dlls/msvcrt/mbcs.c

   1 /*
   2  * msvcrt.dll mbcs functions
   3  *
   4  * Copyright 1999 Alexandre Julliard
   5  * Copyright 2000 Jon Griffths
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * FIXME
  22  * Not currently binary compatible with win32. MSVCRT_mbctype must be
  23  * populated correctly and the ismb* functions should reference it.
  24  */
  25
  26 #include "msvcrt.h"
  27 #include "wine/unicode.h"
  28 #include "wine/debug.h"
  29 #include "msvcrt/mbctype.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  32
  33 unsigned char MSVCRT_mbctype[257] = { 0 };
  34 static int g_mbcp_is_multibyte = 0;
  35
  36 int MSVCRT___mb_cur_max = 1;
  37 extern int MSVCRT___lc_collate_cp;
  38
  39 /* It seems that the data about valid trail bytes is not available from kernel32
  40  * so we have to store is here. The format is the same as for lead bytes in CPINFO */
  41 struct cp_extra_info_t
  42 {
  43     int cp;
  44     BYTE TrailBytes[MAX_LEADBYTES];
  45 };
  46
  47 static struct cp_extra_info_t g_cpextrainfo[] =
  48 {
  49     {932, {0x40, 0x7e, 0x80, 0xfc, 0, 0}},
  50     {936, {0x40, 0xfe, 0, 0}},
  51     {949, {0x41, 0xfe, 0, 0}},
  52     {950, {0x40, 0x7e, 0xa1, 0xfe, 0, 0}},
  53     {20932, {1, 255, 0, 0}},  /* seems to give different results on different systems */
  54     {0, {1, 255, 0, 0}}       /* match all with FIXME */
  55 };
  56
  57 static MSVCRT_wchar_t msvcrt_mbc_to_wc(unsigned int ch)
  58 {
  59   MSVCRT_wchar_t chW;
  60   char mbch[2];
  61   int n_chars;
  62
  63   if (ch <= 0xff) {
  64     mbch[0] = ch;
  65     n_chars = 1;
  66   } else {
  67     mbch[0] = (ch >> 8) & 0xff;
  68     mbch[1] = ch & 0xff;
  69     n_chars = 2;
  70   }
  71   if (!MultiByteToWideChar(MSVCRT___lc_codepage, 0, mbch, n_chars, &chW, 1))
  72   {
  73     WARN("MultiByteToWideChar failed on %x\n", ch);
  74     return 0;
  75   }
  76   return chW;
  77 }
  78
  79 static inline size_t u_strlen( const unsigned char *str )
  80 {
  81   return strlen( (const char*) str );
  82 }
  83
  84 static inline unsigned char* u_strncat( unsigned char* dst, const unsigned char* src, size_t len )
  85 {
  86   return (unsigned char*)strncat( (char*)dst, (const char*)src, len);
  87 }
  88
  89 static inline int u_strcmp( const unsigned char *s1, const unsigned char *s2 )
  90 {
  91   return strcmp( (const char*)s1, (const char*)s2 );
  92 }
  93
  94 static inline int u_strcasecmp( const unsigned char *s1, const unsigned char *s2 )
  95 {
  96   return strcasecmp( (const char*)s1, (const char*)s2 );
  97 }
  98
  99 static inline int u_strncmp( const unsigned char *s1, const unsigned char *s2, size_t len )
 100 {
 101   return strncmp( (const char*)s1, (const char*)s2, len );
 102 }
 103
 104 static inline int u_strncasecmp( const unsigned char *s1, const unsigned char *s2, size_t len )
 105 {
 106   return strncasecmp( (const char*)s1, (const char*)s2, len );
 107 }
 108
 109 static inline unsigned char *u_strchr( const unsigned char *s, unsigned char x )
 110 {
 111   return (unsigned char*) strchr( (const char*)s, x );
 112 }
 113
 114 static inline unsigned char *u_strrchr( const unsigned char *s, unsigned char x )
 115 {
 116   return (unsigned char*) strrchr( (const char*)s, x );
 117 }
 118
 119 static inline unsigned char *u_strtok( unsigned char *s, const unsigned char *delim )
 120 {
 121   return (unsigned char*) strtok( (char*)s, (const char*)delim );
 122 }
 123
 124 static inline unsigned char *u__strset( unsigned char *s, unsigned char c )
 125 {
 126   return (unsigned char*) _strset( (char*)s, c);
 127 }
 128
 129 static inline unsigned char *u__strnset( unsigned char *s, unsigned char c, size_t len )
 130 {
 131   return (unsigned char*) _strnset( (char*)s, c, len );
 132 }
 133
 134 static inline size_t u_strcspn( const unsigned char *s, const unsigned char *rej )
 135 {
 136   return strcspn( (const char *)s, (const char*)rej );
 137 }
 138
 139 /*********************************************************************
 140  *              __p__mbctype (MSVCRT.@)
 141  */
 142 unsigned char* CDECL __p__mbctype(void)
 143 {
 144   return MSVCRT_mbctype;
 145 }
 146
 147 /*********************************************************************
 148  *              __p___mb_cur_max(MSVCRT.@)
 149  */
 150 int* CDECL __p___mb_cur_max(void)
 151 {
 152   return &MSVCRT___mb_cur_max;
 153 }
 154
 155 /*********************************************************************
 156  *              _setmbcp (MSVCRT.@)
 157  */
 158 int CDECL _setmbcp(int cp)
 159 {
 160   int newcp;
 161   CPINFO cpi;
 162   BYTE *bytes;
 163   WORD chartypes[256];
 164   WORD *curr_type;
 165   char bufA[256];
 166   WCHAR bufW[256];
 167   int charcount;
 168   int ret;
 169   int i;
 170
 171   switch (cp)
 172   {
 173     case _MB_CP_ANSI:
 174       newcp = GetACP();
 175       break;
 176     case _MB_CP_OEM:
 177       newcp = GetOEMCP();
 178       break;
 179     case _MB_CP_LOCALE:
 180       newcp = MSVCRT___lc_codepage;
 181       break;
 182     case _MB_CP_SBCS:
 183       newcp = 20127;   /* ASCII */
 184       break;
 185     default:
 186       newcp = cp;
 187       break;
 188   }
 189
 190   if (!GetCPInfo(newcp, &cpi))
 191   {
 192     WARN("Codepage %d not found\n", newcp);
 193     *MSVCRT__errno() = MSVCRT_EINVAL;
