source3/client/clitar.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Tar Extensions
   4    Copyright (C) Ricky Poulten 1995-1998
   5    Copyright (C) Richard Sharpe 1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20 /* The following changes developed by Richard Sharpe for Canon Information
  21    Systems Research Australia (CISRA)
  22
  23    1. Restore can now restore files with long file names
  24    2. Save now saves directory information so that we can restore
  25       directory creation times
  26    3. tar now accepts both UNIX path names and DOS path names. I prefer
  27       those lovely /'s to those UGLY \'s :-)
  28    4. the files to exclude can be specified as a regular expression by adding
  29       an r flag to the other tar flags. Eg:
  30
  31          -TcrX file.tar "*.(obj|exe)"
  32
  33       will skip all .obj and .exe files
  34 */
  35
  36
  37 #include "includes.h"
  38 #include "clitar.h"
  39 #include "client/client_proto.h"
  40
  41 static int clipfind(char **aret, int ret, char *tok);
  42
  43 typedef struct file_info_struct file_info2;
  44
  45 struct file_info_struct {
  46         SMB_OFF_T size;
  47         uint16 mode;
  48         uid_t uid;
  49         gid_t gid;
  50         /* These times are normally kept in GMT */
  51         struct timespec mtime_ts;
  52         struct timespec atime_ts;
  53         struct timespec ctime_ts;
  54         char *name;     /* This is dynamically allocated */
  55         file_info2 *next, *prev;  /* Used in the stack ... */
  56 };
  57
  58 typedef struct {
  59         file_info2 *top;
  60         int items;
  61 } stack;
  62
  63 #define SEPARATORS " \t\n\r"
  64 extern time_t newer_than;
  65 extern struct cli_state *cli;
  66
  67 /* These defines are for the do_setrattr routine, to indicate
  68  * setting and reseting of file attributes in the function call */
  69 #define ATTRSET 1
  70 #define ATTRRESET 0
  71
  72 static uint16 attribute = aDIR | aSYSTEM | aHIDDEN;
  73
  74 #ifndef CLIENT_TIMEOUT
  75 #define CLIENT_TIMEOUT (30*1000)
  76 #endif
  77
  78 static char *tarbuf, *buffer_p;
  79 static int tp, ntarf, tbufsiz;
  80 static double ttarf;
  81 /* Incremental mode */
  82 static bool tar_inc=False;
  83 /* Reset archive bit */
  84 static bool tar_reset=False;
  85 /* Include / exclude mode (true=include, false=exclude) */
  86 static bool tar_excl=True;
  87 /* use regular expressions for search on file names */
  88 static bool tar_re_search=False;
  89 /* Do not dump anything, just calculate sizes */
  90 static bool dry_run=False;
  91 /* Dump files with System attribute */
  92 static bool tar_system=True;
  93 /* Dump files with Hidden attribute */
  94 static bool tar_hidden=True;
  95 /* Be noisy - make a catalogue */
  96 static bool tar_noisy=True;
  97 static bool tar_real_noisy=False;  /* Don't want to be really noisy by default */
  98
  99 char tar_type='\0';
 100 static char **cliplist=NULL;
 101 static int clipn=0;
 102 static bool must_free_cliplist = False;
 103 extern const char *cmd_ptr;
 104
 105 extern bool lowercase;
 106 extern uint16 cnum;
 107 extern bool readbraw_supported;
 108 extern int max_xmit;
 109 extern int get_total_time_ms;
 110 extern int get_total_size;
 111
 112 static int blocksize=20;
 113 static int tarhandle;
 114
 115 static void writetarheader(int f,  const char *aname, uint64_t size, time_t mtime,
 116                            const char *amode, unsigned char ftype);
 117 static void do_atar(const char *rname_in,char *lname,file_info *finfo1);
 118 static void do_tar(file_info *finfo, const char *dir);
 119 static void oct_it(uint64_t value, int ndgs, char *p);
 120 static void fixtarname(char *tptr, const char *fp, size_t l);
 121 static int dotarbuf(int f, char *b, int n);
 122 static void dozerobuf(int f, int n);
 123 static void dotareof(int f);
 124 static void initarbuf(void);
 125
 126 /* restore functions */
 127 static long readtarheader(union hblock *hb, file_info2 *finfo, const char *prefix);
 128 static long unoct(char *p, int ndgs);
 129 static void do_tarput(void);
 130 static void unfixtarname(char *tptr, char *fp, int l, bool first);
 131
 132 /*
 133  * tar specific utitlities
 134  */
 135
 136 /*******************************************************************
 137 Create  a string of size size+1 (for the null)
 138 *******************************************************************/
 139
 140 static char *string_create_s(int size)
 141 {
 142         char *tmp;
 143
 144         tmp = (char *)SMB_MALLOC(size+1);
 145
 146         if (tmp == NULL) {
 147                 DEBUG(0, ("Out of memory in string_create_s\n"));
 148         }
 149
 150         return(tmp);
 151 }
 152
 153 /****************************************************************************
 154 Write a tar header to buffer
 155 ****************************************************************************/
 156
 157 static void writetarheader(int f, const char *aname, uint64_t size, time_t mtime,
 158                            const char *amode, unsigned char ftype)
 159 {
 160         union hblock hb;
 161         int i, chk, l;
 162         char *jp;
 163
 164         DEBUG(5, ("WriteTarHdr, Type = %c, Size= %.0f, Name = %s\n", ftype, (double)size, aname));
 165
 166         memset(hb.dummy, 0, sizeof(hb.dummy));
 167
 168         l=strlen(aname);
 169         /* We will be prepending a '.' in fixtarheader so use +2 to
 170          * take care of the . and terminating zero. JRA.
 171          */
 172         if (l+2 >= NAMSIZ) {
 173                 /* write a GNU tar style long header */
 174                 char *b;
 175                 b = (char *)SMB_MALLOC(l+TBLOCK+100);
 176                 if (!b) {
 177                         DEBUG(0,("out of memory\n"));
 178                         exit(1);
 179                 }
 180                 writetarheader(f, "/./@LongLink", l+2, 0, "     0 \0", 'L');
 181                 memset(b, 0, l+TBLOCK+100);
 182                 fixtarname(b, aname, l+2);
 183                 i = strlen(b)+1;
 184                 DEBUG(5, ("File name in tar file: %s, size=%d, \n", b, (int)strlen(b)));
 185                 dotarbuf(f, b, TBLOCK*(((i-1)/TBLOCK)+1));
 186                 SAFE_FREE(b);
 187         }
 188
 189         fixtarname(hb.dbuf.name, aname, (l+2 >= NAMSIZ) ? NAMSIZ : l + 2);
 190
 191         if (lowercase)
 192                 strlower_m(hb.dbuf.name);
 193
 194         /* write out a "standard" tar format header */
 195
 196         hb.dbuf.name[NAMSIZ-1]='\0';
 197         safe_strcpy(hb.dbuf.mode, amode, sizeof(hb.dbuf.mode)-1);
 198         oct_it((uint64_t)0, 8, hb.dbuf.uid);
 199         oct_it((uint64_t)0, 8, hb.dbuf.gid);
 200         oct_it((uint64_t) size, 13, hb.dbuf.size);
 201         if (size > (uint64_t)077777777777LL) {
 202                 /* This is a non-POSIX compatible extention to store files
 203                         greater than 8GB. */
 204
 205                 memset(hb.dbuf.size, 0, 4);
 206                 hb.dbuf.size[0]=128;
 207                 for (i = 8, jp=(char*)&size; i; i--)
 208                         hb.dbuf.size[i+3] = *(jp++);
 209         }
 210         oct_it((uint64_t) mtime, 13, hb.dbuf.mtime);
 211         memcpy(hb.dbuf.chksum, "        ", sizeof(hb.dbuf.chksum));
 212         memset(hb.dbuf.linkname, 0, NAMSIZ);
 213         hb.dbuf.linkflag=ftype;
 214
 215         for (chk=0, i=sizeof(hb.dummy), jp=hb.dummy; --i>=0;)
 216                 chk+=(0xFF & *jp++);
 217
 218         oct_it((uint64_t) chk, 8, hb.dbuf.chksum);
 219         hb.dbuf.chksum[6] = '\0';
 220
 221         (void) dotarbuf(f, hb.dummy, sizeof(hb.dummy));
 222 }
 223
 224 /****************************************************************************
 225 Read a tar header into a hblock structure, and validate
 226 ***************************************************************************/
 227
 228 static long readtarheader(union hblock *hb, file_info2 *finfo, const char *prefix)
 229 {
 230         long chk, fchk;
 231         int i;
 232         char *jp;
 233
 234         /*
 235          * read in a "standard" tar format header - we're not that interested
 236          * in that many fields, though
 237          */
 238
 239         /* check the checksum */
 240         for (chk=0, i=sizeof(hb->dummy), jp=hb->dummy; --i>=0;)
 241                 chk+=(0xFF & *jp++);
 242
 243         if (chk == 0)
 244                 return chk;
 245
 246         /* compensate for blanks in chksum header */
 247         for (i=sizeof(hb->dbuf.chksum), jp=hb->dbuf.chksum; --i>=0;)
 248                 chk-=(0xFF & *jp++);
 249
 250         chk += ' ' * sizeof(hb->dbuf.chksum);
 251
 252         fchk=unoct(hb->dbuf.chksum, sizeof(hb->dbuf.chksum));
 253
 254         DEBUG(5, ("checksum totals chk=%ld fchk=%ld chksum=%s\n",
 255                         chk, fchk, hb->dbuf.chksum));
 256
 257         if (fchk != chk) {
 258                 DEBUG(0, ("checksums don't match %ld %ld\n", fchk, chk));
 259                 dump_data(5, (uint8 *)hb - TBLOCK, TBLOCK *3);
 260                 return -1;
 261         }
 262
