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
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24
  25 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
  26 #ifdef WITH_NISPLUS_HOME
  27 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
  28 /*
  29  * The following lines are needed due to buggy include files
  30  * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
  31  * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
  32  * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
  33  * an enum in /usr/include/rpcsvc/nis.h.
  34  */
  35
  36 #if defined(GROUP)
  37 #undef GROUP
  38 #endif
  39
  40 #if defined(GROUP_OBJ)
  41 #undef GROUP_OBJ
  42 #endif
  43
  44 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
  45
  46 #include <rpcsvc/nis.h>
  47
  48 #else /* !WITH_NISPLUS_HOME */
  49
  50 #include "rpcsvc/ypclnt.h"
  51
  52 #endif /* WITH_NISPLUS_HOME */
  53 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
  54
  55 int Protocol = PROTOCOL_COREPLUS;
  56
  57 /* a default finfo structure to ensure all fields are sensible */
  58 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
  59
  60 /* this is used by the chaining code */
  61 int chain_size = 0;
  62
  63 int trans_num = 0;
  64
  65 /*
  66    case handling on filenames
  67 */
  68 int case_default = CASE_LOWER;
  69
  70 /* the following control case operations - they are put here so the
  71    client can link easily */
  72 BOOL case_sensitive;
  73 BOOL case_preserve;
  74 BOOL use_mangled_map = False;
  75 BOOL short_case_preserve;
  76 BOOL case_mangle;
  77
  78 static enum remote_arch_types ra_type = RA_UNKNOWN;
  79 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
  80
  81 /***********************************************************************
  82  Definitions for all names.
  83 ***********************************************************************/
  84
  85 static char *smb_myname;
  86 static char *smb_myworkgroup;
  87 static char *smb_scope;
  88 static int smb_num_netbios_names;
  89 static char **smb_my_netbios_names;
  90
  91 /***********************************************************************
  92  Allocate and set myname. Ensure upper case.
  93 ***********************************************************************/
  94
  95 BOOL set_global_myname(const char *myname)
  96 {
  97         SAFE_FREE(smb_myname);
  98         smb_myname = strdup(myname);
  99         if (!smb_myname)
 100                 return False;
 101         strupper(smb_myname);
 102         return True;
 103 }
 104
 105 const char *global_myname(void)
 106 {
 107         return smb_myname;
 108 }
 109
 110 /***********************************************************************
 111  Allocate and set myworkgroup. Ensure upper case.
 112 ***********************************************************************/
 113
 114 BOOL set_global_myworkgroup(const char *myworkgroup)
 115 {
 116         SAFE_FREE(smb_myworkgroup);
 117         smb_myworkgroup = strdup(myworkgroup);
 118         if (!smb_myworkgroup)
 119                 return False;
 120         strupper(smb_myworkgroup);
 121         return True;
 122 }
 123
 124 const char *lp_workgroup(void)
 125 {
 126         return smb_myworkgroup;
 127 }
 128
 129 /***********************************************************************
 130  Allocate and set scope. Ensure upper case.
 131 ***********************************************************************/
 132
 133 BOOL set_global_scope(const char *scope)
 134 {
 135         SAFE_FREE(smb_scope);
 136         smb_scope = strdup(scope);
 137         if (!smb_scope)
 138                 return False;
 139         strupper(smb_scope);
 140         return True;
 141 }
 142
 143 /*********************************************************************
 144  Ensure scope is never null string.
 145 *********************************************************************/
 146
 147 const char *global_scope(void)
 148 {
 149         if (!smb_scope)
 150                 set_global_scope("");
 151         return smb_scope;
 152 }
 153
 154 static void free_netbios_names_array(void)
 155 {
 156         int i;
 157
 158         for (i = 0; i < smb_num_netbios_names; i++)
 159                 SAFE_FREE(smb_my_netbios_names[i]);
 160
 161         SAFE_FREE(smb_my_netbios_names);
 162         smb_num_netbios_names = 0;
 163 }
 164
 165 static BOOL allocate_my_netbios_names_array(size_t number)
 166 {
 167         free_netbios_names_array();
 168
 169         smb_num_netbios_names = number + 1;
 170         smb_my_netbios_names = (char **)malloc( sizeof(char *) * smb_num_netbios_names );
 171
 172         if (!smb_my_netbios_names)
 173                 return False;
 174
 175         memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
 176         return True;
 177 }
 178
 179 static BOOL set_my_netbios_names(const char *name, int i)
 180 {
 181         SAFE_FREE(smb_my_netbios_names[i]);
 182
 183         smb_my_netbios_names[i] = strdup(name);
 184         if (!smb_my_netbios_names[i])
 185                 return False;
 186         strupper(smb_my_netbios_names[i]);
 187         return True;
 188 }
 189
 190 const char *my_netbios_names(int i)
 191 {
 192         return smb_my_netbios_names[i];
 193 }
 194
 195 BOOL set_netbios_aliases(const char **str_array)
 196 {
 197         size_t namecount;
 198
 199         /* Work out the max number of netbios aliases that we have */
 200         for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
 201                 ;
 202
 203         if ( global_myname() && *global_myname())
 204                 namecount++;
 205
 206         /* Allocate space for the netbios aliases */
 207         if (!allocate_my_netbios_names_array(namecount))
 208                 return False;
 209
 210         /* Use the global_myname string first */
 211         namecount=0;
 212         if ( global_myname() && *global_myname()) {
 213                 set_my_netbios_names( global_myname(), namecount );
 214                 namecount++;
 215         }
 216
 217         if (str_array) {
 218                 size_t i;
 219                 for ( i = 0; str_array[i] != NULL; i++) {
 220                         size_t n;
 221                         BOOL duplicate = False;
 222
 223                         /* Look for duplicates */
 224                         for( n=0; n<namecount; n++ ) {
 225                                 if( strequal( str_array[i], my_netbios_names(n) ) ) {
 226                                         duplicate = True;
 227                                         break;
 228                                 }
 229                         }
 230                         if (!duplicate) {
 231                                 if (!set_my_netbios_names(str_array[i], namecount))
 232                                         return False;
 233                                 namecount++;
 234                         }
 235                 }
 236         }
 237         return True;
 238 }
 239
 240 /****************************************************************************
 241   Common name initialization code.
 242 ****************************************************************************/
 243
 244 BOOL init_names(void)
 245 {
 246         extern fstring local_machine;
 247         char *p;
 248         int n;
 249
 250         if (global_myname() == NULL || *global_myname() == '\0') {
 251                 fstring name;
 252
 253                 fstrcpy( name, myhostname() );
 254                 p = strchr( name, '.' );
 255                 if (p)
 256                         *p = 0;
 257                 if (!set_global_myname(name)) {
 258                         DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
 259                         return False;
 260                 }
 261         }
 262
 263         if (!set_netbios_aliases(lp_netbios_aliases())) {
 264                 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
 265                 return False;
 266         }
 267
 268         fstrcpy( local_machine, global_myname() );
 269         trim_string( local_machine, " ", " " );
 270         p = strchr( local_machine, ' ' );
 271         if (p)
 272                 *p = 0;
 273         strlower( local_machine );
 274
 275         DEBUG( 5, ("Netbios name list:-\n") );
 276         for( n=0; my_netbios_names(n); n++ )
 277                 DEBUGADD( 5, ( "my_netbios_names[%d]=\"%s\"\n", n, my_netbios_names(n) ) );
 278
 279         return( True );
 280 }
 281
 282 /**************************************************************************n
 283  Find a suitable temporary directory. The result should be copied immediately
 284  as it may be overwritten by a subsequent call.
