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| 1 /* |
| 2 miniunz.c |
| 3 Version 1.01e, February 12th, 2005 |
| 4 |
| 5 Copyright (C) 1998-2005 Gilles Vollant |
| 6 */ |
| 7 |
| 8 |
| 9 #include <stdio.h> |
| 10 #include <stdlib.h> |
| 11 #include <string.h> |
| 12 #include <time.h> |
| 13 #include <errno.h> |
| 14 #include <fcntl.h> |
| 15 |
| 16 #ifdef unix |
| 17 # include <unistd.h> |
| 18 # include <utime.h> |
| 19 #else |
| 20 # include <direct.h> |
| 21 # include <io.h> |
| 22 #endif |
| 23 |
| 24 #include "unzip.h" |
| 25 |
| 26 #define CASESENSITIVITY (0) |
| 27 #define WRITEBUFFERSIZE (8192) |
| 28 #define MAXFILENAME (256) |
| 29 |
| 30 #ifdef WIN32 |
| 31 #define USEWIN32IOAPI |
| 32 #include "iowin32.h" |
| 33 #endif |
| 34 /* |
| 35 mini unzip, demo of unzip package |
| 36 |
| 37 usage : |
| 38 Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir] |
| 39 |
| 40 list the file in the zipfile, and print the content of FILE_ID.ZIP or README.T
XT |
| 41 if it exists |
| 42 */ |
| 43 |
| 44 |
| 45 /* change_file_date : change the date/time of a file |
| 46 filename : the filename of the file where date/time must be modified |
| 47 dosdate : the new date at the MSDos format (4 bytes) |
| 48 tmu_date : the SAME new date at the tm_unz format */ |
| 49 void change_file_date(filename,dosdate,tmu_date) |
| 50 const char *filename; |
| 51 uLong dosdate; |
| 52 tm_unz tmu_date; |
| 53 { |
| 54 #ifdef WIN32 |
| 55 HANDLE hFile; |
| 56 FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite; |
| 57 |
| 58 hFile = CreateFile(filename,GENERIC_READ | GENERIC_WRITE, |
| 59 0,NULL,OPEN_EXISTING,0,NULL); |
| 60 GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite); |
| 61 DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal); |
| 62 LocalFileTimeToFileTime(&ftLocal,&ftm); |
| 63 SetFileTime(hFile,&ftm,&ftLastAcc,&ftm); |
| 64 CloseHandle(hFile); |
| 65 #else |
| 66 #ifdef unix |
| 67 struct utimbuf ut; |
| 68 struct tm newdate; |
| 69 newdate.tm_sec = tmu_date.tm_sec; |
| 70 newdate.tm_min=tmu_date.tm_min; |
| 71 newdate.tm_hour=tmu_date.tm_hour; |
| 72 newdate.tm_mday=tmu_date.tm_mday; |
| 73 newdate.tm_mon=tmu_date.tm_mon; |
| 74 if (tmu_date.tm_year > 1900) |
| 75 newdate.tm_year=tmu_date.tm_year - 1900; |
| 76 else |
| 77 newdate.tm_year=tmu_date.tm_year ; |
| 78 newdate.tm_isdst=-1; |
| 79 |
| 80 ut.actime=ut.modtime=mktime(&newdate); |
| 81 utime(filename,&ut); |
| 82 #endif |
| 83 #endif |
| 84 } |
| 85 |
| 86 |
| 87 /* mymkdir and change_file_date are not 100 % portable |
| 88 As I don't know well Unix, I wait feedback for the unix portion */ |
| 89 |
| 90 int mymkdir(dirname) |
| 91 const char* dirname; |
| 92 { |
| 93 int ret=0; |
| 94 #ifdef WIN32 |
| 95 ret = mkdir(dirname); |
| 96 #else |
| 97 #ifdef unix |
| 98 ret = mkdir (dirname,0775); |
| 99 #endif |
| 100 #endif |
| 101 return ret; |
| 102 } |
| 103 |
| 104 int makedir (newdir) |
| 105 char *newdir; |
| 106 { |
| 107 char *buffer ; |
| 108 char *p; |
| 109 int len = (int)strlen(newdir); |
| 110 |
| 111 if (len <= 0) |
