source/blender/blenlib/intern/storage.c

   1 /**
   2  * $Id$
   3  *
   4  * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version. The Blender
  10  * Foundation also sells licenses for use in proprietary software under
  11  * the Blender License.  See http://www.blender.org/BL/ for information
  12  * about this.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  *
  23  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  24  * All rights reserved.
  25  *
  26  * The Original Code is: all of this file.
  27  *
  28  * Contributor(s): none yet.
  29  *
  30  * ***** END GPL/BL DUAL LICENSE BLOCK *****
  31  * Reorganised mar-01 nzc
  32  * Some really low-level file thingies.
  33  */
  34
  35 #include <sys/types.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 #endif
  42
  43 #ifdef WIN32
  44
  45 #include <windows.h>
  46 #include "BLI_winstuff.h"
  47 #include <sys/types.h>
  48 #include <io.h>
  49 #include <direct.h>
  50 #endif
  51
  52 #ifndef WIN32
  53 #include <dirent.h>
  54 #endif
  55
  56 #include <time.h>
  57 #include <sys/stat.h>
  58
  59 #if defined(__sgi) || defined(__sun__)
  60 #include <sys/statfs.h>
  61 #endif
  62
  63 #if defined (__FreeBSD__) || defined (__OpenBSD__)
  64 #include <sys/param.h>
  65 #include <sys/mount.h>
  66 #endif
  67
  68 #if defined(linux) || defined(__CYGWIN32__)
  69 #include <sys/vfs.h>
  70 #endif
  71
  72 #ifdef __BeOS
  73 struct statfs {
  74         int f_bsize;
  75         int f_bfree;
  76 };
  77 #endif
  78
  79 #ifdef __APPLE__
  80 /* For statfs */
  81 #include <sys/param.h>
  82 #include <sys/mount.h>
  83 #endif /* __APPLE__ */
  84
  85
  86 #include <fcntl.h>
  87 #if !defined(__BeOS) && !defined(WIN32)
  88 #include <sys/mtio.h>                   /* tape comando's */
  89 #endif
  90 #include <string.h>                     /* strcpy etc.. */
  91
  92 #ifndef WIN32
  93 #include <sys/ioctl.h>
  94 #include <unistd.h>                     /*  */
  95 #include <pwd.h>
  96 #endif
  97
  98 #if !defined(__FreeBSD__) && !defined(__APPLE__)
  99 #include <malloc.h>
 100 #endif
 101
 102 /* lib includes */
 103 #include "MEM_guardedalloc.h"
 104
 105 #include "DNA_listBase.h"
 106 #include "BLI_blenlib.h"
 107 #include "BLI_storage.h"
 108 #include "BLI_storage_types.h"
 109
 110 #include "BLI_util.h"
 111 #include "BLI_linklist.h"
 112
 113 /* functions */
 114 void  BLI_buildpwtable(struct passwd **pwtable);
 115 void  BLI_freepwtable(struct passwd *pwtable);
 116 char *BLI_findpwtable(struct passwd *pwtable, unsigned short user);
 117
 118 /* vars: */
 119 static int totnum,actnum;
 120 static struct direntry *files;
 121
 122 static struct ListBase dirbase_={
 123         0,0};
 124 static struct ListBase *dirbase = &dirbase_;
 125
 126
 127 char *BLI_getwdN(char *dir)
 128 {
 129         char *pwd;
 130
 131         if (dir) {
 132                 pwd = getenv("PWD");
 133                 if (pwd){
 134                         strcpy(dir, pwd);
 135                         return(dir);
 136                 }
 137                 /* 160 is FILE_MAXDIR in filesel.c */
 138                 return( getcwd(dir, 160) );
 139         }
 140         return(0);
 141 }
 142
 143
 144 int BLI_compare(struct direntry *entry1, struct direntry *entry2)
 145 {
 146         /* type is equal to stat.st_mode */
 147
 148         if (S_ISDIR(entry1->type)){
 149                 if (S_ISDIR(entry2->type)==0) return (-1);
 150         } else{
 151                 if (S_ISDIR(entry2->type)) return (1);
 152         }
 153         if (S_ISREG(entry1->type)){
 154                 if (S_ISREG(entry2->type)==0) return (-1);
 155         } else{
 156                 if (S_ISREG(entry2->type)) return (1);
 157         }
 158         if ((entry1->type & S_IFMT) < (entry2->type & S_IFMT)) return (-1);
 159         if ((entry1->type & S_IFMT) > (entry2->type & S_IFMT)) return (1);
 160         return (strcasecmp(entry1->relname,entry2->relname));
 161 }
 162
 163
 164 double BLI_diskfree(char *dir)
 165 {
 166 #ifdef WIN32
 167         DWORD sectorspc, bytesps, freec, clusters;
 168         char tmp[4];
 169
 170         tmp[0]='\\'; tmp[1]=0; /* Just a failsafe */
 171         if (dir[0]=='/' || dir[0]=='\\') {
 172                 tmp[0]='\\';
 173                 tmp[1]=0;
 174         } else if (dir[1]==':') {
 175                 tmp[0]=dir[0];
 176                 tmp[1]=':';
 177                 tmp[2]='\\';
 178                 tmp[3]=0;
 179         }
 180
 181         GetDiskFreeSpace(tmp,&sectorspc, &bytesps, &freec, &clusters);
 182
 183         return (double) (freec*bytesps*sectorspc);
