dlls/ntdll/rtlstr.c

   1 /*
   2  * Rtl string functions
   3  *
   4  * Copyright (C) 1996-1998 Marcus Meissner
   5  * Copyright (C) 2000      Alexandre Julliard
   6  * Copyright (C) 2003      Thomas Mertes
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library 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 GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include <assert.h>
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #include "ntstatus.h"
  29 #define WIN32_NO_STATUS
  30 #include "windef.h"
  31 #include "winnt.h"
  32 #include "winternl.h"
  33 #include "wine/debug.h"
  34 #include "ntdll_misc.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  37
  38 #define GUID_STRING_LENGTH    38
  39
  40
  41 /**************************************************************************
  42  *      RtlInitAnsiString   (NTDLL.@)
  43  *
  44  * Initializes a buffered ansi string.
  45  *
  46  * RETURNS
  47  *  Nothing.
  48  *
  49  * NOTES
  50  *  Assigns source to target->Buffer. The length of source is assigned to
  51  *  target->Length and target->MaximumLength. If source is NULL the length
  52  *  of source is assumed to be 0.
  53  */
  54 void WINAPI RtlInitAnsiString(
  55     PANSI_STRING target, /* [I/O] Buffered ansi string to be initialized */
  56     PCSZ source)         /* [I]   '\0' terminated string used to initialize target */
  57 {
  58     if ((target->Buffer = (PCHAR) source))
  59     {
  60         target->Length = strlen(source);
  61         target->MaximumLength = target->Length + 1;
  62     }
  63     else target->Length = target->MaximumLength = 0;
  64 }
  65
  66 /**************************************************************************
  67  *      RtlInitAnsiStringEx   (NTDLL.@)
  68  *
  69  * Initializes a buffered ansi string.
  70  *
  71  * RETURNS
  72  *  An appropriate NTSTATUS value.
  73  *
  74  * NOTES
  75  *  Assigns source to target->Buffer. The length of source is assigned to
  76  *  target->Length and target->MaximumLength. If source is NULL the length
  77  *  of source is assumed to be 0.
  78  */
  79 NTSTATUS WINAPI RtlInitAnsiStringEx(PANSI_STRING target, PCSZ source)
  80 {
  81     if (source)
  82     {
  83         unsigned int len = strlen(source);
  84         if (len+1 > 0xffff)
  85             return STATUS_NAME_TOO_LONG;
  86
  87         target->Buffer = (PCHAR) source;
  88         target->Length = len;
  89         target->MaximumLength = len + 1;
  90     }
  91     else
  92     {
  93         target->Buffer = NULL;
  94         target->Length = 0;
  95         target->MaximumLength = 0;
  96     }
  97     return STATUS_SUCCESS;
  98 }
  99
 100 /**************************************************************************
 101  *      RtlInitString   (NTDLL.@)
 102  *
 103  * Initializes a buffered string.
 104  *
 105  * RETURNS
 106  *  Nothing.
 107  *
 108  * NOTES
 109  *  Assigns source to target->Buffer. The length of source is assigned to
 110  *  target->Length and target->MaximumLength. If source is NULL the length
 111  *  of source is assumed to be 0.
 112  */
 113 void WINAPI RtlInitString(
 114     PSTRING target, /* [I/O] Buffered string to be initialized */
 115     PCSZ source)    /* [I]   '\0' terminated string used to initialize target */
 116 {
 117     RtlInitAnsiString( target, source );
 118 }
 119
 120
 121 /**************************************************************************
 122  *      RtlFreeAnsiString   (NTDLL.@)
 123  */
 124 void WINAPI RtlFreeAnsiString( PSTRING str )
 125 {
 126     if (str->Buffer)
 127     {
 128         RtlFreeHeap( GetProcessHeap(), 0, str->Buffer );
 129         RtlZeroMemory( str, sizeof(*str) );
 130     }
 131 }
 132
 133
 134 /**************************************************************************
 135  *      RtlFreeOemString   (NTDLL.@)
 136  */
 137 void WINAPI RtlFreeOemString( PSTRING str )
 138 {
 139     RtlFreeAnsiString( str );
 140 }
 141
 142
 143 /**************************************************************************
 144  *      RtlCopyString   (NTDLL.@)
 145  */
 146 void WINAPI RtlCopyString( STRING *dst, const STRING *src )
 147 {
 148     if (src)
 149     {
 150         unsigned int len = min( src->Length, dst->MaximumLength );
 151         memcpy( dst->Buffer, src->Buffer, len );
 152         dst->Length = len;
 153     }
 154     else dst->Length = 0;
 155 }
 156
 157
 158 /**************************************************************************
 159  *      RtlInitUnicodeString   (NTDLL.@)
 160  *
 161  * Initializes a buffered unicode string.
 162  *
 163  * RETURNS
 164  *  Nothing.
 165  *
 166  * NOTES
 167  *  Assigns source to target->Buffer. The length of source is assigned to
 168  *  target->Length and target->MaximumLength. If source is NULL the length
 169  *  of source is assumed to be 0.
 170  */
 171 void WINAPI RtlInitUnicodeString(
 172     PUNICODE_STRING target, /* [I/O] Buffered unicode string to be initialized */
 173     PCWSTR source)          /* [I]   '\0' terminated unicode string used to initialize target */
 174 {
 175     if ((target->Buffer = (PWSTR) source))
 176     {
 177         unsigned int length = wcslen(source) * sizeof(WCHAR);
 178         if (length > 0xfffc)
 179             length = 0xfffc;
 180         target->Length = length;
 181         target->MaximumLength = target->Length + sizeof(WCHAR);
 182     }
 183     else target->Length = target->MaximumLength = 0;
 184 }
 185
 186
 187 /**************************************************************************
 188  *      RtlInitUnicodeStringEx   (NTDLL.@)
 189  *
 190  * Initializes a buffered unicode string.
 191  *
 192  * RETURNS
 193  *  Success: STATUS_SUCCESS. target is initialized.
 194  *  Failure: STATUS_NAME_TOO_LONG, if the source string is larger than 65532 bytes.
 195  *
 196  * NOTES
 197  *  Assigns source to target->Buffer. The length of source is assigned to
 198  *  target->Length and target->MaximumLength. If source is NULL the length
 199  *  of source is assumed to be 0.
 200  */
 201 NTSTATUS WINAPI RtlInitUnicodeStringEx(
 202     PUNICODE_STRING target, /* [I/O] Buffered unicode string to be initialized */
 203     PCWSTR source)          /* [I]   '\0' terminated unicode string used to initialize target */
 204 {
 205     if (source != NULL) {
 206         unsigned int len = wcslen(source) * sizeof(WCHAR);
 207
 208         if (len > 0xFFFC) {
 209             return STATUS_NAME_TOO_LONG;
 210         } else {
 211             target->Length = len;
 212             target->MaximumLength = len + sizeof(WCHAR);
 213             target->Buffer = (PWSTR) source;
 214         } /* if */
 215     } else {
 216         target->Length = 0;
 217         target->MaximumLength = 0;
 218         target->Buffer = NULL;
 219     } /* if */
 220     return STATUS_SUCCESS;
 221 }
 222
 223
 224 /**************************************************************************
 225  *      RtlCreateUnicodeString   (NTDLL.@)
 226  *
 227  * Creates a UNICODE_STRING from a null-terminated Unicode string.
 228  *
 229  * RETURNS
 230  *     Success: TRUE
 231  *     Failure: FALSE
 232  */
 233 BOOLEAN WINAPI RtlCreateUnicodeString( PUNICODE_STRING target, LPCWSTR src )
 234 {
 235     int len = (wcslen(src) + 1) * sizeof(WCHAR);
 236     if (!(target->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len ))) return FALSE;
 237     memcpy( target->Buffer, src, len );
 238     target->MaximumLength = len;
 239     target->Length = len - sizeof(WCHAR);
 240     return TRUE;
 241 }
 242
 243
 244 /**************************************************************************
 245  *      RtlCreateUnicodeStringFromAsciiz   (NTDLL.@)
 246  *
 247  * Creates a UNICODE_STRING from a null-terminated Ascii string.
 248  *
 249  * RETURNS
 250  *     Success: TRUE
 251  *     Failure: FALSE
 252  */
 253 BOOLEAN WINAPI RtlCreateUnicodeStringFromAsciiz( PUNICODE_STRING target, LPCSTR src )
 254 {
 255     STRING ansi;
 256     RtlInitAnsiString( &ansi, src );
 257     return !RtlAnsiStringToUnicodeString( target, &ansi, TRUE );
 258 }
 259
 260
 261 /**************************************************************************
 262  *      RtlFreeUnicodeString   (NTDLL.@)
 263  *
 264  * Frees a UNICODE_STRING created with RtlCreateUnicodeString() or
 265  * RtlCreateUnicodeStringFromAsciiz().
 266  *
 267  * RETURNS
 268  *     nothing
 269  */
 270 void WINAPI RtlFreeUnicodeString( PUNICODE_STRING str )
 271 {
 272     if (str->Buffer)
 273     {
 274         RtlFreeHeap( GetProcessHeap(), 0, str->Buffer );
 275         RtlZeroMemory( str, sizeof(*str) );
 276     }
 277 }
 278
 279
 280 /**************************************************************************
 281  *      RtlCopyUnicodeString   (NTDLL.@)
 282  *
 283  * Copies from one UNICODE_STRING to another.