| 112 return 0; |
| 113 |
| 114 buffer = (char*)malloc(len+1); |
| 115 strcpy(buffer,newdir); |
| 116 |
| 117 if (buffer[len-1] == '/') { |
| 118 buffer[len-1] = '\0'; |
| 119 } |
| 120 if (mymkdir(buffer) == 0) |
| 121 { |
| 122 free(buffer); |
| 123 return 1; |
| 124 } |
| 125 |
| 126 p = buffer+1; |
| 127 while (1) |
| 128 { |
| 129 char hold; |
| 130 |
| 131 while(*p && *p != '\\' && *p != '/') |
| 132 p++; |
| 133 hold = *p; |
| 134 *p = 0; |
| 135 if ((mymkdir(buffer) == -1) && (errno == ENOENT)) |
| 136 { |
| 137 printf("couldn't create directory %s\n",buffer); |
| 138 free(buffer); |
| 139 return 0; |
| 140 } |
| 141 if (hold == 0) |
| 142 break; |
| 143 *p++ = hold; |
| 144 } |
| 145 free(buffer); |
| 146 return 1; |
| 147 } |
| 148 |
| 149 void do_banner() |
| 150 { |
| 151 printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\
n"); |
| 152 printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); |
| 153 } |
| 154 |
| 155 void do_help() |
| 156 { |
| 157 printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [fil
e_to_extr.] [-d extractdir]\n\n" \ |
| 158 " -e Extract without pathname (junk paths)\n" \ |
| 159 " -x Extract with pathname\n" \ |
| 160 " -v list files\n" \ |
| 161 " -l list files\n" \ |
| 162 " -d directory to extract into\n" \ |
| 163 " -o overwrite files without prompting\n" \ |
| 164 " -p extract crypted file using password\n\n"); |
| 165 } |
| 166 |
| 167 |
| 168 int do_list(uf) |
| 169 unzFile uf; |
| 170 { |
| 171 uLong i; |
| 172 unz_global_info gi; |
| 173 int err; |
| 174 |
| 175 err = unzGetGlobalInfo (uf,&gi); |
| 176 if (err!=UNZ_OK) |
| 177 printf("error %d with zipfile in unzGetGlobalInfo \n",err); |
| 178 printf(" Length Method Size Ratio Date Time CRC-32 Name\n"); |
| 179 printf(" ------ ------ ---- ----- ---- ---- ------ ----\n"); |
| 180 for (i=0;i<gi.number_entry;i++) |
| 181 { |
| 182 char filename_inzip[256]; |
| 183 unz_file_info file_info; |
| 184 uLong ratio=0; |
| 185 const char *string_method; |
| 186 char charCrypt=' '; |
| 187 err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename
_inzip),NULL,0,NULL,0); |
| 188 if (err!=UNZ_OK) |
| 189 { |
| 190 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); |
| 191 break; |
| 192 } |
| 193 if (file_info.uncompressed_size>0) |
| 194 ratio = (file_info.compressed_size*100)/file_info.uncompressed_size; |
| 195 |
| 196 /* display a '*' if the file is crypted */ |
| 197 if ((file_info.flag & 1) != 0) |
| 198 charCrypt='*'; |
| 199 |
| 200 if (file_info.compression_method==0) |
| 201 string_method="Stored"; |
| 202 else |
| 203 if (file_info.compression_method==Z_DEFLATED) |
| 204 { |
| 205 uInt iLevel=(uInt)((file_info.flag & 0x6)/2); |
| 206 if (iLevel==0) |
| 207 string_method="Defl:N"; |
| 208 else if (iLevel==1) |
| 209 string_method="Defl:X"; |
| 210 else if ((iLevel==2) || (iLevel==3)) |
| 211 string_method="Defl:F"; /* 2:fast , 3 : extra fast*/ |
| 212 } |
| 213 else |
| 214 string_method="Unkn. "; |
| 215 |
| 216 printf("%7lu %6s%c%7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.