 194     return -1;
 195   }
 196
 197   /* setup the _mbctype */
 198   memset(MSVCRT_mbctype, 0, sizeof(MSVCRT_mbctype));
 199
 200   bytes = cpi.LeadByte;
 201   while (bytes[0] || bytes[1])
 202   {
 203     for (i = bytes[0]; i <= bytes[1]; i++)
 204       MSVCRT_mbctype[i + 1] |= _M1;
 205     bytes += 2;
 206   }
 207
 208   if (cpi.MaxCharSize > 1)
 209   {
 210     /* trail bytes not available through kernel32 but stored in a structure in msvcrt */
 211     struct cp_extra_info_t *cpextra = g_cpextrainfo;
 212
 213     g_mbcp_is_multibyte = 1;
 214     while (TRUE)
 215     {
 216       if (cpextra->cp == 0 || cpextra->cp == newcp)
 217       {
 218         if (cpextra->cp == 0)
 219           FIXME("trail bytes data not available for DBCS codepage %d - assuming all bytes\n", newcp);
 220
 221         bytes = cpextra->TrailBytes;
 222         while (bytes[0] || bytes[1])
 223         {
 224           for (i = bytes[0]; i <= bytes[1]; i++)
 225             MSVCRT_mbctype[i + 1] |= _M2;
 226           bytes += 2;
 227         }
 228         break;
 229       }
 230       cpextra++;
 231     }
 232   }
 233   else
 234     g_mbcp_is_multibyte = 0;
 235
 236   /* we can't use GetStringTypeA directly because we don't have a locale - only a code page
 237    */
 238   charcount = 0;
 239   for (i = 0; i < 256; i++)
 240     if (!(MSVCRT_mbctype[i + 1] & _M1))
 241       bufA[charcount++] = i;
 242
 243   ret = MultiByteToWideChar(newcp, 0, bufA, charcount, bufW, charcount);
 244   if (ret != charcount)
 245     ERR("MultiByteToWideChar of chars failed for cp %d, ret=%d (exp %d), error=%d\n", newcp, ret, charcount, GetLastError());
 246
 247   GetStringTypeW(CT_CTYPE1, bufW, charcount, chartypes);
 248
 249   curr_type = chartypes;
 250   for (i = 0; i < 256; i++)
 251     if (!(MSVCRT_mbctype[i + 1] & _M1))
 252     {
 253         if ((*curr_type) & C1_UPPER)
 254             MSVCRT_mbctype[i + 1] |= _SBUP;
 255         if ((*curr_type) & C1_LOWER)
 256             MSVCRT_mbctype[i + 1] |= _SBLOW;
 257         curr_type++;
 258     }
 259
 260   if (newcp == 932)   /* CP932 only - set _MP and _MS */
 261   {
 262     /* On Windows it's possible to calculate the _MP and _MS from CT_CTYPE1
 263      * and CT_CTYPE3. But as of Wine 0.9.43 we return wrong values what makes
 264      * it hard. As this is set only for codepage 932 we hardcode it what gives
 265      * also faster execution.
 266      */
 267     for (i = 161; i <= 165; i++)
 268       MSVCRT_mbctype[i + 1] |= _MP;
 269     for (i = 166; i <= 223; i++)
 270       MSVCRT_mbctype[i + 1] |= _MS;
 271   }
 272
 273   MSVCRT___lc_collate_cp = MSVCRT___lc_codepage = newcp;
 274   TRACE("(%d) -> %d\n", cp, MSVCRT___lc_codepage);
 275   return 0;
 276 }
 277
 278 /*********************************************************************
 279  *              _getmbcp (MSVCRT.@)
 280  */
 281 int CDECL _getmbcp(void)
 282 {
 283   return MSVCRT___lc_codepage;
 284 }
 285
 286 /*********************************************************************
 287  *              _mbsnextc(MSVCRT.@)
 288  */
 289 unsigned int CDECL _mbsnextc(const unsigned char* str)
 290 {
 291   if(_ismbblead(*str))
 292     return *str << 8 | str[1];
 293   return *str;
 294 }
 295
 296 /*********************************************************************
 297  *              _mbctolower(MSVCRT.@)
 298  */
 299 unsigned int CDECL _mbctolower(unsigned int c)
 300 {
 301     if (MSVCRT_isleadbyte(c))
 302     {
 303       FIXME("Handle MBC chars\n");
 304       return c;
 305     }
 306     return tolower(c); /* ASCII CP or SB char */
 307 }
 308
 309 /*********************************************************************
 310  *              _mbctoupper(MSVCRT.@)
 311  */
 312 unsigned int CDECL _mbctoupper(unsigned int c)
 313 {
 314     if (MSVCRT_isleadbyte(c))
 315     {
 316       FIXME("Handle MBC chars\n");
 317       return c;
 318     }
 319     return toupper(c); /* ASCII CP or SB char */
 320 }
 321
 322 /*********************************************************************
 323  *              _mbsdec(MSVCRT.@)
 324  */
 325 unsigned char* CDECL _mbsdec(const unsigned char* start, const unsigned char* cur)
 326 {
 327   if(MSVCRT___mb_cur_max > 1)
 328     return (unsigned char *)(_ismbstrail(start,cur-1) ? cur - 2 : cur -1);
 329
 330   return (unsigned char *)cur - 1; /* ASCII CP or SB char */
 331 }
 332
 333 /*********************************************************************
 334  *              _mbclen(MSVCRT.@)
 335  */
 336 unsigned int CDECL _mbclen(const unsigned char* str)
 337 {
 338   return _ismbblead(*str) ? 2 : 1;
 339 }
 340
 341 /*********************************************************************
 342  *              _mbsinc(MSVCRT.@)
 343  */
 344 unsigned char* CDECL _mbsinc(const unsigned char* str)
 345 {
 346   return (unsigned char *)(str + _mbclen(str));
 347 }
 348
 349 /*********************************************************************
 350  *              _mbsninc(MSVCRT.@)
 351  */
 352 unsigned char* CDECL _mbsninc(const unsigned char* str, MSVCRT_size_t num)
 353 {
 354   if(!str)
 355     return NULL;
 356
 357   while (num > 0 && *str)
 358   {
 359     if (_ismbblead(*str))
 360     {
 361       if (!*(str+1))
 362          break;
 363       str++;
 364     }
 365     str++;