 284  *
 285  * RETURNS
 286  *     nothing
 287  */
 288 void WINAPI RtlCopyUnicodeString( UNICODE_STRING *dst, const UNICODE_STRING *src )
 289 {
 290     if (src)
 291     {
 292         unsigned int len = min( src->Length, dst->MaximumLength );
 293         memcpy( dst->Buffer, src->Buffer, len );
 294         dst->Length = len;
 295         /* append terminating '\0' if enough space */
 296         if (len < dst->MaximumLength) dst->Buffer[len / sizeof(WCHAR)] = 0;
 297     }
 298     else dst->Length = 0;
 299 }
 300
 301
 302 /**************************************************************************
 303  *      RtlDuplicateUnicodeString   (NTDLL.@)
 304  *
 305  * Duplicates a unicode string.
 306  *
 307  * RETURNS
 308  *  Success: STATUS_SUCCESS. destination contains the duplicated unicode string.
 309  *  Failure: STATUS_INVALID_PARAMETER, if one of the parameters is illegal.
 310  *           STATUS_NO_MEMORY, if the allocation fails.
 311  *
 312  * NOTES
 313  *  For add_nul there are several possible values:
 314  *  0 = destination will not be '\0' terminated,
 315  *  1 = destination will be '\0' terminated,
 316  *  3 = like 1 but for an empty source string produce '\0' terminated empty
 317  *     Buffer instead of assigning NULL to the Buffer.
 318  *  Other add_nul values are invalid.
 319  */
 320 NTSTATUS WINAPI RtlDuplicateUnicodeString(
 321     int add_nul,                  /* [I] flag */
 322     const UNICODE_STRING *source, /* [I] Unicode string to be duplicated */
 323     UNICODE_STRING *destination)  /* [O] destination for the duplicated unicode string */
 324 {
 325     if (source == NULL || destination == NULL ||
 326         source->Length > source->MaximumLength ||
 327         (source->Length == 0 && source->MaximumLength > 0 && source->Buffer == NULL) ||
 328         add_nul == 2 || add_nul >= 4 || add_nul < 0) {
 329         return STATUS_INVALID_PARAMETER;
 330     } else {
 331         if (source->Length == 0 && add_nul != 3) {
 332             destination->Length = 0;
 333             destination->MaximumLength = 0;
 334             destination->Buffer = NULL;
 335         } else {
 336             unsigned int destination_max_len = source->Length;
 337
 338             if (add_nul) {
 339                 destination_max_len += sizeof(WCHAR);
 340             } /* if */
 341             destination->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, destination_max_len);
 342             if (destination->Buffer == NULL) {
 343                 return STATUS_NO_MEMORY;
 344             } else {
 345                 memcpy(destination->Buffer, source->Buffer, source->Length);
 346                 destination->Length = source->Length;
 347                 destination->MaximumLength = source->Length;
 348                 /* append terminating '\0' if enough space */
 349                 if (add_nul) {
 350                     destination->MaximumLength = destination_max_len;
 351                     destination->Buffer[destination->Length / sizeof(WCHAR)] = 0;
 352                 } /* if */
 353             } /* if */
 354         } /* if */
 355     } /* if */
 356     return STATUS_SUCCESS;
 357 }
 358
 359
 360 /**************************************************************************
 361  *      RtlEraseUnicodeString   (NTDLL.@)
 362  *
 363  * Overwrites a UNICODE_STRING with zeros.
 364  *
 365  * RETURNS
 366  *     nothing
 367  */
 368 void WINAPI RtlEraseUnicodeString( UNICODE_STRING *str )
 369 {
 370     if (str->Buffer)
 371     {
 372         memset( str->Buffer, 0, str->MaximumLength );
 373         str->Length = 0;
 374     }
 375 }
 376
 377
 378 /*
 379     COMPARISON FUNCTIONS
 380 */
 381
 382
 383 /******************************************************************************
 384  *      RtlCompareString   (NTDLL.@)
 385  */
 386 LONG WINAPI RtlCompareString( const STRING *s1, const STRING *s2, BOOLEAN CaseInsensitive )
 387 {
 388     unsigned int len;
 389     LONG ret = 0;
 390     LPCSTR p1, p2;
 391
 392     len = min(s1->Length, s2->Length);
 393     p1 = s1->Buffer;
 394     p2 = s2->Buffer;
 395
 396     if (CaseInsensitive)
 397     {
 398         while (!ret && len--) ret = RtlUpperChar(*p1++) - RtlUpperChar(*p2++);
 399     }
 400     else
 401     {
 402         while (!ret && len--) ret = *p1++ - *p2++;
 403     }
 404     if (!ret) ret = s1->Length - s2->Length;
 405     return ret;
 406 }
 407
 408
 409 /******************************************************************************
 410  *      RtlCompareUnicodeString   (NTDLL.@)
 411  */
 412 LONG WINAPI RtlCompareUnicodeString( const UNICODE_STRING *s1, const UNICODE_STRING *s2,
 413                                      BOOLEAN CaseInsensitive )
 414 {
 415     return RtlCompareUnicodeStrings( s1->Buffer, s1->Length / sizeof(WCHAR),
 416                                      s2->Buffer, s2->Length / sizeof(WCHAR), CaseInsensitive );
 417 }
 418
 419
 420 /**************************************************************************
 421  *      RtlEqualString   (NTDLL.@)
 422  *
 423  * Determine if two strings are equal.
 424  *
 425  * PARAMS
 426  *  s1              [I] Source string
 427  *  s2              [I] String to compare to s1
 428  *  CaseInsensitive [I] TRUE = Case insensitive, FALSE = Case sensitive
 429  *
 430  * RETURNS
 431  *  Non-zero if s1 is equal to s2, 0 otherwise.
 432  */
 433 BOOLEAN WINAPI RtlEqualString( const STRING *s1, const STRING *s2, BOOLEAN CaseInsensitive )
 434 {
 435     if (s1->Length != s2->Length) return FALSE;
 436     return !RtlCompareString( s1, s2, CaseInsensitive );
 437 }
 438
 439
 440 /**************************************************************************
 441  *      RtlEqualUnicodeString   (NTDLL.@)
 442  *
 443  * Unicode version of RtlEqualString.
 444  */
 445 BOOLEAN WINAPI RtlEqualUnicodeString( const UNICODE_STRING *s1, const UNICODE_STRING *s2,
 446                                       BOOLEAN CaseInsensitive )
 447 {
 448     if (s1->Length != s2->Length) return FALSE;
 449     return !RtlCompareUnicodeString( s1, s2, CaseInsensitive );
 450 }
 451
 452
 453 /**************************************************************************
 454  *      RtlPrefixString   (NTDLL.@)
 455  *
 456  * Determine if one string is a prefix of another.
 457  *
 458  * PARAMS
 459  *  s1          [I] Prefix to look for in s2
 460  *  s2          [I] String that may contain s1 as a prefix
 461  *  ignore_case [I] TRUE = Case insensitive, FALSE = Case sensitive
 462  *
 463  * RETURNS
 464  *  TRUE if s2 contains s1 as a prefix, FALSE otherwise.
 465  */
 466 BOOLEAN WINAPI RtlPrefixString( const STRING *s1, const STRING *s2, BOOLEAN ignore_case )
 467 {
 468     unsigned int i;
 469
 470     if (s1->Length > s2->Length) return FALSE;
 471     if (ignore_case)
 472     {
 473         for (i = 0; i < s1->Length; i++)
 474             if (RtlUpperChar(s1->Buffer[i]) != RtlUpperChar(s2->Buffer[i])) return FALSE;
 475     }
 476     else
 477     {
 478         for (i = 0; i < s1->Length; i++)
 479             if (s1->Buffer[i] != s2->Buffer[i]) return FALSE;
 480     }
 481     return TRUE;
 482 }
 483
 484
 485 /**************************************************************************
 486  *      RtlEqualComputerName   (NTDLL.@)
 487  *
 488  * Determine if two computer names are the same.
 489  *
 490  * PARAMS
 491  *  left  [I] First computer name
 492  *  right [I] Second computer name
 493  *
 494  * RETURNS
 495  *  0 if the names are equal, non-zero otherwise.
 496  *
 497  * NOTES
 498  *  The comparison is case insensitive.
 499  */
 500 NTSTATUS WINAPI RtlEqualComputerName(const UNICODE_STRING *left,
 501                                      const UNICODE_STRING *right)
 502 {
 503     NTSTATUS ret;
 504     STRING upLeft, upRight;
 505
 506     if (!(ret = RtlUpcaseUnicodeStringToOemString( &upLeft, left, TRUE )))
 507     {
 508        if (!(ret = RtlUpcaseUnicodeStringToOemString( &upRight, right, TRUE )))
 509        {
 510          ret = RtlEqualString( &upLeft, &upRight, FALSE );
 511          RtlFreeOemString( &upRight );
 512        }
 513        RtlFreeOemString( &upLeft );
 514     }
 515     return ret;
 516 }
 517
 518
 519 /**************************************************************************
 520  *      RtlEqualDomainName   (NTDLL.@)
 521  *
 522  * Determine if two domain names are the same.