 285 ****************************************************************************/
 286
 287 const char *tmpdir(void)
 288 {
 289         char *p;
 290         if ((p = getenv("TMPDIR")))
 291                 return p;
 292         return "/tmp";
 293 }
 294
 295 /****************************************************************************
 296  Determine whether we are in the specified group.
 297 ****************************************************************************/
 298
 299 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, const gid_t *groups)
 300 {
 301         int i;
 302
 303         if (group == current_gid)
 304                 return(True);
 305
 306         for (i=0;i<ngroups;i++)
 307                 if (group == groups[i])
 308                         return(True);
 309
 310         return(False);
 311 }
 312
 313 /****************************************************************************
 314  Like atoi but gets the value up to the separator character.
 315 ****************************************************************************/
 316
 317 static char *Atoic(char *p, int *n, char *c)
 318 {
 319         if (!isdigit((int)*p)) {
 320                 DEBUG(5, ("Atoic: malformed number\n"));
 321                 return NULL;
 322         }
 323
 324         (*n) = atoi(p);
 325
 326         while ((*p) && isdigit((int)*p))
 327                 p++;
 328
 329         if (strchr_m(c, *p) == NULL) {
 330                 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
 331                 return NULL;
 332         }
 333
 334         return p;
 335 }
 336
 337 /*************************************************************************
 338  Reads a list of numbers.
 339  *************************************************************************/
 340
 341 char *get_numlist(char *p, uint32 **num, int *count)
 342 {
 343         int val;
 344
 345         if (num == NULL || count == NULL)
 346                 return NULL;
 347
 348         (*count) = 0;
 349         (*num  ) = NULL;
 350
 351         while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':') {
 352                 uint32 *tn;
 353
 354                 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
 355                 if (tn == NULL) {
 356                         SAFE_FREE(*num);
 357                         return NULL;
 358                 } else
 359                         (*num) = tn;
 360                 (*num)[(*count)] = val;
 361                 (*count)++;
 362                 p++;
 363         }
 364
 365         return p;
 366 }
 367
 368 /*******************************************************************
 369  Check if a file exists - call vfs_file_exist for samba files.
 370 ********************************************************************/
 371
 372 BOOL file_exist(const char *fname,SMB_STRUCT_STAT *sbuf)
 373 {
 374         SMB_STRUCT_STAT st;
 375         if (!sbuf)
 376                 sbuf = &st;
 377
 378         if (sys_stat(fname,sbuf) != 0)
 379                 return(False);
 380
 381         return((S_ISREG(sbuf->st_mode)) || (S_ISFIFO(sbuf->st_mode)));
 382 }
 383
 384 /*******************************************************************
 385  Check a files mod time.
 386 ********************************************************************/
 387
 388 time_t file_modtime(const char *fname)
 389 {
 390         SMB_STRUCT_STAT st;
 391
 392         if (sys_stat(fname,&st) != 0)
 393                 return(0);
 394
 395         return(st.st_mtime);
 396 }
 397
 398 /*******************************************************************
 399  Check if a directory exists.
 400 ********************************************************************/
 401
 402 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
 403 {
 404         SMB_STRUCT_STAT st2;
 405         BOOL ret;
 406
 407         if (!st)
 408                 st = &st2;
 409
 410         if (sys_stat(dname,st) != 0)
 411                 return(False);
 412
 413         ret = S_ISDIR(st->st_mode);
 414         if(!ret)
 415                 errno = ENOTDIR;
 416         return ret;
 417 }
 418
 419 /*******************************************************************
 420  Returns the size in bytes of the named file.
 421 ********************************************************************/
 422
 423 SMB_OFF_T get_file_size(char *file_name)
 424 {
 425         SMB_STRUCT_STAT buf;
 426         buf.st_size = 0;
 427         if(sys_stat(file_name,&buf) != 0)
 428                 return (SMB_OFF_T)-1;
 429         return(buf.st_size);
 430 }
 431
 432 /*******************************************************************
 433  Return a string representing an attribute for a file.
 434 ********************************************************************/
 435
 436 char *attrib_string(uint16 mode)
 437 {
 438         static fstring attrstr;
 439
 440         attrstr[0] = 0;
 441
 442         if (mode & aVOLID) fstrcat(attrstr,"V");
 443         if (mode & aDIR) fstrcat(attrstr,"D");
 444         if (mode & aARCH) fstrcat(attrstr,"A");
 445         if (mode & aHIDDEN) fstrcat(attrstr,"H");
 446         if (mode & aSYSTEM) fstrcat(attrstr,"S");
 447         if (mode & aRONLY) fstrcat(attrstr,"R");
 448
 449         return(attrstr);
 450 }
 451
 452 /*******************************************************************
 453  Show a smb message structure.
 454 ********************************************************************/
 455
 456 void show_msg(char *buf)
 457 {
 458         int i;
 459         int bcc=0;
 460
 461         if (!DEBUGLVL(5))
 462                 return;
 463
 464         DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
 465                         smb_len(buf),
 466                         (int)CVAL(buf,smb_com),
 467                         (int)CVAL(buf,smb_rcls),
 468                         (int)CVAL(buf,smb_reh),
 469                         (int)SVAL(buf,smb_err),
 470                         (int)CVAL(buf,smb_flg),
 471                         (int)SVAL(buf,smb_flg2)));
 472         DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
 473                         (int)SVAL(buf,smb_tid),
 474                         (int)SVAL(buf,smb_pid),
 475                         (int)SVAL(buf,smb_uid),
 476                         (int)SVAL(buf,smb_mid)));
 477         DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
 478
 479         for (i=0;i<(int)CVAL(buf,smb_wct);i++)
 480                 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
 481                         SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
 482
 483         bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
 484
 485         DEBUGADD(5,("smb_bcc=%d\n",bcc));
 486
 487         if (DEBUGLEVEL < 10)
 488                 return;
 489
 490         if (DEBUGLEVEL < 50)
 491                 bcc = MIN(bcc, 512);
 492
 493         dump_data(10, smb_buf(buf), bcc);
 494 }
 495
 496 /*******************************************************************
 497  Set the length and marker of an smb packet.
 498 ********************************************************************/
 499
 500 void smb_setlen(char *buf,int len)
 501 {
 502         _smb_setlen(buf,len);
 503
 504         SCVAL(buf,4,0xFF);
 505         SCVAL(buf,5,'S');
 506         SCVAL(buf,6,'M');
 507         SCVAL(buf,7,'B');
 508 }
 509
 510 /*******************************************************************
 511  Setup the word count and byte count for a smb message.
 512 ********************************************************************/
 513
 514 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
 515 {
 516         if (zero)
 517                 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
 518         SCVAL(buf,smb_wct,num_words);
 519         SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
 520         smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
 521         return (smb_size + num_words*2 + num_bytes);
 522 }
 523
 524 /*******************************************************************
 525  Setup only the byte count for a smb message.
 526 ********************************************************************/
 527
 528 int set_message_bcc(char *buf,int num_bytes)
 529 {
 530         int num_words = CVAL(buf,smb_wct);
 531         SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
 532         smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
 533         return (smb_size + num_words*2 + num_bytes);
 534 }
 535
 536 /*******************************************************************
 537  Setup only the byte count for a smb message, using the end of the
 538  message as a marker.
 539 ********************************************************************/
 540
 541 int set_message_end(void *outbuf,void *end_ptr)
 542 {
 543         return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
 544 }
 545
 546 /*******************************************************************
 547  Reduce a file name, removing .. elements.
 548 ********************************************************************/
 549
 550 void dos_clean_name(char *s)
 551 {
 552         char *p=NULL;
 553
 554         DEBUG(3,("dos_clean_name [%s]\n",s));
 555
 556         /* remove any double slashes */
 557         all_string_sub(s, "\\\\", "\\", 0);
 558
 559         while ((p = strstr(s,"\\..\\")) != NULL) {
 560                 pstring s1;
 561
 562                 *p = 0;
 563                 pstrcpy(s1,p+3);
 564
 565                 if ((p=strrchr_m(s,'\\')) != NULL)
 566                         *p = 0;
 567                 else
 568                         *s = 0;
 569                 pstrcat(s,s1);
 570         }
 571
 572         trim_string(s,NULL,"\\..");
 573
 574         all_string_sub(s, "\\.\\", "\\", 0);
 575 }
 576
 577 /*******************************************************************
 578  Reduce a file name, removing .. elements.
 579 ********************************************************************/
 580
 581 void unix_clean_name(char *s)
 582 {
 583         char *p=NULL;
 584
 585         DEBUG(3,("unix_clean_name [%s]\n",s));
 586
 587         /* remove any double slashes */
 588         all_string_sub(s, "//","/", 0);
 589
 590         /* Remove leading ./ characters */
 591         if(strncmp(s, "./", 2) == 0) {
 592                 trim_string(s, "./", NULL);
 593                 if(*s == 0)
 594                         pstrcpy(s,"./");
 595         }
 596
 597         while ((p = strstr(s,"/../")) != NULL) {
 598                 pstring s1;
 599
 600                 *p = 0;
 601                 pstrcpy(s1,p+3);
 602
 603                 if ((p=strrchr_m(s,'/')) != NULL)
 604                         *p = 0;
 605                 else
 606                         *s = 0;
 607                 pstrcat(s,s1);
 608         }
 609
 610         trim_string(s,NULL,"/..");