8lx %s\n", |
| 217 file_info.uncompressed_size,string_method, |
| 218 charCrypt, |
| 219 file_info.compressed_size, |
| 220 ratio, |
| 221 (uLong)file_info.tmu_date.tm_mon + 1, |
| 222 (uLong)file_info.tmu_date.tm_mday, |
| 223 (uLong)file_info.tmu_date.tm_year % 100, |
| 224 (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_m
in, |
| 225 (uLong)file_info.crc,filename_inzip); |
| 226 if ((i+1)<gi.number_entry) |
| 227 { |
| 228 err = unzGoToNextFile(uf); |
| 229 if (err!=UNZ_OK) |
| 230 { |
| 231 printf("error %d with zipfile in unzGoToNextFile\n",err); |
| 232 break; |
| 233 } |
| 234 } |
| 235 } |
| 236 |
| 237 return 0; |
| 238 } |
| 239 |
| 240 |
| 241 int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password) |
| 242 unzFile uf; |
| 243 const int* popt_extract_without_path; |
| 244 int* popt_overwrite; |
| 245 const char* password; |
| 246 { |
| 247 char filename_inzip[256]; |
| 248 char* filename_withoutpath; |
| 249 char* p; |
| 250 int err=UNZ_OK; |
| 251 FILE *fout=NULL; |
| 252 void* buf; |
| 253 uInt size_buf; |
| 254 |
| 255 unz_file_info file_info; |
| 256 uLong ratio=0; |
| 257 err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inz
ip),NULL,0,NULL,0); |
| 258 |
| 259 if (err!=UNZ_OK) |
| 260 { |
| 261 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); |
| 262 return err; |
| 263 } |
| 264 |
| 265 size_buf = WRITEBUFFERSIZE; |
| 266 buf = (void*)malloc(size_buf); |
| 267 if (buf==NULL) |
| 268 { |
| 269 printf("Error allocating memory\n"); |
| 270 return UNZ_INTERNALERROR; |
| 271 } |
| 272 |
| 273 p = filename_withoutpath = filename_inzip; |
| 274 while ((*p) != '\0') |
| 275 { |
| 276 if (((*p)=='/') || ((*p)=='\\')) |
| 277 filename_withoutpath = p+1; |
| 278 p++; |
| 279 } |
| 280 |
| 281 if ((*filename_withoutpath)=='\0') |
| 282 { |
| 283 if ((*popt_extract_without_path)==0) |
| 284 { |
| 285 printf("creating directory: %s\n",filename_inzip); |
| 286 mymkdir(filename_inzip); |
| 287 } |
| 288 } |
| 289 else |
| 290 { |
| 291 const char* write_filename; |
| 292 int skip=0; |
| 293 |
| 294 if ((*popt_extract_without_path)==0) |
| 295 write_filename = filename_inzip; |
| 296 else |
| 297 write_filename = filename_withoutpath; |
| 298 |
| 299 err = unzOpenCurrentFilePassword(uf,password); |
| 300 if (err!=UNZ_OK) |
| 301 { |
| 302 printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err); |
| 303 } |
| 304 |
| 305 if (((*popt_overwrite)==0) && (err==UNZ_OK)) |
| 306 { |
| 307 char rep=0; |
| 308 FILE* ftestexist; |
| 309 ftestexist = fopen(write_filename,"rb"); |
| 310 if (ftestexist!=NULL) |
| 311 { |
| 312 fclose(ftestexist); |
| 313 do |
| 314 { |
| 315 char answer[128]; |
| 316 int ret; |
| 317 |
| 318 printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll:
",write_filename); |
| 319 ret = scanf("%1s",answer); |
| 320 if (ret != 1) |
| 321 { |
| 322 exit(EXIT_FAILURE); |
| 323 } |
| 324 rep = answer[0] ; |
| 325 if ((rep>='a') && (rep<='z')) |
| 326 rep -= 0x20; |
| 327 } |
| 328 while ((rep!='Y') && (rep!='N') && (rep!='A')); |
| 329 } |
| 330 |
| 331 if (rep == 'N') |
| 332 skip = 1; |
| 333 |
| 334 if (rep == 'A') |
| 335 *popt_overwrite=1; |
| 336 } |
| 337 |
