FTELLO_FUNC(stream) ftello64(stream)
39#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
40#endif
41
42
43
44#include <stdio.h>
45#include <stdlib.h>
46#include <string.h>
47#include <time.h>
48#include <errno.h>
49#include <fcntl.h>
50
51#ifdef _WIN32
52# include <direct.h>
53# include <io.h>
54#else
55# include <unistd.h>
56# include <utime.h>
57# include <sys/types.h>
58# include <sys/stat.h>
59#endif
60
61#include "zip.h"
62
63#ifdef _WIN32
64        #define USEWIN32IOAPI
65        #include "iowin32.h"
66#endif
67
68
69
70#define WRITEBUFFERSIZE (16384)
71#define MAXFILENAME (256)
72
73#ifdef _WIN32
74uLong filetime(f, tmzip, dt)
75    char *f;                /* name of file to get info on */
76    tm_zip *tmzip;             /* return value: access, modific. and creation times */
77    uLong *dt;             /* dostime */
78{
79  int ret = 0;
80  {
81      FILETIME ftLocal;
82      HANDLE hFind;
83      WIN32_FIND_DATAA ff32;
84
85      hFind = FindFirstFileA(f,&ff32);
86      if (hFind != INVALID_HANDLE_VALUE)
87      {
88        FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
89        FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
90        FindClose(hFind);
91        ret = 1;
92      }
93  }
94  return ret;
95}
96#else
97#ifdef unix || __APPLE__
98uLong filetime(f, tmzip, dt)
99    char *f;               /* name of file to get info on */
100    tm_zip *tmzip;         /* return value: access, modific. and creation times */
101    uLong *dt;             /* dostime */
102{
103  int ret=0;
104  struct stat s;        /* results of stat() */
105  struct tm* filedate;
106  time_t tm_t=0;
107
108  if (strcmp(f,"-")!=0)
109  {
110    char name[MAXFILENAME+1];
111    int len = strlen(f);
112    if (len > MAXFILENAME)
113      len = MAXFILENAME;
114
115    strncpy(name, f,MAXFILENAME-1);
116    /* strncpy doesnt append the trailing NULL, of the string is too long. */
117    name[ MAXFILENAME ] = '\0';
118
119    if (name[len - 1] == '/')
120      name[len - 1] = '\0';
121    /* not all systems allow stat'ing a file with / appended */
122    if (stat(name,&s)==0)
123    {
124      tm_t = s.st_mtime;
125      ret = 1;
126    }
127  }
128  filedate = localtime(&tm_t);
129
130  tmzip->tm_sec  = filedate->tm_sec;
131  tmzip->tm_min  = filedate->tm_min;
132  tmzip->tm_hour = filedate->tm_hour;
133  tmzip->tm_mday = filedate->tm_mday;
134  tmzip->tm_mon  = filedate->tm_mon ;
135  tmzip->tm_year = filedate->tm_year;
136
137  return ret;
138}
139#else
140uLong filetime(f, tmzip, dt)
141    char *f;                /* name of file to get info on */
142    tm_zip *tmzip;             /* return value: access, modific. and creation times */
143    uLong *dt;             /* dostime */
144{
145    return 0;
146}
147#endif
148#endif
149
150
151
152
153int check_exist_file(filename)
154    const char* filename;
155{
156    FILE* ftestexist;
157    int ret = 1;
158    ftestexist = FOPEN_FUNC(filename,"rb");
159    if (ftestexist==NULL)
160        ret = 0;
161    else
162        fclose(ftestexist);
163    return ret;
164}
165
166void do_banner()
167{
168    printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
169    printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
170}
171
172void do_help()
173{
174    printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
175           "  -o  Overwrite existing file.zip\n" \
176           "  -a  Append to existing file.zip\n" \
177           "  -0  Store only\n" \
178           "  -1  Compress faster\n" \
179           "  -9  Compress better\n\n" \
180           "  -j  exclude path. store only the file name.\n\n");
181}
182
183/* calculate the CRC32 of a file,
184   because to encrypt a file, we need known the CRC32 of the file before */