 611 }
 612
 613 /*******************************************************************
 614  Convert '\' to '/'.
 615  Reduce a file name, removing or reducing /../ , /./ , // elements.
 616  Remove also any trailing . and /
 617  Return a new allocated string.
 618 ********************************************************************/
 619
 620 smb_ucs2_t *unix_clean_path(const smb_ucs2_t *s)
 621 {
 622         smb_ucs2_t *ns;
 623         smb_ucs2_t *p, *r, *t;
 624
 625         DEBUG(3, ("unix_clean_path\n")); /*  [%unicode]\n")); */
 626         if(!s)
 627                 return NULL;
 628
 629         /* convert '\' to '/' */
 630         ns = strdup_w(s);
 631         if (!ns)
 632                 return NULL;
 633         unix_format_w(ns);
 634
 635         /* remove all double slashes */
 636         p = ns;
 637         ns = all_string_sub_wa(p, "//", "/");
 638         SAFE_FREE(p);
 639         if (!ns)
 640                 return NULL;
 641
 642         /* remove any /./ */
 643         p = ns;
 644         ns = all_string_sub_wa(p, "/./", "/");
 645         SAFE_FREE(p);
 646         if (!ns)
 647                 return NULL;
 648
 649         /* reduce any /../ */
 650         t = ns;
 651         while (*t && (r = strstr_wa(t, "/.."))) {
 652                 t = &(r[3]);
 653                 if (*t == UCS2_CHAR('/') || *t == 0) {
 654                         *r = 0;
 655                         p = strrchr_w(ns, UCS2_CHAR('/'));
 656                         if (!p)
 657                                 p = ns;
 658                         if (*t == 0)
 659                                 *p = 0;
 660                         else
 661                                 memmove(p, t, (strlen_w(t) + 1) * sizeof(smb_ucs2_t));
 662                         t = p;
 663                 }
 664         }
 665
 666         /* remove any leading ./ trailing /. */
 667         trim_string_wa(ns, "./", "/.");
 668
 669         /* remove any leading and trailing / */
 670         trim_string_wa(ns, "/", "/");
 671
 672         return ns;
 673 }
 674
 675 /****************************************************************************
 676  Make a dir struct.
 677 ****************************************************************************/
 678
 679 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
 680 {
 681         char *p;
 682         pstring mask2;
 683
 684         pstrcpy(mask2,mask);
 685
 686         if ((mode & aDIR) != 0)
 687                 size = 0;
 688
 689         memset(buf+1,' ',11);
 690         if ((p = strchr_m(mask2,'.')) != NULL) {
 691                 *p = 0;
 692                 push_ascii(buf+1,mask2,8, 0);
 693                 push_ascii(buf+9,p+1,3, 0);
 694                 *p = '.';
 695         } else
 696                 push_ascii(buf+1,mask2,11, 0);
 697
 698         memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
 699         SCVAL(buf,21,mode);
 700         put_dos_date(buf,22,date);
 701         SSVAL(buf,26,size & 0xFFFF);
 702         SSVAL(buf,28,(size >> 16)&0xFFFF);
 703         push_ascii(buf+30,fname,12, case_sensitive ? 0 : STR_UPPER);
 704         DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
 705 }
 706
 707 /*******************************************************************
 708  Close the low 3 fd's and open dev/null in their place.
 709 ********************************************************************/
 710
 711 void close_low_fds(BOOL stderr_too)
 712 {
 713 #ifndef VALGRIND
 714         int fd;
 715         int i;
 716
 717         close(0);
 718         close(1);
 719
 720         if (stderr_too)
 721                 close(2);
 722
 723         /* try and use up these file descriptors, so silly
 724                 library routines writing to stdout etc won't cause havoc */
 725         for (i=0;i<3;i++) {
 726                 if (i == 2 && !stderr_too)
 727                         continue;
 728
 729                 fd = sys_open("/dev/null",O_RDWR,0);
 730                 if (fd < 0)
 731                         fd = sys_open("/dev/null",O_WRONLY,0);
 732                 if (fd < 0) {
 733                         DEBUG(0,("Can't open /dev/null\n"));
 734                         return;
 735                 }
 736                 if (fd != i) {
 737                         DEBUG(0,("Didn't get file descriptor %d\n",i));
 738                         return;
 739                 }
 740         }
 741 #endif
 742 }
 743
 744 /****************************************************************************
 745  Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
 746  else
 747   if SYSV use O_NDELAY
 748   if BSD use FNDELAY
 749 ****************************************************************************/
 750
 751 int set_blocking(int fd, BOOL set)
 752 {
 753         int val;
 754 #ifdef O_NONBLOCK
 755 #define FLAG_TO_SET O_NONBLOCK
 756 #else
 757 #ifdef SYSV
 758 #define FLAG_TO_SET O_NDELAY
 759 #else /* BSD */
 760 #define FLAG_TO_SET FNDELAY
 761 #endif
 762 #endif
 763
 764         if((val = sys_fcntl_long(fd, F_GETFL, 0)) == -1)
 765                 return -1;
 766         if(set) /* Turn blocking on - ie. clear nonblock flag */
 767                 val &= ~FLAG_TO_SET;
 768         else
 769                 val |= FLAG_TO_SET;
 770         return sys_fcntl_long( fd, F_SETFL, val);
 771 #undef FLAG_TO_SET
 772 }
 773
 774 /****************************************************************************
 775  Transfer some data between two fd's.
 776 ****************************************************************************/
 777
 778 #ifndef TRANSFER_BUF_SIZE
 779 #define TRANSFER_BUF_SIZE 65536
 780 #endif
 781
 782 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
 783                                                 ssize_t (*write_fn)(int, const void *, size_t))
 784 {
 785         char *buf;
 786         size_t total = 0;
 787         ssize_t read_ret;
 788         ssize_t write_ret;
 789         size_t num_to_read_thistime;
 790         size_t num_written = 0;
 791
 792         if ((buf = malloc(TRANSFER_BUF_SIZE)) == NULL)
 793                 return -1;
 794
 795         while (total < n) {
 796                 num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
 797
 798                 read_ret = (*read_fn)(infd, buf, num_to_read_thistime);
 799                 if (read_ret == -1) {
 800                         DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
 801                         SAFE_FREE(buf);
 802                         return -1;
 803                 }
 804                 if (read_ret == 0)
 805                         break;
 806
 807                 num_written = 0;
 808
 809                 while (num_written < read_ret) {
 810                         write_ret = (*write_fn)(outfd,buf + num_written, read_ret - num_written);
 811
 812                         if (write_ret == -1) {
 813                                 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
 814                                 SAFE_FREE(buf);
 815                                 return -1;
 816                         }
 817                         if (write_ret == 0)
 818                                 return (ssize_t)total;
 819
 820                         num_written += (size_t)write_ret;
 821                 }
 822
 823                 total += (size_t)read_ret;
 824         }
 825
 826         SAFE_FREE(buf);
 827         return (ssize_t)total;
 828 }
 829
 830 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
 831 {
 832         return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, sys_read, sys_write);
 833 }
 834
 835 /*******************************************************************
 836  Sleep for a specified number of milliseconds.
 837 ********************************************************************/
 838
 839 void msleep(unsigned int t)
 840 {
 841         unsigned int tdiff=0;
 842         struct timeval tval,t1,t2;
 843         fd_set fds;
 844
 845         GetTimeOfDay(&t1);
 846         GetTimeOfDay(&t2);
 847
 848         while (tdiff < t) {
 849                 tval.tv_sec = (t-tdiff)/1000;
 850                 tval.tv_usec = 1000*((t-tdiff)%1000);
 851
 852                 /* Never wait for more than 1 sec. */
 853                 if (tval.tv_sec > 1) {
 854                         tval.tv_sec = 1;
 855                         tval.tv_usec = 0;
 856                 }
 857
 858                 FD_ZERO(&fds);
 859                 errno = 0;
 860                 sys_select_intr(0,&fds,NULL,NULL,&tval);
 861
 862                 GetTimeOfDay(&t2);
 863                 if (t2.tv_sec < t1.tv_sec) {
 864                         /* Someone adjusted time... */
 865                         t1 = t2;
 866                 }
 867
 868                 tdiff = TvalDiff(&t1,&t2);
 869         }
 870 }
 871
 872 /****************************************************************************
 873  Become a daemon, discarding the controlling terminal.
 874 ****************************************************************************/
 875
 876 void become_daemon(void)
 877 {
 878         if (sys_fork())
 879                 _exit(0);
 880
 881   /* detach from the terminal */
 882 #ifdef HAVE_SETSID
 883         setsid();
 884 #elif defined(TIOCNOTTY)
 885         {
 886                 int i = sys_open("/dev/tty", O_RDWR, 0);
 887                 if (i != -1) {
 888                         ioctl(i, (int) TIOCNOTTY, (char *)0);
 889                         close(i);
 890                 }
 891         }
 892 #endif /* HAVE_SETSID */
 893
 894         /* Close fd's 0,1,2. Needed if started by rsh */
 895         close_low_fds(False);  /* Don't close stderr, let the debug system
 896                                   attach it to the logfile */
 897 }
 898
 899 /****************************************************************************
