SAMBA_3_2_MERGE/source/lib/util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Andrew Tridgell 1992-1998
   5    Copyright (C) Jeremy Allison 2001-2002
   6    Copyright (C) Simo Sorce 2001
   7    Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  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
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25
  26 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
  27 #ifdef WITH_NISPLUS_HOME
  28 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
  29 /*
  30  * The following lines are needed due to buggy include files
  31  * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
  32  * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
  33  * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
  34  * an enum in /usr/include/rpcsvc/nis.h.
  35  */
  36
  37 #if defined(GROUP)
  38 #undef GROUP
  39 #endif
  40
  41 #if defined(GROUP_OBJ)
  42 #undef GROUP_OBJ
  43 #endif
  44
  45 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
  46
  47 #include <rpcsvc/nis.h>
  48
  49 #else /* !WITH_NISPLUS_HOME */
  50
  51 #include "rpcsvc/ypclnt.h"
  52
  53 #endif /* WITH_NISPLUS_HOME */
  54 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
  55
  56 int Protocol = PROTOCOL_COREPLUS;
  57
  58 /* a default finfo structure to ensure all fields are sensible */
  59 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
  60
  61 /* this is used by the chaining code */
  62 int chain_size = 0;
  63
  64 int trans_num = 0;
  65
  66 static enum remote_arch_types ra_type = RA_UNKNOWN;
  67
  68 /***********************************************************************
  69  Definitions for all names.
  70 ***********************************************************************/
  71
  72 static char *smb_myname;
  73 static char *smb_myworkgroup;
  74 static char *smb_scope;
  75 static int smb_num_netbios_names;
  76 static char **smb_my_netbios_names;
  77
  78 /***********************************************************************
  79  Allocate and set myname. Ensure upper case.
  80 ***********************************************************************/
  81
  82 BOOL set_global_myname(const char *myname)
  83 {
  84         SAFE_FREE(smb_myname);
  85         smb_myname = strdup(myname);
  86         if (!smb_myname)
  87                 return False;
  88         strupper_m(smb_myname);
  89         return True;
  90 }
  91
  92 const char *global_myname(void)
  93 {
  94         return smb_myname;
  95 }
  96
  97 /***********************************************************************
  98  Allocate and set myworkgroup. Ensure upper case.
  99 ***********************************************************************/
 100
 101 BOOL set_global_myworkgroup(const char *myworkgroup)
 102 {
 103         SAFE_FREE(smb_myworkgroup);
 104         smb_myworkgroup = strdup(myworkgroup);
 105         if (!smb_myworkgroup)
 106                 return False;
 107         strupper_m(smb_myworkgroup);
 108         return True;
 109 }
 110
 111 const char *lp_workgroup(void)
 112 {
 113         return smb_myworkgroup;
 114 }
 115
 116 /***********************************************************************
 117  Allocate and set scope. Ensure upper case.
 118 ***********************************************************************/
 119
 120 BOOL set_global_scope(const char *scope)
 121 {
 122         SAFE_FREE(smb_scope);
 123         smb_scope = strdup(scope);
 124         if (!smb_scope)
 125                 return False;
 126         strupper_m(smb_scope);
 127         return True;
 128 }
 129
 130 /*********************************************************************
 131  Ensure scope is never null string.
 132 *********************************************************************/
 133
 134 const char *global_scope(void)
 135 {
 136         if (!smb_scope)
 137                 set_global_scope("");
 138         return smb_scope;
 139 }
 140
 141 static void free_netbios_names_array(void)
 142 {
 143         int i;
 144
 145         for (i = 0; i < smb_num_netbios_names; i++)
 146                 SAFE_FREE(smb_my_netbios_names[i]);
 147
 148         SAFE_FREE(smb_my_netbios_names);
 149         smb_num_netbios_names = 0;
 150 }
 151
 152 static BOOL allocate_my_netbios_names_array(size_t number)
 153 {
 154         free_netbios_names_array();
 155
 156         smb_num_netbios_names = number + 1;
 157         smb_my_netbios_names = (char **)malloc( sizeof(char *) * smb_num_netbios_names );
 158
 159         if (!smb_my_netbios_names)
 160                 return False;
 161
 162         memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
 163         return True;
 164 }
 165
 166 static BOOL set_my_netbios_names(const char *name, int i)
 167 {
 168         SAFE_FREE(smb_my_netbios_names[i]);
 169
 170         smb_my_netbios_names[i] = strdup(name);
 171         if (!smb_my_netbios_names[i])
 172                 return False;
 173         strupper_m(smb_my_netbios_names[i]);
 174         return True;
 175 }
 176
 177 const char *my_netbios_names(int i)
 178 {
 179         return smb_my_netbios_names[i];
 180 }
 181
 182 BOOL set_netbios_aliases(const char **str_array)
 183 {
 184         size_t namecount;
 185
 186         /* Work out the max number of netbios aliases that we have */
 187         for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
 188                 ;
 189
 190         if ( global_myname() && *global_myname())
 191                 namecount++;
 192
 193         /* Allocate space for the netbios aliases */
 194         if (!allocate_my_netbios_names_array(namecount))
 195                 return False;
 196
 197         /* Use the global_myname string first */
 198         namecount=0;
 199         if ( global_myname() && *global_myname()) {
 200                 set_my_netbios_names( global_myname(), namecount );
 201                 namecount++;
 202         }
 203
 204         if (str_array) {
 205                 size_t i;
 206                 for ( i = 0; str_array[i] != NULL; i++) {
 207                         size_t n;
 208                         BOOL duplicate = False;
 209
 210                         /* Look for duplicates */
 211                         for( n=0; n<namecount; n++ ) {
 212                                 if( strequal( str_array[i], my_netbios_names(n) ) ) {
 213                                         duplicate = True;
 214                                         break;
 215                                 }
 216                         }
 217                         if (!duplicate) {
 218                                 if (!set_my_netbios_names(str_array[i], namecount))
 219                                         return False;
 220                                 namecount++;
 221                         }
 222                 }
 223         }
 224         return True;
 225 }
 226
 227 /****************************************************************************
 228   Common name initialization code.
 229 ****************************************************************************/
 230
 231 BOOL init_names(void)
 232 {
 233         extern fstring local_machine;
 234         char *p;
 235         int n;
 236
 237         if (global_myname() == NULL || *global_myname() == '\0') {
 238                 if (!set_global_myname(myhostname())) {
 239                         DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
 240                         return False;
 241                 }
 242         }
 243
 244         if (!set_netbios_aliases(lp_netbios_aliases())) {
 245                 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
 246                 return False;
 247         }
 248
 249         fstrcpy( local_machine, global_myname() );
 250         trim_char( local_machine, ' ', ' ' );
 251         p = strchr( local_machine, ' ' );
 252         if (p)
 253                 *p = 0;
 254         strlower_m( local_machine );
 255
 256         DEBUG( 5, ("Netbios name list:-\n") );
 257         for( n=0; my_netbios_names(n); n++ )
 258                 DEBUGADD( 5, ( "my_netbios_names[%d]=\"%s\"\n", n, my_netbios_names(n) ) );
 259
 260         return( True );
 261 }
 262
 263 /**************************************************************************n
 264  Find a suitable temporary directory. The result should be copied immediately
 265  as it may be overwritten by a subsequent call.
 266 ****************************************************************************/
 267
 268 const char *tmpdir(void)
 269 {
 270         char *p;
 271         if ((p = getenv("TMPDIR")))
 272                 return p;
 273         return "/tmp";
 274 }
 275
 276 /****************************************************************************
 277  Determine whether we are in the specified group.
 278 ****************************************************************************/
 279
 280 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, const gid_t *groups)
 281 {
 282         int i;
 283
 284         if (group == current_gid)
 285                 return(True);
 286
 287         for (i=0;i<ngroups;i++)
 288                 if (group == groups[i])
 289                         return(True);
 290
 291         return(False);
 292 }
 293
 294 /****************************************************************************
 295  Like atoi but gets the value up to the separator character.
 296 ****************************************************************************/
 297
 298 static const char *Atoic(const char *p, int *n, const char *c)
 299 {
 300         if (!isdigit((int)*p)) {
 301                 DEBUG(5, ("Atoic: malformed number\n"));
 302                 return NULL;
 303         }
 304
 305         (*n) = atoi(p);
 306
 307         while ((*p) && isdigit((int)*p))
 308                 p++;
 309
 310         if (strchr_m(c, *p) == NULL) {
 311                 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
 312                 return NULL;
 313         }
 314
 315         return p;