 263         if ((finfo->name = string_create_s(strlen(prefix) + strlen(hb -> dbuf.name) + 3)) == NULL) {
 264                 DEBUG(0, ("Out of space creating file_info2 for %s\n", hb -> dbuf.name));
 265                 return(-1);
 266         }
 267
 268         safe_strcpy(finfo->name, prefix, strlen(prefix) + strlen(hb -> dbuf.name) + 3);
 269
 270         /* use l + 1 to do the null too; do prefix - prefcnt to zap leading slash */
 271         unfixtarname(finfo->name + strlen(prefix), hb->dbuf.name,
 272                 strlen(hb->dbuf.name) + 1, True);
 273
 274         /* can't handle some links at present */
 275         if ((hb->dbuf.linkflag != '0') && (hb -> dbuf.linkflag != '5')) {
 276                 if (hb->dbuf.linkflag == 0) {
 277                         DEBUG(6, ("Warning: NULL link flag (gnu tar archive ?) %s\n",
 278                                 finfo->name));
 279                 } else {
 280                         if (hb -> dbuf.linkflag == 'L') { /* We have a longlink */
 281                                 /* Do nothing here at the moment. do_tarput will handle this
 282                                         as long as the longlink gets back to it, as it has to advance
 283                                         the buffer pointer, etc */
 284                         } else {
 285                                 DEBUG(0, ("this tar file appears to contain some kind \
 286 of link other than a GNUtar Longlink - ignoring\n"));
 287                                 return -2;
 288                         }
 289                 }
 290         }
 291
 292         if ((unoct(hb->dbuf.mode, sizeof(hb->dbuf.mode)) & S_IFDIR) ||
 293                                 (*(finfo->name+strlen(finfo->name)-1) == '\\')) {
 294                 finfo->mode=aDIR;
 295         } else {
 296                 finfo->mode=0; /* we don't care about mode at the moment, we'll
 297                                 * just make it a regular file */
 298         }
 299
 300         /*
 301          * Bug fix by richard@sj.co.uk
 302          *
 303          * REC: restore times correctly (as does tar)
 304          * We only get the modification time of the file; set the creation time
 305          * from the mod. time, and the access time to current time
 306          */
 307         finfo->mtime_ts = finfo->ctime_ts =
 308                 convert_time_t_to_timespec((time_t)strtol(hb->dbuf.mtime, NULL, 8));
 309         finfo->atime_ts = convert_time_t_to_timespec(time(NULL));
 310         finfo->size = unoct(hb->dbuf.size, sizeof(hb->dbuf.size));
 311
 312         return True;
 313 }
 314
 315 /****************************************************************************
 316 Write out the tar buffer to tape or wherever
 317 ****************************************************************************/
 318
 319 static int dotarbuf(int f, char *b, int n)
 320 {
 321         int fail=1, writ=n;
 322
 323         if (dry_run) {
 324                 return writ;
 325         }
 326         /* This routine and the next one should be the only ones that do write()s */
 327         if (tp + n >= tbufsiz) {
 328                 int diff;
 329
 330                 diff=tbufsiz-tp;
 331                 memcpy(tarbuf + tp, b, diff);
 332                 fail=fail && (1+sys_write(f, tarbuf, tbufsiz));
 333                 n-=diff;
 334                 b+=diff;
 335                 tp=0;
 336
 337                 while (n >= tbufsiz) {
 338                         fail=fail && (1 + sys_write(f, b, tbufsiz));
 339                         n-=tbufsiz;
 340                         b+=tbufsiz;
 341                 }
 342         }
 343
 344         if (n>0) {
 345                 memcpy(tarbuf+tp, b, n);
 346                 tp+=n;
 347         }
 348
 349         return(fail ? writ : 0);
 350 }
 351
 352 /****************************************************************************
 353 Write zeros to buffer / tape
 354 ****************************************************************************/
 355
 356 static void dozerobuf(int f, int n)
 357 {
 358         /* short routine just to write out n zeros to buffer -
 359          * used to round files to nearest block
 360          * and to do tar EOFs */
 361
 362         if (dry_run)
 363                 return;
 364
 365         if (n+tp >= tbufsiz) {
 366                 memset(tarbuf+tp, 0, tbufsiz-tp);
 367                 if (sys_write(f, tarbuf, tbufsiz) != tbufsiz) {
 368                         DEBUG(0, ("dozerobuf: sys_write fail\n"));
 369                         return;
 370                 }
 371                 memset(tarbuf, 0, (tp+=n-tbufsiz));
 372         } else {
 373                 memset(tarbuf+tp, 0, n);
 374                 tp+=n;
 375         }
 376 }
 377
 378 /****************************************************************************
 379 Malloc tape buffer
 380 ****************************************************************************/
 381
 382 static void initarbuf(void)
 383 {
 384         /* initialize tar buffer */
 385         tbufsiz=blocksize*TBLOCK;
 386         tarbuf=(char *)SMB_MALLOC(tbufsiz);      /* FIXME: We might not get the buffer */
 387
 388         /* reset tar buffer pointer and tar file counter and total dumped */
 389         tp=0; ntarf=0; ttarf=0;
 390 }
 391
 392 /****************************************************************************
 393 Write two zero blocks at end of file
 394 ****************************************************************************/
 395
 396 static void dotareof(int f)
 397 {
 398         SMB_STRUCT_STAT stbuf;
 399         /* Two zero blocks at end of file, write out full buffer */
 400
 401         if (dry_run)
 402                 return;
 403
 404         (void) dozerobuf(f, TBLOCK);
 405         (void) dozerobuf(f, TBLOCK);
 406
 407         if (sys_fstat(f, &stbuf) == -1) {
 408                 DEBUG(0, ("Couldn't stat file handle\n"));
 409                 return;
 410         }
 411
 412         /* Could be a pipe, in which case S_ISREG should fail,
 413                 * and we should write out at full size */
 414         if (tp > 0) {
 415                 size_t towrite = S_ISREG(stbuf.st_mode) ? tp : tbufsiz;
 416                 if (sys_write(f, tarbuf, towrite) != towrite) {
 417                         DEBUG(0,("dotareof: sys_write fail\n"));
 418                 }
 419         }
 420 }
 421
 422 /****************************************************************************
 423 (Un)mangle DOS pathname, make nonabsolute
 424 ****************************************************************************/
 425
 426 static void fixtarname(char *tptr, const char *fp, size_t l)
 427 {
 428         /* add a '.' to start of file name, convert from ugly dos \'s in path
 429          * to lovely unix /'s :-} */
 430         *tptr++='.';
 431         l--;
 432
 433         StrnCpy(tptr, fp, l-1);
 434         string_replace(tptr, '\\', '/');
 435 }
 436
 437 /****************************************************************************
 438 Convert from decimal to octal string
 439 ****************************************************************************/
 440
 441 static void oct_it (uint64_t value, int ndgs, char *p)
 442 {
 443         /* Converts long to octal string, pads with leading zeros */
 444
 445         /* skip final null, but do final space */
 446         --ndgs;
 447         p[--ndgs] = ' ';
 448
 449         /* Loop does at least one digit */
 450         do {
 451                 p[--ndgs] = '0' + (char) (value & 7);
 452                 value >>= 3;
 453         } while (ndgs > 0 && value != 0);
 454
 455         /* Do leading zeros */
 456         while (ndgs > 0)
 457                 p[--ndgs] = '0';
 458 }
 459
 460 /****************************************************************************
 461 Convert from octal string to long
 462 ***************************************************************************/
 463
 464 static long unoct(char *p, int ndgs)
 465 {
 466         long value=0;
 467         /* Converts octal string to long, ignoring any non-digit */
 468
 469         while (--ndgs) {
 470                 if (isdigit((int)*p))
 471                         value = (value << 3) | (long) (*p - '0');
 472
 473                 p++;
 474         }
 475
 476         return value;
 477 }
 478
 479 /****************************************************************************
 480 Compare two strings in a slash insensitive way, allowing s1 to match s2
 481 if s1 is an "initial" string (up to directory marker).  Thus, if s2 is
 482 a file in any subdirectory of s1, declare a match.
 483 ***************************************************************************/
 484
 485 static int strslashcmp(char *s1, char *s2)
 486 {
 487         char *s1_0=s1;
 488
 489         while(*s1 && *s2 && (*s1 == *s2 || tolower_ascii(*s1) == tolower_ascii(*s2) ||
 490                                 (*s1 == '\\' && *s2=='/') || (*s1 == '/' && *s2=='\\'))) {
 491                 s1++; s2++;
 492         }
 493
 494         /* if s1 has a trailing slash, it compared equal, so s1 is an "initial"
 495                 string of s2.