 900  Put up a yes/no prompt.
 901 ****************************************************************************/
 902
 903 BOOL yesno(char *p)
 904 {
 905         pstring ans;
 906         printf("%s",p);
 907
 908         if (!fgets(ans,sizeof(ans)-1,stdin))
 909                 return(False);
 910
 911         if (*ans == 'y' || *ans == 'Y')
 912                 return(True);
 913
 914         return(False);
 915 }
 916
 917 /****************************************************************************
 918  Expand a pointer to be a particular size.
 919 ****************************************************************************/
 920
 921 void *Realloc(void *p,size_t size)
 922 {
 923         void *ret=NULL;
 924
 925         if (size == 0) {
 926                 SAFE_FREE(p);
 927                 DEBUG(5,("Realloc asked for 0 bytes\n"));
 928                 return NULL;
 929         }
 930
 931         if (!p)
 932                 ret = (void *)malloc(size);
 933         else
 934                 ret = (void *)realloc(p,size);
 935
 936         if (!ret)
 937                 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
 938
 939         return(ret);
 940 }
 941
 942 /****************************************************************************
 943  Free memory, checks for NULL.
 944  Use directly SAFE_FREE()
 945  Exists only because we need to pass a function pointer somewhere --SSS
 946 ****************************************************************************/
 947
 948 void safe_free(void *p)
 949 {
 950         SAFE_FREE(p);
 951 }
 952
 953 /****************************************************************************
 954  Get my own name and IP.
 955 ****************************************************************************/
 956
 957 BOOL get_myname(char *my_name)
 958 {
 959         pstring hostname;
 960
 961         *hostname = 0;
 962
 963         /* get my host name */
 964         if (gethostname(hostname, sizeof(hostname)) == -1) {
 965                 DEBUG(0,("gethostname failed\n"));
 966                 return False;
 967         }
 968
 969         /* Ensure null termination. */
 970         hostname[sizeof(hostname)-1] = '\0';
 971
 972         if (my_name) {
 973                 /* split off any parts after an initial . */
 974                 char *p = strchr_m(hostname,'.');
 975
 976                 if (p)
 977                         *p = 0;
 978
 979                 fstrcpy(my_name,hostname);
 980         }
 981
 982         return(True);
 983 }
 984
 985 /****************************************************************************
 986  Get my own name, including domain.
 987 ****************************************************************************/
 988
 989 BOOL get_myfullname(char *my_name)
 990 {
 991         pstring hostname;
 992
 993         *hostname = 0;
 994
 995         /* get my host name */
 996         if (gethostname(hostname, sizeof(hostname)) == -1) {
 997                 DEBUG(0,("gethostname failed\n"));
 998                 return False;
 999         }
1000
1001         /* Ensure null termination. */
1002         hostname[sizeof(hostname)-1] = '\0';
1003
1004         if (my_name)
1005                 fstrcpy(my_name, hostname);
1006         return True;
1007 }
1008
1009 /****************************************************************************
1010  Get my own domain name.
1011 ****************************************************************************/
1012
1013 BOOL get_mydomname(char *my_domname)
1014 {
1015         pstring hostname;
1016         char *p;
1017
1018         *hostname = 0;
1019         /* get my host name */
1020         if (gethostname(hostname, sizeof(hostname)) == -1) {
1021                 DEBUG(0,("gethostname failed\n"));
1022                 return False;
1023         }
1024
1025         /* Ensure null termination. */
1026         hostname[sizeof(hostname)-1] = '\0';
1027
1028         p = strchr_m(hostname, '.');
1029
1030         if (!p)
1031                 return False;
1032
1033         p++;
1034
1035         if (my_domname)
1036                 fstrcpy(my_domname, p);
1037
1038         return True;
1039 }
1040
1041 /****************************************************************************
1042  Interpret a protocol description string, with a default.
1043 ****************************************************************************/
1044
1045 int interpret_protocol(char *str,int def)
1046 {
1047         if (strequal(str,"NT1"))
1048                 return(PROTOCOL_NT1);
1049         if (strequal(str,"LANMAN2"))
1050                 return(PROTOCOL_LANMAN2);
1051         if (strequal(str,"LANMAN1"))
1052                 return(PROTOCOL_LANMAN1);
1053         if (strequal(str,"CORE"))
1054                 return(PROTOCOL_CORE);
1055         if (strequal(str,"COREPLUS"))
1056                 return(PROTOCOL_COREPLUS);
1057         if (strequal(str,"CORE+"))
1058                 return(PROTOCOL_COREPLUS);
1059
1060         DEBUG(0,("Unrecognised protocol level %s\n",str));
1061
1062         return(def);
1063 }
1064
1065 /****************************************************************************
1066  Return true if a string could be a pure IP address.
1067 ****************************************************************************/
1068
1069 BOOL is_ipaddress(const char *str)
1070 {
1071         BOOL pure_address = True;
1072         int i;
1073
1074         for (i=0; pure_address && str[i]; i++)
1075                 if (!(isdigit((int)str[i]) || str[i] == '.'))
1076                         pure_address = False;
1077
1078         /* Check that a pure number is not misinterpreted as an IP */
1079         pure_address = pure_address && (strchr_m(str, '.') != NULL);
1080
1081         return pure_address;
1082 }
1083
1084 /****************************************************************************
1085  Interpret an internet address or name into an IP address in 4 byte form.
1086 ****************************************************************************/
1087
1088 uint32 interpret_addr(const char *str)
1089 {
1090         struct hostent *hp;
1091         uint32 res;
1092
1093         if (strcmp(str,"0.0.0.0") == 0)
1094                 return(0);
1095         if (strcmp(str,"255.255.255.255") == 0)
1096                 return(0xFFFFFFFF);
1097
1098   /* if it's in the form of an IP address then get the lib to interpret it */
1099         if (is_ipaddress(str)) {
1100                 res = inet_addr(str);
1101         } else {
1102                 /* otherwise assume it's a network name of some sort and use
1103                         sys_gethostbyname */
1104                 if ((hp = sys_gethostbyname(str)) == 0) {
1105                         DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
1106                         return 0;
1107                 }
1108
1109                 if(hp->h_addr == NULL) {
1110                         DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
1111                         return 0;
1112                 }
1113                 putip((char *)&res,(char *)hp->h_addr);
1114         }
1115
1116         if (res == (uint32)-1)
1117                 return(0);
1118
1119         return(res);
1120 }
1121
1122 /*******************************************************************
1123  A convenient addition to interpret_addr().
1124 ******************************************************************/
1125
1126 struct in_addr *interpret_addr2(const char *str)
1127 {
1128         static struct in_addr ret;
1129         uint32 a = interpret_addr(str);
1130         ret.s_addr = a;
1131         return(&ret);
1132 }
1133
1134 /*******************************************************************
1135  Check if an IP is the 0.0.0.0.
1136 ******************************************************************/
1137
1138 BOOL is_zero_ip(struct in_addr ip)
1139 {
1140         uint32 a;
1141         putip((char *)&a,(char *)&ip);
1142         return(a == 0);
1143 }
1144
1145 /*******************************************************************
1146  Set an IP to 0.0.0.0.
1147 ******************************************************************/
1148
1149 void zero_ip(struct in_addr *ip)
1150 {
1151         static BOOL init;
1152         static struct in_addr ipzero;
1153
1154         if (!init) {
1155                 ipzero = *interpret_addr2("0.0.0.0");
1156                 init = True;
1157         }
1158
1159         *ip = ipzero;
1160 }
1161
1162 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1163 /******************************************************************
1164  Remove any mount options such as -rsize=2048,wsize=2048 etc.
1165  Based on a fix from <Thomas.Hepper@icem.de>.
1166 *******************************************************************/
1167
1168 static void strip_mount_options( pstring *str)
1169 {
1170         if (**str == '-') {
1171                 char *p = *str;
1172                 while(*p && !isspace(*p))
1173                         p++;
1174                 while(*p && isspace(*p))
1175                         p++;
1176                 if(*p) {
1177                         pstring tmp_str;
1178
1179                         pstrcpy(tmp_str, p);
1180                         pstrcpy(*str, tmp_str);
1181                 }
1182         }
1183 }
1184
1185 /*******************************************************************
1186  Patch from jkf@soton.ac.uk
1187  Split Luke's automount_server into YP lookup and string splitter
1188  so can easily implement automount_path().