 366     num--;
 367   }
 368
 369   return (unsigned char*)str;
 370 }
 371
 372 /*********************************************************************
 373  *              _mbslen(MSVCRT.@)
 374  */
 375 MSVCRT_size_t CDECL _mbslen(const unsigned char* str)
 376 {
 377   MSVCRT_size_t len = 0;
 378   while(*str)
 379   {
 380     if (_ismbblead(*str))
 381     {
 382       str++;
 383       if (!*str)  /* count only full chars */
 384         break;
 385     }
 386     str++;
 387     len++;
 388   }
 389   return len;
 390 }
 391
 392 /*********************************************************************
 393  *              _mbccpy(MSVCRT.@)
 394  */
 395 void CDECL _mbccpy(unsigned char* dest, const unsigned char* src)
 396 {
 397   *dest = *src;
 398   if(_ismbblead(*src))
 399     *++dest = *++src; /* MB char */
 400 }
 401
 402 /*********************************************************************
 403  *              _mbsncpy(MSVCRT.@)
 404  * REMARKS
 405  *  The parameter n is the number or characters to copy, not the size of
 406  *  the buffer. Use _mbsnbcpy for a function analogical to strncpy
 407  */
 408 unsigned char* CDECL _mbsncpy(unsigned char* dst, const unsigned char* src, MSVCRT_size_t n)
 409 {
 410   unsigned char* ret = dst;
 411   if(!n)
 412     return dst;
 413   if (g_mbcp_is_multibyte)
 414   {
 415     while (*src && n)
 416     {
 417       n--;
 418       if (_ismbblead(*src))
 419       {
 420         if (!*(src+1))
 421         {
 422             *dst++ = 0;
 423             *dst++ = 0;
 424             break;
 425         }
 426
 427         *dst++ = *src++;
 428       }
 429
 430       *dst++ = *src++;
 431     }
 432   }
 433   else
 434   {
 435     while (n)
 436     {
 437         n--;
 438         if (!(*dst++ = *src++)) break;
 439     }
 440   }
 441   while (n--) *dst++ = 0;
 442   return ret;
 443 }
 444
 445 /*********************************************************************
 446  *              _mbsnbcpy_s(MSVCRT.@)
 447  * REMARKS
 448  * Unlike _mbsnbcpy this function does not pad the rest of the dest
 449  * string with 0
 450  */
 451 int CDECL _mbsnbcpy_s(unsigned char* dst, MSVCRT_size_t size, const unsigned char* src, MSVCRT_size_t n)
 452 {
 453     MSVCRT_size_t pos = 0;
 454
 455     if(!dst || size == 0)
 456         return MSVCRT_EINVAL;
 457     if(!src)
 458     {
 459         dst[0] = '\0';
 460         return MSVCRT_EINVAL;
 461     }
 462     if(!n)
 463         return 0;
 464
 465     if(g_mbcp_is_multibyte)
 466     {
 467         int is_lead = 0;
 468         while (*src && n)
 469         {
 470             if(pos == size)
 471             {
 472                 dst[0] = '\0';
 473                 return MSVCRT_ERANGE;
 474             }
 475             is_lead = (!is_lead && _ismbblead(*src));
 476             n--;
 477             dst[pos++] = *src++;
 478         }
 479
 480         if (is_lead) /* if string ends with a lead, remove it */
 481             dst[pos - 1] = 0;
 482     }
 483     else
 484     {
 485         while (n)
 486         {
 487             n--;
 488             if(pos == size)
 489             {
 490                 dst[0] = '\0';
 491                 return MSVCRT_ERANGE;
 492             }
 493
 494             if(!(*src)) break;
 495             dst[pos++] = *src++;
 496         }
 497     }
 498
 499     if(pos < size)
 500         dst[pos] = '\0';
 501     else
 502     {
 503         dst[0] = '\0';
 504         return MSVCRT_ERANGE;
 505     }
 506
 507     return 0;
 508 }
 509
 510 /*********************************************************************
 511  *              _mbsnbcpy(MSVCRT.@)
 512  * REMARKS
 513  *  Like strncpy this function doesn't enforce the string to be
 514  *  NUL-terminated
 515  */
 516 unsigned char* CDECL _mbsnbcpy(unsigned char* dst, const unsigned char* src, MSVCRT_size_t n)
 517 {
 518   unsigned char* ret = dst;
 519   if(!n)
 520     return dst;
 521   if(g_mbcp_is_multibyte)
 522   {
 523     int is_lead = 0;
 524     while (*src && n)
 525     {
 526       is_lead = (!is_lead && _ismbblead(*src));
 527       n--;
 528       *dst++ = *src++;
 529     }
 530
 531     if (is_lead) /* if string ends with a lead, remove it */
 532         *(dst - 1) = 0;
 533   }
 534   else
 535   {
 536     while (n)
 537     {
 538         n--;
 539         if (!(*dst++ = *src++)) break;
 540     }
 541   }
 542   while (n--) *dst++ = 0;
 543   return ret;
 544 }
 545
 546 /*********************************************************************
 547  *              _mbscmp(MSVCRT.@)
 548  */
 549 int CDECL _mbscmp(const unsigned char* str, const unsigned char* cmp)
 550 {
 551   if(MSVCRT___mb_cur_max > 1)
 552   {
 553     unsigned int strc, cmpc;
 554     do {
 555       if(!*str)
 556         return *cmp ? -1 : 0;
 557       if(!*cmp)
 558         return 1;
 559       strc = _mbsnextc(str);
 560       cmpc = _mbsnextc(cmp);
 561       if(strc != cmpc)
 562         return strc < cmpc ? -1 : 1;
 563       str +=(strc > 255) ? 2 : 1;
 564       cmp +=(strc > 255) ? 2 : 1; /* equal, use same increment */
 565     } while(1);
 566   }
 567   return u_strcmp(str, cmp); /* ASCII CP */
 568 }
 569
 570 /*********************************************************************
 571  *              _mbsicoll(MSVCRT.@)
 572  * FIXME: handle locales.