 523  *
 524  * PARAMS
 525  *  left  [I] First domain name
 526  *  right [I] Second domain name
 527  *
 528  * RETURNS
 529  *  0 if the names are equal, non-zero otherwise.
 530  *
 531  * NOTES
 532  *  The comparison is case insensitive.
 533  */
 534 NTSTATUS WINAPI RtlEqualDomainName(const UNICODE_STRING *left,
 535                                    const UNICODE_STRING *right)
 536 {
 537     return RtlEqualComputerName(left, right);
 538 }
 539
 540
 541 /*
 542         COPY BETWEEN ANSI_STRING or UNICODE_STRING
 543         there is no parameter checking, it just crashes
 544 */
 545
 546
 547 /**************************************************************************
 548  *      RtlAnsiStringToUnicodeString   (NTDLL.@)
 549  *
 550  * Converts an ansi string to a unicode string.
 551  *
 552  * RETURNS
 553  *  Success: STATUS_SUCCESS. uni contains the converted string
 554  *  Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and ansi is too small.
 555  *           STATUS_NO_MEMORY, if doalloc is TRUE and the allocation fails.
 556  *           STATUS_INVALID_PARAMETER_2, if the unicode string would be larger than 65535.
 557  *
 558  * NOTES
 559  *  This function always writes a terminating '\0'.
 560  */
 561 NTSTATUS WINAPI RtlAnsiStringToUnicodeString(
 562     PUNICODE_STRING uni, /* [I/O] Destination for the unicode string */
 563     PCANSI_STRING ansi,  /* [I]   Ansi string to be converted */
 564     BOOLEAN doalloc)     /* [I]   TRUE=Allocate new buffer for uni, FALSE=Use existing buffer */
 565 {
 566     DWORD total = RtlAnsiStringToUnicodeSize( ansi );
 567
 568     if (total > 0xffff) return STATUS_INVALID_PARAMETER_2;
 569     uni->Length = total - sizeof(WCHAR);
 570     if (doalloc)
 571     {
 572         uni->MaximumLength = total;
 573         if (!(uni->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, total )))
 574             return STATUS_NO_MEMORY;
 575     }
 576     else if (total > uni->MaximumLength) return STATUS_BUFFER_OVERFLOW;
 577
 578     RtlMultiByteToUnicodeN( uni->Buffer, uni->Length, NULL, ansi->Buffer, ansi->Length );
 579     uni->Buffer[uni->Length / sizeof(WCHAR)] = 0;
 580     return STATUS_SUCCESS;
 581 }
 582
 583
 584 /**************************************************************************
 585  *      RtlOemStringToUnicodeString   (NTDLL.@)
 586  *
 587  * Converts an oem string to a unicode string.
 588  *
 589  * RETURNS
 590  *  Success: STATUS_SUCCESS. uni contains the converted string
 591  *  Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and oem is too small.
 592  *           STATUS_NO_MEMORY, if doalloc is TRUE and the allocation fails.
 593  *           STATUS_INVALID_PARAMETER_2, if the unicode string would be larger than 65535.
 594  *
 595  * NOTES
 596  *  This function always writes a terminating '\0'.
 597  */
 598 NTSTATUS WINAPI RtlOemStringToUnicodeString(
 599     UNICODE_STRING *uni, /* [I/O] Destination for the unicode string */
 600     const STRING *oem,   /* [I]   Oem string to be converted */
 601     BOOLEAN doalloc)     /* [I]   TRUE=Allocate new buffer for uni, FALSE=Use existing buffer */
 602 {
 603     DWORD total = RtlOemStringToUnicodeSize( oem );
 604
 605     if (total > 0xffff) return STATUS_INVALID_PARAMETER_2;
 606     uni->Length = total - sizeof(WCHAR);
 607     if (doalloc)
 608     {
 609         uni->MaximumLength = total;
 610         if (!(uni->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, total )))
 611             return STATUS_NO_MEMORY;
 612     }
 613     else if (total > uni->MaximumLength) return STATUS_BUFFER_OVERFLOW;
 614
 615     RtlOemToUnicodeN( uni->Buffer, uni->Length, NULL, oem->Buffer, oem->Length );
 616     uni->Buffer[uni->Length / sizeof(WCHAR)] = 0;
 617     return STATUS_SUCCESS;
 618 }
 619
 620
 621 /**************************************************************************
 622  *      RtlUnicodeStringToAnsiString   (NTDLL.@)
 623  *
 624  * Converts a unicode string to an ansi string.
 625  *
 626  * RETURNS
 627  *  Success: STATUS_SUCCESS. ansi contains the converted string
 628  *  Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and ansi is too small.
 629  *           STATUS_NO_MEMORY, if doalloc is TRUE and the allocation fails.
 630  *
 631  * NOTES
 632  *  This function always writes a terminating '\0'.
 633  *  It performs a partial copy if ansi is too small.
 634  */
 635 NTSTATUS WINAPI RtlUnicodeStringToAnsiString(
 636     STRING *ansi,              /* [I/O] Destination for the ansi string */
 637     const UNICODE_STRING *uni, /* [I]   Unicode string to be converted */
 638     BOOLEAN doalloc)           /* [I]   TRUE=Allocate new buffer for ansi, FALSE=Use existing buffer */
 639 {
 640     NTSTATUS ret = STATUS_SUCCESS;
 641     DWORD len = RtlUnicodeStringToAnsiSize( uni );
 642
 643     ansi->Length = len - 1;
 644     if (doalloc)
 645     {
 646         ansi->MaximumLength = len;
 647         if (!(ansi->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
 648             return STATUS_NO_MEMORY;
 649     }
 650     else if (ansi->MaximumLength < len)
 651     {
 652         if (!ansi->MaximumLength) return STATUS_BUFFER_OVERFLOW;
 653         ansi->Length = ansi->MaximumLength - 1;
 654         ret = STATUS_BUFFER_OVERFLOW;
 655     }
 656
 657     RtlUnicodeToMultiByteN( ansi->Buffer, ansi->Length, NULL, uni->Buffer, uni->Length );
 658     ansi->Buffer[ansi->Length] = 0;
 659     return ret;
 660 }
 661
 662
 663 /**************************************************************************
 664  *      RtlUnicodeStringToOemString   (NTDLL.@)
 665  *
 666  * Converts a Rtl Unicode string to an OEM string.
 667  *
 668  * PARAMS
 669  *  oem     [O] Destination for OEM string
 670  *  uni     [I] Source Unicode string
 671  *  doalloc [I] TRUE=Allocate new buffer for oem,FALSE=Use existing buffer
 672  *
 673  * RETURNS
 674  *  Success: STATUS_SUCCESS. oem contains the converted string
 675  *  Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and oem is too small.
 676  *           STATUS_NO_MEMORY, if doalloc is TRUE and allocation fails.
 677  *
 678  * NOTES
 679  *   If doalloc is TRUE, the length allocated is uni->Length + 1.
 680  *   This function always '\0' terminates the string returned.
 681  */
 682 NTSTATUS WINAPI RtlUnicodeStringToOemString( STRING *oem,
 683                                              const UNICODE_STRING *uni,
 684                                              BOOLEAN doalloc )
 685 {
 686     NTSTATUS ret = STATUS_SUCCESS;
 687     DWORD len = RtlUnicodeStringToOemSize( uni );
 688
 689     oem->Length = len - 1;
 690     if (doalloc)
 691     {
 692         oem->MaximumLength = len;
 693         if (!(oem->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
 694             return STATUS_NO_MEMORY;
 695     }
 696     else if (oem->MaximumLength < len)
 697     {
 698         if (!oem->MaximumLength) return STATUS_BUFFER_OVERFLOW;
 699         oem->Length = oem->MaximumLength - 1;
 700         ret = STATUS_BUFFER_OVERFLOW;
 701     }
 702
 703     RtlUnicodeToOemN( oem->Buffer, oem->Length, NULL, uni->Buffer, uni->Length );
 704     oem->Buffer[oem->Length] = 0;
 705     return ret;
 706 }
 707
 708
 709 /*
 710      CASE CONVERSIONS
 711 */
 712
 713
 714 /**************************************************************************
 715  *      RtlUpperChar   (NTDLL.@)
 716  *
 717  * Converts an Ascii character to uppercase.
 718  *
 719  * PARAMS
 720  *  ch [I] Character to convert
 721  *
 722  * RETURNS
 723  *  The uppercase character value.
 724  *
 725  * NOTES
 726  *  For the input characters from 'a' .. 'z' it returns 'A' .. 'Z'.
 727  *  All other input characters are returned unchanged. The locale and
 728  *  multibyte characters are not taken into account (as native DLL).
 729  */
 730 CHAR WINAPI RtlUpperChar( CHAR ch )
 731 {
 732     if (ch >= 'a' && ch <= 'z') {
 733         return ch - 'a' + 'A';
 734     } else {
 735         return ch;
 736     } /* if */
 737 }
 738
 739
 740 /**************************************************************************
 741  *      RtlUpperString   (NTDLL.@)
 742  *
 743  * Converts an Ascii string to uppercase.
 744  *
 745  * PARAMS
 746  *  dst [O] Destination for converted string
 747  *  src [I] Source string to convert
 748  *
 749  * RETURNS
 750  *  Nothing.