1189  As we may end up doing both, cache the last YP result.
1190 *******************************************************************/
1191
1192 #ifdef WITH_NISPLUS_HOME
1193 char *automount_lookup(const char *user_name)
1194 {
1195         static fstring last_key = "";
1196         static pstring last_value = "";
1197
1198         char *nis_map = (char *)lp_nis_home_map_name();
1199
1200         char buffer[NIS_MAXATTRVAL + 1];
1201         nis_result *result;
1202         nis_object *object;
1203         entry_obj  *entry;
1204
1205         if (strcmp(user_name, last_key)) {
1206                 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
1207                 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1208
1209                 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1210                         if (result->status != NIS_SUCCESS) {
1211                                 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1212                                 fstrcpy(last_key, ""); pstrcpy(last_value, "");
1213                         } else {
1214                                 object = result->objects.objects_val;
1215                                 if (object->zo_data.zo_type == ENTRY_OBJ) {
1216                                         entry = &object->zo_data.objdata_u.en_data;
1217                                         DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1218                                         DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1219
1220                                         pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1221                                         pstring_sub(last_value, "&", user_name);
1222                                         fstrcpy(last_key, user_name);
1223                                 }
1224                         }
1225                 }
1226                 nis_freeresult(result);
1227         }
1228
1229         strip_mount_options(&last_value);
1230
1231         DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
1232         return last_value;
1233 }
1234 #else /* WITH_NISPLUS_HOME */
1235
1236 char *automount_lookup(const char *user_name)
1237 {
1238         static fstring last_key = "";
1239         static pstring last_value = "";
1240
1241         int nis_error;        /* returned by yp all functions */
1242         char *nis_result;     /* yp_match inits this */
1243         int nis_result_len;  /* and set this */
1244         char *nis_domain;     /* yp_get_default_domain inits this */
1245         char *nis_map = (char *)lp_nis_home_map_name();
1246
1247         if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1248                 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1249                 return last_value;
1250         }
1251
1252         DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1253
1254         if (!strcmp(user_name, last_key)) {
1255                 nis_result = last_value;
1256                 nis_result_len = strlen(last_value);
1257                 nis_error = 0;
1258         } else {
1259                 if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name),
1260                                 &nis_result, &nis_result_len)) == 0) {
1261                         if (!nis_error && nis_result_len >= sizeof(pstring)) {
1262                                 nis_result_len = sizeof(pstring)-1;
1263                         }
1264                         fstrcpy(last_key, user_name);
1265                         strncpy(last_value, nis_result, nis_result_len);
1266                         last_value[nis_result_len] = '\0';
1267                         strip_mount_options(&last_value);
1268
1269                 } else if(nis_error == YPERR_KEY) {
1270
1271                         /* If Key lookup fails user home server is not in nis_map
1272                                 use default information for server, and home directory */
1273                         last_value[0] = 0;
1274                         DEBUG(3, ("YP Key not found:  while looking up \"%s\" in map \"%s\"\n",
1275                                         user_name, nis_map));
1276                         DEBUG(3, ("using defaults for server and home directory\n"));
1277                 } else {
1278                         DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1279                                         yperr_string(nis_error), user_name, nis_map));
1280                 }
1281         }
1282
1283         DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
1284         return last_value;
1285 }
1286 #endif /* WITH_NISPLUS_HOME */
1287 #endif
1288
1289 /*******************************************************************
1290  Are two IPs on the same subnet?
1291 ********************************************************************/
1292
1293 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
1294 {
1295         uint32 net1,net2,nmask;
1296
1297         nmask = ntohl(mask.s_addr);
1298         net1  = ntohl(ip1.s_addr);
1299         net2  = ntohl(ip2.s_addr);
1300
1301         return((net1 & nmask) == (net2 & nmask));
1302 }
1303
1304
1305 /****************************************************************************
1306  Check if a process exists. Does this work on all unixes?
1307 ****************************************************************************/
1308
1309 BOOL process_exists(pid_t pid)
1310 {
1311         /* Doing kill with a non-positive pid causes messages to be
1312          * sent to places we don't want. */
1313         SMB_ASSERT(pid > 0);
1314         return(kill(pid,0) == 0 || errno != ESRCH);
1315 }
1316
1317 /*******************************************************************
1318  Convert a uid into a user name.
1319 ********************************************************************/
1320
1321 const char *uidtoname(uid_t uid)
1322 {
1323         static fstring name;
1324         struct passwd *pass;
1325
1326         pass = getpwuid_alloc(uid);
1327         if (pass) {
1328                 fstrcpy(name, pass->pw_name);
1329                 passwd_free(&pass);
1330         } else {
1331                 slprintf(name, sizeof(name) - 1, "%ld",(long int)uid);
1332         }
1333         return name;
1334 }
1335
1336
1337 /*******************************************************************
1338  Convert a gid into a group name.
1339 ********************************************************************/
1340
1341 char *gidtoname(gid_t gid)
1342 {
1343         static fstring name;
1344         struct group *grp;
1345
1346         grp = getgrgid(gid);
1347         if (grp)
1348                 return(grp->gr_name);
1349         slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1350         return(name);
1351 }
1352
1353 /*******************************************************************
1354  Convert a user name into a uid.
1355 ********************************************************************/
1356
1357 uid_t nametouid(char *name)
1358 {
1359         struct passwd *pass;
1360         char *p;
1361         uid_t u;
1362
1363         pass = getpwnam_alloc(name);
1364         if (pass) {
1365                 u = pass->pw_uid;
1366                 passwd_free(&pass);
1367                 return u;
1368         }
1369
1370         u = (uid_t)strtol(name, &p, 0);
1371         if ((p != name) && (*p == '\0'))
1372                 return u;
1373
1374         return (uid_t)-1;
1375 }
1376
1377 /*******************************************************************
1378  Convert a name to a gid_t if possible. Return -1 if not a group.
1379 ********************************************************************/
1380
1381 gid_t nametogid(const char *name)
1382 {
1383         struct group *grp;
1384         char *p;
1385         gid_t g;
1386
1387         g = (gid_t)strtol(name, &p, 0);
1388         if ((p != name) && (*p == '\0'))
1389                 return g;
1390
1391         grp = sys_getgrnam(name);
1392         if (grp)
1393                 return(grp->gr_gid);
1394         return (gid_t)-1;
1395 }
1396
1397 /*******************************************************************
1398  Something really nasty happened - panic !
1399 ********************************************************************/
1400
1401 void smb_panic(char *why)
1402 {
1403         char *cmd = lp_panic_action();
1404         int result;
1405
1406         if (cmd && *cmd) {
1407                 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1408                 result = system(cmd);
1409
1410                 if (result == -1)
1411                         DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1412                                   strerror(errno)));
1413                 else
1414                         DEBUG(0, ("smb_panic(): action returned status %d\n",
1415                                   WEXITSTATUS(result)));
1416         }
1417         DEBUG(0,("PANIC: %s\n", why));
1418         dbgflush();
1419         abort();
1420 }
1421
1422 /*******************************************************************
1423  A readdir wrapper which just returns the file name.
1424 ********************************************************************/
1425
1426 char *readdirname(DIR *p)
1427 {
1428         SMB_STRUCT_DIRENT *ptr;
1429         char *dname;
1430
1431         if (!p)
1432                 return(NULL);
1433
1434         ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1435         if (!ptr)
1436                 return(NULL);
1437
1438         dname = ptr->d_name;
1439
1440 #ifdef NEXT2
1441         if (telldir(p) < 0)
1442                 return(NULL);
1443 #endif
1444
1445 #ifdef HAVE_BROKEN_READDIR
1446         /* using /usr/ucb/cc is BAD */
1447         dname = dname - 2;
1448 #endif
1449
1450         {
1451                 static pstring buf;
1452                 int len = NAMLEN(ptr);
1453                 memcpy(buf, dname, len);
1454                 buf[len] = 0;
1455                 dname = buf;
1456         }
1457
1458         return(dname);
1459 }
1460
1461 /*******************************************************************
1462  Utility function used to decide if the last component
1463  of a path matches a (possibly wildcarded) entry in a namelist.
1464 ********************************************************************/
1465
1466 BOOL is_in_path(char *name, name_compare_entry *namelist)
1467 {
1468         pstring last_component;
1469         char *p;
1470
1471         DEBUG(8, ("is_in_path: %s\n", name));
1472
1473         /* if we have no list it's obviously not in the path */
1474         if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1475                 DEBUG(8,("is_in_path: no name list.\n"));
1476                 return False;
1477         }
1478
1479         /* Get the last component of the unix name. */
1480         p = strrchr_m(name, '/');
1481         strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1482         last_component[sizeof(last_component)-1] = '\0';
1483
1484         for(; namelist->name != NULL; namelist++) {
1485                 if(namelist->is_wild) {
1486                         if (mask_match(last_component, namelist->name, case_sensitive)) {
1487                                 DEBUG(8,("is_in_path: mask match succeeded\n"));
1488                                 return True;
1489                         }
1490                 } else {
1491                         if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1492                                                 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1493                                 DEBUG(8,("is_in_path: match succeeded\n"));
1494                                 return True;
1495                         }
1496                 }
1497         }
1498         DEBUG(8,("is_in_path: match not found\n"));
1499
1500         return False;
1501 }
1502
1503 /*******************************************************************
1504  Strip a '/' separated list into an array of
1505  name_compare_enties structures suitable for
1506  passing to is_in_path(). We do this for
1507  speed so we can pre-parse all the names in the list
1508  and don't do it for each call to is_in_path().