 316 }
 317
 318 /*************************************************************************
 319  Reads a list of numbers.
 320  *************************************************************************/
 321
 322 const char *get_numlist(const char *p, uint32 **num, int *count)
 323 {
 324         int val;
 325
 326         if (num == NULL || count == NULL)
 327                 return NULL;
 328
 329         (*count) = 0;
 330         (*num  ) = NULL;
 331
 332         while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':') {
 333                 uint32 *tn;
 334
 335                 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
 336                 if (tn == NULL) {
 337                         SAFE_FREE(*num);
 338                         return NULL;
 339                 } else
 340                         (*num) = tn;
 341                 (*num)[(*count)] = val;
 342                 (*count)++;
 343                 p++;
 344         }
 345
 346         return p;
 347 }
 348
 349 /*******************************************************************
 350  Check if a file exists - call vfs_file_exist for samba files.
 351 ********************************************************************/
 352
 353 BOOL file_exist(const char *fname,SMB_STRUCT_STAT *sbuf)
 354 {
 355         SMB_STRUCT_STAT st;
 356         if (!sbuf)
 357                 sbuf = &st;
 358
 359         if (sys_stat(fname,sbuf) != 0)
 360                 return(False);
 361
 362         return((S_ISREG(sbuf->st_mode)) || (S_ISFIFO(sbuf->st_mode)));
 363 }
 364
 365 /*******************************************************************
 366  Check a files mod time.
 367 ********************************************************************/
 368
 369 time_t file_modtime(const char *fname)
 370 {
 371         SMB_STRUCT_STAT st;
 372
 373         if (sys_stat(fname,&st) != 0)
 374                 return(0);
 375
 376         return(st.st_mtime);
 377 }
 378
 379 /*******************************************************************
 380  Check if a directory exists.
 381 ********************************************************************/
 382
 383 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
 384 {
 385         SMB_STRUCT_STAT st2;
 386         BOOL ret;
 387
 388         if (!st)
 389                 st = &st2;
 390
 391         if (sys_stat(dname,st) != 0)
 392                 return(False);
 393
 394         ret = S_ISDIR(st->st_mode);
 395         if(!ret)
 396                 errno = ENOTDIR;
 397         return ret;
 398 }
 399
 400 /*******************************************************************
 401  Returns the size in bytes of the named file.
 402 ********************************************************************/
 403
 404 SMB_OFF_T get_file_size(char *file_name)
 405 {
 406         SMB_STRUCT_STAT buf;
 407         buf.st_size = 0;
 408         if(sys_stat(file_name,&buf) != 0)
 409                 return (SMB_OFF_T)-1;
 410         return(buf.st_size);
 411 }
 412
 413 /*******************************************************************
 414  Show a smb message structure.
 415 ********************************************************************/
 416
 417 void show_msg(char *buf)
 418 {
 419         int i;
 420         int bcc=0;
 421
 422         if (!DEBUGLVL(5))
 423                 return;
 424
 425         DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
 426                         smb_len(buf),
 427                         (int)CVAL(buf,smb_com),
 428                         (int)CVAL(buf,smb_rcls),
 429                         (int)CVAL(buf,smb_reh),
 430                         (int)SVAL(buf,smb_err),
 431                         (int)CVAL(buf,smb_flg),
 432                         (int)SVAL(buf,smb_flg2)));
 433         DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
 434                         (int)SVAL(buf,smb_tid),
 435                         (int)SVAL(buf,smb_pid),
 436                         (int)SVAL(buf,smb_uid),
 437                         (int)SVAL(buf,smb_mid)));
 438         DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
 439
 440         for (i=0;i<(int)CVAL(buf,smb_wct);i++)
 441                 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
 442                         SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
 443
 444         bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
 445
 446         DEBUGADD(5,("smb_bcc=%d\n",bcc));
 447
 448         if (DEBUGLEVEL < 10)
 449                 return;
 450
 451         if (DEBUGLEVEL < 50)
 452                 bcc = MIN(bcc, 512);
 453
 454         dump_data(10, smb_buf(buf), bcc);
 455 }
 456
 457 /*******************************************************************
 458  Set the length and marker of an smb packet.
 459 ********************************************************************/
 460
 461 void smb_setlen(char *buf,int len)
 462 {
 463         _smb_setlen(buf,len);
 464
 465         SCVAL(buf,4,0xFF);
 466         SCVAL(buf,5,'S');
 467         SCVAL(buf,6,'M');
 468         SCVAL(buf,7,'B');
 469 }
 470
 471 /*******************************************************************
 472  Setup the word count and byte count for a smb message.
 473 ********************************************************************/
 474
 475 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
 476 {
 477         if (zero)
 478                 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
 479         SCVAL(buf,smb_wct,num_words);
 480         SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
 481         smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
 482         return (smb_size + num_words*2 + num_bytes);
 483 }
 484
 485 /*******************************************************************
 486  Setup only the byte count for a smb message.
 487 ********************************************************************/
 488
 489 int set_message_bcc(char *buf,int num_bytes)
 490 {
 491         int num_words = CVAL(buf,smb_wct);
 492         SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
 493         smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
 494         return (smb_size + num_words*2 + num_bytes);
 495 }
 496
 497 /*******************************************************************
 498  Setup only the byte count for a smb message, using the end of the
 499  message as a marker.
 500 ********************************************************************/
 501
 502 int set_message_end(void *outbuf,void *end_ptr)
 503 {
 504         return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
 505 }
 506
 507 /*******************************************************************
 508  Reduce a file name, removing .. elements.
 509 ********************************************************************/
 510
 511 void unix_clean_name(char *s)
 512 {
 513         char *p=NULL;
 514
 515         DEBUG(3,("unix_clean_name [%s]\n",s));
 516
 517         /* remove any double slashes */
 518         all_string_sub(s, "//","/", 0);
 519
 520         /* Remove leading ./ characters */
 521         if(strncmp(s, "./", 2) == 0) {
 522                 trim_string(s, "./", NULL);
 523                 if(*s == 0)
 524                         pstrcpy(s,"./");
 525         }
 526
 527         while ((p = strstr_m(s,"/../")) != NULL) {
 528                 pstring s1;
 529
 530                 *p = 0;
 531                 pstrcpy(s1,p+3);
 532
 533                 if ((p=strrchr_m(s,'/')) != NULL)
 534                         *p = 0;
 535                 else
 536                         *s = 0;
 537                 pstrcat(s,s1);
 538         }
 539
 540         trim_string(s,NULL,"/..");
 541 }
 542
 543 /****************************************************************************
 544  Make a dir struct.
 545 ****************************************************************************/
 546
 547 void make_dir_struct(char *buf, const char *mask, const char *fname,SMB_OFF_T size,int mode,time_t date, BOOL case_sensitive)
 548 {
 549         char *p;
 550         pstring mask2;
 551
 552         pstrcpy(mask2,mask);
 553
 554         if ((mode & aDIR) != 0)
 555                 size = 0;
 556
 557         memset(buf+1,' ',11);
 558         if ((p = strchr_m(mask2,'.')) != NULL) {
 559                 *p = 0;
 560                 push_ascii(buf+1,mask2,8, 0);
 561                 push_ascii(buf+9,p+1,3, 0);
 562                 *p = '.';
 563         } else
 564                 push_ascii(buf+1,mask2,11, 0);
 565
 566         memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
 567         SCVAL(buf,21,mode);
 568         put_dos_date(buf,22,date);
 569         SSVAL(buf,26,size & 0xFFFF);
 570         SSVAL(buf,28,(size >> 16)&0xFFFF);
 571         push_ascii(buf+30,fname,12, case_sensitive ? 0 : STR_UPPER);
 572         DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
 573 }
 574
 575 /*******************************************************************
 576  Close the low 3 fd's and open dev/null in their place.
 577 ********************************************************************/
 578
 579 void close_low_fds(BOOL stderr_too)
 580 {
 581 #ifndef VALGRIND
 582         int fd;
 583         int i;
 584
 585         close(0);
 586         close(1);
 587
 588         if (stderr_too)
 589                 close(2);
 590
 591         /* try and use up these file descriptors, so silly
 592                 library routines writing to stdout etc won't cause havoc */
 593         for (i=0;i<3;i++) {
 594                 if (i == 2 && !stderr_too)
 595                         continue;
 596
 597                 fd = sys_open("/dev/null",O_RDWR,0);
 598                 if (fd < 0)
 599                         fd = sys_open("/dev/null",O_WRONLY,0);
 600                 if (fd < 0) {
 601                         DEBUG(0,("Can't open /dev/null\n"));
 602                         return;
 603                 }
 604                 if (fd != i) {
 605                         DEBUG(0,("Didn't get file descriptor %d\n",i));
 606                         return;
 607                 }
 608         }
 609 #endif
 610 }
 611
 612 /****************************************************************************
 613  Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
 614  else
 615   if SYSV use O_NDELAY
 616   if BSD use FNDELAY
 617 ****************************************************************************/
 618
 619 int set_blocking(int fd, BOOL set)
 620 {
 621         int val;
 622 #ifdef O_NONBLOCK
 623 #define FLAG_TO_SET O_NONBLOCK
 624 #else
 625 #ifdef SYSV
 626 #define FLAG_TO_SET O_NDELAY
 627 #else /* BSD */
 628 #define FLAG_TO_SET FNDELAY
 629 #endif
 630 #endif
 631
 632         if((val = sys_fcntl_long(fd, F_GETFL, 0)) == -1)
 633                 return -1;
 634         if(set) /* Turn blocking on - ie. clear nonblock flag */
 635                 val &= ~FLAG_TO_SET;
 636         else
 637                 val |= FLAG_TO_SET;
 638         return sys_fcntl_long( fd, F_SETFL, val);
 639 #undef FLAG_TO_SET
 640 }
 641
 642 /****************************************************************************