 573  */
 574 int CDECL _mbsicoll(const unsigned char* str, const unsigned char* cmp)
 575 {
 576   if(MSVCRT___mb_cur_max > 1)
 577   {
 578     unsigned int strc, cmpc;
 579     do {
 580       if(!*str)
 581         return *cmp ? -1 : 0;
 582       if(!*cmp)
 583         return 1;
 584       strc = _mbctolower(_mbsnextc(str));
 585       cmpc = _mbctolower(_mbsnextc(cmp));
 586       if(strc != cmpc)
 587         return strc < cmpc ? -1 : 1;
 588       str +=(strc > 255) ? 2 : 1;
 589       cmp +=(strc > 255) ? 2 : 1; /* equal, use same increment */
 590     } while(1);
 591   }
 592   return u_strcasecmp(str, cmp); /* ASCII CP */
 593 }
 594
 595 /*********************************************************************
 596  *              _mbscoll(MSVCRT.@)
 597  * Performs a case-sensitive comparison according to the current code page
 598  * RETURN
 599  *   _NLSCMPERROR if error
 600  * FIXME: handle locales.
 601  */
 602 int CDECL _mbscoll(const unsigned char* str, const unsigned char* cmp)
 603 {
 604   if(MSVCRT___mb_cur_max > 1)
 605   {
 606     unsigned int strc, cmpc;
 607     do {
 608       if(!*str)
 609         return *cmp ? -1 : 0;
 610       if(!*cmp)
 611         return 1;
 612       strc = _mbsnextc(str);
 613       cmpc = _mbsnextc(cmp);
 614       if(strc != cmpc)
 615         return strc < cmpc ? -1 : 1;
 616       str +=(strc > 255) ? 2 : 1;
 617       cmp +=(strc > 255) ? 2 : 1; /* equal, use same increment */
 618     } while(1);
 619   }
 620   return u_strcmp(str, cmp); /* ASCII CP */
 621 }
 622
 623
 624 /*********************************************************************
 625  *              _mbsicmp(MSVCRT.@)
 626  */
 627 int CDECL _mbsicmp(const unsigned char* str, const unsigned char* cmp)
 628 {
 629   if(MSVCRT___mb_cur_max > 1)
 630   {
 631     unsigned int strc, cmpc;
 632     do {
 633       if(!*str)
 634         return *cmp ? -1 : 0;
 635       if(!*cmp)
 636         return 1;
 637       strc = _mbctolower(_mbsnextc(str));
 638       cmpc = _mbctolower(_mbsnextc(cmp));
 639       if(strc != cmpc)
 640         return strc < cmpc ? -1 : 1;
 641       str +=(strc > 255) ? 2 : 1;
 642       cmp +=(strc > 255) ? 2 : 1; /* equal, use same increment */
 643     } while(1);
 644   }
 645   return u_strcasecmp(str, cmp); /* ASCII CP */
 646 }
 647
 648 /*********************************************************************
 649  *              _mbsncmp(MSVCRT.@)
 650  */
 651 int CDECL _mbsncmp(const unsigned char* str, const unsigned char* cmp, MSVCRT_size_t len)
 652 {
 653   if(!len)
 654     return 0;
 655
 656   if(MSVCRT___mb_cur_max > 1)
 657   {
 658     unsigned int strc, cmpc;
 659     while(len--)
 660     {
 661       int inc;
 662       if(!*str)
 663         return *cmp ? -1 : 0;
 664       if(!*cmp)
 665         return 1;
 666       strc = _mbsnextc(str);
 667       cmpc = _mbsnextc(cmp);
 668       if(strc != cmpc)
 669         return strc < cmpc ? -1 : 1;
 670       inc=(strc > 255) ? 2 : 1; /* Equal, use same increment */
 671       str += inc;
 672       cmp += inc;
 673     }
 674     return 0; /* Matched len chars */
 675   }
 676   return u_strncmp(str, cmp, len); /* ASCII CP */
 677 }
 678
 679 /*********************************************************************
 680  *              _mbsnbcmp(MSVCRT.@)
 681  */
 682 int CDECL _mbsnbcmp(const unsigned char* str, const unsigned char* cmp, MSVCRT_size_t len)
 683 {
 684   if (!len)
 685     return 0;
 686   if(MSVCRT___mb_cur_max > 1)
 687   {
 688     unsigned int strc, cmpc;
 689     while (len)
 690     {
 691       int clen;
 692       if(!*str)
 693         return *cmp ? -1 : 0;
 694       if(!*cmp)
 695         return 1;
 696       if (MSVCRT_isleadbyte(*str))
 697       {
 698         strc=(len>=2)?_mbsnextc(str):0;
 699         clen=2;
 700       }
 701       else
 702       {
 703         strc=*str;
 704         clen=1;
 705       }
 706       if (MSVCRT_isleadbyte(*cmp))
 707         cmpc=(len>=2)?_mbsnextc(cmp):0;
 708       else
 709         cmpc=*str;
 710       if(strc != cmpc)
 711         return strc < cmpc ? -1 : 1;
 712       len -= clen;
 713       str += clen;
 714       cmp += clen;
 715     }
 716     return 0; /* Matched len chars */
 717   }
 718   return u_strncmp(str,cmp,len);
 719 }
 720
 721 /*********************************************************************
 722  *              _mbsnicmp(MSVCRT.@)
 723  *
 724  * Compare two multibyte strings case insensitively to 'len' characters.