1509  namelist is modified here and is assumed to be
1510  a copy owned by the caller.
1511  We also check if the entry contains a wildcard to
1512  remove a potentially expensive call to mask_match
1513  if possible.
1514 ********************************************************************/
1515
1516 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1517 {
1518         char *name_end;
1519         char *nameptr = namelist;
1520         int num_entries = 0;
1521         int i;
1522
1523         (*ppname_array) = NULL;
1524
1525         if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1526                 return;
1527
1528         /* We need to make two passes over the string. The
1529                 first to count the number of elements, the second
1530                 to split it.
1531         */
1532
1533         while(*nameptr) {
1534                 if ( *nameptr == '/' ) {
1535                         /* cope with multiple (useless) /s) */
1536                         nameptr++;
1537                         continue;
1538                 }
1539                 /* find the next / */
1540                 name_end = strchr_m(nameptr, '/');
1541
1542                 /* oops - the last check for a / didn't find one. */
1543                 if (name_end == NULL)
1544                         break;
1545
1546                 /* next segment please */
1547                 nameptr = name_end + 1;
1548                 num_entries++;
1549         }
1550
1551         if(num_entries == 0)
1552                 return;
1553
1554         if(( (*ppname_array) = (name_compare_entry *)malloc(
1555                                         (num_entries + 1) * sizeof(name_compare_entry))) == NULL) {
1556                 DEBUG(0,("set_namearray: malloc fail\n"));
1557                 return;
1558         }
1559
1560         /* Now copy out the names */
1561         nameptr = namelist;
1562         i = 0;
1563         while(*nameptr) {
1564                 if ( *nameptr == '/' ) {
1565                         /* cope with multiple (useless) /s) */
1566                         nameptr++;
1567                         continue;
1568                 }
1569                 /* find the next / */
1570                 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1571                         *name_end = 0;
1572
1573                 /* oops - the last check for a / didn't find one. */
1574                 if(name_end == NULL)
1575                         break;
1576
1577                 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1578                 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL) {
1579                         DEBUG(0,("set_namearray: malloc fail (1)\n"));
1580                         return;
1581                 }
1582
1583                 /* next segment please */
1584                 nameptr = name_end + 1;
1585                 i++;
1586         }
1587
1588         (*ppname_array)[i].name = NULL;
1589
1590         return;
1591 }
1592
1593 /****************************************************************************
1594  Routine to free a namearray.
1595 ****************************************************************************/
1596
1597 void free_namearray(name_compare_entry *name_array)
1598 {
1599         if(name_array == NULL)
1600                 return;
1601
1602         SAFE_FREE(name_array->name);
1603         SAFE_FREE(name_array);
1604 }
1605
1606 /****************************************************************************
1607  Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1608  is dealt with in posix.c
1609 ****************************************************************************/
1610
1611 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1612 {
1613         SMB_STRUCT_FLOCK lock;
1614         int ret;
1615
1616         DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1617
1618         lock.l_type = type;
1619         lock.l_whence = SEEK_SET;
1620         lock.l_start = offset;
1621         lock.l_len = count;
1622         lock.l_pid = 0;
1623
1624         ret = sys_fcntl_ptr(fd,op,&lock);
1625
1626         if (ret == -1 && errno != 0)
1627                 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1628
1629         /* a lock query */
1630         if (op == SMB_F_GETLK) {
1631                 if ((ret != -1) &&
1632                                 (lock.l_type != F_UNLCK) &&
1633                                 (lock.l_pid != 0) &&
1634                                 (lock.l_pid != sys_getpid())) {
1635                         DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1636                         return(True);
1637                 }
1638
1639                 /* it must be not locked or locked by me */
1640                 return(False);
1641         }
1642
1643         /* a lock set or unset */
1644         if (ret == -1) {
1645                 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1646                         (double)offset,(double)count,op,type,strerror(errno)));
1647                 return(False);
1648         }
1649
1650         /* everything went OK */
1651         DEBUG(8,("fcntl_lock: Lock call successful\n"));
1652
1653         return(True);
1654 }
1655
1656 /*******************************************************************
1657  Is the name specified one of my netbios names.
1658  Returns true if it is equal, false otherwise.
1659 ********************************************************************/
1660
1661 BOOL is_myname(const char *s)
1662 {
1663         int n;
1664         BOOL ret = False;
1665
1666         for (n=0; my_netbios_names(n); n++) {
1667                 if (strequal(my_netbios_names(n), s)) {
1668                         ret=True;
1669                         break;
1670                 }
1671         }
1672         DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1673         return(ret);
1674 }
1675
1676 /********************************************************************
1677  Return only the first IP address of our configured interfaces
1678  as a string
1679  *******************************************************************/
1680
1681 const char* get_my_primary_ip (void)
1682 {
1683         static fstring ip_string;
1684         int n;
1685         struct iface_struct nics[MAX_INTERFACES];
1686
1687         if ((n=get_interfaces(nics, MAX_INTERFACES)) <= 0)
1688                 return NULL;
1689
1690         fstrcpy(ip_string, inet_ntoa(nics[0].ip));
1691         return ip_string;
1692 }
1693
1694 BOOL is_myname_or_ipaddr(const char *s)
1695 {
1696         /* optimize for the common case */
1697         if (strequal(s, global_myname()))
1698                 return True;
1699
1700         /* maybe its an IP address? */
1701         if (is_ipaddress(s)) {
1702                 struct iface_struct nics[MAX_INTERFACES];
1703                 int i, n;
1704                 uint32 ip;
1705
1706                 ip = interpret_addr(s);
1707                 if ((ip==0) || (ip==0xffffffff))
1708                         return False;
1709
1710                 n = get_interfaces(nics, MAX_INTERFACES);
1711                 for (i=0; i<n; i++) {
1712                         if (ip == nics[i].ip.s_addr)
1713                                 return True;
1714                 }
1715         }
1716
1717         /* check for an alias */
1718         if (is_myname(s))
1719                 return True;
1720
1721         /* no match */
1722         return False;
1723 }
1724
1725 /*******************************************************************
1726  Set the horrid remote_arch string based on an enum.
1727 ********************************************************************/
1728
1729 void set_remote_arch(enum remote_arch_types type)
1730 {
1731         extern fstring remote_arch;
1732         ra_type = type;
1733         switch( type ) {
1734         case RA_WFWG:
1735                 fstrcpy(remote_arch, "WfWg");
1736                 return;
1737         case RA_OS2:
1738                 fstrcpy(remote_arch, "OS2");
1739                 return;
1740         case RA_WIN95:
1741                 fstrcpy(remote_arch, "Win95");
1742                 return;
1743         case RA_WINNT:
1744                 fstrcpy(remote_arch, "WinNT");
1745                 return;
1746         case RA_WIN2K:
1747                 fstrcpy(remote_arch, "Win2K");
1748                 return;
1749         case RA_SAMBA:
1750                 fstrcpy(remote_arch,"Samba");
1751                 return;
1752         default:
1753                 ra_type = RA_UNKNOWN;
1754                 fstrcpy(remote_arch, "UNKNOWN");
1755                 break;