 496         */
 497         if (!*s1 && s1 != s1_0 && (*(s1-1) == '/' || *(s1-1) == '\\'))
 498                 return 0;
 499
 500         /* ignore trailing slash on s1 */
 501         if (!*s2 && (*s1 == '/' || *s1 == '\\') && !*(s1+1))
 502                 return 0;
 503
 504         /* check for s1 is an "initial" string of s2 */
 505         if ((*s2 == '/' || *s2 == '\\') && !*s1)
 506                 return 0;
 507
 508         return *s1-*s2;
 509 }
 510
 511 /****************************************************************************
 512 Ensure a remote path exists (make if necessary)
 513 ***************************************************************************/
 514
 515 static bool ensurepath(const char *fname)
 516 {
 517         /* *must* be called with buffer ready malloc'ed */
 518         /* ensures path exists */
 519
 520         char *partpath, *ffname;
 521         const char *p=fname;
 522         char *basehack;
 523         char *saveptr;
 524
 525         DEBUG(5, ( "Ensurepath called with: %s\n", fname));
 526
 527         partpath = string_create_s(strlen(fname));
 528         ffname = string_create_s(strlen(fname));
 529
 530         if ((partpath == NULL) || (ffname == NULL)){
 531                 DEBUG(0, ("Out of memory in ensurepath: %s\n", fname));
 532                 SAFE_FREE(partpath);
 533                 SAFE_FREE(ffname);
 534                 return(False);
 535         }
 536
 537         *partpath = 0;
 538
 539         /* fname copied to ffname so can strtok_r */
 540
 541         safe_strcpy(ffname, fname, strlen(fname));
 542
 543         /* do a `basename' on ffname, so don't try and make file name directory */
 544         if ((basehack=strrchr_m(ffname, '\\')) == NULL) {
 545                 SAFE_FREE(partpath);
 546                 SAFE_FREE(ffname);
 547                 return True;
 548         } else {
 549                 *basehack='\0';
 550         }
 551
 552         p=strtok_r(ffname, "\\", &saveptr);
 553
 554         while (p) {
 555                 safe_strcat(partpath, p, strlen(fname) + 1);
 556
 557                 if (!NT_STATUS_IS_OK(cli_chkpath(cli, partpath))) {
 558                         if (!NT_STATUS_IS_OK(cli_mkdir(cli, partpath))) {
 559                                 SAFE_FREE(partpath);
 560                                 SAFE_FREE(ffname);
 561                                 DEBUG(0, ("Error mkdir %s\n", cli_errstr(cli)));
 562                                 return False;
 563                         } else {
 564                                 DEBUG(3, ("mkdirhiering %s\n", partpath));
 565                         }
 566                 }
 567
 568                 safe_strcat(partpath, "\\", strlen(fname) + 1);
 569                 p = strtok_r(NULL, "/\\", &saveptr);
 570         }
 571
 572         SAFE_FREE(partpath);
 573         SAFE_FREE(ffname);
 574         return True;
 575 }
 576
 577 static int padit(char *buf, uint64_t bufsize, uint64_t padsize)
 578 {
 579         int berr= 0;
 580         int bytestowrite;
 581
 582         DEBUG(5, ("Padding with %0.f zeros\n", (double)padsize));
 583         memset(buf, 0, (size_t)bufsize);
 584         while( !berr && padsize > 0 ) {
 585                 bytestowrite= (int)MIN(bufsize, padsize);
 586                 berr = dotarbuf(tarhandle, buf, bytestowrite) != bytestowrite;
 587                 padsize -= bytestowrite;
 588         }
 589
 590         return berr;
 591 }
 592
 593 static void do_setrattr(char *name, uint16 attr, int set)
 594 {
 595         uint16 oldattr;
 596
 597         if (!NT_STATUS_IS_OK(cli_getatr(cli, name, &oldattr, NULL, NULL))) {
 598                 return;
 599         }
 600
 601         if (set == ATTRSET) {
 602                 attr |= oldattr;
 603         } else {
 604                 attr = oldattr & ~attr;
 605         }
 606
 607         if (!NT_STATUS_IS_OK(cli_setatr(cli, name, attr, 0))) {
 608                 DEBUG(1,("setatr failed: %s\n", cli_errstr(cli)));
 609         }
 610 }
 611
 612 /****************************************************************************
 613 append one remote file to the tar file
 614 ***************************************************************************/
 615
 616 static void do_atar(const char *rname_in,char *lname,file_info *finfo1)
 617 {
 618         uint16_t fnum = (uint16_t)-1;
 619         uint64_t nread=0;
 620         char ftype;
 621         file_info2 finfo;
 622         bool shallitime=True;
 623         char *data = NULL;
 624         int read_size = 65520;
 625         int datalen=0;
 626         char *rname = NULL;
 627         TALLOC_CTX *ctx = talloc_stackframe();
 628
 629         struct timeval tp_start;
 630
 631         GetTimeOfDay(&tp_start);
 632
 633         data = SMB_MALLOC_ARRAY(char, read_size);
 634         if (!data) {
 635                 DEBUG(0,("do_atar: out of memory.\n"));
 636                 goto cleanup;
 637         }
 638
 639         ftype = '0'; /* An ordinary file ... */
 640
 641         ZERO_STRUCT(finfo);
 642
 643         finfo.size  = finfo1 -> size;
 644         finfo.mode  = finfo1 -> mode;
 645         finfo.uid   = finfo1 -> uid;
 646         finfo.gid   = finfo1 -> gid;
 647         finfo.mtime_ts = finfo1 -> mtime_ts;
 648         finfo.atime_ts = finfo1 -> atime_ts;
 649         finfo.ctime_ts = finfo1 -> ctime_ts;
 650
 651         if (dry_run) {
 652                 DEBUG(3,("skipping file %s of size %12.0f bytes\n", finfo1->name,
 653                                 (double)finfo.size));
 654                 shallitime=0;
 655                 ttarf+=finfo.size + TBLOCK - (finfo.size % TBLOCK);
 656                 ntarf++;
 657                 goto cleanup;
 658         }
 659
 660         rname = clean_name(ctx, rname_in);
 661         if (!rname) {
 662                 goto cleanup;
 663         }
 664
 665         if (!NT_STATUS_IS_OK(cli_open(cli, rname, O_RDONLY, DENY_NONE, &fnum))) {
 666                 DEBUG(0,("%s opening remote file %s (%s)\n",
 667                                 cli_errstr(cli),rname, client_get_cur_dir()));
 668                 goto cleanup;
 669         }
 670
 671         finfo.name = string_create_s(strlen(rname));
 672         if (finfo.name == NULL) {
 673                 DEBUG(0, ("Unable to allocate space for finfo.name in do_atar\n"));
 674                 goto cleanup;
 675         }
 676
 677         safe_strcpy(finfo.name,rname, strlen(rname));
 678
 679         DEBUG(3,("file %s attrib 0x%X\n",finfo.name,finfo.mode));
 680
 681         if (tar_inc && !(finfo.mode & aARCH)) {
 682                 DEBUG(4, ("skipping %s - archive bit not set\n", finfo.name));
 683                 shallitime=0;
 684         } else if (!tar_system && (finfo.mode & aSYSTEM)) {
 685                 DEBUG(4, ("skipping %s - system bit is set\n", finfo.name));
 686                 shallitime=0;
 687         } else if (!tar_hidden && (finfo.mode & aHIDDEN)) {
 688                 DEBUG(4, ("skipping %s - hidden bit is set\n", finfo.name));
 689                 shallitime=0;
 690         } else {
 691                 bool wrote_tar_header = False;
 692
 693                 DEBUG(3,("getting file %s of size %.0f bytes as a tar file %s",
 694                         finfo.name, (double)finfo.size, lname));
 695
 696                 do {
 697
 698                         DEBUG(3,("nread=%.0f\n",(double)nread));
 699
 700                         datalen = cli_read(cli, fnum, data, nread, read_size);
 701
 702                         if (datalen == -1) {
 703                                 DEBUG(0,("Error reading file %s : %s\n", rname, cli_errstr(cli)));
 704                                 break;
 705                         }
 706
 707                         nread += datalen;
 708
 709                         /* Only if the first read succeeds, write out the tar header. */
 710                         if (!wrote_tar_header) {
 711                                 /* write a tar header, don't bother with mode - just set to 100644 */
 712                                 writetarheader(tarhandle, rname, finfo.size,
 713                                         finfo.mtime_ts.tv_sec, "100644 \0", ftype);
 714                                 wrote_tar_header = True;
 715                         }
 716
 717                         /* if file size has increased since we made file size query, truncate
 718                                 read so tar header for this file will be correct.