| 338 if ((skip==0) && (err==UNZ_OK)) |
| 339 { |
| 340 fout=fopen(write_filename,"wb"); |
| 341 |
| 342 /* some zipfile don't contain directory alone before file */ |
| 343 if ((fout==NULL) && ((*popt_extract_without_path)==0) && |
| 344 (filename_withoutpath!=(char*)filename_inzip)) |
| 345 { |
| 346 char c=*(filename_withoutpath-1); |
| 347 *(filename_withoutpath-1)='\0'; |
| 348 makedir(write_filename); |
| 349 *(filename_withoutpath-1)=c; |
| 350 fout=fopen(write_filename,"wb"); |
| 351 } |
| 352 |
| 353 if (fout==NULL) |
| 354 { |
| 355 printf("error opening %s\n",write_filename); |
| 356 } |
| 357 } |
| 358 |
| 359 if (fout!=NULL) |
| 360 { |
| 361 printf(" extracting: %s\n",write_filename); |
| 362 |
| 363 do |
| 364 { |
| 365 err = unzReadCurrentFile(uf,buf,size_buf); |
| 366 if (err<0) |
| 367 { |
| 368 printf("error %d with zipfile in unzReadCurrentFile\n",err); |
| 369 break; |
| 370 } |
| 371 if (err>0) |
| 372 if (fwrite(buf,err,1,fout)!=1) |
| 373 { |
| 374 printf("error in writing extracted file\n"); |
| 375 err=UNZ_ERRNO; |
| 376 break; |
| 377 } |
| 378 } |
| 379 while (err>0); |
| 380 if (fout) |
| 381 fclose(fout); |
| 382 |
| 383 if (err==0) |
| 384 change_file_date(write_filename,file_info.dosDate, |
| 385 file_info.tmu_date); |
| 386 } |
| 387 |
| 388 if (err==UNZ_OK) |
| 389 { |
| 390 err = unzCloseCurrentFile (uf); |
| 391 if (err!=UNZ_OK) |
| 392 { |
| 393 printf("error %d with zipfile in unzCloseCurrentFile\n",err); |
| 394 } |
| 395 } |
| 396 else |
| 397 unzCloseCurrentFile(uf); /* don't lose the error */ |
| 398 } |
| 399 |
| 400 free(buf); |
| 401 return err; |
| 402 } |
| 403 |
| 404 |
| 405 int do_extract(uf,opt_extract_without_path,opt_overwrite,password) |
| 406 unzFile uf; |
| 407 int opt_extract_without_path; |
| 408 int opt_overwrite; |
| 409 const char* password; |
| 410 { |
| 411 uLong i; |
| 412 unz_global_info gi; |
| 413 int err; |
| 414 FILE* fout=NULL; |
| 415 |
| 416 err = unzGetGlobalInfo (uf,&gi); |
| 417 if (err!=UNZ_OK) |
| 418 printf("error %d with zipfile in unzGetGlobalInfo \n",err); |
| 419 |
| 420 for (i=0;i<gi.number_entry;i++) |
| 421 { |
| 422 if (do_extract_currentfile(uf,&opt_extract_without_path, |
| 423 &opt_overwrite, |
| 424 password) != UNZ_OK) |
| 425 break; |
| 426 |
| 427 if ((i+1)<gi.number_entry) |
| 428 { |
| 429 err = unzGoToNextFile(uf); |
| 430 if (err!=UNZ_OK) |
| 431 { |
| 432 printf("error %d with zipfile in unzGoToNextFile\n",err); |
| 433 break; |
| 434 } |
| 435 } |
| 436 } |
| 437 |
| 438 return 0; |
| 439 } |
| 440 |
| 441 int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,passwo
rd) |
| 442 unzFile uf; |
| 443 const char* filename; |
| 444 int opt_extract_without_path; |
| 445 int opt_overwrite; |
| 446 const char* password; |
| 447 { |
| 448 int err = UNZ_OK; |
| 449 if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK) |
| 450 { |
| 451 printf("file %s not found in the zipfile\n",filename); |
| 452 return 2; |
| 453 } |
| 454 |
| 455 if (do_extract_currentfile(uf,&opt_extract_without_path, |
| 456 &opt_overwrite, |
| 457 password) == UNZ_OK) |
| 458 return 0; |
| 459 else |
| 460 return 1; |
| 461 } |
| 462 |
| 463 |