 184 #else
 185         struct statfs disk;
 186         char name[100],*slash;
 187
 188
 189         strcpy(name,dir);
 190
 191         if(strlen(name)){
 192                 slash = strrchr(name,'/');
 193                 if (slash) slash[1] = 0;
 194         } else strcpy(name,"/");
 195
 196 #if defined (__FreeBSD__) || defined (linux) || defined (__OpenBSD__)
 197         if (statfs(name, &disk)) return(-1);
 198 #endif
 199 #ifdef __BeOS
 200         return -1;
 201 #endif
 202 #if defined __sgi || defined __sun__
 203
 204         if (statfs(name, &disk, sizeof(struct statfs), 0)){
 205                 /* printf("diskfree: Couldn't get information about %s.\n",dir); */
 206                 return(-1);
 207         }
 208 #endif
 209
 210         return ( ((double) disk.f_bsize) * ((double) disk.f_bfree));
 211 #endif
 212 }
 213
 214 static int hide_dot= 0;
 215
 216 void BLI_hide_dot_files(int set)
 217 {
 218         if(set) hide_dot= 1;
 219         else hide_dot= 0;
 220 }
 221
 222 void BLI_builddir(char *dirname, char *relname)
 223 {
 224         struct dirent *fname;
 225         struct dirlink *dlink;
 226         int rellen, newnum = 0, seen_ = 0, seen__ = 0;
 227         char buf[256];
 228         DIR *dir;
 229
 230         strcpy(buf,relname);
 231         rellen=strlen(relname);
 232
 233         if (rellen){
 234                 buf[rellen]='/';
 235                 rellen++;
 236         }
 237
 238         if (chdir(dirname) == -1){
 239                 perror(dirname);
 240                 return;
 241         }
 242
 243         if (dir = (DIR *)opendir(".")){
 244                 while ((fname = (struct dirent*) readdir(dir)) != NULL) {
 245
 246                         if(hide_dot && fname->d_name[0]=='.' && fname->d_name[1]!='.' && fname->d_name[1]!=0);
 247                         else {
 248
 249                                 dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
 250                                 if (dlink){
 251                                         strcpy(buf+rellen,fname->d_name);
 252
 253                                         dlink->name = strdup(buf);
 254
 255                                         if (dlink->name[0] == '.') {
 256                                                 if (dlink->name[1] == 0) seen_ = 1;
 257                                                 else if (dlink->name[1] == '.') {
 258                                                         if (dlink->name[2] == 0) seen__ = 1;
 259                                                 }
 260                                         }
 261                                         BLI_addhead(dirbase,dlink);
 262                                         newnum++;
 263                                 }
 264                         }
 265                 }
 266
 267                 if (newnum){
 268 #ifndef WIN32
 269                         if (seen_ == 0) {       /* Cachefs PATCH */
 270                                 dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
 271                                 strcpy(buf+rellen,"./.");
 272                                 dlink->name = strdup(buf);
 273                                 BLI_addhead(dirbase,dlink);
 274                                 newnum++;
 275                         }
 276                         if (seen__ == 0) {      /* MAC PATCH */
 277                                 dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
 278                                 strcpy(buf+rellen,"./..");
 279                                 dlink->name = strdup(buf);
 280                                 BLI_addhead(dirbase,dlink);
 281                                 newnum++;
 282                         }
 283 #endif
 284
 285                         if (files) files=(struct direntry *)realloc(files,(totnum+newnum) * sizeof(struct direntry));
 286                         else files=(struct direntry *)malloc(newnum * sizeof(struct direntry));
 287
 288                         if (files){
 289                                 dlink = (struct dirlink *) dirbase->first;
 290                                 while(dlink){
 291                                         memset(&files[actnum], 0 , sizeof(struct direntry));
 292                                         files[actnum].relname = dlink->name;
 293                                         stat(dlink->name,&files[actnum].s);
 294                                         files[actnum].type=files[actnum].s.st_mode;
 295                                         files[actnum].flags = 0;
 296                                         totnum++;