 719                         */
 720
 721                         if (nread > finfo.size) {
 722                                 datalen -= nread - finfo.size;
 723                                 DEBUG(0,("File size change - truncating %s to %.0f bytes\n",
 724                                                         finfo.name, (double)finfo.size));
 725                         }
 726
 727                         /* add received bits of file to buffer - dotarbuf will
 728                         * write out in 512 byte intervals */
 729
 730                         if (dotarbuf(tarhandle,data,datalen) != datalen) {
 731                                 DEBUG(0,("Error writing to tar file - %s\n", strerror(errno)));
 732                                 break;
 733                         }
 734
 735                         if ( (datalen == 0) && (finfo.size != 0) ) {
 736                                 DEBUG(0,("Error reading file %s. Got 0 bytes\n", rname));
 737                                 break;
 738                         }
 739
 740                         datalen=0;
 741                 } while ( nread < finfo.size );
 742
 743                 if (wrote_tar_header) {
 744                         /* pad tar file with zero's if we couldn't get entire file */
 745                         if (nread < finfo.size) {
 746                                 DEBUG(0, ("Didn't get entire file. size=%.0f, nread=%d\n",
 747                                                         (double)finfo.size, (int)nread));
 748                                 if (padit(data, (uint64_t)sizeof(data), finfo.size - nread))
 749                                         DEBUG(0,("Error writing tar file - %s\n", strerror(errno)));
 750                         }
 751
 752                         /* round tar file to nearest block */
 753                         if (finfo.size % TBLOCK)
 754                                 dozerobuf(tarhandle, TBLOCK - (finfo.size % TBLOCK));
 755
 756                         ttarf+=finfo.size + TBLOCK - (finfo.size % TBLOCK);
 757                         ntarf++;
 758                 } else {
 759                         DEBUG(4, ("skipping %s - initial read failed (file was locked ?)\n", finfo.name));
 760                         shallitime=0;
 761                 }
 762         }
 763
 764         cli_close(cli, fnum);
 765         fnum = -1;
 766
 767         if (shallitime) {
 768                 struct timeval tp_end;
 769                 int this_time;
 770
 771                 /* if shallitime is true then we didn't skip */
 772                 if (tar_reset && !dry_run)
 773                         (void) do_setrattr(finfo.name, aARCH, ATTRRESET);
 774
 775                 GetTimeOfDay(&tp_end);
 776                 this_time = (tp_end.tv_sec - tp_start.tv_sec)*1000 + (tp_end.tv_usec - tp_start.tv_usec)/1000;
 777                 get_total_time_ms += this_time;
 778                 get_total_size += finfo.size;
 779
 780                 if (tar_noisy) {
 781                         DEBUG(0, ("%12.0f (%7.1f kb/s) %s\n",
 782                                 (double)finfo.size, finfo.size / MAX(0.001, (1.024*this_time)),
 783                                 finfo.name));
 784                 }
 785
 786                 /* Thanks to Carel-Jan Engel (ease@mail.wirehub.nl) for this one */
 787                 DEBUG(3,("(%g kb/s) (average %g kb/s)\n",
 788                                 finfo.size / MAX(0.001, (1.024*this_time)),
 789                                 get_total_size / MAX(0.001, (1.024*get_total_time_ms))));
 790         }
 791
 792   cleanup:
 793
 794         if (fnum != (uint16_t)-1) {
 795                 cli_close(cli, fnum);
 796                 fnum = -1;
 797         }
 798         TALLOC_FREE(ctx);
 799         SAFE_FREE(data);
 800 }
 801
 802 /****************************************************************************
 803 Append single file to tar file (or not)
 804 ***************************************************************************/
 805
 806 static void do_tar(file_info *finfo, const char *dir)
 807 {
 808         TALLOC_CTX *ctx = talloc_stackframe();
 809
 810         if (strequal(finfo->name,"..") || strequal(finfo->name,"."))
 811                 return;
 812
 813         /* Is it on the exclude list ? */
 814         if (!tar_excl && clipn) {
 815                 char *exclaim;
 816
 817                 DEBUG(5, ("Excl: strlen(cur_dir) = %d\n", (int)strlen(client_get_cur_dir())));
 818
 819                 exclaim = talloc_asprintf(ctx,
 820                                 "%s\\%s",
 821                                 client_get_cur_dir(),
 822                                 finfo->name);
 823                 if (!exclaim) {
 824                         return;
 825                 }
 826
 827                 DEBUG(5, ("...tar_re_search: %d\n", tar_re_search));
 828
 829                 if ((!tar_re_search && clipfind(cliplist, clipn, exclaim)) ||
 830                                 (tar_re_search && mask_match_list(exclaim, cliplist, clipn, True))) {
 831                         DEBUG(3,("Skipping file %s\n", exclaim));
 832                         TALLOC_FREE(exclaim);
 833                         return;
 834                 }
 835                 TALLOC_FREE(exclaim);
 836         }
 837
 838         if (finfo->mode & aDIR) {
 839                 char *saved_curdir = NULL;
 840                 char *new_cd = NULL;
 841                 char *mtar_mask = NULL;
 842
 843                 saved_curdir = talloc_strdup(ctx, client_get_cur_dir());
 844                 if (!saved_curdir) {
 845                         return;
 846                 }
 847
 848                 DEBUG(5, ("strlen(cur_dir)=%d, \
 849 strlen(finfo->name)=%d\nname=%s,cur_dir=%s\n",
 850                         (int)strlen(saved_curdir),
 851                         (int)strlen(finfo->name), finfo->name, saved_curdir));
 852
 853                 new_cd = talloc_asprintf(ctx,
 854                                 "%s%s\\",
 855                                 client_get_cur_dir(),
 856                                 finfo->name);
 857                 if (!new_cd) {
 858                         return;
 859                 }
 860                 client_set_cur_dir(new_cd);
 861
 862                 DEBUG(5, ("Writing a dir, Name = %s\n", client_get_cur_dir()));
 863
 864                 /* write a tar directory, don't bother with mode - just
 865                  * set it to 40755 */
 866                 writetarheader(tarhandle, client_get_cur_dir(), 0,
 867                                 finfo->mtime_ts.tv_sec, "040755 \0", '5');
 868                 if (tar_noisy) {
 869                         DEBUG(0,("                directory %s\n",
 870                                 client_get_cur_dir()));
 871                 }
 872                 ntarf++;  /* Make sure we have a file on there */
 873                 mtar_mask = talloc_asprintf(ctx,
 874                                 "%s*",
 875                                 client_get_cur_dir());
 876                 if (!mtar_mask) {
 877                         return;
 878                 }
 879                 DEBUG(5, ("Doing list with mtar_mask: %s\n", mtar_mask));
 880                 do_list(mtar_mask, attribute, do_tar, False, True);
 881                 client_set_cur_dir(saved_curdir);
 882                 TALLOC_FREE(saved_curdir);
 883                 TALLOC_FREE(new_cd);
 884                 TALLOC_FREE(mtar_mask);
 885         } else {
 886                 char *rname = talloc_asprintf(ctx,
 887                                         "%s%s",
 888                                         client_get_cur_dir(),
 889                                         finfo->name);
 890                 if (!rname) {
 891                         return;
 892                 }
 893                 do_atar(rname,finfo->name,finfo);
 894                 TALLOC_FREE(rname);
 895         }
 896 }
 897
 898 /****************************************************************************
 899 Convert from UNIX to DOS file names
 900 ***************************************************************************/
 901
 902 static void unfixtarname(char *tptr, char *fp, int l, bool first)
 903 {
 904         /* remove '.' from start of file name, convert from unix /'s to
 905          * dos \'s in path. Kill any absolute path names. But only if first!
 906          */
 907
 908         DEBUG(5, ("firstb=%lX, secondb=%lX, len=%i\n", (long)tptr, (long)fp, l));
 909
 910         if (first) {
 911                 if (*fp == '.') {
 912                         fp++;
 913                         l--;
 914                 }
 915                 if (*fp == '\\' || *fp == '/') {
 916                         fp++;
 917                         l--;
 918                 }
 919         }
 920
 921         safe_strcpy(tptr, fp, l);
 922         string_replace(tptr, '/', '\\');
 923 }
 924
 925 /****************************************************************************
 926 Move to the next block in the buffer, which may mean read in another set of
 927 blocks. FIXME, we should allow more than one block to be skipped.
 928 ****************************************************************************/
 929
 930 static int next_block(char *ltarbuf, char **bufferp, int bufsiz)
 931 {
 932         int bufread, total = 0;
 933
 934         DEBUG(5, ("Advancing to next block: %0lx\n", (unsigned long)*bufferp));
 935         *bufferp += TBLOCK;
 936         total = TBLOCK;
 937
 938         if (*bufferp >= (ltarbuf + bufsiz)) {
 939
 940                 DEBUG(5, ("Reading more data into ltarbuf ...\n"));
 941
 942                 /*
 943                  * Bugfix from Bob Boehmer <boehmer@worldnet.att.net>
 944                  * Fixes bug where read can return short if coming from
 945                  * a pipe.