1756         }
1757 }
1758
1759 /*******************************************************************
1760  Get the remote_arch type.
1761 ********************************************************************/
1762
1763 enum remote_arch_types get_remote_arch(void)
1764 {
1765         return ra_type;
1766 }
1767
1768
1769 void out_ascii(FILE *f, unsigned char *buf,int len)
1770 {
1771         int i;
1772         for (i=0;i<len;i++)
1773                 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1774 }
1775
1776 void out_data(FILE *f,char *buf1,int len, int per_line)
1777 {
1778         unsigned char *buf = (unsigned char *)buf1;
1779         int i=0;
1780         if (len<=0) {
1781                 return;
1782         }
1783
1784         fprintf(f, "[%03X] ",i);
1785         for (i=0;i<len;) {
1786                 fprintf(f, "%02X ",(int)buf[i]);
1787                 i++;
1788                 if (i%(per_line/2) == 0) fprintf(f, " ");
1789                 if (i%per_line == 0) {
1790                         out_ascii(f,&buf[i-per_line  ],per_line/2); fprintf(f, " ");
1791                         out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1792                         if (i<len) fprintf(f, "[%03X] ",i);
1793                 }
1794         }
1795         if ((i%per_line) != 0) {
1796                 int n;
1797
1798                 n = per_line - (i%per_line);
1799                 fprintf(f, " ");
1800                 if (n>(per_line/2)) fprintf(f, " ");
1801                 while (n--) {
1802                         fprintf(f, "   ");
1803                 }
1804                 n = MIN(per_line/2,i%per_line);
1805                 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1806                 n = (i%per_line) - n;
1807                 if (n>0) out_ascii(f,&buf[i-n],n);
1808                 fprintf(f, "\n");
1809         }
1810 }
1811
1812 void print_asc(int level, const unsigned char *buf,int len)
1813 {
1814         int i;
1815         for (i=0;i<len;i++)
1816                 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1817 }
1818
1819 void dump_data(int level, const char *buf1,int len)
1820 {
1821         const unsigned char *buf = (const unsigned char *)buf1;
1822         int i=0;
1823         if (len<=0) return;
1824
1825         if (!DEBUGLVL(level)) return;
1826
1827         DEBUGADD(level,("[%03X] ",i));
1828         for (i=0;i<len;) {
1829                 DEBUGADD(level,("%02X ",(int)buf[i]));
1830                 i++;
1831                 if (i%8 == 0) DEBUGADD(level,(" "));
1832                 if (i%16 == 0) {
1833                         print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
1834                         print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
1835                         if (i<len) DEBUGADD(level,("[%03X] ",i));
1836                 }
1837         }
1838         if (i%16) {
1839                 int n;
1840                 n = 16 - (i%16);
1841                 DEBUGADD(level,(" "));
1842                 if (n>8) DEBUGADD(level,(" "));
1843                 while (n--) DEBUGADD(level,("   "));
1844                 n = MIN(8,i%16);
1845                 print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
1846                 n = (i%16) - n;
1847                 if (n>0) print_asc(level,&buf[i-n],n);
1848                 DEBUGADD(level,("\n"));
1849         }
1850 }
1851
1852 char *tab_depth(int depth)
1853 {
1854         static pstring spaces;
1855         memset(spaces, ' ', depth * 4);
1856         spaces[depth * 4] = 0;
1857         return spaces;
1858 }
1859
1860 /*****************************************************************************
1861  Provide a checksum on a string
1862
1863  Input:  s - the null-terminated character string for which the checksum
1864              will be calculated.
1865
1866   Output: The checksum value calculated for s.
1867 *****************************************************************************/
1868
1869 int str_checksum(const char *s)
1870 {
1871         int res = 0;
1872         int c;
1873         int i=0;
1874
1875         while(*s) {
1876                 c = *s;
1877                 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1878                 s++;
1879                 i++;
1880         }
1881         return(res);
1882 }
1883
1884 /*****************************************************************
1885  Zero a memory area then free it. Used to catch bugs faster.
1886 *****************************************************************/
1887
1888 void zero_free(void *p, size_t size)
1889 {
1890         memset(p, 0, size);
1891         SAFE_FREE(p);
1892 }
1893
1894 /*****************************************************************
1895  Set our open file limit to a requested max and return the limit.
1896 *****************************************************************/
1897
1898 int set_maxfiles(int requested_max)
1899 {
1900 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1901         struct rlimit rlp;
1902         int saved_current_limit;
1903
1904         if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1905                 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1906                         strerror(errno) ));
1907                 /* just guess... */
1908                 return requested_max;
1909         }
1910
1911         /*
1912          * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1913          * account for the extra fd we need
1914          * as well as the log files and standard
1915          * handles etc. Save the limit we want to set in case
1916          * we are running on an OS that doesn't support this limit (AIX)
1917          * which always returns RLIM_INFINITY for rlp.rlim_max.
1918          */
1919
1920         /* Try raising the hard (max) limit to the requested amount. */
1921
1922 #if defined(RLIM_INFINITY)
1923         if (rlp.rlim_max != RLIM_INFINITY) {
1924                 int orig_max = rlp.rlim_max;
1925
1926                 if ( rlp.rlim_max < requested_max )
1927                         rlp.rlim_max = requested_max;
1928
1929                 /* This failing is not an error - many systems (Linux) don't
1930                         support our default request of 10,000 open files. JRA. */
1931
1932                 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1933                         DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1934                                 (int)rlp.rlim_max, strerror(errno) ));
1935
1936                         /* Set failed - restore original value from get. */
1937                         rlp.rlim_max = orig_max;
1938                 }
1939         }
1940 #endif
1941
1942         /* Now try setting the soft (current) limit. */
1943
1944         saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1945
1946         if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1947                 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1948                         (int)rlp.rlim_cur, strerror(errno) ));
1949                 /* just guess... */
1950                 return saved_current_limit;
1951         }
1952
1953         if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1954                 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1955                         strerror(errno) ));
1956                 /* just guess... */
1957                 return saved_current_limit;
1958     }
1959
1960 #if defined(RLIM_INFINITY)
1961         if(rlp.rlim_cur == RLIM_INFINITY)
1962                 return saved_current_limit;
1963 #endif
1964
1965         if((int)rlp.rlim_cur > saved_current_limit)
1966                 return saved_current_limit;
1967
1968         return rlp.rlim_cur;
1969 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1970         /*
1971          * No way to know - just guess...
1972          */
1973         return requested_max;
1974 #endif
1975 }
1976
1977 /*****************************************************************
1978  Splits out the start of the key (HKLM or HKU) and the rest of the key.
1979 *****************************************************************/
1980
1981 BOOL reg_split_key(const char *full_keyname, uint32 *reg_type, char *key_name)
1982 {
1983         pstring tmp;
1984
1985         if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1986                 return False;
1987
1988         (*reg_type) = 0;
1989
1990         DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1991
1992         if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1993                 (*reg_type) = HKEY_LOCAL_MACHINE;
1994         else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1995                 (*reg_type) = HKEY_USERS;
1996         else {
1997                 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1998                 return False;
1999         }
2000
2001         if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
2002                 fstrcpy(key_name, tmp);
2003         else
2004                 key_name[0] = 0;
2005
2006         DEBUG(10, ("reg_split_key: name %s\n", key_name));
2007
2008         return True;
2009 }
2010
2011 /*****************************************************************
2012  Possibly replace mkstemp if it is broken.
2013 *****************************************************************/
2014
2015 int smb_mkstemp(char *template)
2016 {
2017 #if HAVE_SECURE_MKSTEMP
2018         return mkstemp(template);
2019 #else
2020         /* have a reasonable go at emulating it. Hope that
2021            the system mktemp() isn't completly hopeless */
2022         char *p = mktemp(template);
2023         if (!p)
2024                 return -1;
2025         return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
2026 #endif
2027 }
2028
2029 /*****************************************************************
2030  malloc that aborts with smb_panic on fail or zero size.
2031  *****************************************************************/
2032
2033 void *smb_xmalloc(size_t size)
2034 {
2035         void *p;
2036         if (size == 0)
2037                 smb_panic("smb_xmalloc: called with zero size.\n");
2038         if ((p = malloc(size)) == NULL)
2039                 smb_panic("smb_xmalloc: malloc fail.\n");
2040         return p;
2041 }
2042
2043 /**
2044  Memdup with smb_panic on fail.
2045 **/
2046
2047 void *smb_xmemdup(const void *p, size_t size)
2048 {
2049         void *p2;
2050         p2 = smb_xmalloc(size);
2051         memcpy(p2, p, size);
2052         return p2;
2053 }
2054
2055 /**
2056  strdup that aborts on malloc fail.
2057 **/
2058
2059 char *smb_xstrdup(const char *s)
2060 {
2061         char *s1 = strdup(s);
2062         if (!s1)
2063                 smb_panic("smb_xstrdup: malloc fail\n");
2064         return s1;
2065 }
2066
2067 /**
2068  strndup that aborts on malloc fail.
2069 **/
2070
2071 char *smb_xstrndup(const char *s, size_t n)
2072 {
2073         char *s1 = strndup(s, n);
2074         if (!s1)
2075                 smb_panic("smb_xstrndup: malloc fail\n");
2076         return s1;
2077 }
2078
2079 /*
2080   vasprintf that aborts on malloc fail
2081 */
2082
2083 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2084 {
2085         int n;
2086         va_list ap2;
2087
2088         VA_COPY(ap2, ap);
2089
2090         n = vasprintf(ptr, format, ap2);
2091         if (n == -1 || ! *ptr)
2092                 smb_panic("smb_xvasprintf: out of memory");
2093         return n;
2094 }
2095
2096 /*****************************************************************
2097  Like strdup but for memory.
2098 *****************************************************************/
2099
2100 void *memdup(const void *p, size_t size)
2101 {
2102         void *p2;
2103         if (size == 0)
2104                 return NULL;
2105         p2 = malloc(size);
2106         if (!p2)
2107                 return NULL;
2108         memcpy(p2, p, size);
2109         return p2;
2110 }
2111
2112 /*****************************************************************
2113  Get local hostname and cache result.
2114 *****************************************************************/
2115
2116 char *myhostname(void)
2117 {
2118         static pstring ret;
2119         if (ret[0] == 0)
2120                 get_myname(ret);
2121         return ret;
2122 }
2123
2124 /*****************************************************************
2125  A useful function for returning a path in the Samba lock directory.
2126 *****************************************************************/
2127
2128 char *lock_path(const char *name)
2129 {
2130         static pstring fname;
2131
2132         pstrcpy(fname,lp_lockdir());
2133         trim_string(fname,"","/");
2134
2135         if (!directory_exist(fname,NULL))
2136                 mkdir(fname,0755);
2137
2138         pstrcat(fname,"/");
2139         pstrcat(fname,name);
2140
2141         return fname;
2142 }
2143
2144 /*****************************************************************
2145  A useful function for returning a path in the Samba pid directory.
2146 *****************************************************************/
2147
2148 char *pid_path(const char *name)
2149 {
2150         static pstring fname;
2151
2152         pstrcpy(fname,lp_piddir());
2153         trim_string(fname,"","/");
2154
2155         if (!directory_exist(fname,NULL))
2156                 mkdir(fname,0755);
2157
2158         pstrcat(fname,"/");
2159         pstrcat(fname,name);
2160
2161         return fname;
2162 }
2163
2164 /**
2165  * @brief Returns an absolute path to a file in the Samba lib directory.