 751  *
 752  * NOTES
 753  *  For the src characters from 'a' .. 'z' it assigns 'A' .. 'Z' to dst.
 754  *  All other src characters are copied unchanged to dst. The locale and
 755  *  multibyte characters are not taken into account (as native DLL).
 756  *  The number of character copied is the minimum of src->Length and
 757  *  the dst->MaximumLength.
 758  */
 759 void WINAPI RtlUpperString( STRING *dst, const STRING *src )
 760 {
 761     unsigned int i, len = min(src->Length, dst->MaximumLength);
 762
 763     for (i = 0; i < len; i++) dst->Buffer[i] = RtlUpperChar(src->Buffer[i]);
 764     dst->Length = len;
 765 }
 766
 767
 768 /**************************************************************************
 769  *      RtlUpcaseUnicodeStringToAnsiString   (NTDLL.@)
 770  *
 771  * Converts a Unicode string to the equivalent ANSI upper-case representation.
 772  *
 773  * RETURNS
 774  *  NTSTATUS code
 775  *
 776  * NOTES
 777  *  writes terminating 0
 778  */
 779 NTSTATUS WINAPI RtlUpcaseUnicodeStringToAnsiString( STRING *ansi,
 780                                                     const UNICODE_STRING *uni,
 781                                                     BOOLEAN doalloc )
 782 {
 783     NTSTATUS ret = STATUS_SUCCESS;
 784     DWORD len = RtlUnicodeStringToAnsiSize( uni );
 785
 786     ansi->Length = len - 1;
 787     if (doalloc)
 788     {
 789         ansi->MaximumLength = len;
 790         if (!(ansi->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
 791             return STATUS_NO_MEMORY;
 792     }
 793     else if (ansi->MaximumLength < len)
 794     {
 795         if (!ansi->MaximumLength) return STATUS_BUFFER_OVERFLOW;
 796         ansi->Length = ansi->MaximumLength - 1;
 797         ret = STATUS_BUFFER_OVERFLOW;
 798     }
 799
 800     RtlUpcaseUnicodeToMultiByteN( ansi->Buffer, ansi->Length, NULL, uni->Buffer, uni->Length );
 801     ansi->Buffer[ansi->Length] = 0;
 802     return ret;
 803 }
 804
 805
 806 /**************************************************************************
 807  *      RtlUpcaseUnicodeStringToOemString   (NTDLL.@)
 808  *
 809  * Converts a UNICODE_STRING to the equivalent OEM upper-case representation
 810  * stored in STRING format.
 811  *
 812  * RETURNS
 813  *  NTSTATUS code
 814  *
 815  * NOTES
 816  *  writes terminating 0
 817  */
 818 NTSTATUS WINAPI RtlUpcaseUnicodeStringToOemString( STRING *oem,
 819                                                    const UNICODE_STRING *uni,
 820                                                    BOOLEAN doalloc )
 821 {
 822     NTSTATUS ret = STATUS_SUCCESS;
 823     DWORD len = RtlUnicodeStringToAnsiSize( uni );
 824
 825     oem->Length = len - 1;
 826     if (doalloc)
 827     {
 828         oem->MaximumLength = len;
 829         if (!(oem->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
 830             return STATUS_NO_MEMORY;
 831     }
 832     else if (oem->MaximumLength < len)
 833     {
 834         if (!oem->MaximumLength) return STATUS_BUFFER_OVERFLOW;
 835         oem->Length = oem->MaximumLength - 1;
 836         ret = STATUS_BUFFER_OVERFLOW;
 837     }
 838
 839     RtlUpcaseUnicodeToOemN( oem->Buffer, oem->Length, NULL, uni->Buffer, uni->Length );
 840     oem->Buffer[oem->Length] = 0;
 841     return ret;
 842 }
 843
 844
 845 /**************************************************************************
 846  *      RtlUpcaseUnicodeStringToCountedOemString   (NTDLL.@)
 847  *
 848  * Converts a UNICODE_STRING to the equivalent OEM upper-case representation
 849  * stored in STRING format.
 850  *
 851  * RETURNS
 852  *  NTSTATUS code
 853  *
 854  * NOTES
 855  *  Same as RtlUpcaseUnicodeStringToOemString but doesn't write terminating null
 856  */
 857 NTSTATUS WINAPI RtlUpcaseUnicodeStringToCountedOemString( STRING *oem,
 858                                                           const UNICODE_STRING *uni,
 859                                                           BOOLEAN doalloc )
 860 {
 861     NTSTATUS ret = STATUS_SUCCESS;
 862     DWORD len = RtlUnicodeStringToOemSize( uni ) - 1;
 863
 864     oem->Length = len;
 865     if (doalloc)
 866     {
 867         oem->MaximumLength = len;
 868         if (!(oem->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len ))) return STATUS_NO_MEMORY;
 869     }
 870     else if (oem->MaximumLength < len)
 871     {
 872         ret = STATUS_BUFFER_OVERFLOW;
 873         oem->Length = oem->MaximumLength;
 874         if (!oem->MaximumLength) return ret;
 875     }
 876     RtlUpcaseUnicodeToOemN( oem->Buffer, oem->Length, NULL, uni->Buffer, uni->Length );
 877     return ret;
 878 }
 879
 880
 881 /*
 882         STRING SIZE
 883 */
 884
 885
 886 /**************************************************************************
 887  *      RtlAnsiStringToUnicodeSize   (NTDLL.@)
 888  *      RtlxAnsiStringToUnicodeSize  (NTDLL.@)
 889  *
 890  * Calculate the size in bytes necessary for the Unicode conversion of str,
 891  * including the terminating '\0'.
 892  *
 893  * PARAMS
 894  *  str [I] String to calculate the size of
 895  *
 896  * RETURNS
 897  *  The calculated size.
 898  */
 899 DWORD WINAPI RtlAnsiStringToUnicodeSize( const STRING *str )
 900 {
 901     DWORD ret;
 902     RtlMultiByteToUnicodeSize( &ret, str->Buffer, str->Length );
 903     return ret + sizeof(WCHAR);
 904 }
 905
 906
 907 /**************************************************************************
 908  *      RtlUnicodeStringToAnsiSize   (NTDLL.@)
 909  *      RtlxUnicodeStringToAnsiSize  (NTDLL.@)
 910  *
 911  * Calculate the size in bytes necessary for the Ansi conversion of str,
 912  * including the terminating '\0'.
 913  *
 914  * PARAMS
 915  *  str [I] String to calculate the size of
 916  *
 917  * RETURNS
 918  *  The calculated size.
 919  */
 920 DWORD WINAPI RtlUnicodeStringToAnsiSize( const UNICODE_STRING *str )
 921 {
 922     DWORD ret;
 923     RtlUnicodeToMultiByteSize( &ret, str->Buffer, str->Length );
 924     return ret + 1;
 925 }
 926
 927
 928 /**************************************************************************
 929  *      RtlAppendAsciizToString   (NTDLL.@)
 930  *
 931  * Concatenates a buffered character string and a '\0' terminated character
 932  * string
 933  *
 934  * RETURNS
 935  *  Success: STATUS_SUCCESS. src is appended to dest.
 936  *  Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
 937  *                  to hold the concatenated string.
 938  *
 939  * NOTES
 940  *  if src is NULL dest is unchanged.
 941  *  dest is never '\0' terminated.
 942  */
 943 NTSTATUS WINAPI RtlAppendAsciizToString(
 944     STRING *dest, /* [I/O] Buffered character string to which src is concatenated */
 945     LPCSTR src)   /* [I]   '\0' terminated character string to be concatenated */
 946 {
 947     if (src != NULL) {
 948         unsigned int src_len = strlen(src);
 949         unsigned int dest_len  = src_len + dest->Length;
 950
 951         if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
 952         memcpy(dest->Buffer + dest->Length, src, src_len);
 953         dest->Length = dest_len;
 954     } /* if */
 955     return STATUS_SUCCESS;
 956 }
 957
 958
 959 /**************************************************************************
 960  *      RtlAppendStringToString   (NTDLL.@)
 961  *
 962  * Concatenates two buffered character strings
 963  *
 964  * RETURNS
 965  *  Success: STATUS_SUCCESS. src is appended to dest.
 966  *  Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
 967  *                  to hold the concatenated string.
 968  *
 969  * NOTES
 970  *  if src->length is zero dest is unchanged.
 971  *  dest is never '\0' terminated.
 972  */
 973 NTSTATUS WINAPI RtlAppendStringToString(
 974     STRING *dest,       /* [I/O] Buffered character string to which src is concatenated */
 975     const STRING *src)  /* [I]   Buffered character string to be concatenated */
 976 {
 977     if (src->Length != 0) {
 978         unsigned int dest_len = src->Length + dest->Length;
 979
 980         if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
 981         memcpy(dest->Buffer + dest->Length, src->Buffer, src->Length);
 982         dest->Length = dest_len;
 983     } /* if */
 984     return STATUS_SUCCESS;
 985 }
 986
 987
 988 /**************************************************************************
 989  *      RtlAppendUnicodeToString   (NTDLL.@)
 990  *
 991  * Concatenates a buffered unicode string and a '\0' terminated unicode
 992  * string
 993  *
 994  * RETURNS
 995  *  Success: STATUS_SUCCESS. src is appended to dest.