 643  Transfer some data between two fd's.
 644 ****************************************************************************/
 645
 646 #ifndef TRANSFER_BUF_SIZE
 647 #define TRANSFER_BUF_SIZE 65536
 648 #endif
 649
 650 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
 651                                                 ssize_t (*write_fn)(int, const void *, size_t))
 652 {
 653         char *buf;
 654         size_t total = 0;
 655         ssize_t read_ret;
 656         ssize_t write_ret;
 657         size_t num_to_read_thistime;
 658         size_t num_written = 0;
 659
 660         if ((buf = malloc(TRANSFER_BUF_SIZE)) == NULL)
 661                 return -1;
 662
 663         while (total < n) {
 664                 num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
 665
 666                 read_ret = (*read_fn)(infd, buf, num_to_read_thistime);
 667                 if (read_ret == -1) {
 668                         DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
 669                         SAFE_FREE(buf);
 670                         return -1;
 671                 }
 672                 if (read_ret == 0)
 673                         break;
 674
 675                 num_written = 0;
 676
 677                 while (num_written < read_ret) {
 678                         write_ret = (*write_fn)(outfd,buf + num_written, read_ret - num_written);
 679
 680                         if (write_ret == -1) {
 681                                 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
 682                                 SAFE_FREE(buf);
 683                                 return -1;
 684                         }
 685                         if (write_ret == 0)
 686                                 return (ssize_t)total;
 687
 688                         num_written += (size_t)write_ret;
 689                 }
 690
 691                 total += (size_t)read_ret;
 692         }
 693
 694         SAFE_FREE(buf);
 695         return (ssize_t)total;
 696 }
 697
 698 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
 699 {
 700         return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, sys_read, sys_write);
 701 }
 702
 703 /*******************************************************************
 704  Sleep for a specified number of milliseconds.
 705 ********************************************************************/
 706
 707 void smb_msleep(unsigned int t)
 708 {
 709         unsigned int tdiff=0;
 710         struct timeval tval,t1,t2;
 711         fd_set fds;
 712
 713         GetTimeOfDay(&t1);
 714         GetTimeOfDay(&t2);
 715
 716         while (tdiff < t) {
 717                 tval.tv_sec = (t-tdiff)/1000;
 718                 tval.tv_usec = 1000*((t-tdiff)%1000);
 719
 720                 /* Never wait for more than 1 sec. */
 721                 if (tval.tv_sec > 1) {
 722                         tval.tv_sec = 1;
 723                         tval.tv_usec = 0;
 724                 }
 725
 726                 FD_ZERO(&fds);
 727                 errno = 0;
 728                 sys_select_intr(0,&fds,NULL,NULL,&tval);
 729
 730                 GetTimeOfDay(&t2);
 731                 if (t2.tv_sec < t1.tv_sec) {
 732                         /* Someone adjusted time... */
 733                         t1 = t2;
 734                 }
 735
 736                 tdiff = TvalDiff(&t1,&t2);
 737         }
 738 }
 739
 740 /****************************************************************************
 741  Become a daemon, discarding the controlling terminal.
 742 ****************************************************************************/
 743
 744 void become_daemon(BOOL Fork)
 745 {
 746         if (Fork) {
 747                 if (sys_fork()) {
 748                         _exit(0);
 749                 }
 750         }
 751
 752   /* detach from the terminal */
 753 #ifdef HAVE_SETSID
 754         setsid();
 755 #elif defined(TIOCNOTTY)
 756         {
 757                 int i = sys_open("/dev/tty", O_RDWR, 0);
 758                 if (i != -1) {
 759                         ioctl(i, (int) TIOCNOTTY, (char *)0);
 760                         close(i);
 761                 }
 762         }
 763 #endif /* HAVE_SETSID */
 764
 765         /* Close fd's 0,1,2. Needed if started by rsh */
 766         close_low_fds(False);  /* Don't close stderr, let the debug system
 767                                   attach it to the logfile */
 768 }
 769
 770
 771 /****************************************************************************
 772  Expand a pointer to be a particular size.
 773 ****************************************************************************/
 774
 775 void *Realloc(void *p,size_t size)
 776 {
 777         void *ret=NULL;
 778
 779         if (size == 0) {
 780                 SAFE_FREE(p);
 781                 DEBUG(5,("Realloc asked for 0 bytes\n"));
 782                 return NULL;
 783         }
 784
 785         if (!p)
 786                 ret = (void *)malloc(size);
 787         else
 788                 ret = (void *)realloc(p,size);
 789
 790         if (!ret)
 791                 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
 792
 793         return(ret);
 794 }
 795
 796 void *Realloc_zero(void *ptr, size_t size)
 797 {
 798         void *tptr = NULL;
 799
 800         tptr = Realloc(ptr, size);
 801         if(tptr == NULL)
 802                 return NULL;
 803
 804         memset((char *)tptr,'\0',size);
 805
 806         return tptr;
 807 }
 808
 809 /****************************************************************************
 810  Free memory, checks for NULL.
 811  Use directly SAFE_FREE()
 812  Exists only because we need to pass a function pointer somewhere --SSS
 813 ****************************************************************************/
 814
 815 void safe_free(void *p)
 816 {
 817         SAFE_FREE(p);
 818 }
 819
 820 /****************************************************************************
 821  Get my own name and IP.
 822 ****************************************************************************/
 823
 824 BOOL get_myname(char *my_name)
 825 {
 826         pstring hostname;
 827
 828         *hostname = 0;
 829
 830         /* get my host name */
 831         if (gethostname(hostname, sizeof(hostname)) == -1) {
 832                 DEBUG(0,("gethostname failed\n"));
 833                 return False;
 834         }
 835
 836         /* Ensure null termination. */
 837         hostname[sizeof(hostname)-1] = '\0';
 838
 839         if (my_name) {
 840                 /* split off any parts after an initial . */
 841                 char *p = strchr_m(hostname,'.');
 842
 843                 if (p)
 844                         *p = 0;
 845
 846                 fstrcpy(my_name,hostname);
 847         }
 848
 849         return(True);
 850 }
 851
 852
 853 /****************************************************************************
 854  Get my own name, including domain.
 855 ****************************************************************************/
 856
 857 BOOL get_myfullname(char *my_name)
 858 {
 859         pstring hostname;
 860
 861         *hostname = 0;
 862
 863         /* get my host name */
 864         if (gethostname(hostname, sizeof(hostname)) == -1) {
 865                 DEBUG(0,("gethostname failed\n"));
 866                 return False;
 867         }
 868
 869         /* Ensure null termination. */
 870         hostname[sizeof(hostname)-1] = '\0';
 871
 872         if (my_name)
 873                 fstrcpy(my_name, hostname);
 874         return True;
 875 }
 876
 877 /****************************************************************************
 878  Get my own domain name.
 879 ****************************************************************************/
 880
 881 BOOL get_mydomname(fstring my_domname)
 882 {
 883         pstring hostname;
 884         char *p;
 885
 886         *hostname = 0;
 887         /* get my host name */
 888         if (gethostname(hostname, sizeof(hostname)) == -1) {
 889                 DEBUG(0,("gethostname failed\n"));
 890                 return False;
 891         }
 892
 893         /* Ensure null termination. */
 894         hostname[sizeof(hostname)-1] = '\0';
 895
 896         p = strchr_m(hostname, '.');
 897
 898         if (!p)
 899                 return False;
 900
 901         p++;
 902
 903         if (my_domname)
 904                 fstrcpy(my_domname, p);
 905
 906         return True;
 907 }
 908
 909 /****************************************************************************
 910  Get my own canonical name, including domain.
 911 ****************************************************************************/
 912
 913 BOOL get_mydnsfullname(fstring my_dnsname)
 914 {
 915         static fstring dnshostname;
 916         struct hostent *hp;
 917
 918         if (!*dnshostname) {
 919                 /* get my host name */
 920                 if (gethostname(dnshostname, sizeof(dnshostname)) == -1) {
 921                         *dnshostname = '\0';
 922                         DEBUG(0,("gethostname failed\n"));
 923                         return False;
 924                 }
 925
 926                 /* Ensure null termination. */
 927                 dnshostname[sizeof(dnshostname)-1] = '\0';
 928
 929                 /* Ensure we get the cannonical name. */
 930                 if (!(hp = sys_gethostbyname(dnshostname))) {
 931                         *dnshostname = '\0';
 932                         return False;
 933                 }
 934                 fstrcpy(dnshostname, hp->h_name);
 935         }
 936         fstrcpy(my_dnsname, dnshostname);
 937         return True;
 938 }
 939
 940 /****************************************************************************