 946                  */
 947
 948                 bufread = read(tarhandle, ltarbuf, bufsiz);
 949                 total = bufread;
 950
 951                 while (total < bufsiz) {
 952                         if (bufread < 0) { /* An error, return false */
 953                                 return (total > 0 ? -2 : bufread);
 954                         }
 955                         if (bufread == 0) {
 956                                 if (total <= 0) {
 957                                         return -2;
 958                                 }
 959                                 break;
 960                         }
 961                         bufread = read(tarhandle, &ltarbuf[total], bufsiz - total);
 962                         total += bufread;
 963                 }
 964
 965                 DEBUG(5, ("Total bytes read ... %i\n", total));
 966
 967                 *bufferp = ltarbuf;
 968         }
 969
 970         return(total);
 971 }
 972
 973 /* Skip a file, even if it includes a long file name? */
 974 static int skip_file(int skipsize)
 975 {
 976         int dsize = skipsize;
 977
 978         DEBUG(5, ("Skiping file. Size = %i\n", skipsize));
 979
 980         /* FIXME, we should skip more than one block at a time */
 981
 982         while (dsize > 0) {
 983                 if (next_block(tarbuf, &buffer_p, tbufsiz) <= 0) {
 984                         DEBUG(0, ("Empty file, short tar file, or read error: %s\n", strerror(errno)));
 985                         return(False);
 986                 }
 987                 dsize -= TBLOCK;
 988         }
 989
 990         return(True);
 991 }
 992
 993 /*************************************************************
 994  Get a file from the tar file and store it.
 995  When this is called, tarbuf already contains the first
 996  file block. This is a bit broken & needs fixing.
 997 **************************************************************/
 998
 999 static int get_file(file_info2 finfo)
1000 {
1001         uint16_t fnum;
1002         int pos = 0, dsize = 0, bpos = 0;
1003         uint64_t rsize = 0;
1004
1005         DEBUG(5, ("get_file: file: %s, size %.0f\n", finfo.name, (double)finfo.size));
1006
1007         if (ensurepath(finfo.name) &&
1008                         (!NT_STATUS_IS_OK(cli_open(cli, finfo.name, O_RDWR|O_CREAT|O_TRUNC, DENY_NONE,&fnum)))) {
1009                 DEBUG(0, ("abandoning restore\n"));
1010                 return(False);
1011         }
1012
1013         /* read the blocks from the tar file and write to the remote file */
1014
1015         rsize = finfo.size;  /* This is how much to write */
1016
1017         while (rsize > 0) {
1018
1019                 /* We can only write up to the end of the buffer */
1020                 dsize = MIN(tbufsiz - (buffer_p - tarbuf) - bpos, 65520); /* Calculate the size to write */
1021                 dsize = MIN(dsize, rsize);  /* Should be only what is left */
1022                 DEBUG(5, ("writing %i bytes, bpos = %i ...\n", dsize, bpos));
1023
1024                 if (cli_write(cli, fnum, 0, buffer_p + bpos, pos, dsize) != dsize) {
1025                         DEBUG(0, ("Error writing remote file\n"));
1026                         return 0;
1027                 }
1028
1029                 rsize -= dsize;
1030                 pos += dsize;
1031
1032                 /* Now figure out how much to move in the buffer */
1033
1034                 /* FIXME, we should skip more than one block at a time */
1035
1036                 /* First, skip any initial part of the part written that is left over */
1037                 /* from the end of the first TBLOCK                                   */
1038
1039                 if ((bpos) && ((bpos + dsize) >= TBLOCK)) {
1040                         dsize -= (TBLOCK - bpos);  /* Get rid of the end of the first block */
1041                         bpos = 0;
1042
1043                         if (next_block(tarbuf, &buffer_p, tbufsiz) <=0) {  /* and skip the block */
1044                                 DEBUG(0, ("Empty file, short tar file, or read error: %s\n", strerror(errno)));
1045                                 return False;
1046                         }
1047                 }
1048
1049                 /*
1050                  * Bugfix from Bob Boehmer <boehmer@worldnet.att.net>.
1051                  * If the file being extracted is an exact multiple of
1052                  * TBLOCK bytes then we don't want to extract the next
1053                  * block from the tarfile here, as it will be done in
1054                  * the caller of get_file().
1055                  */
1056
1057                 while (((rsize != 0) && (dsize >= TBLOCK)) ||
1058                                 ((rsize == 0) && (dsize > TBLOCK))) {
1059
1060                         if (next_block(tarbuf, &buffer_p, tbufsiz) <=0) {
1061                                 DEBUG(0, ("Empty file, short tar file, or read error: %s\n", strerror(errno)));
1062                                 return False;
1063                         }
1064
1065                         dsize -= TBLOCK;
1066                 }
1067                 bpos = dsize;
1068         }
1069
1070         /* Now close the file ... */
1071
1072         if (!NT_STATUS_IS_OK(cli_close(cli, fnum))) {
1073                 DEBUG(0, ("Error %s closing remote file\n",
1074                         cli_errstr(cli)));
1075                 return(False);
1076         }
1077
1078         /* Now we update the creation date ... */
1079         DEBUG(5, ("Updating creation date on %s\n", finfo.name));
1080
1081         if (!NT_STATUS_IS_OK(cli_setatr(cli, finfo.name, finfo.mode, finfo.mtime_ts.tv_sec))) {
1082                 if (tar_real_noisy) {
1083                         DEBUG(0, ("Could not set time on file: %s\n", finfo.name));
1084                         /*return(False); */ /* Ignore, as Win95 does not allow changes */
1085                 }
1086         }
1087
1088         ntarf++;
1089         DEBUG(0, ("restore tar file %s of size %.0f bytes\n", finfo.name, (double)finfo.size));
1090         return(True);
1091 }
1092
1093 /* Create a directory.  We just ensure that the path exists and return as there
1094    is no file associated with a directory
1095 */
1096 static int get_dir(file_info2 finfo)
1097 {
1098         DEBUG(0, ("restore directory %s\n", finfo.name));
1099
1100         if (!ensurepath(finfo.name)) {
1101                 DEBUG(0, ("Problems creating directory\n"));
1102                 return(False);
1103         }
1104         ntarf++;
1105         return(True);
1106 }
1107
1108 /* Get a file with a long file name ... first file has file name, next file
1109    has the data. We only want the long file name, as the loop in do_tarput
1110    will deal with the rest.
1111 */
1112 static char *get_longfilename(file_info2 finfo)
1113 {
1114         /* finfo.size here is the length of the filename as written by the "/./@LongLink" name
1115          * header call. */
1116         int namesize = finfo.size + strlen(client_get_cur_dir()) + 2;
1117         char *longname = (char *)SMB_MALLOC(namesize);
1118         int offset = 0, left = finfo.size;
1119         bool first = True;
1120
1121         DEBUG(5, ("Restoring a long file name: %s\n", finfo.name));
1122         DEBUG(5, ("Len = %.0f\n", (double)finfo.size));
1123
1124         if (longname == NULL) {
1125                 DEBUG(0, ("could not allocate buffer of size %d for longname\n", namesize));
1126                 return(NULL);
1127         }
1128
1129         /* First, add cur_dir to the long file name */
1130
1131         if (strlen(client_get_cur_dir()) > 0) {
1132                 strncpy(longname, client_get_cur_dir(), namesize);
1133                 offset = strlen(client_get_cur_dir());
1134         }
1135
1136         /* Loop through the blocks picking up the name */
1137
1138         while (left > 0) {
1139                 if (next_block(tarbuf, &buffer_p, tbufsiz) <= 0) {
1140                         DEBUG(0, ("Empty file, short tar file, or read error: %s\n", strerror(errno)));
1141                         SAFE_FREE(longname);
1142                         return(NULL);
1143                 }
1144
1145                 unfixtarname(longname + offset, buffer_p, MIN(TBLOCK, finfo.size), first--);
1146                 DEBUG(5, ("UnfixedName: %s, buffer: %s\n", longname, buffer_p));
1147
1148                 offset += TBLOCK;
1149                 left -= TBLOCK;
1150         }
1151
1152         return(longname);
1153 }
1154
1155 static void do_tarput(void)
1156 {
1157         file_info2 finfo;
1158         struct timeval tp_start;
1159         char *longfilename = NULL, linkflag;
1160         int skip = False;
1161
1162         ZERO_STRUCT(finfo);
1163
1164         GetTimeOfDay(&tp_start);
1165         DEBUG(5, ("RJS do_tarput called ...\n"));
1166
1167         buffer_p = tarbuf + tbufsiz;  /* init this to force first read */
1168
1169         /* Now read through those files ... */
1170         while (True) {
1171                 /* Get us to the next block, or the first block first time around */
1172                 if (next_block(tarbuf, &buffer_p, tbufsiz) <= 0) {
1173                         DEBUG(0, ("Empty file, short tar file, or read error: %s\n", strerror(errno)));
1174                         SAFE_FREE(longfilename);
1175                         return;
1176                 }
1177
1178                 DEBUG(5, ("Reading the next header ...\n"));
1179
1180                 switch (readtarheader((union hblock *) buffer_p,
1181                                         &finfo, client_get_cur_dir())) {
1182                         case -2:    /* Hmm, not good, but not fatal */
1183                                 DEBUG(0, ("Skipping %s...\n", finfo.name));
1184                                 if ((next_block(tarbuf, &buffer_p, tbufsiz) <= 0) && !skip_file(finfo.size)) {
1185                                         DEBUG(0, ("Short file, bailing out...\n"));
1186                                         return;
1187                                 }
1188                                 break;
1189
1190                         case -1:
1191                                 DEBUG(0, ("abandoning restore, -1 from read tar header\n"));
1192                                 return;
1193
1194                         case 0: /* chksum is zero - looks like an EOF */
1195                                 DEBUG(0, ("tar: restored %d files and directories\n", ntarf));
1196                                 return;        /* Hmmm, bad here ... */
1197
1198                         default:
1199                                 /* No action */
1200                                 break;
1201                 }
1202
1203                 /* Now, do we have a long file name? */
1204                 if (longfilename != NULL) {
1205                         SAFE_FREE(finfo.name);   /* Free the space already allocated */
1206                         finfo.name = longfilename;
1207                         longfilename = NULL;
1208                 }
1209
1210                 /* Well, now we have a header, process the file ...            */
1211                 /* Should we skip the file? We have the long name as well here */
1212                 skip = clipn && ((!tar_re_search && clipfind(cliplist, clipn, finfo.name) ^ tar_excl) ||
1213                                         (tar_re_search && mask_match_list(finfo.name, cliplist, clipn, True)));
1214
1215                 DEBUG(5, ("Skip = %i, cliplist=%s, file=%s\n", skip, (cliplist?cliplist[0]:NULL), finfo.name));
1216                 if (skip) {
1217                         skip_file(finfo.size);
1218                         continue;
1219                 }
1220
1221                 /* We only get this far if we should process the file */
1222                 linkflag = ((union hblock *)buffer_p) -> dbuf.linkflag;
1223                 switch (linkflag) {
1224                         case '0':  /* Should use symbolic names--FIXME */
1225                                 /*
1226                                  * Skip to the next block first, so we can get the file, FIXME, should
1227                                  * be in get_file ...