 996  *  Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
 997  *                  to hold the concatenated string.
 998  *
 999  * NOTES
1000  *  if src is NULL dest is unchanged.
1001  *  dest is '\0' terminated when the MaximumLength allows it.
1002  *  When dest fits exactly in MaximumLength characters the '\0' is omitted.
1003  *
1004  * DIFFERENCES
1005  *  Does not write in the src->Buffer beyond MaximumLength when
1006  *  MaximumLength is odd as the native function does.
1007  */
1008 NTSTATUS WINAPI RtlAppendUnicodeToString(
1009     UNICODE_STRING *dest, /* [I/O] Buffered unicode string to which src is concatenated */
1010     LPCWSTR src)          /* [I]   '\0' terminated unicode string to be concatenated */
1011 {
1012     if (src != NULL) {
1013         unsigned int src_len = wcslen(src) * sizeof(WCHAR);
1014         unsigned int dest_len  = src_len + dest->Length;
1015
1016         if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
1017         memcpy(dest->Buffer + dest->Length/sizeof(WCHAR), src, src_len);
1018         dest->Length = dest_len;
1019         /* append terminating '\0' if enough space */
1020         if (dest_len + sizeof(WCHAR) <= dest->MaximumLength) {
1021             dest->Buffer[dest_len / sizeof(WCHAR)] = 0;
1022         } /* if */
1023     } /* if */
1024     return STATUS_SUCCESS;
1025 }
1026
1027
1028 /**************************************************************************
1029  *      RtlAppendUnicodeStringToString   (NTDLL.@)
1030  *
1031  * Concatenates two buffered unicode strings
1032  *
1033  * RETURNS
1034  *  Success: STATUS_SUCCESS. src is appended to dest.
1035  *  Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
1036  *                  to hold the concatenated string.
1037  *
1038  * NOTES
1039  *  if src->length is zero dest is unchanged.
1040  *  dest is '\0' terminated when the MaximumLength allows it.
1041  *  When dest fits exactly in MaximumLength characters the '\0' is omitted.
1042  *
1043  * DIFFERENCES
1044  *  Does not write in the src->Buffer beyond MaximumLength when
1045  *  MaximumLength is odd as the native function does.
1046  */
1047 NTSTATUS WINAPI RtlAppendUnicodeStringToString(
1048     UNICODE_STRING *dest,      /* [I/O] Buffered unicode string to which src is concatenated */
1049     const UNICODE_STRING *src) /* [I]   Buffered unicode string to be concatenated */
1050 {
1051     if (src->Length != 0) {
1052         unsigned int dest_len = src->Length + dest->Length;
1053
1054         if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
1055         memcpy(dest->Buffer + dest->Length/sizeof(WCHAR), src->Buffer, src->Length);
1056         dest->Length = dest_len;
1057         /* append terminating '\0' if enough space */
1058         if (dest_len + sizeof(WCHAR) <= dest->MaximumLength) {
1059             dest->Buffer[dest_len / sizeof(WCHAR)] = 0;
1060         } /* if */
1061     } /* if */
1062     return STATUS_SUCCESS;
1063 }
1064
1065
1066 /**************************************************************************
1067  *      RtlFindCharInUnicodeString   (NTDLL.@)
1068  *
1069  * Searches for one of several unicode characters in a unicode string.
1070  *
1071  * RETURNS
1072  *  Success: STATUS_SUCCESS. pos contains the position after the character found.
1073  *  Failure: STATUS_NOT_FOUND, if none of the search_chars are in main_str.
1074  */
1075 NTSTATUS WINAPI RtlFindCharInUnicodeString(
1076     int flags,                          /* [I] Flags */
1077     const UNICODE_STRING *main_str,     /* [I] Unicode string in which one or more characters are searched */
1078     const UNICODE_STRING *search_chars, /* [I] Unicode string which contains the characters to search for */
1079     USHORT *pos)                        /* [O] Position of the first character found + 2 */
1080 {
1081     unsigned int main_idx, search_idx;
1082
1083     switch (flags) {
1084         case 0:
1085             for (main_idx = 0; main_idx < main_str->Length / sizeof(WCHAR); main_idx++) {
1086                 for (search_idx = 0; search_idx < search_chars->Length / sizeof(WCHAR); search_idx++) {
1087                     if (main_str->Buffer[main_idx] == search_chars->Buffer[search_idx]) {
1088                         *pos = (main_idx + 1) * sizeof(WCHAR);
1089                         return STATUS_SUCCESS;
1090                     }
1091                 }
1092             }
1093             *pos = 0;
1094             return STATUS_NOT_FOUND;
1095         case 1:
1096             main_idx = main_str->Length / sizeof(WCHAR);
1097             while (main_idx-- > 0) {
1098                 for (search_idx = 0; search_idx < search_chars->Length / sizeof(WCHAR); search_idx++) {
1099                     if (main_str->Buffer[main_idx] == search_chars->Buffer[search_idx]) {
1100                         *pos = main_idx * sizeof(WCHAR);
1101                         return STATUS_SUCCESS;
1102                     }
1103                 }
1104             }
1105             *pos = 0;
1106             return STATUS_NOT_FOUND;
1107         case 2:
1108             for (main_idx = 0; main_idx < main_str->Length / sizeof(WCHAR); main_idx++) {
1109                 search_idx = 0;
1110                 while (search_idx < search_chars->Length / sizeof(WCHAR) &&
1111                          main_str->Buffer[main_idx] != search_chars->Buffer[search_idx]) {
1112                     search_idx++;
1113                 }
1114                 if (search_idx >= search_chars->Length / sizeof(WCHAR)) {
1115                     *pos = (main_idx + 1) * sizeof(WCHAR);
1116                     return STATUS_SUCCESS;
1117                 }
1118             }
1119             *pos = 0;
1120             return STATUS_NOT_FOUND;
1121         case 3:
1122             main_idx = main_str->Length / sizeof(WCHAR);
1123             while (main_idx-- > 0) {
1124                 search_idx = 0;
1125                 while (search_idx < search_chars->Length / sizeof(WCHAR) &&
1126                          main_str->Buffer[main_idx] != search_chars->Buffer[search_idx]) {
1127                     search_idx++;
1128                 }
1129                 if (search_idx >= search_chars->Length / sizeof(WCHAR)) {
1130                     *pos = main_idx * sizeof(WCHAR);
1131                     return STATUS_SUCCESS;
1132                 }
1133             }
1134             *pos = 0;
1135             return STATUS_NOT_FOUND;
1136     } /* switch */
1137     return STATUS_NOT_FOUND;
1138 }
1139
1140
1141 /*
1142         MISC
1143 */
1144
1145 /**************************************************************************
1146  *      RtlIsTextUnicode (NTDLL.@)
1147  *
1148  * Attempt to guess whether a text buffer is Unicode.
1149  *
1150  * PARAMS
1151  *  buf [I] Text buffer to test
1152  *  len [I] Length of buf
1153  *  pf  [O] Destination for test results
1154  *
1155  * RETURNS
1156  *  TRUE if the buffer is likely Unicode, FALSE otherwise.
1157  *
1158  * FIXME
1159  *  Should implement more tests.
1160  */
1161 BOOLEAN WINAPI RtlIsTextUnicode( LPCVOID buf, INT len, INT *pf )
1162 {
1163     const WCHAR *s = buf;
1164     int i;
1165     unsigned int flags = ~0U, out_flags = 0;
1166
1167     if (len < sizeof(WCHAR))
1168     {
1169         /* FIXME: MSDN documents IS_TEXT_UNICODE_BUFFER_TOO_SMALL but there is no such thing... */
1170         if (pf) *pf = 0;
1171         return FALSE;
1172     }
1173     if (pf)
1174         flags = *pf;
1175     /*
1176      * Apply various tests to the text string. According to the
1177      * docs, each test "passed" sets the corresponding flag in
1178      * the output flags. But some of the tests are mutually
1179      * exclusive, so I don't see how you could pass all tests ...