 941  Get my own domain name.
 942 ****************************************************************************/
 943
 944 BOOL get_mydnsdomname(fstring my_domname)
 945 {
 946         fstring domname;
 947         char *p;
 948
 949         *my_domname = '\0';
 950         if (!get_mydnsfullname(domname)) {
 951                 return False;
 952         }
 953         p = strchr_m(domname, '.');
 954         if (p) {
 955                 p++;
 956                 fstrcpy(my_domname, p);
 957         }
 958
 959         return False;
 960 }
 961
 962 /****************************************************************************
 963  Interpret a protocol description string, with a default.
 964 ****************************************************************************/
 965
 966 int interpret_protocol(const char *str,int def)
 967 {
 968         if (strequal(str,"NT1"))
 969                 return(PROTOCOL_NT1);
 970         if (strequal(str,"LANMAN2"))
 971                 return(PROTOCOL_LANMAN2);
 972         if (strequal(str,"LANMAN1"))
 973                 return(PROTOCOL_LANMAN1);
 974         if (strequal(str,"CORE"))
 975                 return(PROTOCOL_CORE);
 976         if (strequal(str,"COREPLUS"))
 977                 return(PROTOCOL_COREPLUS);
 978         if (strequal(str,"CORE+"))
 979                 return(PROTOCOL_COREPLUS);
 980
 981         DEBUG(0,("Unrecognised protocol level %s\n",str));
 982
 983         return(def);
 984 }
 985
 986 /****************************************************************************
 987  Return true if a string could be a pure IP address.
 988 ****************************************************************************/
 989
 990 BOOL is_ipaddress(const char *str)
 991 {
 992         BOOL pure_address = True;
 993         int i;
 994
 995         for (i=0; pure_address && str[i]; i++)
 996                 if (!(isdigit((int)str[i]) || str[i] == '.'))
 997                         pure_address = False;
 998
 999         /* Check that a pure number is not misinterpreted as an IP */
1000         pure_address = pure_address && (strchr_m(str, '.') != NULL);
1001
1002         return pure_address;
1003 }
1004
1005 /****************************************************************************
1006  Interpret an internet address or name into an IP address in 4 byte form.
1007 ****************************************************************************/
1008
1009 uint32 interpret_addr(const char *str)
1010 {
1011         struct hostent *hp;
1012         uint32 res;
1013
1014         if (strcmp(str,"0.0.0.0") == 0)
1015                 return(0);
1016         if (strcmp(str,"255.255.255.255") == 0)
1017                 return(0xFFFFFFFF);
1018
1019   /* if it's in the form of an IP address then get the lib to interpret it */
1020         if (is_ipaddress(str)) {
1021                 res = inet_addr(str);
1022         } else {
1023                 /* otherwise assume it's a network name of some sort and use
1024                         sys_gethostbyname */
1025                 if ((hp = sys_gethostbyname(str)) == 0) {
1026                         DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
1027                         return 0;
1028                 }
1029
1030                 if(hp->h_addr == NULL) {
1031                         DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
1032                         return 0;
1033                 }
1034                 putip((char *)&res,(char *)hp->h_addr);
1035         }
1036
1037         if (res == (uint32)-1)
1038                 return(0);
1039
1040         return(res);
1041 }
1042
1043 /*******************************************************************
1044  A convenient addition to interpret_addr().
1045 ******************************************************************/
1046
1047 struct in_addr *interpret_addr2(TALLOC_CTX *mem_ctx, const char *str)
1048 {
1049         struct in_addr *ret;
1050         uint32_t a = interpret_addr(str);
1051
1052         ret = talloc(mem_ctx, sizeof(struct in_addr));
1053         if (!ret) return NULL;
1054         ret->s_addr = a;
1055         return(ret);
1056 }
1057
1058 /*******************************************************************
1059  Check if an IP is the 0.0.0.0.
1060 ******************************************************************/
1061
1062 BOOL is_zero_ip(struct in_addr ip)
1063 {
1064         uint32 a;
1065         putip((char *)&a,(char *)&ip);
1066         return(a == 0);
1067 }
1068
1069 /*******************************************************************
1070  Set an IP to 0.0.0.0.
1071 ******************************************************************/
1072
1073 void zero_ip(struct in_addr *ip)
1074 {
1075         *ip = inet_makeaddr(0,0);
1076         return;
1077 }
1078
1079 /*******************************************************************
1080  Set an IP to 255.255.255.255
1081 ******************************************************************/
1082
1083 void one_ip(struct in_addr *ip)
1084 {
1085         *ip = inet_makeaddr(0xffffffff,0xffffffff);
1086         return;
1087 }
1088
1089 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1090 /******************************************************************
1091  Remove any mount options such as -rsize=2048,wsize=2048 etc.
1092  Based on a fix from <Thomas.Hepper@icem.de>.
1093 *******************************************************************/
1094
1095 static void strip_mount_options( pstring *str)
1096 {
1097         if (**str == '-') {
1098                 char *p = *str;
1099                 while(*p && !isspace(*p))
1100                         p++;
1101                 while(*p && isspace(*p))
1102                         p++;
1103                 if(*p) {
1104                         pstring tmp_str;
1105
1106                         pstrcpy(tmp_str, p);
1107                         pstrcpy(*str, tmp_str);
1108                 }
1109         }
1110 }
1111
1112 /*******************************************************************
1113  Patch from jkf@soton.ac.uk
1114  Split Luke's automount_server into YP lookup and string splitter
1115  so can easily implement automount_path().
1116  As we may end up doing both, cache the last YP result.
1117 *******************************************************************/
1118
1119 #ifdef WITH_NISPLUS_HOME
1120 char *automount_lookup(const char *user_name)
1121 {
1122         static fstring last_key = "";
1123         static pstring last_value = "";
1124
1125         char *nis_map = (char *)lp_nis_home_map_name();
1126
1127         char buffer[NIS_MAXATTRVAL + 1];
1128         nis_result *result;
1129         nis_object *object;
1130         entry_obj  *entry;
1131
1132         if (strcmp(user_name, last_key)) {
1133                 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
1134                 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1135
1136                 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1137                         if (result->status != NIS_SUCCESS) {
1138                                 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1139                                 fstrcpy(last_key, ""); pstrcpy(last_value, "");
1140                         } else {
1141                                 object = result->objects.objects_val;
1142                                 if (object->zo_data.zo_type == ENTRY_OBJ) {
1143                                         entry = &object->zo_data.objdata_u.en_data;
1144                                         DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1145                                         DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1146
1147                                         pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1148                                         pstring_sub(last_value, "&", user_name);
1149                                         fstrcpy(last_key, user_name);
1150                                 }
1151                         }
1152                 }
1153                 nis_freeresult(result);
1154         }
1155
1156         strip_mount_options(&last_value);
1157
1158         DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
1159         return last_value;
1160 }
1161 #else /* WITH_NISPLUS_HOME */
1162
1163 char *automount_lookup(const char *user_name)
1164 {
1165         static fstring last_key = "";
1166         static pstring last_value = "";
1167
1168         int nis_error;        /* returned by yp all functions */
1169         char *nis_result;     /* yp_match inits this */
1170         int nis_result_len;  /* and set this */
1171         char *nis_domain;     /* yp_get_default_domain inits this */
1172         char *nis_map = (char *)lp_nis_home_map_name();
1173
1174         if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1175                 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1176                 return last_value;
1177         }
1178
1179         DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1180
1181         if (!strcmp(user_name, last_key)) {
1182                 nis_result = last_value;
1183                 nis_result_len = strlen(last_value);
1184                 nis_error = 0;
1185         } else {
1186                 if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name),
1187                                 &nis_result, &nis_result_len)) == 0) {
1188                         if (!nis_error && nis_result_len >= sizeof(pstring)) {
1189                                 nis_result_len = sizeof(pstring)-1;
1190                         }
1191                         fstrcpy(last_key, user_name);
1192                         strncpy(last_value, nis_result, nis_result_len);
1193                         last_value[nis_result_len] = '\0';
1194                         strip_mount_options(&last_value);
1195
1196                 } else if(nis_error == YPERR_KEY) {
1197
1198                         /* If Key lookup fails user home server is not in nis_map
1199                                 use default information for server, and home directory */
1200                         last_value[0] = 0;
1201                         DEBUG(3, ("YP Key not found:  while looking up \"%s\" in map \"%s\"\n",
1202                                         user_name, nis_map));
1203                         DEBUG(3, ("using defaults for server and home directory\n"));
1204                 } else {
1205                         DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1206                                         yperr_string(nis_error), user_name, nis_map));
1207                 }
1208         }
1209
1210         DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
1211         return last_value;