 297                                         actnum++;
 298                                         dlink = dlink->next;
 299                                 }
 300                         } else{
 301                                 printf("Couldn't get memory for dir\n");
 302                                 exit(1);
 303                         }
 304
 305                         BLI_freelist(dirbase);
 306                         if (files) qsort(files, actnum, sizeof(struct direntry), (int (*)(const void *,const void*))BLI_compare);
 307                 } else {
 308                         printf("%s empty directory\n",dirname);
 309                 }
 310
 311                 closedir(dir);
 312         } else {
 313                 printf("%s non-existant directory\n",dirname);
 314         }
 315 }
 316
 317 #ifndef WIN32
 318 void BLI_buildpwtable(struct passwd **pwtable)
 319 {
 320         int count=0,slen;
 321         struct passwd *pw,*pwtab;
 322
 323         do{
 324                 pw=getpwent();
 325                 if (pw){
 326                         count++;
 327                 }
 328         }while(pw);
 329         endpwent();
 330
 331         pwtab = (struct passwd *)calloc(count+1,sizeof(struct passwd));
 332         count=0;
 333         do{
 334                 pw=getpwent();
 335                 if (pw){
 336                         pwtab[count] = *pw;
 337                         slen = strlen(pw->pw_name);
 338                         pwtab[count].pw_name = malloc(slen+1);
 339                         strcpy(pwtab[count].pw_name,pw->pw_name);
 340                         count ++;
 341                 }
 342         }while(pw);
 343         pwtab[count].pw_name = 0;
 344         endpwent();
 345
 346         *(pwtable) = pwtab;
 347 }
 348
 349 void BLI_freepwtable(struct passwd *pwtable)
 350 {
 351         int count=0;
 352
 353         do{
 354                 if (pwtable[count].pw_name) free(pwtable[count].pw_name);
 355                 else break;
 356                 count++;
 357         }while (1);
 358
 359         free(pwtable);
 360 }
 361
 362
 363 char *BLI_findpwtable(struct passwd *pwtable, ushort user)
 364 {
 365         static char string[32];
 366
 367         while (pwtable->pw_name){
 368                 if (pwtable->pw_uid == user){
 369                         return (pwtable->pw_name);
 370                 }
 371                 pwtable++;
 372         }
 373         sprintf(string, "%d", user);
 374         return (string);
 375 }
 376 #endif
 377
 378
 379 void BLI_adddirstrings()
 380 {
 381         char datum[100];
 382         char buf[250];
 383         char size[250];
 384         static char * types[8] = {"---", "--x", "-w-", "-wx", "r--", "r-x", "rw-", "rwx"};
 385         int num, mode;
 386         int num1, num2, num3, num4, st_size;
 387 #ifndef WIN32
 388         struct passwd *pwtable;
 389 #endif
 390         struct direntry * file;
 391         struct tm *tm;
 392
 393 #ifndef WIN32
 394         BLI_buildpwtable(&pwtable);
 395 #endif
 396
 397         file = &files[0];
 398
 399         for(num=0;num<actnum;num++){
 400 #ifdef WIN32
 401                 mode = 0;
 402                 strcpy(file->mode1, types[0]);
 403                 strcpy(file->mode2, types[0]);
 404                 strcpy(file->mode3, types[0]);
 405 #else
 406                 mode = file->s.st_mode;
 407
 408                 strcpy(file->mode1, types[(mode & 0700) >> 6]);
 409                 strcpy(file->mode2, types[(mode & 0070) >> 3]);
 410                 strcpy(file->mode3, types[(mode & 0007)]);
 411
 412                 if (((mode & S_ISGID) == S_ISGID) && (file->mode2[2]=='-'))file->mode2[2]='l';
 413
 414                 if (mode & (S_ISUID | S_ISGID)){
 415                         if (file->mode1[2]=='x') file->mode1[2]='s';
 416                         else file->mode1[2]='S';
 417
 418                         if (file->mode2[2]=='x')file->mode2[2]='s';
 419                 }
 420
 421                 if (mode & S_ISVTX){
 422                         if (file->mode3[2] == 'x') file->mode3[2] = 't';
 423                         else file->mode3[2] = 'T';
 424                 }
 425 #endif
 426
 427 #ifdef WIN32
 428                 strcpy(files[num].owner,"user");
 429 #else
 430                 strcpy(files[num].owner, BLI_findpwtable(pwtable,files[num].s.st_uid));
 431 #endif
 432
 433                 tm= localtime(&files[num].s.st_mtime);
 434                 strftime(files[num].time, 8, "%H:%M", tm);
 435                 strftime(files[num].date, 16, "%d-%b-%y", tm);
 436
 437                 st_size= (int)files[num].s.st_size;