1180      */
1181
1182     /* Check for an odd length ... pass if even. */
1183     if (len & 1) out_flags |= IS_TEXT_UNICODE_ODD_LENGTH;
1184
1185     if (((const char *)buf)[len - 1] == 0)
1186         len--;  /* Windows seems to do something like that to avoid e.g. false IS_TEXT_UNICODE_NULL_BYTES  */
1187
1188     len /= sizeof(WCHAR);
1189     /* Windows only checks the first 256 characters */
1190     if (len > 256) len = 256;
1191
1192     /* Check for the special byte order unicode marks. */
1193     if (*s == 0xFEFF) out_flags |= IS_TEXT_UNICODE_SIGNATURE;
1194     if (*s == 0xFFFE) out_flags |= IS_TEXT_UNICODE_REVERSE_SIGNATURE;
1195
1196     /* apply some statistical analysis */
1197     if (flags & IS_TEXT_UNICODE_STATISTICS)
1198     {
1199         int stats = 0;
1200         /* FIXME: checks only for ASCII characters in the unicode stream */
1201         for (i = 0; i < len; i++)
1202         {
1203             if (s[i] <= 255) stats++;
1204         }
1205         if (stats > len / 2)
1206             out_flags |= IS_TEXT_UNICODE_STATISTICS;
1207     }
1208
1209     /* Check for unicode NULL chars */
1210     if (flags & IS_TEXT_UNICODE_NULL_BYTES)
1211     {
1212         for (i = 0; i < len; i++)
1213         {
1214             if (!(s[i] & 0xff) || !(s[i] >> 8))
1215             {
1216                 out_flags |= IS_TEXT_UNICODE_NULL_BYTES;
1217                 break;
1218             }
1219         }
1220     }
1221
1222     if (flags & IS_TEXT_UNICODE_CONTROLS)
1223     {
1224         for (i = 0; i < len; i++)
1225         {
1226             if (wcschr(L"\r\n\t \x3000", s[i]))
1227             {
1228                 out_flags |= IS_TEXT_UNICODE_CONTROLS;
1229                 break;
1230             }
1231         }
1232     }
1233
1234     if (flags & IS_TEXT_UNICODE_REVERSE_CONTROLS)
1235     {
1236         for (i = 0; i < len; i++)
1237         {
1238             if (wcschr(L"\x0d00\x0a00\x0900\x2000", s[i]))
1239             {
1240                 out_flags |= IS_TEXT_UNICODE_REVERSE_CONTROLS;
1241                 break;
1242             }
1243         }
1244     }
1245
1246     if (pf)
1247     {
1248         out_flags &= *pf;
1249         *pf = out_flags;
1250     }
1251     /* check for flags that indicate it's definitely not valid Unicode */
1252     if (out_flags & (IS_TEXT_UNICODE_REVERSE_MASK | IS_TEXT_UNICODE_NOT_UNICODE_MASK)) return FALSE;
1253     /* now check for invalid ASCII, and assume Unicode if so */
1254     if (out_flags & IS_TEXT_UNICODE_NOT_ASCII_MASK) return TRUE;
1255     /* now check for Unicode flags */
1256     if (out_flags & IS_TEXT_UNICODE_UNICODE_MASK) return TRUE;
1257     /* no flags set */
1258     return FALSE;
1259 }
1260
1261
1262 /**************************************************************************
1263  *      RtlCharToInteger   (NTDLL.@)
1264  *
1265  * Converts a character string into its integer equivalent.
1266  *
1267  * RETURNS
1268  *  Success: STATUS_SUCCESS. value contains the converted number
1269  *  Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
1270  *           STATUS_ACCESS_VIOLATION, if value is NULL.
1271  *
1272  * NOTES
1273  *  For base 0 it uses 10 as base and the string should be in the format
1274  *      "{whitespace} [+|-] [0[x|o|b]] {digits}".
1275  *  For other bases the string should be in the format
1276  *      "{whitespace} [+|-] {digits}".
1277  *  No check is made for value overflow, only the lower 32 bits are assigned.
1278  *  If str is NULL it crashes, as the native function does.
1279  *
1280  * DIFFERENCES
1281  *  This function does not read garbage behind '\0' as the native version does.
1282  */
1283 NTSTATUS WINAPI RtlCharToInteger(
1284     PCSZ str,      /* [I] '\0' terminated single-byte string containing a number */
1285     ULONG base,    /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
1286     ULONG *value)  /* [O] Destination for the converted value */
1287 {
1288     CHAR chCurrent;
1289     int digit;
1290     ULONG RunningTotal = 0;
1291     BOOL bMinus = FALSE;
1292
1293     while (*str != '\0' && *str <= ' ') {
1294         str++;
1295     } /* while */
1296
1297     if (*str == '+') {
1298         str++;
1299     } else if (*str == '-') {
1300         bMinus = TRUE;
1301         str++;
1302     } /* if */
1303
1304     if (base == 0) {
1305         base = 10;
1306         if (str[0] == '0') {
1307             if (str[1] == 'b') {
1308                 str += 2;
1309                 base = 2;
1310             } else if (str[1] == 'o') {
1311                 str += 2;
1312                 base = 8;
1313             } else if (str[1] == 'x') {
1314                 str += 2;
1315                 base = 16;
1316             } /* if */
1317         } /* if */
1318     } else if (base != 2 && base != 8 && base != 10 && base != 16) {
1319         return STATUS_INVALID_PARAMETER;
1320     } /* if */
1321
1322     if (value == NULL) {
1323         return STATUS_ACCESS_VIOLATION;
1324     } /* if */
1325
1326     while (*str != '\0') {
1327         chCurrent = *str;
1328         if (chCurrent >= '0' && chCurrent <= '9') {
1329             digit = chCurrent - '0';
1330         } else if (chCurrent >= 'A' && chCurrent <= 'Z') {
1331             digit = chCurrent - 'A' + 10;
1332         } else if (chCurrent >= 'a' && chCurrent <= 'z') {
1333             digit = chCurrent - 'a' + 10;
1334         } else {
1335             digit = -1;
1336         } /* if */
1337         if (digit < 0 || digit >= base) {
1338             *value = bMinus ? -RunningTotal : RunningTotal;
1339             return STATUS_SUCCESS;
1340         } /* if */
1341
1342         RunningTotal = RunningTotal * base + digit;
1343         str++;
1344     } /* while */
1345
1346     *value = bMinus ? -RunningTotal : RunningTotal;
1347     return STATUS_SUCCESS;
1348 }
1349
1350
1351 /**************************************************************************
1352  *      RtlIntegerToChar   (NTDLL.@)
1353  *
1354  * Converts an unsigned integer to a character string.
1355  *
1356  * RETURNS
1357  *  Success: STATUS_SUCCESS. str contains the converted number
1358  *  Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
1359  *           STATUS_BUFFER_OVERFLOW, if str would be larger than length.
1360  *           STATUS_ACCESS_VIOLATION, if str is NULL.
1361  *
1362  * NOTES
1363  *  Instead of base 0 it uses 10 as base.
1364  *  Writes at most length characters to the string str.
1365  *  Str is '\0' terminated when length allows it.
1366  *  When str fits exactly in length characters the '\0' is omitted.
1367  */
1368 NTSTATUS WINAPI RtlIntegerToChar(
1369     ULONG value,   /* [I] Value to be converted */
1370     ULONG base,    /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
1371     ULONG length,  /* [I] Length of the str buffer in bytes */
1372     PCHAR str)     /* [O] Destination for the converted value */
1373 {
1374     CHAR buffer[33];
1375     PCHAR pos;
1376     CHAR digit;
1377     ULONG len;
1378
1379     if (base == 0) {
1380         base = 10;
1381     } else if (base != 2 && base != 8 && base != 10 && base != 16) {
1382         return STATUS_INVALID_PARAMETER;
1383     } /* if */
1384
1385     pos = &buffer[32];
1386     *pos = '\0';
1387
1388     do {
1389         pos--;
1390         digit = value % base;
1391         value = value / base;
1392         if (digit < 10) {
1393             *pos = '0' + digit;
1394         } else {
1395             *pos = 'A' + digit - 10;
1396         } /* if */
1397     } while (value != 0L);
1398
1399     len = &buffer[32] - pos;
1400     if (len > length) {
1401         return STATUS_BUFFER_OVERFLOW;
1402     } else if (str == NULL) {
1403         return STATUS_ACCESS_VIOLATION;
1404     } else if (len == length) {
1405         memcpy(str, pos, len);
1406     } else {
1407         memcpy(str, pos, len + 1);
1408     } /* if */
1409     return STATUS_SUCCESS;
1410 }
1411
1412
1413 /**************************************************************************
1414  *      RtlUnicodeStringToInteger (NTDLL.@)
1415  *
1416  * Converts a unicode string into its integer equivalent.
1417  *
1418  * RETURNS
1419  *  Success: STATUS_SUCCESS. value contains the converted number
1420  *  Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
1421  *           STATUS_ACCESS_VIOLATION, if value is NULL.
1422  *
1423  * NOTES
1424  *  For base 0 it uses 10 as base and the string should be in the format
1425  *      "{whitespace} [+|-] [0[x|o|b]] {digits}".
1426  *  For other bases the string should be in the format
1427  *      "{whitespace} [+|-] {digits}".
1428  *  No check is made for value overflow, only the lower 32 bits are assigned.
1429  *  If str is NULL it crashes, as the native function does.
1430  *
1431  * DIFFERENCES
1432  *  This function does not read garbage on string length 0 as the native
1433  *  version does.