 725  */
 726 int CDECL _mbsnicmp(const unsigned char* str, const unsigned char* cmp, MSVCRT_size_t len)
 727 {
 728   /* FIXME: No tolower() for mb strings yet */
 729   if(MSVCRT___mb_cur_max > 1)
 730   {
 731     unsigned int strc, cmpc;
 732     while(len--)
 733     {
 734       if(!*str)
 735         return *cmp ? -1 : 0;
 736       if(!*cmp)
 737         return 1;
 738       strc = _mbctolower(_mbsnextc(str));
 739       cmpc = _mbctolower(_mbsnextc(cmp));
 740       if(strc != cmpc)
 741         return strc < cmpc ? -1 : 1;
 742       str +=(strc > 255) ? 2 : 1;
 743       cmp +=(strc > 255) ? 2 : 1; /* Equal, use same increment */
 744     }
 745     return 0; /* Matched len chars */
 746   }
 747   return u_strncasecmp(str, cmp, len); /* ASCII CP */
 748 }
 749
 750 /*********************************************************************
 751  *              _mbsnbicmp(MSVCRT.@)
 752  */
 753 int CDECL _mbsnbicmp(const unsigned char* str, const unsigned char* cmp, MSVCRT_size_t len)
 754 {
 755   if (!len)
 756     return 0;
 757   if(MSVCRT___mb_cur_max > 1)
 758   {
 759     unsigned int strc, cmpc;
 760     while (len)
 761     {
 762       int clen;
 763       if(!*str)
 764         return *cmp ? -1 : 0;
 765       if(!*cmp)
 766         return 1;
 767       if (MSVCRT_isleadbyte(*str))
 768       {
 769         strc=(len>=2)?_mbsnextc(str):0;
 770         clen=2;
 771       }
 772       else
 773       {
 774         strc=*str;
 775         clen=1;
 776       }
 777       if (MSVCRT_isleadbyte(*cmp))
 778         cmpc=(len>=2)?_mbsnextc(cmp):0;
 779       else
 780         cmpc=*str;
 781       strc = _mbctolower(strc);
 782       cmpc = _mbctolower(cmpc);
 783       if(strc != cmpc)
 784         return strc < cmpc ? -1 : 1;
 785       len -= clen;
 786       str += clen;
 787       cmp += clen;
 788     }
 789     return 0; /* Matched len bytes */
 790   }
 791   return u_strncasecmp(str,cmp,len);
 792 }
 793
 794 /*********************************************************************
 795  *              _mbscat (MSVCRT.@)
 796  */
 797 unsigned char * CDECL _mbscat( unsigned char *dst, const unsigned char *src )
 798 {
 799     strcat( (char *)dst, (const char *)src );
 800     return dst;
 801 }
 802
 803 /*********************************************************************
 804  *              _mbscpy (MSVCRT.@)
 805  */
 806 unsigned char* CDECL _mbscpy( unsigned char *dst, const unsigned char *src )
 807 {
 808     strcpy( (char *)dst, (const char *)src );
 809     return dst;
 810 }
 811
 812 /*********************************************************************
 813  *              _mbsstr (MSVCRT.@)
 814  */
 815 unsigned char * CDECL _mbsstr(const unsigned char *haystack, const unsigned char *needle)
 816 {
 817     return (unsigned char *)strstr( (const char *)haystack, (const char *)needle );
 818 }
 819
 820 /*********************************************************************
 821  *              _mbschr(MSVCRT.@)
 822  *
 823  * Find a multibyte character in a multibyte string.
 824  */
 825 unsigned char* CDECL _mbschr(const unsigned char* s, unsigned int x)
 826 {
 827   if(MSVCRT___mb_cur_max > 1)
 828   {
 829     unsigned int c;
 830     while (1)
 831     {
 832       c = _mbsnextc(s);
 833       if (c == x)
 834         return (unsigned char*)s;
 835       if (!c)
 836         return NULL;
 837       s += c > 255 ? 2 : 1;
 838     }
 839   }
 840   return u_strchr(s, x); /* ASCII CP */
 841 }
 842
 843 /*********************************************************************
 844  *              _mbsrchr(MSVCRT.@)
 845  */
 846 unsigned char* CDECL _mbsrchr(const unsigned char* s, unsigned int x)
 847 {
 848   if(MSVCRT___mb_cur_max > 1)
 849   {
 850     unsigned int c;
 851     unsigned char* match=NULL;
 852     if(!s)
 853       return NULL;
 854     while (1) {
 855       c = _mbsnextc(s);
 856       if (c == x)
 857         match=(unsigned char*)s;
 858       if (!c)
 859         return match;
 860       s +=(c > 255) ? 2 : 1;
 861     }
 862   }
 863   return u_strrchr(s, x);
 864 }
 865
 866 /*********************************************************************
 867  *              _mbstok(MSVCRT.@)
 868  *
 869  * Find and extract tokens from strings
 870  */
 871 unsigned char* CDECL _mbstok(unsigned char *str, const unsigned char *delim)
 872 {
 873     thread_data_t *data = msvcrt_get_thread_data();
 874     unsigned char *ret;
 875
 876     if(MSVCRT___mb_cur_max > 1)
 877     {
 878         unsigned int c;
 879
 880         if (!str)
 881             if (!(str = data->mbstok_next)) return NULL;
 882
 883         while ((c = _mbsnextc(str)) && _mbschr(delim, c)) {
 884             str += c > 255 ? 2 : 1;
 885         }
 886         if (!*str) return NULL;
 887         ret = str++;
 888         while ((c = _mbsnextc(str)) && !_mbschr(delim, c)) {
 889             str += c > 255 ? 2 : 1;
 890         }
 891         if (*str) {
 892             *str++ = 0;
 893             if (c > 255) *str++ = 0;
 894         }
 895         data->mbstok_next = str;
 896         return ret;
 897     }
 898     return u_strtok(str, delim); /* ASCII CP */
 899 }
 900
 901 /*********************************************************************
 902  *              mbtowc(MSVCRT.@)
 903  */
 904 int CDECL MSVCRT_mbtowc(MSVCRT_wchar_t *dst, const char* str, MSVCRT_size_t n)
 905 {
 906     /* temp var needed because MultiByteToWideChar wants non NULL destination */
 907     MSVCRT_wchar_t tmpdst = '\0';
 908
 909     if(n <= 0 || !str)
 910         return 0;
 911     if(!MultiByteToWideChar(CP_ACP, 0, str, n, &tmpdst, 1))
 912         return -1;
 913     if(dst)
 914         *dst = tmpdst;
 915     /* return the number of bytes from src that have been used */
 916     if(!*str)
 917         return 0;
 918     if(n >= 2 && MSVCRT_isleadbyte(*str) && str[1])
 919         return 2;
 920     return 1;
 921 }
 922
 923 /*********************************************************************
 924  *              _mbbtombc(MSVCRT.@)
 925  */
 926 unsigned int CDECL _mbbtombc(unsigned int c)
 927 {
 928   if(MSVCRT___mb_cur_max > 1 &&
 929      ((c >= 0x20 && c <=0x7e) ||(c >= 0xa1 && c <= 0xdf)))
 930   {
 931     /* FIXME: I can't get this function to return anything
 932      * different from what I pass it...