| 464 int main(argc,argv) |
| 465 int argc; |
| 466 char *argv[]; |
| 467 { |
| 468 const char *zipfilename=NULL; |
| 469 const char *filename_to_extract=NULL; |
| 470 const char *password=NULL; |
| 471 char filename_try[MAXFILENAME+16] = ""; |
| 472 int i; |
| 473 int opt_do_list=0; |
| 474 int opt_do_extract=1; |
| 475 int opt_do_extract_withoutpath=0; |
| 476 int opt_overwrite=0; |
| 477 int opt_extractdir=0; |
| 478 const char *dirname=NULL; |
| 479 unzFile uf=NULL; |
| 480 |
| 481 do_banner(); |
| 482 if (argc==1) |
| 483 { |
| 484 do_help(); |
| 485 return 0; |
| 486 } |
| 487 else |
| 488 { |
| 489 for (i=1;i<argc;i++) |
| 490 { |
| 491 if ((*argv[i])=='-') |
| 492 { |
| 493 const char *p=argv[i]+1; |
| 494 |
| 495 while ((*p)!='\0') |
| 496 { |
| 497 char c=*(p++);; |
| 498 if ((c=='l') || (c=='L')) |
| 499 opt_do_list = 1; |
| 500 if ((c=='v') || (c=='V')) |
| 501 opt_do_list = 1; |
| 502 if ((c=='x') || (c=='X')) |
| 503 opt_do_extract = 1; |
| 504 if ((c=='e') || (c=='E')) |
| 505 opt_do_extract = opt_do_extract_withoutpath = 1; |
| 506 if ((c=='o') || (c=='O')) |
| 507 opt_overwrite=1; |
| 508 if ((c=='d') || (c=='D')) |
| 509 { |
| 510 opt_extractdir=1; |
| 511 dirname=argv[i+1]; |
| 512 } |
| 513 |
| 514 if (((c=='p') || (c=='P')) && (i+1<argc)) |
| 515 { |
| 516 password=argv[i+1]; |
| 517 i++; |
| 518 } |
| 519 } |
| 520 } |
| 521 else |
| 522 { |
| 523 if (zipfilename == NULL) |
| 524 zipfilename = argv[i]; |
| 525 else if ((filename_to_extract==NULL) && (!opt_extractdir)) |
| 526 filename_to_extract = argv[i] ; |
| 527 } |
| 528 } |
| 529 } |
| 530 |
| 531 if (zipfilename!=NULL) |
| 532 { |
| 533 |
| 534 # ifdef USEWIN32IOAPI |
| 535 zlib_filefunc_def ffunc; |
| 536 # endif |
| 537 |
| 538 strncpy(filename_try, zipfilename,MAXFILENAME-1); |
| 539 /* strncpy doesnt append the trailing NULL, of the string is too long. *
/ |
| 540 filename_try[ MAXFILENAME ] = '\0'; |
| 541 |
| 542 # ifdef USEWIN32IOAPI |
| 543 fill_win32_filefunc(&ffunc); |
| 544 uf = unzOpen2(zipfilename,&ffunc); |
| 545 # else |
| 546 uf = unzOpen(zipfilename); |
| 547 # endif |
| 548 if (uf==NULL) |
| 549 { |
| 550 strcat(filename_try,".zip"); |
| 551 # ifdef USEWIN32IOAPI |
| 552 uf = unzOpen2(filename_try,&ffunc); |
| 553 # else |
| 554 uf = unzOpen(filename_try); |
| 555 # endif |
| 556 } |
| 557 } |
| 558 |
| 559 if (uf==NULL) |
| 560 { |
| 561 printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename); |
| 562 return 1; |
| 563 } |
| 564 printf("%s opened\n",filename_try); |
| 565 |
| 566 if (opt_do_list==1) |
| 567 return do_list(uf); |
| 568 else if (opt_do_extract==1) |
| 569 { |
| 570 if (opt_extractdir && chdir(dirname)) |
| 571 { |
| 572 printf("Error changing into %s, aborting\n", dirname); |
| 573 exit(-1); |
| 574 } |
| 575 |
| 576 if (filename_to_extract == NULL) |
| 577 return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite,passwo
rd); |
| 578 else |
| 579 return do_extract_onefile(uf,filename_to_extract, |
| 580 opt_do_extract_withoutpath,opt_overwrite,p
assword); |
| 581 } |
| 582 unzCloseCurrentFile(uf); |
| 583 |
| 584 return 0; |
| 585 } |
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