1212 }
1213 #endif /* WITH_NISPLUS_HOME */
1214 #endif
1215
1216 /*******************************************************************
1217  Are two IPs on the same subnet?
1218 ********************************************************************/
1219
1220 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
1221 {
1222         uint32 net1,net2,nmask;
1223
1224         nmask = ntohl(mask.s_addr);
1225         net1  = ntohl(ip1.s_addr);
1226         net2  = ntohl(ip2.s_addr);
1227
1228         return((net1 & nmask) == (net2 & nmask));
1229 }
1230
1231
1232 /****************************************************************************
1233  Check if a process exists. Does this work on all unixes?
1234 ****************************************************************************/
1235
1236 BOOL process_exists(pid_t pid)
1237 {
1238         /* Doing kill with a non-positive pid causes messages to be
1239          * sent to places we don't want. */
1240         SMB_ASSERT(pid > 0);
1241         return(kill(pid,0) == 0 || errno != ESRCH);
1242 }
1243
1244 /*******************************************************************
1245  Convert a uid into a user name.
1246 ********************************************************************/
1247
1248 const char *uidtoname(uid_t uid)
1249 {
1250         static fstring name;
1251         struct passwd *pass;
1252
1253         pass = getpwuid_alloc(uid);
1254         if (pass) {
1255                 fstrcpy(name, pass->pw_name);
1256                 passwd_free(&pass);
1257         } else {
1258                 slprintf(name, sizeof(name) - 1, "%ld",(long int)uid);
1259         }
1260         return name;
1261 }
1262
1263
1264 /*******************************************************************
1265  Convert a gid into a group name.
1266 ********************************************************************/
1267
1268 char *gidtoname(gid_t gid)
1269 {
1270         static fstring name;
1271         struct group *grp;
1272
1273         grp = getgrgid(gid);
1274         if (grp)
1275                 return(grp->gr_name);
1276         slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1277         return(name);
1278 }
1279
1280 /*******************************************************************
1281  Convert a user name into a uid.
1282 ********************************************************************/
1283
1284 uid_t nametouid(const char *name)
1285 {
1286         struct passwd *pass;
1287         char *p;
1288         uid_t u;
1289
1290         pass = getpwnam_alloc(name);
1291         if (pass) {
1292                 u = pass->pw_uid;
1293                 passwd_free(&pass);
1294                 return u;
1295         }
1296
1297         u = (uid_t)strtol(name, &p, 0);
1298         if ((p != name) && (*p == '\0'))
1299                 return u;
1300
1301         return (uid_t)-1;
1302 }
1303
1304 /*******************************************************************
1305  Convert a name to a gid_t if possible. Return -1 if not a group.
1306 ********************************************************************/
1307
1308 gid_t nametogid(const char *name)
1309 {
1310         struct group *grp;
1311         char *p;
1312         gid_t g;
1313
1314         g = (gid_t)strtol(name, &p, 0);
1315         if ((p != name) && (*p == '\0'))
1316                 return g;
1317
1318         grp = sys_getgrnam(name);
1319         if (grp)
1320                 return(grp->gr_gid);
1321         return (gid_t)-1;
1322 }
1323
1324 /*******************************************************************
1325  legacy wrapper for smb_panic2()
1326 ********************************************************************/
1327 void smb_panic( const char *why )
1328 {
1329         smb_panic2( why, True );
1330 }
1331
1332 /*******************************************************************
1333  Something really nasty happened - panic !
1334 ********************************************************************/
1335
1336 #ifdef HAVE_LIBEXC_H
1337 #include <libexc.h>
1338 #endif
1339
1340 void smb_panic2(const char *why, BOOL decrement_pid_count )
1341 {
1342         char *cmd;
1343         int result;
1344 #ifdef HAVE_BACKTRACE_SYMBOLS
1345         void *backtrace_stack[BACKTRACE_STACK_SIZE];
1346         size_t backtrace_size;
1347         char **backtrace_strings;
1348 #endif
1349
1350 #ifdef DEVELOPER
1351         {
1352                 extern char *global_clobber_region_function;
1353                 extern unsigned int global_clobber_region_line;
1354
1355                 if (global_clobber_region_function) {
1356                         DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n",
1357                                          global_clobber_region_function,
1358                                          global_clobber_region_line));
1359                 }
1360         }
1361 #endif
1362
1363         /* only smbd needs to decrement the smbd counter in connections.tdb */
1364         if ( decrement_pid_count )
1365                 decrement_smbd_process_count();
1366
1367         cmd = lp_panic_action();
1368         if (cmd && *cmd) {
1369                 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1370                 result = system(cmd);
1371
1372                 if (result == -1)
1373                         DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1374                                           strerror(errno)));
1375                 else
1376                         DEBUG(0, ("smb_panic(): action returned status %d\n",
1377                                           WEXITSTATUS(result)));
1378         }
1379         DEBUG(0,("PANIC: %s\n", why));
1380
1381 #ifdef HAVE_BACKTRACE_SYMBOLS
1382         /* get the backtrace (stack frames) */
1383         backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1384         backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1385
1386         DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1387                   (unsigned long)backtrace_size));
1388
1389         if (backtrace_strings) {
1390                 int i;
1391
1392                 for (i = 0; i < backtrace_size; i++)
1393                         DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1394
1395                 /* Leak the backtrace_strings, rather than risk what free() might do */
1396         }
1397
1398 #elif HAVE_LIBEXC
1399
1400 #define NAMESIZE 32 /* Arbitrary */
1401
1402         /* The IRIX libexc library provides an API for unwinding the stack. See
1403          * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1404          * since we are about to abort anyway, it hardly matters.
1405          *
1406          * Note that if we paniced due to a SIGSEGV or SIGBUS (or similar) this
1407          * will fail with a nasty message upon failing to open the /proc entry.
1408          */
1409         {
1410                 __uint64_t      addrs[BACKTRACE_STACK_SIZE];
1411                 char *          names[BACKTRACE_STACK_SIZE];
1412                 char            namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1413
1414                 int             i;
1415                 int             levels;
1416
1417                 ZERO_ARRAY(addrs);
1418                 ZERO_ARRAY(names);
1419                 ZERO_ARRAY(namebuf);
1420
1421                 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1422                         names[i] = namebuf + (i * NAMESIZE);
1423                 }
1424
1425                 levels = trace_back_stack(0, addrs, names,
1426                                 BACKTRACE_STACK_SIZE, NAMESIZE);
1427
1428                 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1429                 for (i = 0; i < levels; i++) {
1430                         DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1431                 }
1432      }
1433 #undef NAMESIZE
1434 #endif
1435
1436 #ifdef SIGABRT
1437         CatchSignal(SIGABRT,SIGNAL_CAST SIG_DFL);
1438 #endif
1439         abort();
1440 }
1441
1442
1443 /*******************************************************************
1444  Utility function used to decide if the last component
1445  of a path matches a (possibly wildcarded) entry in a namelist.
1446 ********************************************************************/
1447
1448 BOOL is_in_path(const char *name, name_compare_entry *namelist, BOOL case_sensitive)
1449 {
1450         pstring last_component;
1451         char *p;
1452
1453         DEBUG(8, ("is_in_path: %s\n", name));
1454
1455         /* if we have no list it's obviously not in the path */
1456         if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1457                 DEBUG(8,("is_in_path: no name list.\n"));
1458                 return False;
1459         }
1460
1461         /* Get the last component of the unix name. */
1462         p = strrchr_m(name, '/');
1463         strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1464         last_component[sizeof(last_component)-1] = '\0';
1465
1466         for(; namelist->name != NULL; namelist++) {
1467                 if(namelist->is_wild) {
1468                         if (mask_match_x(last_component, namelist->name, case_sensitive)) {
1469                                 DEBUG(8,("is_in_path: mask match succeeded\n"));
1470                                 return True;
1471                         }
1472                 } else {
1473                         if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1474                                                 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1475                                 DEBUG(8,("is_in_path: match succeeded\n"));
1476                                 return True;
1477                         }
1478                 }
1479         }
1480         DEBUG(8,("is_in_path: match not found\n"));
1481
1482         return False;
1483 }
1484
1485 /*******************************************************************
1486  Strip a '/' separated list into an array of
1487  name_compare_enties structures suitable for
1488  passing to is_in_path(). We do this for
1489  speed so we can pre-parse all the names in the list
1490  and don't do it for each call to is_in_path().
1491  namelist is modified here and is assumed to be
1492  a copy owned by the caller.
1493  We also check if the entry contains a wildcard to
1494  remove a potentially expensive call to mask_match
1495  if possible.
1496 ********************************************************************/
1497
1498 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1499 {
1500         char *name_end;
1501         char *nameptr = namelist;
1502         int num_entries = 0;
1503         int i;
1504
1505         (*ppname_array) = NULL;
1506
1507         if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1508                 return;
1509
1510         /* We need to make two passes over the string. The
1511                 first to count the number of elements, the second
1512                 to split it.