2166  *
2167  * @param name File to find, relative to LIBDIR.
2168  *
2169  * @retval Pointer to a static #pstring containing the full path.
2170  **/
2171
2172 char *lib_path(const char *name)
2173 {
2174         static pstring fname;
2175         snprintf(fname, sizeof(fname), "%s/%s", dyn_LIBDIR, name);
2176         return fname;
2177 }
2178
2179 /*******************************************************************
2180  Given a filename - get its directory name
2181  NB: Returned in static storage.  Caveats:
2182  o  Not safe in thread environment.
2183  o  Caller must not free.
2184  o  If caller wishes to preserve, they should copy.
2185 ********************************************************************/
2186
2187 char *parent_dirname(const char *path)
2188 {
2189         static pstring dirpath;
2190         char *p;
2191
2192         if (!path)
2193                 return(NULL);
2194
2195         pstrcpy(dirpath, path);
2196         p = strrchr_m(dirpath, '/');  /* Find final '/', if any */
2197         if (!p) {
2198                 pstrcpy(dirpath, ".");    /* No final "/", so dir is "." */
2199         } else {
2200                 if (p == dirpath)
2201                         ++p;    /* For root "/", leave "/" in place */
2202                 *p = '\0';
2203         }
2204         return dirpath;
2205 }
2206
2207
2208 /*******************************************************************
2209  Determine if a pattern contains any Microsoft wildcard characters.
2210 *******************************************************************/
2211
2212 BOOL ms_has_wild(char *s)
2213 {
2214         char c;
2215         while ((c = *s++)) {
2216                 switch (c) {
2217                 case '*':
2218                 case '?':
2219                 case '<':
2220                 case '>':
2221                 case '"':
2222                         return True;
2223                 }
2224         }
2225         return False;
2226 }
2227
2228 BOOL ms_has_wild_w(const smb_ucs2_t *s)
2229 {
2230         smb_ucs2_t c;
2231         if (!s) return False;
2232         while ((c = *s++)) {
2233                 switch (c) {
2234                 case UCS2_CHAR('*'):
2235                 case UCS2_CHAR('?'):
2236                 case UCS2_CHAR('<'):
2237                 case UCS2_CHAR('>'):
2238                 case UCS2_CHAR('"'):
2239                         return True;
2240                 }
2241         }
2242         return False;
2243 }
2244
2245 /*******************************************************************
2246  A wrapper that handles case sensitivity and the special handling
2247  of the ".." name.
2248 *******************************************************************/
2249
2250 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
2251 {
2252         fstring p2, s2;
2253
2254         if (strcmp(string,"..") == 0)
2255                 string = ".";
2256         if (strcmp(pattern,".") == 0)
2257                 return False;
2258
2259         if (is_case_sensitive)
2260                 return ms_fnmatch(pattern, string, Protocol) == 0;
2261
2262         fstrcpy(p2, pattern);
2263         fstrcpy(s2, string);
2264         strlower(p2);
2265         strlower(s2);
2266         return ms_fnmatch(p2, s2, Protocol) == 0;
2267 }
2268
2269 /*********************************************************
2270  Recursive routine that is called by unix_wild_match.
2271 *********************************************************/
2272
2273 static BOOL unix_do_match(char *regexp, char *str)
2274 {
2275         char *p;
2276
2277         for( p = regexp; *p && *str; ) {
2278
2279                 switch(*p) {
2280                         case '?':
2281                                 str++;
2282                                 p++;
2283                                 break;
2284
2285                         case '*':
2286
2287                                 /*
2288                                  * Look for a character matching
2289                                  * the one after the '*'.
2290                                  */
2291                                 p++;
2292                                 if(!*p)
2293                                         return True; /* Automatic match */
2294                                 while(*str) {
2295
2296                                         while(*str && (*p != *str))
2297                                                 str++;
2298
2299                                         /*
2300                                          * Patch from weidel@multichart.de. In the case of the regexp
2301                                          * '*XX*' we want to ensure there are at least 2 'X' characters
2302                                          * in the string after the '*' for a match to be made.
2303                                          */
2304
2305                                         {
2306                                                 int matchcount=0;
2307
2308                                                 /*
2309                                                  * Eat all the characters that match, but count how many there were.
2310                                                  */
2311
2312                                                 while(*str && (*p == *str)) {
2313                                                         str++;
2314                                                         matchcount++;
2315                                                 }
2316
2317                                                 /*
2318                                                  * Now check that if the regexp had n identical characters that
2319                                                  * matchcount had at least that many matches.
2320                                                  */
2321
2322                                                 while ( *(p+1) && (*(p+1) == *p)) {
2323                                                         p++;
2324                                                         matchcount--;
2325                                                 }
2326
2327                                                 if ( matchcount <= 0 )
2328                                                         return False;
2329                                         }
2330
2331                                         str--; /* We've eaten the match char after the '*' */
2332
2333                                         if(unix_do_match(p, str))
2334                                                 return True;
2335
2336                                         if(!*str)
2337                                                 return False;
2338                                         else
2339                                                 str++;
2340                                 }
2341                                 return False;
2342
2343                         default:
2344                                 if(*str != *p)
2345                                         return False;
2346                                 str++;
2347                                 p++;
2348                                 break;
2349                 }
2350         }
2351
2352         if(!*p && !*str)
2353                 return True;
2354
2355         if (!*p && str[0] == '.' && str[1] == 0)
2356                 return(True);
2357
2358         if (!*str && *p == '?') {
2359                 while (*p == '?')
2360                         p++;
2361                 return(!*p);
2362         }
2363
2364         if(!*str && (*p == '*' && p[1] == '\0'))
2365                 return True;
2366
2367         return False;
2368 }
2369
2370 /*******************************************************************
2371  Simple case insensitive interface to a UNIX wildcard matcher.
2372 *******************************************************************/
2373
2374 BOOL unix_wild_match(char *pattern, char *string)
2375 {
2376         pstring p2, s2;
2377         char *p;
2378
2379         pstrcpy(p2, pattern);
2380         pstrcpy(s2, string);
2381         strlower(p2);
2382         strlower(s2);
2383
2384         /* Remove any *? and ** from the pattern as they are meaningless */
2385         for(p = p2; *p; p++)
2386                 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
2387                         pstrcpy( &p[1], &p[2]);
2388
2389         if (strequal(p2,"*"))
2390                 return True;
2391
2392         return unix_do_match(p2, s2) == 0;
2393 }
2394
2395 #ifdef __INSURE__
2396
2397 /*******************************************************************
2398 This routine is a trick to immediately catch errors when debugging
2399 with insure. A xterm with a gdb is popped up when insure catches
2400 a error. It is Linux specific.
2401 ********************************************************************/
2402
2403 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
2404 {
2405         static int (*fn)();
2406         int ret;
2407         char pidstr[10];
2408         /* you can get /usr/bin/backtrace from
2409            http://samba.org/ftp/unpacked/junkcode/backtrace */
2410         pstring cmd = "/usr/bin/backtrace %d";
2411
2412         slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
2413         pstring_sub(cmd, "%d", pidstr);
2414
2415         if (!fn) {
2416                 static void *h;
2417                 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
2418                 fn = dlsym(h, "_Insure_trap_error");
2419
2420                 if (!h || h == _Insure_trap_error) {
2421                         h = dlopen("/usr/local/parasoft/lib.linux2/libinsure.so", RTLD_LAZY);
2422                         fn = dlsym(h, "_Insure_trap_error");
2423                 }
2424         }
2425
2426         ret = fn(a1, a2, a3, a4, a5, a6);
2427
2428         system(cmd);
2429
2430         return ret;
2431 }
2432 #endif