185int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc)
186{
187   unsigned long calculate_crc=0;
188   int err=ZIP_OK;
189   FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
190
191   unsigned long size_read = 0;
192   unsigned long total_read = 0;
193   if (fin==NULL)
194   {
195       err = ZIP_ERRNO;
196   }
197
198    if (err == ZIP_OK)
199        do
200        {
201            err = ZIP_OK;
202            size_read = (int)fread(buf,1,size_buf,fin);
203            if (size_read < size_buf)
204                if (feof(fin)==0)
205            {
206                printf("error in reading %s\n",filenameinzip);
207                err = ZIP_ERRNO;
208            }
209
210            if (size_read>0)
211                calculate_crc = crc32(calculate_crc,buf,size_read);
212            total_read += size_read;
213
214        } while ((err == ZIP_OK) && (size_read>0));
215
216    if (fin)
217        fclose(fin);
218
219    *result_crc=calculate_crc;
220    printf("file %s crc %lx\n", filenameinzip, calculate_crc);
221    return err;
222}
223
224int isLargeFile(const char* filename)
225{
226  int largeFile = 0;
227  ZPOS64_T pos = 0;
228  FILE* pFile = FOPEN_FUNC(filename, "rb");
229
230  if(pFile != NULL)
231  {
232    int n = FSEEKO_FUNC(pFile, 0, SEEK_END);
233    pos = FTELLO_FUNC(pFile);
234
235                printf("File : %s is %lld bytes\n", filename, pos);
236
237    if(pos >= 0xffffffff)
238     largeFile = 1;
239
240                fclose(pFile);
241  }
242
243 return largeFile;
244}
245
246int main(argc,argv)
247    int argc;
248    char *argv[];
249{
250    int i;
251    int opt_overwrite=0;
252    int opt_compress_level=Z_DEFAULT_COMPRESSION;
253    int opt_exclude_path=0;
254    int zipfilenamearg = 0;
255    char filename_try[MAXFILENAME+16];
256    int zipok;
257    int err=0;
258    int size_buf=0;
259    void* buf=NULL;
260    const char* password=NULL;
261
262
263    do_banner();
264    if (argc==1)
265    {
266        do_help();
267        return 0;
268    }
269    else
270    {
271        for (i=1;i<argc;i++)
272        {
273            if ((*argv[i])=='-')
274            {
275                const char *p=argv[i]+1;
276
277                while ((*p)!='\0')
278                {
279                    char c=*(p++);;
280                    if ((c=='o') || (c=='O'))
281                        opt_overwrite = 1;
282                    if ((c=='a') || (c=='A'))
283                        opt_overwrite = 2;
284                    if ((c>='0') && (c<='9'))
285                        opt_compress_level = c-'0';
286                    if ((c=='j') || (c=='J'))
287                        opt_exclude_path = 1;
288
289                    if (((c=='p') || (c=='P')) && (i+1<argc))
290                    {
291                        password=argv[i+1];
292                        i++;
293                    }
294                }
295            }
296            else
297            {
298                if (zipfilenamearg == 0)
299                {
300                    zipfilenamearg = i ;
301                }
302            }
303        }
304    }
305
306    size_buf = WRITEBUFFERSIZE;
307    buf = (void*)malloc(size_buf);
308    if (buf==NULL)
309    {
310        printf("Error allocating memory\n");
311        return ZIP_INTERNALERROR;
312    }
313
314    if (zipfilenamearg==0)
315    {
316        zipok=0;
317    }
318    else
319    {
320        int i,len;
321        int dot_found=0;
322
323        zipok = 1 ;
324        strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
325        /* strncpy doesnt append the trailing NULL, of the string is too long. */
326        filename_try[ MAXFILENAME ] = '\0';
327
328        len=(int)strlen(filename_try);
329        for (i=0;i<len;i++)
330            if (filename_try[i]=='.')