1513         */
1514
1515         while(*nameptr) {
1516                 if ( *nameptr == '/' ) {
1517                         /* cope with multiple (useless) /s) */
1518                         nameptr++;
1519                         continue;
1520                 }
1521                 /* find the next / */
1522                 name_end = strchr_m(nameptr, '/');
1523
1524                 /* oops - the last check for a / didn't find one. */
1525                 if (name_end == NULL)
1526                         break;
1527
1528                 /* next segment please */
1529                 nameptr = name_end + 1;
1530                 num_entries++;
1531         }
1532
1533         if(num_entries == 0)
1534                 return;
1535
1536         if(( (*ppname_array) = (name_compare_entry *)malloc(
1537                                         (num_entries + 1) * sizeof(name_compare_entry))) == NULL) {
1538                 DEBUG(0,("set_namearray: malloc fail\n"));
1539                 return;
1540         }
1541
1542         /* Now copy out the names */
1543         nameptr = namelist;
1544         i = 0;
1545         while(*nameptr) {
1546                 if ( *nameptr == '/' ) {
1547                         /* cope with multiple (useless) /s) */
1548                         nameptr++;
1549                         continue;
1550                 }
1551                 /* find the next / */
1552                 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1553                         *name_end = 0;
1554
1555                 /* oops - the last check for a / didn't find one. */
1556                 if(name_end == NULL)
1557                         break;
1558
1559                 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1560                 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL) {
1561                         DEBUG(0,("set_namearray: malloc fail (1)\n"));
1562                         return;
1563                 }
1564
1565                 /* next segment please */
1566                 nameptr = name_end + 1;
1567                 i++;
1568         }
1569
1570         (*ppname_array)[i].name = NULL;
1571
1572         return;
1573 }
1574
1575 /****************************************************************************
1576  Routine to free a namearray.
1577 ****************************************************************************/
1578
1579 void free_namearray(name_compare_entry *name_array)
1580 {
1581         int i;
1582
1583         if(name_array == NULL)
1584                 return;
1585
1586         for(i=0; name_array[i].name!=NULL; i++)
1587                 SAFE_FREE(name_array[i].name);
1588         SAFE_FREE(name_array);
1589 }
1590
1591 /****************************************************************************
1592  Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1593  is dealt with in posix.c
1594 ****************************************************************************/
1595
1596 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1597 {
1598         SMB_STRUCT_FLOCK lock;
1599         int ret;
1600
1601         DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1602
1603         lock.l_type = type;
1604         lock.l_whence = SEEK_SET;
1605         lock.l_start = offset;
1606         lock.l_len = count;
1607         lock.l_pid = 0;
1608
1609         ret = sys_fcntl_ptr(fd,op,&lock);
1610
1611         if (ret == -1 && errno != 0)
1612                 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1613
1614         /* a lock query */
1615         if (op == SMB_F_GETLK) {
1616                 if ((ret != -1) &&
1617                                 (lock.l_type != F_UNLCK) &&
1618                                 (lock.l_pid != 0) &&
1619                                 (lock.l_pid != sys_getpid())) {
1620                         DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1621                         return(True);
1622                 }
1623
1624                 /* it must be not locked or locked by me */
1625                 return(False);
1626         }
1627
1628         /* a lock set or unset */
1629         if (ret == -1) {
1630                 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1631                         (double)offset,(double)count,op,type,strerror(errno)));
1632                 return(False);
1633         }
1634
1635         /* everything went OK */
1636         DEBUG(8,("fcntl_lock: Lock call successful\n"));
1637
1638         return(True);
1639 }
1640
1641 /*******************************************************************
1642  Is the name specified one of my netbios names.
1643  Returns true if it is equal, false otherwise.
1644 ********************************************************************/
1645
1646 BOOL is_myname(const char *s)
1647 {
1648         int n;
1649         BOOL ret = False;
1650
1651         for (n=0; my_netbios_names(n); n++) {
1652                 if (strequal(my_netbios_names(n), s)) {
1653                         ret=True;
1654                         break;
1655                 }
1656         }
1657         DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1658         return(ret);
1659 }
1660
1661 BOOL is_myname_or_ipaddr(const char *s)
1662 {
1663         /* optimize for the common case */
1664         if (strequal(s, global_myname()))
1665                 return True;
1666
1667         /* maybe its an IP address? */
1668         if (is_ipaddress(s)) {
1669                 struct iface_struct nics[MAX_INTERFACES];
1670                 int i, n;
1671                 uint32 ip;
1672
1673                 ip = interpret_addr(s);
1674                 if ((ip==0) || (ip==0xffffffff))
1675                         return False;
1676
1677                 n = get_interfaces(nics, MAX_INTERFACES);
1678                 for (i=0; i<n; i++) {
1679                         if (ip == nics[i].ip.s_addr)
1680                                 return True;
1681                 }
1682         }
1683
1684         /* check for an alias */
1685         if (is_myname(s))
1686                 return True;
1687
1688         /* no match */
1689         return False;
1690 }
1691
1692 /*******************************************************************
1693  Is the name specified our workgroup/domain.
1694  Returns true if it is equal, false otherwise.
1695 ********************************************************************/
1696
1697 BOOL is_myworkgroup(const char *s)
1698 {
1699         BOOL ret = False;
1700
1701         if (strequal(s, lp_workgroup())) {
1702                 ret=True;
1703         }
1704
1705         DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1706         return(ret);
1707 }
1708
1709 /*******************************************************************
1710  we distinguish between 2K and XP by the "Native Lan Manager" string
1711    WinXP => "Windows 2002 5.1"
1712    Win2k => "Windows 2000 5.0"
1713    NT4   => "Windows NT 4.0"
1714    Win9x => "Windows 4.0"
1715  Windows 2003 doesn't set the native lan manager string but
1716  they do set the domain to "Windows 2003 5.2" (probably a bug).
1717 ********************************************************************/
1718
1719 void ra_lanman_string( const char *native_lanman )
1720 {
1721         if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1722                 set_remote_arch( RA_WINXP );
1723         else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1724                 set_remote_arch( RA_WIN2K3 );
1725 }
1726
1727 /*******************************************************************
1728  Set the horrid remote_arch string based on an enum.
1729 ********************************************************************/
1730
1731 void set_remote_arch(enum remote_arch_types type)
1732 {
1733         extern fstring remote_arch;
1734         ra_type = type;
1735         switch( type ) {
1736         case RA_WFWG:
1737                 fstrcpy(remote_arch, "WfWg");
1738                 break;
1739         case RA_OS2:
1740                 fstrcpy(remote_arch, "OS2");
1741                 break;
1742         case RA_WIN95:
1743                 fstrcpy(remote_arch, "Win95");
1744                 break;
1745         case RA_WINNT:
1746                 fstrcpy(remote_arch, "WinNT");
1747                 break;
1748         case RA_WIN2K:
1749                 fstrcpy(remote_arch, "Win2K");
1750                 break;
1751         case RA_WINXP:
1752                 fstrcpy(remote_arch, "WinXP");
1753                 break;
1754         case RA_WIN2K3:
1755                 fstrcpy(remote_arch, "Win2K3");
1756                 break;
1757         case RA_SAMBA:
1758                 fstrcpy(remote_arch,"Samba");
1759                 break;
1760         case RA_CIFSFS:
1761                 fstrcpy(remote_arch,"CIFSFS");
1762                 break;
1763         default:
1764                 ra_type = RA_UNKNOWN;
1765                 fstrcpy(remote_arch, "UNKNOWN");
1766                 break;
1767         }
1768
1769         DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n", remote_arch));
1770 }
1771
1772 /*******************************************************************
1773  Get the remote_arch type.
1774 ********************************************************************/
1775
1776 enum remote_arch_types get_remote_arch(void)
1777 {
1778         return ra_type;
1779 }
1780
1781 void print_asc(int level, const unsigned char *buf,int len)
1782 {
1783         int i;
1784         for (i=0;i<len;i++)
1785                 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1786 }
1787
1788 void dump_data(int level, const char *buf1,int len)
1789 {
1790         const unsigned char *buf = (const unsigned char *)buf1;
1791         int i=0;
1792         if (len<=0) return;
1793
1794         if (!DEBUGLVL(level)) return;
1795
1796         DEBUGADD(level,("[%03X] ",i));
1797         for (i=0;i<len;) {
1798                 DEBUGADD(level,("%02X ",(int)buf[i]));
1799                 i++;
1800                 if (i%8 == 0) DEBUGADD(level,(" "));
1801                 if (i%16 == 0) {
1802                         print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
1803                         print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
1804                         if (i<len) DEBUGADD(level,("[%03X] ",i));
1805                 }
1806         }
1807         if (i%16) {
1808                 int n;
1809                 n = 16 - (i%16);
1810                 DEBUGADD(level,(" "));
1811                 if (n>8) DEBUGADD(level,(" "));
1812                 while (n--) DEBUGADD(level,("   "));
1813                 n = MIN(8,i%16);
1814                 print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
1815                 n = (i%16) - n;
1816                 if (n>0) print_asc(level,&buf[i-n],n);
1817                 DEBUGADD(level,("\n"));
1818         }
1819 }
1820
1821 void dump_data_pw(const char *msg, const uchar * data, size_t len)
1822 {
1823 #ifdef DEBUG_PASSWORD
1824         DEBUG(11, ("%s", msg));
1825         if (data != NULL && len > 0)
1826         {
1827                 dump_data(11, data, len);
1828         }
1829 #endif
1830 }
1831
1832 char *tab_depth(int depth)
1833 {
1834         static pstring spaces;
1835         memset(spaces, ' ', depth * 4);
1836         spaces[depth * 4] = 0;
1837         return spaces;
1838 }
1839
1840 /*****************************************************************************
1841  Provide a checksum on a string
1842
1843  Input:  s - the null-terminated character string for which the checksum
1844              will be calculated.