1228                                  * The 'finfo.size != 0' fix is from Bob Boehmer <boehmer@worldnet.att.net>
1229                                  * Fixes bug where file size in tarfile is zero.
1230                                  */
1231                                 if ((finfo.size != 0) && next_block(tarbuf, &buffer_p, tbufsiz) <=0) {
1232                                         DEBUG(0, ("Short file, bailing out...\n"));
1233                                         return;
1234                                 }
1235                                 if (!get_file(finfo)) {
1236                                         DEBUG(0, ("Abandoning restore\n"));
1237                                         return;
1238                                 }
1239                                 break;
1240                         case '5':
1241                                 if (!get_dir(finfo)) {
1242                                         DEBUG(0, ("Abandoning restore \n"));
1243                                         return;
1244                                 }
1245                                 break;
1246                         case 'L':
1247                                 SAFE_FREE(longfilename);
1248                                 longfilename = get_longfilename(finfo);
1249                                 if (!longfilename) {
1250                                         DEBUG(0, ("abandoning restore\n"));
1251                                         return;
1252                                 }
1253                                 DEBUG(5, ("Long file name: %s\n", longfilename));
1254                                 break;
1255
1256                         default:
1257                                 skip_file(finfo.size);  /* Don't handle these yet */
1258                                 break;
1259                 }
1260         }
1261 }
1262
1263 /*
1264  * samba interactive commands
1265  */
1266
1267 /****************************************************************************
1268 Blocksize command
1269 ***************************************************************************/
1270
1271 int cmd_block(void)
1272 {
1273         TALLOC_CTX *ctx = talloc_tos();
1274         char *buf;
1275         int block;
1276
1277         if (!next_token_talloc(ctx, &cmd_ptr,&buf,NULL)) {
1278                 DEBUG(0, ("blocksize <n>\n"));
1279                 return 1;
1280         }
1281
1282         block=atoi(buf);
1283         if (block < 0 || block > 65535) {
1284                 DEBUG(0, ("blocksize out of range"));
1285                 return 1;
1286         }
1287
1288         blocksize=block;
1289         DEBUG(2,("blocksize is now %d\n", blocksize));
1290         return 0;
1291 }
1292
1293 /****************************************************************************
1294 command to set incremental / reset mode
1295 ***************************************************************************/
1296
1297 int cmd_tarmode(void)
1298 {
1299         TALLOC_CTX *ctx = talloc_tos();
1300         char *buf;
1301
1302         while (next_token_talloc(ctx, &cmd_ptr,&buf,NULL)) {
1303                 if (strequal(buf, "full"))
1304                         tar_inc=False;
1305                 else if (strequal(buf, "inc"))
1306                         tar_inc=True;
1307                 else if (strequal(buf, "reset"))
1308                         tar_reset=True;
1309                 else if (strequal(buf, "noreset"))
1310                         tar_reset=False;
1311                 else if (strequal(buf, "system"))
1312                         tar_system=True;
1313                 else if (strequal(buf, "nosystem"))
1314                         tar_system=False;
1315                 else if (strequal(buf, "hidden"))
1316                         tar_hidden=True;
1317                 else if (strequal(buf, "nohidden"))
1318                         tar_hidden=False;
1319                 else if (strequal(buf, "verbose") || strequal(buf, "noquiet"))
1320                         tar_noisy=True;
1321                 else if (strequal(buf, "quiet") || strequal(buf, "noverbose"))
1322                         tar_noisy=False;
1323                 else
1324                         DEBUG(0, ("tarmode: unrecognised option %s\n", buf));
1325                 TALLOC_FREE(buf);
1326         }
1327
1328         DEBUG(0, ("tarmode is now %s, %s, %s, %s, %s\n",
1329                         tar_inc ? "incremental" : "full",
1330                         tar_system ? "system" : "nosystem",
1331                         tar_hidden ? "hidden" : "nohidden",
1332                         tar_reset ? "reset" : "noreset",
1333                         tar_noisy ? "verbose" : "quiet"));
1334         return 0;
1335 }
1336
1337 /****************************************************************************
1338 Feeble attrib command
1339 ***************************************************************************/
1340
1341 int cmd_setmode(void)
1342 {
1343         TALLOC_CTX *ctx = talloc_tos();
1344         char *q;
1345         char *buf;
1346         char *fname = NULL;
1347         uint16 attra[2];
1348         int direct=1;
1349
1350         attra[0] = attra[1] = 0;
1351
1352         if (!next_token_talloc(ctx, &cmd_ptr,&buf,NULL)) {
1353                 DEBUG(0, ("setmode <filename> <[+|-]rsha>\n"));
1354                 return 1;
1355         }
1356
1357         fname = talloc_asprintf(ctx,
1358                                 "%s%s",
1359                                 client_get_cur_dir(),
1360                                 buf);
1361         if (!fname) {
1362                 return 1;
1363         }
1364
1365         while (next_token_talloc(ctx, &cmd_ptr,&buf,NULL)) {
1366                 q=buf;
1367
1368                 while(*q) {
1369                         switch (*q++) {
1370                                 case '+':
1371                                         direct=1;
1372                                         break;
1373                                 case '-':
1374                                         direct=0;
1375                                         break;
1376                                 case 'r':
1377                                         attra[direct]|=aRONLY;
1378                                         break;
1379                                 case 'h':
1380                                         attra[direct]|=aHIDDEN;
1381                                         break;
1382                                 case 's':
1383                                         attra[direct]|=aSYSTEM;
1384                                         break;
1385                                 case 'a':
1386                                         attra[direct]|=aARCH;
1387                                         break;
1388                                 default:
1389                                         DEBUG(0, ("setmode <filename> <perm=[+|-]rsha>\n"));
1390                                         return 1;
1391                         }
1392                 }
1393         }
1394
1395         if (attra[ATTRSET]==0 && attra[ATTRRESET]==0) {
1396                 DEBUG(0, ("setmode <filename> <[+|-]rsha>\n"));
1397                 return 1;
1398         }
1399
1400         DEBUG(2, ("\nperm set %d %d\n", attra[ATTRSET], attra[ATTRRESET]));
1401         do_setrattr(fname, attra[ATTRSET], ATTRSET);
1402         do_setrattr(fname, attra[ATTRRESET], ATTRRESET);
1403         return 0;