1434  */
1435 NTSTATUS WINAPI RtlUnicodeStringToInteger(
1436     const UNICODE_STRING *str, /* [I] Unicode string to be converted */
1437     ULONG base,                /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
1438     ULONG *value)              /* [O] Destination for the converted value */
1439 {
1440     LPWSTR lpwstr = str->Buffer;
1441     USHORT CharsRemaining = str->Length / sizeof(WCHAR);
1442     WCHAR wchCurrent;
1443     int digit;
1444     ULONG RunningTotal = 0;
1445     BOOL bMinus = FALSE;
1446
1447     while (CharsRemaining >= 1 && *lpwstr <= ' ') {
1448         lpwstr++;
1449         CharsRemaining--;
1450     } /* while */
1451
1452     if (CharsRemaining >= 1) {
1453         if (*lpwstr == '+') {
1454             lpwstr++;
1455             CharsRemaining--;
1456         } else if (*lpwstr == '-') {
1457             bMinus = TRUE;
1458             lpwstr++;
1459             CharsRemaining--;
1460         } /* if */
1461     } /* if */
1462
1463     if (base == 0) {
1464         base = 10;
1465         if (CharsRemaining >= 2 && lpwstr[0] == '0') {
1466             if (lpwstr[1] == 'b') {
1467                 lpwstr += 2;
1468                 CharsRemaining -= 2;
1469                 base = 2;
1470             } else if (lpwstr[1] == 'o') {
1471                 lpwstr += 2;
1472                 CharsRemaining -= 2;
1473                 base = 8;
1474             } else if (lpwstr[1] == 'x') {
1475                 lpwstr += 2;
1476                 CharsRemaining -= 2;
1477                 base = 16;
1478             } /* if */
1479         } /* if */
1480     } else if (base != 2 && base != 8 && base != 10 && base != 16) {
1481         return STATUS_INVALID_PARAMETER;
1482     } /* if */
1483
1484     if (value == NULL) {
1485         return STATUS_ACCESS_VIOLATION;
1486     } /* if */
1487
1488     while (CharsRemaining >= 1) {
1489         wchCurrent = *lpwstr;
1490         if (wchCurrent >= '0' && wchCurrent <= '9') {
1491             digit = wchCurrent - '0';
1492         } else if (wchCurrent >= 'A' && wchCurrent <= 'Z') {
1493             digit = wchCurrent - 'A' + 10;
1494         } else if (wchCurrent >= 'a' && wchCurrent <= 'z') {
1495             digit = wchCurrent - 'a' + 10;
1496         } else {
1497             digit = -1;
1498         } /* if */
1499         if (digit < 0 || digit >= base) {
1500             *value = bMinus ? -RunningTotal : RunningTotal;
1501             return STATUS_SUCCESS;
1502         } /* if */
1503
1504         RunningTotal = RunningTotal * base + digit;
1505         lpwstr++;
1506         CharsRemaining--;
1507     } /* while */
1508
1509     *value = bMinus ? -RunningTotal : RunningTotal;
1510     return STATUS_SUCCESS;
1511 }
1512
1513
1514 /**************************************************************************
1515  *      RtlIntegerToUnicodeString (NTDLL.@)
1516  *
1517  * Converts an unsigned integer to a '\0' terminated unicode string.
1518  *
1519  * RETURNS
1520  *  Success: STATUS_SUCCESS. str contains the converted number
1521  *  Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
1522  *           STATUS_BUFFER_OVERFLOW, if str is too small to hold the string
1523  *                  (with the '\0' termination). In this case str->Length
1524  *                  is set to the length, the string would have (which can
1525  *                  be larger than the MaximumLength).
1526  *
1527  * NOTES
1528  *  Instead of base 0 it uses 10 as base.
1529  *  If str is NULL it crashes, as the native function does.
1530  *
1531  * DIFFERENCES
1532  *  Do not return STATUS_BUFFER_OVERFLOW when the string is long enough.
1533  *  The native function does this when the string would be longer than 16
1534  *  characters even when the string parameter is long enough.
1535  */
1536 NTSTATUS WINAPI RtlIntegerToUnicodeString(
1537     ULONG value,         /* [I] Value to be converted */
1538     ULONG base,          /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
1539     UNICODE_STRING *str) /* [O] Destination for the converted value */
1540 {
1541     WCHAR buffer[33];
1542     PWCHAR pos;
1543     WCHAR digit;
1544
1545     if (base == 0) {
1546         base = 10;
1547     } else if (base != 2 && base != 8 && base != 10 && base != 16) {
1548         return STATUS_INVALID_PARAMETER;
1549     } /* if */
1550
1551     pos = &buffer[32];
1552     *pos = '\0';
1553
1554     do {
1555         pos--;
1556         digit = value % base;
1557         value = value / base;
1558         if (digit < 10) {
1559             *pos = '0' + digit;
1560         } else {
1561             *pos = 'A' + digit - 10;
1562         } /* if */
1563     } while (value != 0L);
1564
1565     str->Length = (&buffer[32] - pos) * sizeof(WCHAR);
1566     if (str->Length >= str->MaximumLength) {
1567         return STATUS_BUFFER_OVERFLOW;
1568     } else {
1569         memcpy(str->Buffer, pos, str->Length + sizeof(WCHAR));
1570     } /* if */
1571     return STATUS_SUCCESS;
1572 }
1573
1574
1575 /*************************************************************************
1576  * RtlGUIDFromString (NTDLL.@)
1577  *
1578  * Convert a string representation of a GUID into a GUID.
1579  *
1580  * PARAMS
1581  *  str  [I] String representation in the format "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}"
1582  *  guid [O] Destination for the converted GUID
1583  *
1584  * RETURNS
1585  *  Success: STATUS_SUCCESS. guid contains the converted value.
1586  *  Failure: STATUS_INVALID_PARAMETER, if str is not in the expected format.
1587  *
1588  * SEE ALSO
1589  *  See RtlStringFromGUID.
1590  */
1591 NTSTATUS WINAPI RtlGUIDFromString(PUNICODE_STRING str, GUID* guid)
1592 {
1593   int i = 0;
1594   const WCHAR *lpszCLSID = str->Buffer;
1595   BYTE* lpOut = (BYTE*)guid;
1596
1597   TRACE("(%s,%p)\n", debugstr_us(str), guid);
1598
1599   /* Convert string: {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}
1600    * to memory:       DWORD... WORD WORD BYTES............
1601    */
1602   while (i <= 37)
1603   {
1604     switch (i)
1605     {
1606     case 0:
1607       if (*lpszCLSID != '{')
1608         return STATUS_INVALID_PARAMETER;
1609       break;
1610
1611     case 9: case 14: case 19: case 24:
1612       if (*lpszCLSID != '-')
1613         return STATUS_INVALID_PARAMETER;
1614       break;
1615
1616     case 37:
1617       if (*lpszCLSID != '}')
1618         return STATUS_INVALID_PARAMETER;
1619       break;
1620
1621     default:
1622       {
1623         WCHAR ch = *lpszCLSID, ch2 = lpszCLSID[1];
1624         unsigned char byte;
1625
1626         /* Read two hex digits as a byte value */
1627         if      (ch >= '0' && ch <= '9') ch = ch - '0';
1628         else if (ch >= 'a' && ch <= 'f') ch = ch - 'a' + 10;
1629         else if (ch >= 'A' && ch <= 'F') ch = ch - 'A' + 10;
1630         else return STATUS_INVALID_PARAMETER;
1631
1632         if      (ch2 >= '0' && ch2 <= '9') ch2 = ch2 - '0';
1633         else if (ch2 >= 'a' && ch2 <= 'f') ch2 = ch2 - 'a' + 10;
1634         else if (ch2 >= 'A' && ch2 <= 'F') ch2 = ch2 - 'A' + 10;
1635         else return STATUS_INVALID_PARAMETER;
1636
1637         byte = ch << 4 | ch2;
1638
1639         switch (i)
1640         {
1641 #ifndef WORDS_BIGENDIAN
1642         /* For Big Endian machines, we store the data such that the
1643          * dword/word members can be read as DWORDS and WORDS correctly. */
1644         /* Dword */
1645         case 1:  lpOut[3] = byte; break;
1646         case 3:  lpOut[2] = byte; break;
1647         case 5:  lpOut[1] = byte; break;
1648         case 7:  lpOut[0] = byte; lpOut += 4;  break;
1649         /* Word */
1650         case 10: case 15: lpOut[1] = byte; break;
1651         case 12: case 17: lpOut[0] = byte; lpOut += 2; break;
1652 #endif
1653         /* Byte */
1654         default: lpOut[0] = byte; lpOut++; break;
1655         }
1656         lpszCLSID++; /* Skip 2nd character of byte */
1657         i++;
1658       }
1659     }
1660     lpszCLSID++;
1661     i++;
1662   }
1663
1664   return STATUS_SUCCESS;
1665 }
1666
1667 /*************************************************************************
1668  * RtlStringFromGUID (NTDLL.@)
1669  *
1670  * Convert a GUID into a string representation of a GUID.
1671  *
1672  * PARAMS
1673  *  guid [I] GUID to convert
1674  *  str  [O] Destination for the converted string
1675  *
1676  * RETURNS
1677  *  Success: STATUS_SUCCESS. str contains the converted value.
1678  *  Failure: STATUS_NO_MEMORY, if memory for str cannot be allocated.
1679  *
1680  * SEE ALSO
1681  *  See RtlGUIDFromString.