1845
1846   Output: The checksum value calculated for s.
1847 *****************************************************************************/
1848
1849 int str_checksum(const char *s)
1850 {
1851         int res = 0;
1852         int c;
1853         int i=0;
1854
1855         while(*s) {
1856                 c = *s;
1857                 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1858                 s++;
1859                 i++;
1860         }
1861         return(res);
1862 }
1863
1864 /*****************************************************************
1865  Zero a memory area then free it. Used to catch bugs faster.
1866 *****************************************************************/
1867
1868 void zero_free(void *p, size_t size)
1869 {
1870         memset(p, 0, size);
1871         SAFE_FREE(p);
1872 }
1873
1874 /*****************************************************************
1875  Set our open file limit to a requested max and return the limit.
1876 *****************************************************************/
1877
1878 int set_maxfiles(int requested_max)
1879 {
1880 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1881         struct rlimit rlp;
1882         int saved_current_limit;
1883
1884         if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1885                 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1886                         strerror(errno) ));
1887                 /* just guess... */
1888                 return requested_max;
1889         }
1890
1891         /*
1892          * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1893          * account for the extra fd we need
1894          * as well as the log files and standard
1895          * handles etc. Save the limit we want to set in case
1896          * we are running on an OS that doesn't support this limit (AIX)
1897          * which always returns RLIM_INFINITY for rlp.rlim_max.
1898          */
1899
1900         /* Try raising the hard (max) limit to the requested amount. */
1901
1902 #if defined(RLIM_INFINITY)
1903         if (rlp.rlim_max != RLIM_INFINITY) {
1904                 int orig_max = rlp.rlim_max;
1905
1906                 if ( rlp.rlim_max < requested_max )
1907                         rlp.rlim_max = requested_max;
1908
1909                 /* This failing is not an error - many systems (Linux) don't
1910                         support our default request of 10,000 open files. JRA. */
1911
1912                 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1913                         DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1914                                 (int)rlp.rlim_max, strerror(errno) ));
1915
1916                         /* Set failed - restore original value from get. */
1917                         rlp.rlim_max = orig_max;
1918                 }
1919         }
1920 #endif
1921
1922         /* Now try setting the soft (current) limit. */
1923
1924         saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1925
1926         if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1927                 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1928                         (int)rlp.rlim_cur, strerror(errno) ));
1929                 /* just guess... */
1930                 return saved_current_limit;
1931         }
1932
1933         if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1934                 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1935                         strerror(errno) ));
1936                 /* just guess... */
1937                 return saved_current_limit;
1938     }
1939
1940 #if defined(RLIM_INFINITY)
1941         if(rlp.rlim_cur == RLIM_INFINITY)
1942                 return saved_current_limit;
1943 #endif
1944
1945         if((int)rlp.rlim_cur > saved_current_limit)
1946                 return saved_current_limit;
1947
1948         return rlp.rlim_cur;
1949 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1950         /*
1951          * No way to know - just guess...
1952          */
1953         return requested_max;
1954 #endif
1955 }
1956
1957 /*****************************************************************
1958  Splits out the start of the key (HKLM or HKU) and the rest of the key.
1959 *****************************************************************/
1960
1961 BOOL reg_split_key(const char *full_keyname, uint32 *reg_type, char *key_name)
1962 {
1963         pstring tmp;
1964
1965         if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1966                 return False;
1967
1968         (*reg_type) = 0;
1969
1970         DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1971
1972         if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1973                 (*reg_type) = HKEY_LOCAL_MACHINE;
1974         else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1975                 (*reg_type) = HKEY_USERS;
1976         else {
1977                 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1978                 return False;
1979         }
1980
1981         if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
1982                 fstrcpy(key_name, tmp);
1983         else
1984                 key_name[0] = 0;
1985
1986         DEBUG(10, ("reg_split_key: name %s\n", key_name));
1987
1988         return True;
1989 }
1990
1991 /*****************************************************************
1992  Possibly replace mkstemp if it is broken.
1993 *****************************************************************/
1994
1995 int smb_mkstemp(char *template)
1996 {
1997 #if HAVE_SECURE_MKSTEMP
1998         return mkstemp(template);
1999 #else
2000         /* have a reasonable go at emulating it. Hope that
2001            the system mktemp() isn't completly hopeless */
2002         char *p = mktemp(template);
2003         if (!p)
2004                 return -1;
2005         return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
2006 #endif
2007 }
2008
2009 /*****************************************************************
2010  malloc that aborts with smb_panic on fail or zero size.
2011  *****************************************************************/
2012
2013 void *smb_xmalloc(size_t size)
2014 {
2015         void *p;
2016         if (size == 0)
2017                 smb_panic("smb_xmalloc: called with zero size.\n");
2018         if ((p = malloc(size)) == NULL) {
2019                 DEBUG(0, ("smb_xmalloc() failed to allocate %lu bytes\n", (unsigned long)size));
2020                 smb_panic("smb_xmalloc: malloc fail.\n");
2021         }
2022         return p;
2023 }
2024
2025 /**
2026  Memdup with smb_panic on fail.
2027 **/
2028
2029 void *smb_xmemdup(const void *p, size_t size)
2030 {
2031         void *p2;
2032         p2 = smb_xmalloc(size);
2033         memcpy(p2, p, size);
2034         return p2;
2035 }
2036
2037 /**
2038  strdup that aborts on malloc fail.
2039 **/
2040
2041 char *smb_xstrdup(const char *s)
2042 {
2043         char *s1 = strdup(s);
2044         if (!s1)
2045                 smb_panic("smb_xstrdup: malloc fail\n");
2046         return s1;
2047 }
2048
2049 /**
2050  strndup that aborts on malloc fail.
2051 **/
2052
2053 char *smb_xstrndup(const char *s, size_t n)
2054 {
2055         char *s1 = strndup(s, n);
2056         if (!s1)
2057                 smb_panic("smb_xstrndup: malloc fail\n");
2058         return s1;
2059 }
2060
2061 /*
2062   vasprintf that aborts on malloc fail
2063 */
2064
2065  int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2066 {
2067         int n;
2068         va_list ap2;
2069
2070         VA_COPY(ap2, ap);
2071
2072         n = vasprintf(ptr, format, ap2);
2073         if (n == -1 || ! *ptr)
2074                 smb_panic("smb_xvasprintf: out of memory");
2075         return n;
2076 }
2077
2078 /*****************************************************************
2079  Like strdup but for memory.
2080 *****************************************************************/
2081
2082 void *memdup(const void *p, size_t size)
2083 {
2084         void *p2;
2085         if (size == 0)
2086                 return NULL;
2087         p2 = malloc(size);
2088         if (!p2)
2089                 return NULL;
2090         memcpy(p2, p, size);
2091         return p2;
2092 }
2093
2094 /*****************************************************************
2095  Get local hostname and cache result.
2096 *****************************************************************/
2097
2098 char *myhostname(void)
2099 {
2100         static pstring ret;
2101         if (ret[0] == 0)
2102                 get_myname(ret);
2103         return ret;
2104 }
2105
2106 /*****************************************************************
2107  A useful function for returning a path in the Samba lock directory.
2108 *****************************************************************/
2109
2110 char *lock_path(const char *name)
2111 {
2112         static pstring fname;
2113
2114         pstrcpy(fname,lp_lockdir());
2115         trim_char(fname,'\0','/');
2116
2117         if (!directory_exist(fname,NULL))
2118                 mkdir(fname,0755);
2119
2120         pstrcat(fname,"/");
2121         pstrcat(fname,name);
2122
2123         return fname;
2124 }
2125
2126 /*****************************************************************
2127  A useful function for returning a path in the Samba pid directory.
2128 *****************************************************************/
2129
2130 char *pid_path(const char *name)
2131 {
2132         static pstring fname;
2133
2134         pstrcpy(fname,lp_piddir());
2135         trim_char(fname,'\0','/');
2136
2137         if (!directory_exist(fname,NULL))
2138                 mkdir(fname,0755);
2139
2140         pstrcat(fname,"/");
2141         pstrcat(fname,name);
2142
2143         return fname;
2144 }
2145
2146 /**
2147  * @brief Returns an absolute path to a file in the Samba lib directory.