 933      */
 934   }
 935   return c;  /* ASCII CP or no MB char */
 936 }
 937
 938 /*********************************************************************
 939  *              _mbbtype(MSVCRT.@)
 940  */
 941 int CDECL _mbbtype(unsigned char c, int type)
 942 {
 943     if (type == 1)
 944     {
 945         if ((c >= 0x20 && c <= 0x7e) || (c >= 0xa1 && c <= 0xdf))
 946             return _MBC_SINGLE;
 947         else if ((c >= 0x40 && c <= 0x7e) || (c >= 0x80 && c <= 0xfc))
 948             return _MBC_TRAIL;
 949         else
 950             return _MBC_ILLEGAL;
 951     }
 952     else
 953     {
 954         if ((c >= 0x20 && c <= 0x7e) || (c >= 0xa1 && c <= 0xdf))
 955             return _MBC_SINGLE;
 956         else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xfc))
 957             return _MBC_LEAD;
 958         else
 959             return _MBC_ILLEGAL;
 960     }
 961 }
 962
 963 /*********************************************************************
 964  *              _ismbbkana(MSVCRT.@)
 965  */
 966 int CDECL _ismbbkana(unsigned int c)
 967 {
 968   /* FIXME: use lc_ctype when supported, not lc_all */
 969   if(MSVCRT___lc_codepage == 932)
 970   {
 971     /* Japanese/Katakana, CP 932 */
 972     return (c >= 0xa1 && c <= 0xdf);
 973   }
 974   return 0;
 975 }
 976
 977 /*********************************************************************
 978  *              _ismbcdigit(MSVCRT.@)
 979  */
 980 int CDECL _ismbcdigit(unsigned int ch)
 981 {
 982     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
 983     return (get_char_typeW( wch ) & C1_DIGIT);
 984 }
 985
 986 /*********************************************************************
 987  *              _ismbcgraph(MSVCRT.@)
 988  */
 989 int CDECL _ismbcgraph(unsigned int ch)
 990 {
 991     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
 992     return (get_char_typeW( wch ) & (C1_UPPER | C1_LOWER | C1_DIGIT | C1_PUNCT | C1_ALPHA));
 993 }
 994
 995 /*********************************************************************
 996  *              _ismbcalpha (MSVCRT.@)
 997  */
 998 int CDECL _ismbcalpha(unsigned int ch)
 999 {
1000     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1001     return (get_char_typeW( wch ) & C1_ALPHA);
1002 }
1003
1004 /*********************************************************************
1005  *              _ismbclower (MSVCRT.@)
1006  */
1007 int CDECL _ismbclower(unsigned int ch)
1008 {
1009     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1010     return (get_char_typeW( wch ) & C1_UPPER);
1011 }
1012
1013 /*********************************************************************
1014  *              _ismbcupper (MSVCRT.@)
1015  */
1016 int CDECL _ismbcupper(unsigned int ch)
1017 {
1018     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1019     return (get_char_typeW( wch ) & C1_LOWER);
1020 }
1021
1022 /*********************************************************************
1023  *              _ismbcsymbol(MSVCRT.@)
1024  */
1025 int CDECL _ismbcsymbol(unsigned int ch)
1026 {
1027     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1028     WORD ctype;
1029     if (!GetStringTypeW(CT_CTYPE3, &wch, 1, &ctype))
1030     {
1031         WARN("GetStringTypeW failed on %x\n", ch);
1032         return 0;
1033     }
1034     return ((ctype & C3_SYMBOL) != 0);
1035 }
1036
1037 /*********************************************************************
1038  *              _ismbcalnum (MSVCRT.@)
1039  */
1040 int CDECL _ismbcalnum(unsigned int ch)
1041 {
1042     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1043     return (get_char_typeW( wch ) & (C1_ALPHA | C1_DIGIT));
1044 }
1045
1046 /*********************************************************************
1047  *              _ismbcspace (MSVCRT.@)
1048  */
1049 int CDECL _ismbcspace(unsigned int ch)
1050 {
1051     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1052     return (get_char_typeW( wch ) & C1_SPACE);
1053 }
1054
1055 /*********************************************************************
1056  *              _ismbcprint (MSVCRT.@)
1057  */
1058 int CDECL _ismbcprint(unsigned int ch)
1059 {
1060     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1061     return (get_char_typeW( wch ) & (C1_UPPER | C1_LOWER | C1_DIGIT | C1_PUNCT | C1_ALPHA | C1_SPACE));
1062 }
1063
1064 /*********************************************************************
1065  *              _ismbcpunct(MSVCRT.@)
1066  */
1067 int CDECL _ismbcpunct(unsigned int ch)
1068 {
1069     MSVCRT_wchar_t wch = msvcrt_mbc_to_wc( ch );
1070     return (get_char_typeW( wch ) & C1_PUNCT);
1071 }
1072
1073 /*********************************************************************
1074  *              _ismbchira(MSVCRT.@)
1075  */
1076 int CDECL _ismbchira(unsigned int c)
1077 {
1078   /* FIXME: use lc_ctype when supported, not lc_all */
1079   if(MSVCRT___lc_codepage == 932)
1080   {
1081     /* Japanese/Hiragana, CP 932 */
1082     return (c >= 0x829f && c <= 0x82f1);
1083   }
1084   return 0;
1085 }
1086
1087 /*********************************************************************
1088  *              _ismbckata(MSVCRT.@)
1089  */
1090 int CDECL _ismbckata(unsigned int c)
1091 {
1092   /* FIXME: use lc_ctype when supported, not lc_all */
1093   if(MSVCRT___lc_codepage == 932)
1094   {
1095     if(c < 256)
1096       return _ismbbkana(c);
1097     /* Japanese/Katakana, CP 932 */
1098     return (c >= 0x8340 && c <= 0x8396 && c != 0x837f);
1099   }
1100   return 0;
1101 }
1102
1103 /*********************************************************************
1104  *              _ismbblead(MSVCRT.@)
1105  */
1106 int CDECL _ismbblead(unsigned int c)
1107 {
1108   return (MSVCRT_mbctype[(c&0xff) + 1] & _M1) != 0;
1109 }
1110
1111
1112 /*********************************************************************
1113  *              _ismbbtrail(MSVCRT.@)
1114  */
1115 int CDECL _ismbbtrail(unsigned int c)
1116 {
1117   return (MSVCRT_mbctype[(c&0xff) + 1] & _M2) != 0;
1118 }
1119
1120 /*********************************************************************
1121  *              _ismbslead(MSVCRT.@)
1122  */
1123 int CDECL _ismbslead(const unsigned char* start, const unsigned char* str)
1124 {
1125   int lead = 0;
1126
1127   if(!g_mbcp_is_multibyte)
1128     return 0;
1129
1130   /* Lead bytes can also be trail bytes so we need to analyse the string
1131    */
1132   while (start <= str)
1133   {
1134     if (!*start)
1135       return 0;
1136     lead = !lead && _ismbblead(*start);
1137     start++;
1138   }
1139
1140   return lead ? -1 : 0;
1141 }
1142
1143 /*********************************************************************
1144  *              _ismbstrail(MSVCRT.@)
1145  */
1146 int CDECL _ismbstrail(const unsigned char* start, const unsigned char* str)
1147 {
1148   /* Note: this function doesn't check _ismbbtrail */
1149   if ((str > start) && _ismbslead(start, str-1))
1150     return -1;
1151   else
1152     return 0;
1153 }
1154
1155 /*********************************************************************
1156  *              _mbsbtype (MSVCRT.@)
1157  */
1158 int CDECL _mbsbtype(const unsigned char *str, MSVCRT_size_t count)
1159 {
1160   int lead = 0;
1161   const unsigned char *end = str + count;
1162   int mbcp = g_mbcp_is_multibyte;
1163
1164   /* Lead bytes can also be trail bytes so we need to analyse the string.