1682  */
1683 NTSTATUS WINAPI RtlStringFromGUID(const GUID* guid, UNICODE_STRING *str)
1684 {
1685   TRACE("(%p,%p)\n", guid, str);
1686
1687   str->Length = GUID_STRING_LENGTH * sizeof(WCHAR);
1688   str->MaximumLength = str->Length + sizeof(WCHAR);
1689   str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, str->MaximumLength);
1690   if (!str->Buffer)
1691   {
1692     str->Length = str->MaximumLength = 0;
1693     return STATUS_NO_MEMORY;
1694   }
1695   swprintf(str->Buffer, str->MaximumLength/sizeof(WCHAR),
1696           L"{%08lX-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}", guid->Data1, guid->Data2, guid->Data3,
1697           guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
1698           guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
1699
1700   return STATUS_SUCCESS;
1701 }
1702
1703
1704 /***********************************************************************
1705  * Message formatting
1706  ***********************************************************************/
1707
1708 struct format_message_args
1709 {
1710     int           last;         /* last used arg */
1711     ULONG_PTR    *array;        /* args array */
1712     va_list      *list;         /* args va_list */
1713     UINT64        arglist[102]; /* arguments fetched from va_list */
1714 };
1715
1716 static NTSTATUS add_chars( WCHAR **buffer, WCHAR *end, const WCHAR *str, ULONG len )
1717 {
1718     if (len > end - *buffer) return STATUS_BUFFER_OVERFLOW;
1719     memcpy( *buffer, str, len * sizeof(WCHAR) );
1720     *buffer += len;
1721     return STATUS_SUCCESS;
1722 }
1723
1724 static UINT64 get_arg( int nr, struct format_message_args *args_data, BOOL is64 )
1725 {
1726     if (nr == -1) nr = args_data->last + 1;
1727     while (nr > args_data->last)
1728         args_data->arglist[args_data->last++] = is64 ? va_arg( *args_data->list, UINT64 )
1729                                                      : va_arg( *args_data->list, ULONG_PTR );
1730     return args_data->arglist[nr - 1];
1731 }
1732
1733 static NTSTATUS add_format( WCHAR **buffer, WCHAR *end, const WCHAR **src, int insert, BOOLEAN ansi,
1734                             struct format_message_args *args_data )
1735 {
1736     const WCHAR *format = *src;
1737     WCHAR *p, fmt[32];
1738     ULONG_PTR args[5] = { 0 };
1739     BOOL is_64 = FALSE;
1740     UINT64 val;
1741     int len, stars = 0, nb_args = 0;
1742
1743     p = fmt;
1744     *p++ = '%';
1745
1746     if (*format++ == '!')
1747     {
1748         const WCHAR *end = wcschr( format, '!' );
1749
1750         if (!end || end - format > ARRAY_SIZE(fmt) - 2) return STATUS_INVALID_PARAMETER;
1751         *src = end + 1;
1752
1753         while (wcschr( L"0123456789 +-*#.", *format ))
1754         {
1755             if (*format == '*') stars++;
1756             *p++ = *format++;
1757         }
1758         if (stars > 2) return STATUS_INVALID_PARAMETER;
1759
1760         switch (*format)
1761         {
1762         case 'c': case 'C':
1763         case 's': case 'S':
1764             if (ansi) *p++ = *format++ ^ ('s' - 'S');
1765             break;
1766         case 'I':
1767             if (sizeof(void *) == sizeof(int) && format[1] == '6' && format[2] == '4') is_64 = TRUE;
1768             break;
1769         }
1770         while (format != end) *p++ = *format++;
1771     }
1772     else *p++ = ansi ? 'S' : 's'; /* simple string */
1773
1774     *p = 0;
1775     if (args_data->list)
1776     {
1777         get_arg( insert - 1, args_data, is_64 );  /* make sure previous args have been fetched */
1778         while (stars--)
1779         {
1780             args[nb_args++] = get_arg( insert, args_data, FALSE );
1781             insert = -1;
1782         }
1783         /* replicate MS bug: drop an argument when using va_list with width/precision */
1784         if (insert == -1) args_data->last--;
1785         val = get_arg( insert, args_data, is_64 );
1786         args[nb_args++] = val;
1787         args[nb_args] = val >> 32;
1788     }
1789     else if (args_data->array)
1790     {
1791         args[nb_args++] = args_data->array[insert - 1];
1792         if (args_data->last < insert) args_data->last = insert;
1793         /* replicate MS bug: first arg is considered 64-bit, even if it's actually width or precision */
1794         if (is_64) nb_args++;
1795         while (stars--) args[nb_args++] = args_data->array[args_data->last++];
1796     }
1797     else return STATUS_INVALID_PARAMETER;
1798
1799     len = _snwprintf_s( *buffer, end - *buffer, end - *buffer - 1, fmt,
1800                         args[0], args[1], args[2], args[3], args[4] );
1801     if (len == -1) return STATUS_BUFFER_OVERFLOW;
1802     *buffer += len;
1803     return STATUS_SUCCESS;
1804 }
1805
1806
1807 /**********************************************************************
1808  *      RtlFormatMessage  (NTDLL.@)
1809  */
1810 NTSTATUS WINAPI RtlFormatMessage( const WCHAR *src, ULONG width, BOOLEAN ignore_inserts,
1811                                   BOOLEAN ansi, BOOLEAN is_array, va_list *args,
1812                                   WCHAR *buffer, ULONG size, ULONG *retsize )
1813 {
1814     return RtlFormatMessageEx( src, width, ignore_inserts, ansi, is_array, args, buffer, size, retsize, 0 );
1815 }
1816
1817
1818 /**********************************************************************
1819  *      RtlFormatMessageEx  (NTDLL.@)
1820  */
1821 NTSTATUS WINAPI RtlFormatMessageEx( const WCHAR *src, ULONG width, BOOLEAN ignore_inserts,
1822                                     BOOLEAN ansi, BOOLEAN is_array, va_list *args,
1823                                     WCHAR *buffer, ULONG size, ULONG *retsize, ULONG flags )
1824 {
1825     static const WCHAR spaceW = ' ';
1826     static const WCHAR crW    = '\r';
1827     static const WCHAR tabW   = '\t';
1828     static const WCHAR crlfW[] = {'\r','\n'};
1829
1830     struct format_message_args args_data;
1831     NTSTATUS status = STATUS_SUCCESS;
1832
1833     WCHAR *start = buffer;                         /* start of buffer */
1834     WCHAR *end   = buffer + size / sizeof(WCHAR);  /* end of buffer */
1835     WCHAR *line  = buffer;                         /* start of last line */
1836     WCHAR *space = NULL;                           /* last space */
1837
1838     if (flags) FIXME( "%s unknown flags %lx\n", debugstr_w(src), flags );
1839
1840     args_data.last  = 0;
1841     args_data.array = is_array ? (ULONG_PTR *)args : NULL;
1842     args_data.list  = is_array ? NULL : args;
1843
1844     for ( ; *src; src++)
1845     {
1846         switch (*src)
1847         {
1848         case '\r':
1849             if (src[1] == '\n') src++;
1850             /* fall through */
1851         case '\n':
1852             if (!width)
1853             {
1854                 status = add_chars( &buffer, end, crlfW, 2 );
1855                 line = buffer;
1856                 space = NULL;
1857                 break;
1858             }
1859             /* fall through */
1860         case ' ':
1861             space = buffer;
1862             status = add_chars( &buffer, end, &spaceW, 1 );
1863             break;
1864         case '\t':
1865             if (space == buffer - 1) space = buffer;
1866             status = add_chars( &buffer, end, &tabW, 1 );
1867             break;
1868         case '%':
1869             src++;
1870             switch (*src)
1871             {
1872             case 0:
1873                 return STATUS_INVALID_PARAMETER;
1874             case 't':
1875                 if (!width)
1876                 {
1877                     status = add_chars( &buffer, end, &tabW, 1 );
1878                     break;
1879                 }
1880                 /* fall through */
1881             case 'n':
1882                 status = add_chars( &buffer, end, crlfW, 2 );
1883                 line = buffer;
1884                 space = NULL;
1885                 break;
1886             case 'r':
1887                 status = add_chars( &buffer, end, &crW, 1 );
1888                 line = buffer;
1889                 space = NULL;
1890                 break;
1891             case '0':
1892                 while (src[1]) src++;
1893                 break;
1894             case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
1895                 if (!ignore_inserts)
1896                 {
1897                     int nr = *src++ - '0';
1898
1899                     if (*src >= '0' && *src <= '9') nr = nr * 10 + *src++ - '0';
1900                     status = add_format( &buffer, end, &src, nr, ansi, &args_data );
1901                     src--;
1902                     break;
1903                 }
1904                 /* fall through */
1905             default:
1906                 if (ignore_inserts) status = add_chars( &buffer, end, src - 1, 2 );
1907                 else status = add_chars( &buffer, end, src, 1 );
1908                 break;
1909             }
1910             break;
1911         default:
1912             status = add_chars( &buffer, end, src, 1 );
1913             break;
1914         }
1915
1916         if (status) return status;
1917
1918         if (width && buffer - line >= width)
1919         {
1920             LONG_PTR diff = 2;
1921             WCHAR *next;
1922
1923             if (space)  /* split line at the last space */
1924             {
1925                 next = space + 1;
1926                 while (space > line && (space[-1] == ' ' || space[-1] == '\t')) space--;
1927                 diff -= next - space;
1928             }
1929             else space = next = buffer;  /* split at the end of the buffer */
1930
1931             if (diff > 0 && end - buffer < diff) return STATUS_BUFFER_OVERFLOW;
1932             memmove( space + 2, next, (buffer - next) * sizeof(WCHAR) );
1933             buffer += diff;
1934             memcpy( space, crlfW, sizeof(crlfW) );
1935             line = space + 2;
1936             space = NULL;
1937         }
1938     }
1939
1940     if ((status = add_chars( &buffer, end, L"", 1 ))) return status;
1941
1942     *retsize = (buffer - start) * sizeof(WCHAR);
1943     return STATUS_SUCCESS;
1944 }