2148  *
2149  * @param name File to find, relative to LIBDIR.
2150  *
2151  * @retval Pointer to a static #pstring containing the full path.
2152  **/
2153
2154 char *lib_path(const char *name)
2155 {
2156         static pstring fname;
2157         fstr_sprintf(fname, "%s/%s", dyn_LIBDIR, name);
2158         return fname;
2159 }
2160
2161 /**
2162  * @brief Returns the platform specific shared library extension.
2163  *
2164  * @retval Pointer to a static #fstring containing the extension.
2165  **/
2166
2167 const char *shlib_ext(void)
2168 {
2169   return dyn_SHLIBEXT;
2170 }
2171
2172 /*******************************************************************
2173  Given a filename - get its directory name
2174  NB: Returned in static storage.  Caveats:
2175  o  Not safe in thread environment.
2176  o  Caller must not free.
2177  o  If caller wishes to preserve, they should copy.
2178 ********************************************************************/
2179
2180 char *parent_dirname(const char *path)
2181 {
2182         static pstring dirpath;
2183         char *p;
2184
2185         if (!path)
2186                 return(NULL);
2187
2188         pstrcpy(dirpath, path);
2189         p = strrchr_m(dirpath, '/');  /* Find final '/', if any */
2190         if (!p) {
2191                 pstrcpy(dirpath, ".");    /* No final "/", so dir is "." */
2192         } else {
2193                 if (p == dirpath)
2194                         ++p;    /* For root "/", leave "/" in place */
2195                 *p = '\0';
2196         }
2197         return dirpath;
2198 }
2199
2200
2201 /*******************************************************************
2202  Determine if a pattern contains any Microsoft wildcard characters.
2203 *******************************************************************/
2204
2205 BOOL ms_has_wild(const char *s)
2206 {
2207         char c;
2208         while ((c = *s++)) {
2209                 switch (c) {
2210                 case '*':
2211                 case '?':
2212                 case '<':
2213                 case '>':
2214                 case '"':
2215                         return True;
2216                 }
2217         }
2218         return False;
2219 }
2220
2221 BOOL ms_has_wild_w(const smb_ucs2_t *s)
2222 {
2223         smb_ucs2_t c;
2224         if (!s) return False;
2225         while ((c = *s++)) {
2226                 switch (c) {
2227                 case UCS2_CHAR('*'):
2228                 case UCS2_CHAR('?'):
2229                 case UCS2_CHAR('<'):
2230                 case UCS2_CHAR('>'):
2231                 case UCS2_CHAR('"'):
2232                         return True;
2233                 }
2234         }
2235         return False;
2236 }
2237
2238 /*******************************************************************
2239  A wrapper that handles case sensitivity and the special handling
2240  of the ".." name.
2241 *******************************************************************/
2242
2243 BOOL mask_match_x(const char *string, char *pattern, BOOL is_case_sensitive)
2244 {
2245         if (strcmp(string,"..") == 0)
2246                 string = ".";
2247         if (strcmp(pattern,".") == 0)
2248                 return False;
2249
2250                 return ms_fnmatch_x(pattern, string, Protocol, is_case_sensitive) == 0;
2251 }
2252
2253 /*******************************************************************
2254  A wrapper that handles a list of patters and calls mask_match()
2255  on each.  Returns True if any of the patterns match.
2256 *******************************************************************/
2257
2258 BOOL mask_match_list(const char *string, char **list, int listLen, BOOL is_case_sensitive)
2259 {
2260        while (listLen-- > 0) {
2261                if (mask_match_x(string, *list++, is_case_sensitive))
2262                        return True;
2263        }
2264        return False;
2265 }
2266
2267 /*********************************************************
2268  Recursive routine that is called by unix_wild_match.
2269 *********************************************************/
2270
2271 static BOOL unix_do_match(const char *regexp, const char *str)
2272 {
2273         const char *p;
2274
2275         for( p = regexp; *p && *str; ) {
2276
2277                 switch(*p) {
2278                         case '?':
2279                                 str++;
2280                                 p++;
2281                                 break;
2282
2283                         case '*':
2284
2285                                 /*
2286                                  * Look for a character matching
2287                                  * the one after the '*'.
2288                                  */
2289                                 p++;
2290                                 if(!*p)
2291                                         return True; /* Automatic match */
2292                                 while(*str) {
2293
2294                                         while(*str && (*p != *str))
2295                                                 str++;
2296
2297                                         /*
2298                                          * Patch from weidel@multichart.de. In the case of the regexp
2299                                          * '*XX*' we want to ensure there are at least 2 'X' characters
2300                                          * in the string after the '*' for a match to be made.
2301                                          */
2302
2303                                         {
2304                                                 int matchcount=0;
2305
2306                                                 /*
2307                                                  * Eat all the characters that match, but count how many there were.
2308                                                  */
2309
2310                                                 while(*str && (*p == *str)) {
2311                                                         str++;
2312                                                         matchcount++;
2313                                                 }
2314
2315                                                 /*
2316                                                  * Now check that if the regexp had n identical characters that
2317                                                  * matchcount had at least that many matches.
2318                                                  */
2319
2320                                                 while ( *(p+1) && (*(p+1) == *p)) {
2321                                                         p++;
2322                                                         matchcount--;
2323                                                 }
2324
2325                                                 if ( matchcount <= 0 )
2326                                                         return False;
2327                                         }
2328
2329                                         str--; /* We've eaten the match char after the '*' */
2330
2331                                         if(unix_do_match(p, str))
2332                                                 return True;
2333
2334                                         if(!*str)
2335                                                 return False;
2336                                         else
2337                                                 str++;
2338                                 }
2339                                 return False;
2340
2341                         default:
2342                                 if(*str != *p)
2343                                         return False;
2344                                 str++;
2345                                 p++;
2346                                 break;
2347                 }
2348         }
2349
2350         if(!*p && !*str)
2351                 return True;
2352
2353         if (!*p && str[0] == '.' && str[1] == 0)
2354                 return(True);
2355
2356         if (!*str && *p == '?') {
2357                 while (*p == '?')
2358                         p++;
2359                 return(!*p);
2360         }
2361
2362         if(!*str && (*p == '*' && p[1] == '\0'))
2363                 return True;
2364
2365         return False;
2366 }
2367
2368 /*******************************************************************
2369  Simple case insensitive interface to a UNIX wildcard matcher.
2370 *******************************************************************/
2371
2372 BOOL unix_wild_match(const char *pattern, const char *string)
2373 {
2374         pstring p2, s2;
2375         char *p;
2376
2377         pstrcpy(p2, pattern);
2378         pstrcpy(s2, string);
2379         strlower_m(p2);
2380         strlower_m(s2);
2381
2382         /* Remove any *? and ** from the pattern as they are meaningless */
2383         for(p = p2; *p; p++)
2384                 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
2385                         pstrcpy( &p[1], &p[2]);
2386
2387         if (strequal(p2,"*"))
2388                 return True;
2389
2390         return unix_do_match(p2, s2) == 0;
2391 }
2392
2393 /**********************************************************************
2394  Converts a name to a fully qalified domain name.
2395 ***********************************************************************/
2396
2397 void name_to_fqdn(fstring fqdn, const char *name)
2398 {
2399         struct hostent *hp = sys_gethostbyname(name);
2400         if ( hp && hp->h_name && *hp->h_name ) {
2401                 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, hp->h_name));
2402                 fstrcpy(fqdn,hp->h_name);
2403         } else {
2404                 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2405                 fstrcpy(fqdn, name);
2406         }
2407 }
2408
2409 #ifdef __INSURE__
2410
2411 /*******************************************************************
2412 This routine is a trick to immediately catch errors when debugging
2413 with insure. A xterm with a gdb is popped up when insure catches
2414 a error. It is Linux specific.
2415 ********************************************************************/
2416
2417 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
2418 {
2419         static int (*fn)();
2420         int ret;
2421         char pidstr[10];
2422         /* you can get /usr/bin/backtrace from
2423            http://samba.org/ftp/unpacked/junkcode/backtrace */
2424         pstring cmd = "/usr/bin/backtrace %d";
2425
2426         slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
2427         pstring_sub(cmd, "%d", pidstr);
2428
2429         if (!fn) {
2430                 static void *h;
2431                 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
2432                 fn = dlsym(h, "_Insure_trap_error");
2433
2434                 if (!h || h == _Insure_trap_error) {
2435                         h = dlopen("/usr/local/parasoft/lib.linux2/libinsure.so", RTLD_LAZY);
2436                         fn = dlsym(h, "_Insure_trap_error");
2437                 }
2438         }
2439
2440         ret = fn(a1, a2, a3, a4, a5, a6);
2441
2442         system(cmd);
2443
2444         return ret;
2445 }
2446 #endif