1404 }
1405
1406 /**
1407  Convert list of tokens to array; dependent on above routine.
1408  Uses the global cmd_ptr from above - bit of a hack.
1409 **/
1410
1411 static char **toktocliplist(int *ctok, const char *sep)
1412 {
1413         char *s=(char *)cmd_ptr;
1414         int ictok=0;
1415         char **ret, **iret;
1416
1417         if (!sep)
1418                 sep = " \t\n\r";
1419
1420         while(*s && strchr_m(sep,*s))
1421                 s++;
1422
1423         /* nothing left? */
1424         if (!*s)
1425                 return(NULL);
1426
1427         do {
1428                 ictok++;
1429                 while(*s && (!strchr_m(sep,*s)))
1430                         s++;
1431                 while(*s && strchr_m(sep,*s))
1432                         *s++=0;
1433         } while(*s);
1434
1435         *ctok=ictok;
1436         s=(char *)cmd_ptr;
1437
1438         if (!(ret=iret=SMB_MALLOC_ARRAY(char *,ictok+1)))
1439                 return NULL;
1440
1441         while(ictok--) {
1442                 *iret++=s;
1443                 if (ictok > 0) {
1444                         while(*s++)
1445                                 ;
1446                         while(!*s)
1447                                 s++;
1448                 }
1449         }
1450
1451         ret[*ctok] = NULL;
1452         return ret;
1453 }
1454
1455 /****************************************************************************
1456 Principal command for creating / extracting
1457 ***************************************************************************/
1458
1459 int cmd_tar(void)
1460 {
1461         TALLOC_CTX *ctx = talloc_tos();
1462         char *buf;
1463         char **argl = NULL;
1464         int argcl = 0;
1465         int ret;
1466
1467         if (!next_token_talloc(ctx, &cmd_ptr,&buf,NULL)) {
1468                 DEBUG(0,("tar <c|x>[IXbgan] <filename>\n"));
1469                 return 1;
1470         }
1471
1472         argl=toktocliplist(&argcl, NULL);
1473         if (!tar_parseargs(argcl, argl, buf, 0)) {
1474                 SAFE_FREE(argl);
1475                 return 1;
1476         }
1477
1478         ret = process_tar();
1479         SAFE_FREE(argl);
1480         return ret;
1481 }
1482
1483 /****************************************************************************
1484 Command line (option) version
1485 ***************************************************************************/
1486
1487 int process_tar(void)
1488 {
1489         TALLOC_CTX *ctx = talloc_tos();
1490         int rc = 0;
1491         initarbuf();
1492         switch(tar_type) {
1493                 case 'x':
1494
1495 #if 0
1496                         do_tarput2();
1497 #else
1498                         do_tarput();
1499 #endif
1500                         SAFE_FREE(tarbuf);
1501                         close(tarhandle);
1502                         break;
1503                 case 'r':
1504                 case 'c':
1505                         if (clipn && tar_excl) {
1506                                 int i;
1507                                 char *tarmac = NULL;
1508
1509                                 for (i=0; i<clipn; i++) {
1510                                         DEBUG(5,("arg %d = %s\n", i, cliplist[i]));
1511
1512                                         if (*(cliplist[i]+strlen(cliplist[i])-1)=='\\') {
1513                                                 *(cliplist[i]+strlen(cliplist[i])-1)='\0';
1514                                         }
1515
1516                                         if (strrchr_m(cliplist[i], '\\')) {
1517                                                 char *p;
1518                                                 char saved_char;
1519                                                 char *saved_dir = talloc_strdup(ctx,
1520                                                                         client_get_cur_dir());
1521                                                 if (!saved_dir) {
1522                                                         return 1;
1523                                                 }
1524
1525                                                 if (*cliplist[i]=='\\') {
1526                                                         tarmac = talloc_strdup(ctx,
1527                                                                         cliplist[i]);
1528                                                 } else {
1529                                                         tarmac = talloc_asprintf(ctx,
1530                                                                         "%s%s",
1531                                                                         client_get_cur_dir(),
1532                                                                         cliplist[i]);
1533                                                 }
1534                                                 if (!tarmac) {
1535                                                         return 1;
1536                                                 }
1537                                                 /*
1538                                                  * Strip off the last \\xxx
1539                                                  * xxx element of tarmac to set
1540                                                  * it as current directory.
1541                                                  */
1542                                                 p = strrchr_m(tarmac, '\\');
1543                                                 if (!p) {
1544                                                         return 1;
1545                                                 }
1546                                                 saved_char = p[1];
1547                                                 p[1] = '\0';
1548
1549                                                 client_set_cur_dir(tarmac);
1550
1551                                                 /*
1552                                                  * Restore the character we
1553                                                  * just replaced to
1554                                                  * put the pathname
1555                                                  * back as it was.
1556                                                  */
1557                                                 p[1] = saved_char;
1558
1559                                                 DEBUG(5, ("process_tar, do_list with tarmac: %s\n", tarmac));
1560                                                 do_list(tarmac,attribute,do_tar, False, True);
1561
1562                                                 client_set_cur_dir(saved_dir);
1563
1564                                                 TALLOC_FREE(saved_dir);
1565                                                 TALLOC_FREE(tarmac);
1566                                         } else {
1567                                                 tarmac = talloc_asprintf(ctx,
1568                                                                 "%s%s",
1569                                                                 client_get_cur_dir(),
1570                                                                 cliplist[i]);
1571                                                 if (!tarmac) {
1572                                                         return 1;
1573                                                 }
1574                                                 DEBUG(5, ("process_tar, do_list with tarmac: %s\n", tarmac));
1575                                                 do_list(tarmac,attribute,do_tar, False, True);
1576                                                 TALLOC_FREE(tarmac);
1577                                         }
1578                                 }
1579                         } else {
1580                                 char *mask = talloc_asprintf(ctx,
1581                                                         "%s\\*",
1582                                                         client_get_cur_dir());
1583                                 if (!mask) {
1584                                         return 1;
1585                                 }
1586                                 DEBUG(5, ("process_tar, do_list with mask: %s\n", mask));
1587                                 do_list(mask,attribute,do_tar,False, True);
1588                                 TALLOC_FREE(mask);
1589                         }
1590
1591                         if (ntarf) {
1592                                 dotareof(tarhandle);
1593                         }
1594                         close(tarhandle);
1595                         SAFE_FREE(tarbuf);
1596
1597                         DEBUG(0, ("tar: dumped %d files and directories\n", ntarf));
1598                         DEBUG(0, ("Total bytes written: %.0f\n", (double)ttarf));
1599                         break;
1600         }
1601
1602         if (must_free_cliplist) {
1603                 int i;
1604                 for (i = 0; i < clipn; ++i) {
1605                         SAFE_FREE(cliplist[i]);
1606                 }
1607                 SAFE_FREE(cliplist);
1608                 cliplist = NULL;
1609                 clipn = 0;
1610                 must_free_cliplist = False;
1611         }
1612         return rc;
1613 }
1614
1615 /****************************************************************************
1616 Find a token (filename) in a clip list
1617 ***************************************************************************/
1618
1619 static int clipfind(char **aret, int ret, char *tok)
1620 {
1621         if (aret==NULL)
1622                 return 0;
1623
1624         /* ignore leading slashes or dots in token */
1625         while(strchr_m("/\\.", *tok))
1626                 tok++;
1627
1628         while(ret--) {
1629                 char *pkey=*aret++;
1630
1631                 /* ignore leading slashes or dots in list */
1632                 while(strchr_m("/\\.", *pkey))
1633                         pkey++;
1634
1635                 if (!strslashcmp(pkey, tok))
1636                         return 1;
1637         }
1638         return 0;
1639 }
1640
1641 /****************************************************************************
1642 Read list of files to include from the file and initialize cliplist
1643 accordingly.
1644 ***************************************************************************/
1645
1646 static int read_inclusion_file(char *filename)
1647 {
1648         XFILE *inclusion = NULL;
1649         char buf[PATH_MAX + 1];
1650         char *inclusion_buffer = NULL;
1651         int inclusion_buffer_size = 0;
1652         int inclusion_buffer_sofar = 0;
1653         char *p;
1654         char *tmpstr;
1655         int i;
1656         int error = 0;
1657
1658         clipn = 0;
1659         buf[PATH_MAX] = '\0'; /* guarantee null-termination */
1660         if ((inclusion = x_fopen(filename, O_RDONLY, 0)) == NULL) {
1661                 /* XXX It would be better to include a reason for failure, but without
1662                  * autoconf, it's hard to use strerror, sys_errlist, etc.
1663                  */
1664                 DEBUG(0,("Unable to open inclusion file %s\n", filename));
1665                 return 0;
1666         }
1667
1668         while ((! error) && (x_fgets(buf, sizeof(buf)-1, inclusion))) {
1669                 if (inclusion_buffer == NULL) {
1670                         inclusion_buffer_size = 1024;
1671                         if ((inclusion_buffer = (char *)SMB_MALLOC(inclusion_buffer_size)) == NULL) {
1672                                 DEBUG(0,("failure allocating buffer to read inclusion file\n"));
1673                                 error = 1;
1674                                 break;
1675                         }
1676                 }
1677
1678                 if (buf[strlen(buf)-1] == '\n') {
1679                         buf[strlen(buf)-1] = '\0';
1680                 }
1681
1682                 if ((strlen(buf) + 1 + inclusion_buffer_sofar) >= inclusion_buffer_size) {
1683                         inclusion_buffer_size *= 2;
1684                         inclusion_buffer = (char *)SMB_REALLOC(inclusion_buffer,inclusion_buffer_size);
1685                         if (!inclusion_buffer) {
1686                                 DEBUG(0,("failure enlarging inclusion buffer to %d bytes\n",
1687                                                 inclusion_buffer_size));
1688                                 error = 1;
1689                                 break;
1690                         }
1691                 }
1692
1693                 safe_strcpy(inclusion_buffer + inclusion_buffer_sofar, buf, inclusion_buffer_size - inclusion_buffer_sofar);
1694                 inclusion_buffer_sofar += strlen(buf) + 1;
1695                 clipn++;
1696         }
1697         x_fclose(inclusion);
1698
1699         if (! error) {
1700                 /* Allocate an array of clipn + 1 char*'s for cliplist */
1701                 cliplist = SMB_MALLOC_ARRAY(char *, clipn + 1);
1702                 if (cliplist == NULL) {
1703                         DEBUG(0,("failure allocating memory for cliplist\n"));
1704                         error = 1;
1705                 } else {
1706                         cliplist[clipn] = NULL;
1707                         p = inclusion_buffer;
1708                         for (i = 0; (! error) && (i < clipn); i++) {
1709                                 /* set current item to NULL so array will be null-terminated even if
1710                                                 * malloc fails below. */
1711                                 cliplist[i] = NULL;
1712                                 if ((tmpstr = (char *)SMB_MALLOC(strlen(p)+1)) == NULL) {
1713                                         DEBUG(0, ("Could not allocate space for a cliplist item, # %i\n", i));
1714                                         error = 1;
1715                                 } else {
1716                                         unfixtarname(tmpstr, p, strlen(p) + 1, True);
1717                                         cliplist[i] = tmpstr;
1718                                         if ((p = strchr_m(p, '\000')) == NULL) {
1719                                                 DEBUG(0,("INTERNAL ERROR: inclusion_buffer is of unexpected contents.\n"));
1720                                                 abort();
1721                                         }
1722                                 }
1723                                 ++p;
1724                         }
1725                         must_free_cliplist = True;
1726                 }
1727         }
1728
1729         SAFE_FREE(inclusion_buffer);
1730         if (error) {
1731                 if (cliplist) {
1732                         char **pp;
1733                         /* We know cliplist is always null-terminated */
1734                         for (pp = cliplist; *pp; ++pp) {
1735                                 SAFE_FREE(*pp);
1736                         }
1737                         SAFE_FREE(cliplist);
1738                         cliplist = NULL;
1739                         must_free_cliplist = False;
1740                 }
1741                 return 0;
1742         }
1743
1744         /* cliplist and its elements are freed at the end of process_tar. */
1745         return 1;
1746 }
1747
1748 /****************************************************************************