1165    * Also we must return _MBC_ILLEGAL for chars past the end of the string
1166    */
1167   while (str < end) /* Note: we skip the last byte - will check after the loop */
1168   {
1169     if (!*str)
1170       return _MBC_ILLEGAL;
1171     lead = mbcp && !lead && _ismbblead(*str);
1172     str++;
1173   }
1174
1175   if (lead)
1176     if (_ismbbtrail(*str))
1177       return _MBC_TRAIL;
1178     else
1179       return _MBC_ILLEGAL;
1180   else
1181     if (_ismbblead(*str))
1182       return _MBC_LEAD;
1183     else
1184       return _MBC_SINGLE;
1185 }
1186
1187 /*********************************************************************
1188  *              _mbsset(MSVCRT.@)
1189  */
1190 unsigned char* CDECL _mbsset(unsigned char* str, unsigned int c)
1191 {
1192   unsigned char* ret = str;
1193
1194   if(MSVCRT___mb_cur_max == 1 || c < 256)
1195     return u__strset(str, c); /* ASCII CP or SB char */
1196
1197   c &= 0xffff; /* Strip high bits */
1198
1199   while(str[0] && str[1])
1200   {
1201     *str++ = c >> 8;
1202     *str++ = c & 0xff;
1203   }
1204   if(str[0])
1205     str[0] = '\0'; /* FIXME: OK to shorten? */
1206
1207   return ret;
1208 }
1209
1210 /*********************************************************************
1211  *              _mbsnbset(MSVCRT.@)
1212  */
1213 unsigned char* CDECL _mbsnbset(unsigned char *str, unsigned int c, MSVCRT_size_t len)
1214 {
1215     unsigned char *ret = str;
1216
1217     if(!len)
1218         return ret;
1219
1220     if(MSVCRT___mb_cur_max == 1 || c < 256)
1221         return u__strnset(str, c, len); /* ASCII CP or SB char */
1222
1223     c &= 0xffff; /* Strip high bits */
1224
1225     while(str[0] && str[1] && (len > 1))
1226     {
1227         *str++ = c >> 8;
1228         len--;
1229         *str++ = c & 0xff;
1230         len--;
1231     }
1232     if(len && str[0]) {
1233         /* as per msdn pad with a blank character */
1234         str[0] = ' ';
1235     }
1236
1237     return ret;
1238 }
1239
1240 /*********************************************************************
1241  *              _mbsnset(MSVCRT.@)
1242  */
1243 unsigned char* CDECL _mbsnset(unsigned char* str, unsigned int c, MSVCRT_size_t len)
1244 {
1245   unsigned char *ret = str;
1246
1247   if(!len)
1248     return ret;
1249
1250   if(MSVCRT___mb_cur_max == 1 || c < 256)
1251     return u__strnset(str, c, len); /* ASCII CP or SB char */
1252
1253   c &= 0xffff; /* Strip high bits */
1254
1255   while(str[0] && str[1] && len--)
1256   {
1257     *str++ = c >> 8;
1258     *str++ = c & 0xff;
1259   }
1260   if(len && str[0])
1261     str[0] = '\0'; /* FIXME: OK to shorten? */
1262
1263   return ret;
1264 }
1265
1266 /*********************************************************************
1267  *              _mbsnccnt(MSVCRT.@)
1268  * 'c' is for 'character'.
1269  */
1270 MSVCRT_size_t CDECL _mbsnccnt(const unsigned char* str, MSVCRT_size_t len)
1271 {
1272   MSVCRT_size_t ret;
1273   if(MSVCRT___mb_cur_max > 1)
1274   {
1275     ret=0;
1276     while(*str && len-- > 0)
1277     {
1278       if(MSVCRT_isleadbyte(*str))
1279       {
1280         if (!len)
1281           break;
1282         len--;
1283         str++;
1284       }
1285       str++;
1286       ret++;
1287     }
1288     return ret;
1289   }
1290   ret=u_strlen(str);
1291   return min(ret, len); /* ASCII CP */
1292 }
1293
1294 /*********************************************************************
1295  *              _mbsnbcnt(MSVCRT.@)
1296  * 'b' is for byte count.