331                dot_found=1;
332
333        if (dot_found==0)
334            strcat(filename_try,".zip");
335
336        if (opt_overwrite==2)
337        {
338            /* if the file don't exist, we not append file */
339            if (check_exist_file(filename_try)==0)
340                opt_overwrite=1;
341        }
342        else
343        if (opt_overwrite==0)
344            if (check_exist_file(filename_try)!=0)
345            {
346                char rep=0;
347                do
348                {
349                    char answer[128];
350                    int ret;
351                    printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
352                    ret = scanf("%1s",answer);
353                    if (ret != 1)
354                    {
355                       exit(EXIT_FAILURE);
356                    }
357                    rep = answer[0] ;
358                    if ((rep>='a') && (rep<='z'))
359                        rep -= 0x20;
360                }
361                while ((rep!='Y') && (rep!='N') && (rep!='A'));
362                if (rep=='N')
363                    zipok = 0;
364                if (rep=='A')
365                    opt_overwrite = 2;
366            }
367    }
368
369    if (zipok==1)
370    {
371        zipFile zf;
372        int errclose;
373#        ifdef USEWIN32IOAPI
374        zlib_filefunc64_def ffunc;
375        fill_win32_filefunc64A(&ffunc);
376        zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
377#        else
378        zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
379#        endif
380
381        if (zf == NULL)
382        {
383            printf("error opening %s\n",filename_try);
384            err= ZIP_ERRNO;
385        }
386        else
387            printf("creating %s\n",filename_try);
388
389        for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
390        {
391            if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
392                  ((argv[i][1]=='o') || (argv[i][1]=='O') ||
393                   (argv[i][1]=='a') || (argv[i][1]=='A') ||
394                   (argv[i][1]=='p') || (argv[i][1]=='P') ||
395                   ((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
396                  (strlen(argv[i]) == 2)))
397            {
398                FILE * fin;
399                int size_read;
400                const char* filenameinzip = argv[i];
401                const char *savefilenameinzip;
402                zip_fileinfo zi;
403                unsigned long crcFile=0;
404                int zip64 = 0;
405
406                zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
407                zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
408                zi.dosDate = 0;
409                zi.internal_fa = 0;
410                zi.external_fa = 0;
411                filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
412
413/*
414                err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
415                                 NULL,0,NULL,0,NULL / * comment * /,
416                                 (opt_compress_level != 0) ? Z_DEFLATED : 0,
417                                 opt_compress_level);
418*/
419                if ((password != NULL) && (err==ZIP_OK))
420                    err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
421
422                zip64 = isLargeFile(filenameinzip);
423
424                                                         /* The path name saved, should not include a leading slash. */
425               /*if it did, windows/xp and dynazip couldn't read the zip file. */
426                 savefilenameinzip = filenameinzip;
427                 while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
428                 {
429                     savefilenameinzip++;
430                 }
431
432                 /*should the zip file contain any path at all?*/
433                 if( opt_exclude_path )
434                 {
435                     const char *tmpptr;
436                     const char *lastslash = 0;
437                     for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
438                     {
439                         if( *tmpptr == '\\' || *tmpptr == '/')
440                         {
441                             lastslash = tmpptr;
442                         }
443                     }
444                     if( lastslash != NULL )
445                     {
446                         savefilenameinzip = lastslash+1; // base filename follows last slash.
447                     }
448                 }
449
450                 /**/
451                err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
452                                 NULL,0,NULL,0,NULL /* comment*/,
453                                 (opt_compress_level != 0) ? Z_DEFLATED : 0,
454                                 opt_compress_level,0,
455                                 /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
456                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
457                                 password,crcFile, zip64);
458
459                if (err != ZIP_OK)
460                    printf("error in opening %s in zipfile\n",filenameinzip);
461                else
462                {
463                    fin = FOPEN_FUNC(filenameinzip,"rb");
464                    if (fin==NULL)
465                    {
466                        err=ZIP_ERRNO;
467                        printf("error in opening %s for reading\n",filenameinzip);
468                    }
469                }
470
471                if (err == ZIP_OK)
472                    do
473                    {
474                        err = ZIP_OK;
475                        size_read = (int)fread(buf,1,size_buf,fin);
476                        if (size_read < size_buf)
477                            if (feof(fin)==0)
478                        {
479                            printf("error in reading %s\n",filenameinzip);
480                            err = ZIP_ERRNO;
481                        }
482
483                        if (size_read>0)
484                        {
485                            err = zipWriteInFileInZip (zf,buf,size_read);
486                            if (err<0)
487                            {
488                                printf("error in writing %s in the zipfile\n",
489                                                 filenameinzip);
490                            }
491
492                        }
493                    } while ((err == ZIP_OK) && (size_read>0));
494
495                if (fin)
496                    fclose(fin);
497
498                if (err<0)
499                    err=ZIP_ERRNO;
500                else
501                {
502                    err = zipCloseFileInZip(zf);
503                    if (err!=ZIP_OK)
504                        printf("error in closing %s in the zipfile\n",
505                                    filenameinzip);
506                }
507            }
508        }
509        errclose = zipClose(zf,NULL);
510        if (errclose != ZIP_OK)
511            printf("error in closing %s\n",filename_try);
512    }
513    else
514    {
515       do_help();
516    }
517
518    free(buf);
519    return 0;
520}
521