 438
 439                 num1= st_size % 1000;
 440                 num2= st_size/1000;
 441                 num2= num2 % 1000;
 442                 num3= st_size/(1000*1000);
 443                 num3= num3 % 1000;
 444                 num4= st_size/(1000*1000*1000);
 445                 num4= num4 % 1000;
 446
 447                 if(num4) sprintf(files[num].size, "%3d %03d %03d %03d", num4, num3, num2, num1);
 448                 else if(num3) sprintf(files[num].size, "%7d %03d %03d", num3, num2, num1);
 449                 else if(num2) sprintf(files[num].size, "%11d %03d", num2, num1);
 450                 else if(num1) sprintf(files[num].size, "%15d", num1);
 451                 else sprintf(files[num].size, "");
 452
 453                 strftime(datum, 32, "%d-%b-%y %R", tm);
 454
 455                 if (st_size < 1000) {
 456                         sprintf(size, "%10d", st_size);
 457                 } else if (st_size < 1000 * 1000) {
 458                         sprintf(size, "%6d %03d", st_size / 1000, st_size % 1000);
 459                 } else if (st_size < 100 * 1000 * 1000) {
 460                         sprintf(size, "%2d %03d %03d", st_size / (1000 * 1000), (st_size / 1000) % 1000, st_size % 1000);
 461                 } else {
 462                         sprintf(size, "> %4.1f M", st_size / (1024.0 * 1024.0));
 463                         sprintf(size, "%10d", st_size);
 464                 }
 465
 466                 sprintf(buf,"%s %s %10s %s", files[num].date, files[num].time, size,
 467                         files[num].relname);
 468
 469                 sprintf(buf,"%s %s %s %7s %s %s %10s %s", file->mode1, file->mode2, file->mode3, files[num].owner, files[num].date, files[num].time, size,
 470                         files[num].relname);
 471
 472                 files[num].string=malloc(strlen(buf)+1);
 473                 if (files[num].string){
 474                         strcpy(files[num].string,buf);
 475                 }
 476
 477                 file++;
 478         }
 479 #ifndef WIN32
 480         BLI_freepwtable(pwtable);
 481 #endif
 482 }
 483
 484 unsigned int BLI_getdir(char *dirname,  struct direntry **filelist)
 485 {
 486         // reset global variables
 487         // memory stored in files is free()'d in
 488         // filesel.c:freefilelist()
 489
 490         actnum = totnum = 0;
 491         files = 0;
 492
 493         BLI_builddir(dirname,"");
 494         BLI_adddirstrings();
 495
 496         if (files) {
 497                 *(filelist) = files;
 498         } else {
 499                 // keep blender happy. Blender stores this in a variable
 500                 // where 0 has special meaning.....
 501                 *(filelist) = files = malloc(sizeof(struct direntry));
 502         }
 503
 504         return(actnum);
 505 }
 506
 507
 508 int BLI_filesize(int file)
 509 {
 510         struct stat buf;
 511
 512         if (file <= 0) return (-1);
 513         fstat(file, &buf);
 514         return (buf.st_size);
 515 }
 516
 517
 518
 519 int BLI_exist(char *name)
 520 {
 521         struct stat st;
 522
 523         if (stat(name,&st)) return(0);
 524         return(st.st_mode);
 525 }
 526
 527 LinkNode *BLI_read_file_as_lines(char *name)
 528 {
 529         FILE *fp= fopen(name, "r");
 530         LinkNode *lines= NULL;
 531         char *buf;
 532         int size;
 533
 534         if (!fp) return NULL;
 535
 536         fseek(fp, 0, SEEK_END);
 537         size= ftell(fp);
 538         fseek(fp, 0, SEEK_SET);
 539
 540         buf= malloc(size);
 541         if (buf) {
 542                 int i, last= 0;
 543
 544                         /*
 545                          * size = because on win32 reading
 546                          * all the bytes in the file will return
 547                          * less bytes because of crnl changes.
 548                          */
 549                 size= fread(buf, 1, size, fp);
 550                 for (i=0; i<=size; i++) {
 551                         if (i==size || buf[i]=='\n') {
 552                                 char *line= BLI_strdupn(&buf[last], i-last);
 553
 554                                 BLI_linklist_prepend(&lines, line);
 555                                 last= i+1;
 556                         }
 557                 }
 558
 559                 free(buf);
 560         }
 561
 562         fclose(fp);
 563
 564         BLI_linklist_reverse(&lines);
 565         return lines;
 566 }
 567
 568 void BLI_free_file_lines(LinkNode *lines)
 569 {
 570         BLI_linklist_free(lines, (void(*)(void*)) MEM_freeN);
 571 }