1749 Parse tar arguments. Sets tar_type, tar_excl, etc.
1750 ***************************************************************************/
1751
1752 int tar_parseargs(int argc, char *argv[], const char *Optarg, int Optind)
1753 {
1754         int newOptind = Optind;
1755         char tar_clipfl='\0';
1756
1757         /* Reset back to defaults - could be from interactive version
1758          * reset mode and archive mode left as they are though
1759          */
1760         tar_type='\0';
1761         tar_excl=True;
1762         dry_run=False;
1763
1764         while (*Optarg) {
1765                 switch(*Optarg++) {
1766                         case 'c':
1767                                 tar_type='c';
1768                                 break;
1769                         case 'x':
1770                                 if (tar_type=='c') {
1771                                         printf("Tar must be followed by only one of c or x.\n");
1772                                         return 0;
1773                                 }
1774                                 tar_type='x';
1775                                 break;
1776                         case 'b':
1777                                 if (Optind>=argc || !(blocksize=atoi(argv[Optind]))) {
1778                                         DEBUG(0,("Option b must be followed by valid blocksize\n"));
1779                                         return 0;
1780                                 } else {
1781                                         Optind++;
1782                                         newOptind++;
1783                                 }
1784                                 break;
1785                         case 'g':
1786                                 tar_inc=True;
1787                                 break;
1788                         case 'N':
1789                                 if (Optind>=argc) {
1790                                         DEBUG(0,("Option N must be followed by valid file name\n"));
1791                                         return 0;
1792                                 } else {
1793                                         SMB_STRUCT_STAT stbuf;
1794
1795                                         if (sys_stat(argv[Optind], &stbuf) == 0) {
1796                                                 newer_than = stbuf.st_mtime;
1797                                                 DEBUG(1,("Getting files newer than %s",
1798                                                         time_to_asc(newer_than)));
1799                                                 newOptind++;
1800                                                 Optind++;
1801                                         } else {
1802                                                 DEBUG(0,("Error setting newer-than time\n"));
1803                                                 return 0;
1804                                         }
1805                                 }
1806                                 break;
1807                         case 'a':
1808                                 tar_reset=True;
1809                                 break;
1810                         case 'q':
1811                                 tar_noisy=False;
1812                                 break;
1813                         case 'I':
1814                                 if (tar_clipfl) {
1815                                         DEBUG(0,("Only one of I,X,F must be specified\n"));
1816                                         return 0;
1817                                 }
1818                                 tar_clipfl='I';
1819                                 break;
1820                         case 'X':
1821                                 if (tar_clipfl) {
1822                                         DEBUG(0,("Only one of I,X,F must be specified\n"));
1823                                         return 0;
1824                                 }
1825                                 tar_clipfl='X';
1826                                 break;
1827                         case 'F':
1828                                 if (tar_clipfl) {
1829                                         DEBUG(0,("Only one of I,X,F must be specified\n"));
1830                                         return 0;
1831                                 }
1832                                 tar_clipfl='F';
1833                                 break;
1834                         case 'r':
1835                                 DEBUG(0, ("tar_re_search set\n"));
1836                                 tar_re_search = True;
1837                                 break;
1838                         case 'n':
1839                                 if (tar_type == 'c') {
1840                                         DEBUG(0, ("dry_run set\n"));
1841                                         dry_run = True;
1842                                 } else {
1843                                         DEBUG(0, ("n is only meaningful when creating a tar-file\n"));
1844                                         return 0;
1845                                 }
1846                                 break;
1847                         default:
1848                                 DEBUG(0,("Unknown tar option\n"));
1849                                 return 0;
1850                 }
1851         }
1852
1853         if (!tar_type) {
1854                 printf("Option T must be followed by one of c or x.\n");
1855                 return 0;
1856         }
1857
1858         /* tar_excl is true if cliplist lists files to be included.
1859          * Both 'I' and 'F' mean include. */
1860         tar_excl=tar_clipfl!='X';
1861
1862         if (tar_clipfl=='F') {
1863                 if (argc-Optind-1 != 1) {
1864                         DEBUG(0,("Option F must be followed by exactly one filename.\n"));
1865                         return 0;
1866                 }
1867                 newOptind++;
1868                 /* Optind points at the tar output file, Optind+1 at the inclusion file. */
1869                 if (! read_inclusion_file(argv[Optind+1])) {
1870                         return 0;
1871                 }
1872         } else if (Optind+1<argc && !tar_re_search) { /* For backwards compatibility */
1873                 char *tmpstr;
1874                 char **tmplist;
1875                 int clipcount;
1876
1877                 cliplist=argv+Optind+1;
1878                 clipn=argc-Optind-1;
1879                 clipcount = clipn;
1880
1881                 if ((tmplist=SMB_MALLOC_ARRAY(char *,clipn)) == NULL) {
1882                         DEBUG(0, ("Could not allocate space to process cliplist, count = %i\n", clipn));
1883                         return 0;
1884                 }
1885
1886                 for (clipcount = 0; clipcount < clipn; clipcount++) {
1887
1888                         DEBUG(5, ("Processing an item, %s\n", cliplist[clipcount]));
1889
1890                         if ((tmpstr = (char *)SMB_MALLOC(strlen(cliplist[clipcount])+1)) == NULL) {
1891                                 DEBUG(0, ("Could not allocate space for a cliplist item, # %i\n", clipcount));
1892                                 SAFE_FREE(tmplist);
1893                                 return 0;
1894                         }
1895
1896                         unfixtarname(tmpstr, cliplist[clipcount], strlen(cliplist[clipcount]) + 1, True);
1897                         tmplist[clipcount] = tmpstr;
1898                         DEBUG(5, ("Processed an item, %s\n", tmpstr));
1899
1900                         DEBUG(5, ("Cliplist is: %s\n", cliplist[0]));
1901                 }
1902
1903                 cliplist = tmplist;
1904                 must_free_cliplist = True;
1905
1906                 newOptind += clipn;
1907         }
1908
1909         if (Optind+1<argc && tar_re_search && tar_clipfl != 'F') {
1910                 /* Doing regular expression seaches not from an inclusion file. */
1911                 clipn=argc-Optind-1;
1912                 cliplist=argv+Optind+1;
1913                 newOptind += clipn;
1914         }
1915
1916         if (Optind>=argc || !strcmp(argv[Optind], "-")) {
1917                 /* Sets tar handle to either 0 or 1, as appropriate */
1918                 tarhandle=(tar_type=='c');
1919                 /*
1920                  * Make sure that dbf points to stderr if we are using stdout for
1921                  * tar output
1922                  */
1923                 if (tarhandle == 1)  {
1924                         dbf = x_stderr;
1925                 }
1926                 if (!argv[Optind]) {
1927                         DEBUG(0,("Must specify tar filename\n"));
1928                         return 0;
1929                 }
1930                 if (!strcmp(argv[Optind], "-")) {
1931                         newOptind++;
1932                 }
1933
1934         } else {
1935                 if (tar_type=='c' && dry_run) {
1936                         tarhandle=-1;
1937                 } else if ((tar_type=='x' && (tarhandle = sys_open(argv[Optind], O_RDONLY, 0)) == -1)
1938                                         || (tar_type=='c' && (tarhandle=sys_creat(argv[Optind], 0644)) < 0)) {
1939                         DEBUG(0,("Error opening local file %s - %s\n", argv[Optind], strerror(errno)));
1940                         return(0);
1941                 }
1942                 newOptind++;
1943         }
1944
1945         return newOptind;
1946 }