1297  */
1298 MSVCRT_size_t CDECL _mbsnbcnt(const unsigned char* str, MSVCRT_size_t len)
1299 {
1300   MSVCRT_size_t ret;
1301   if(MSVCRT___mb_cur_max > 1)
1302   {
1303     const unsigned char* xstr = str;
1304     while(*xstr && len-- > 0)
1305     {
1306       if (MSVCRT_isleadbyte(*xstr++))
1307         xstr++;
1308     }
1309     return xstr-str;
1310   }
1311   ret=u_strlen(str);
1312   return min(ret, len); /* ASCII CP */
1313 }
1314
1315 /*********************************************************************
1316  *              _mbsnbcat(MSVCRT.@)
1317  */
1318 unsigned char* CDECL _mbsnbcat(unsigned char* dst, const unsigned char* src, MSVCRT_size_t len)
1319 {
1320     if(MSVCRT___mb_cur_max > 1)
1321     {
1322         unsigned char *res = dst;
1323         while (*dst) {
1324             if (MSVCRT_isleadbyte(*dst++)) {
1325                 if (*dst) {
1326                     dst++;
1327                 } else {
1328                     /* as per msdn overwrite the lead byte in front of '\0' */
1329                     dst--;
1330                     break;
1331                 }
1332             }
1333         }
1334         while (*src && len--) *dst++ = *src++;
1335         *dst = '\0';
1336         return res;
1337     }
1338     return u_strncat(dst, src, len); /* ASCII CP */
1339 }
1340
1341
1342 /*********************************************************************
1343  *              _mbsncat(MSVCRT.@)
1344  */
1345 unsigned char* CDECL _mbsncat(unsigned char* dst, const unsigned char* src, MSVCRT_size_t len)
1346 {
1347   if(MSVCRT___mb_cur_max > 1)
1348   {
1349     unsigned char *res = dst;
1350     while (*dst)
1351     {
1352       if (MSVCRT_isleadbyte(*dst++))
1353         dst++;
1354     }
1355     while (*src && len--)
1356     {
1357       *dst++ = *src;
1358       if(MSVCRT_isleadbyte(*src++))
1359         *dst++ = *src++;
1360     }
1361     *dst = '\0';
1362     return res;
1363   }
1364   return u_strncat(dst, src, len); /* ASCII CP */
1365 }
1366
1367
1368 /*********************************************************************
1369  *              _mbslwr(MSVCRT.@)
1370  */
1371 unsigned char* CDECL _mbslwr(unsigned char* s)
1372 {
1373   unsigned char *ret = s;
1374   if (!s)
1375     return NULL;
1376   if (MSVCRT___mb_cur_max > 1)
1377   {
1378     unsigned int c;
1379     while (*s)
1380     {
1381       c = _mbctolower(_mbsnextc(s));
1382       /* Note that I assume that the size of the character is unchanged */
1383       if (c > 255)
1384       {
1385           *s++=(c>>8);
1386           c=c & 0xff;
1387       }
1388       *s++=c;
1389     }
1390   }
1391   else for ( ; *s; s++) *s = tolower(*s);
1392   return ret;
1393 }
1394
1395
1396 /*********************************************************************
1397  *              _mbsupr(MSVCRT.@)
1398  */
1399 unsigned char* CDECL _mbsupr(unsigned char* s)
1400 {
1401   unsigned char *ret = s;
1402   if (!s)
1403     return NULL;
1404   if (MSVCRT___mb_cur_max > 1)
1405   {
1406     unsigned int c;
1407     while (*s)
1408     {
1409       c = _mbctoupper(_mbsnextc(s));
1410       /* Note that I assume that the size of the character is unchanged */
1411       if (c > 255)
1412       {
1413           *s++=(c>>8);
1414           c=c & 0xff;
1415       }
1416       *s++=c;
1417     }
1418   }
1419   else for ( ; *s; s++) *s = toupper(*s);
1420   return ret;
1421 }
1422
1423
1424 /*********************************************************************
1425  *              _mbsspn (MSVCRT.@)
1426  */
1427 MSVCRT_size_t CDECL _mbsspn(const unsigned char* string, const unsigned char* set)
1428 {
1429     const unsigned char *p, *q;
1430
1431     for (p = string; *p; p++)
1432     {
1433         if (MSVCRT_isleadbyte(*p))
1434         {
1435             for (q = set; *q; q++)
1436             {
1437                 if (!q[1])
1438                     break;
1439                 if ((*p == *q) &&  (p[1] == q[1]))
1440                     break;
1441                 q++;
1442             }
1443             if (!q[0] || !q[1]) break;
1444         }
1445         else
1446         {
1447             for (q = set; *q; q++)
1448                 if (*p == *q)
1449                     break;
1450             if (!*q) break;
1451         }
1452     }
1453     return p - string;
1454 }
1455
1456 /*********************************************************************
1457  *              _mbsspnp (MSVCRT.@)
1458  */
1459 unsigned char* CDECL _mbsspnp(const unsigned char* string, const unsigned char* set)
1460 {
1461     const unsigned char *p, *q;
1462
1463     for (p = string; *p; p++)
1464     {
1465         if (MSVCRT_isleadbyte(*p))
1466         {
1467             for (q = set; *q; q++)
1468             {
1469                 if (!q[1])
1470                     break;
1471                 if ((*p == *q) &&  (p[1] == q[1]))
1472                     break;
1473                 q++;
1474             }
1475             if (!q[0] || !q[1]) break;
1476         }
1477         else
1478         {
1479             for (q = set; *q; q++)
1480                 if (*p == *q)
1481                     break;
1482             if (!*q) break;
1483         }
1484     }
1485     if (*p == '\0')
1486         return NULL;
1487     return (unsigned char *)p;
1488 }
1489
1490 /*********************************************************************
1491  *              _mbscspn(MSVCRT.@)
1492  */
1493 MSVCRT_size_t CDECL _mbscspn(const unsigned char* str, const unsigned char* cmp)
1494 {
1495   if (MSVCRT___mb_cur_max > 1)
1496     FIXME("don't handle double character case\n");
1497   return u_strcspn(str, cmp);
1498 }
1499
1500 /*********************************************************************
1501  *              _mbsrev (MSVCRT.@)
1502  */
1503 unsigned char* CDECL _mbsrev(unsigned char* str)
1504 {
1505     int i, len = _mbslen(str);
1506     unsigned char *p, *temp=MSVCRT_malloc(len*2);
1507
1508     if(!temp)
1509         return str;
1510
1511     /* unpack multibyte string to temp buffer */
1512     p=str;
1513     for(i=0; i<len; i++)
1514     {
1515         if (MSVCRT_isleadbyte(*p))
1516         {
1517             temp[i*2]=*p++;
1518             temp[i*2+1]=*p++;
1519         }
1520         else
1521         {
1522             temp[i*2]=*p++;
1523             temp[i*2+1]=0;
1524         }
1525     }
1526
1527     /* repack it in the reverse order */
1528     p=str;
1529     for(i=len-1; i>=0; i--)
1530     {
1531         if(MSVCRT_isleadbyte(temp[i*2]))
1532         {
1533             *p++=temp[i*2];
1534             *p++=temp[i*2+1];
1535         }
1536         else
1537         {
1538             *p++=temp[i*2];
1539         }
1540     }
1541
1542     MSVCRT_free(temp);
1543
1544     return str;
1545 }
1546
1547 /*********************************************************************
1548  *              _mbspbrk (MSVCRT.@)
1549  */
1550 unsigned char* CDECL _mbspbrk(const unsigned char* str, const unsigned char* accept)
1551 {
1552     const unsigned char* p;
1553
1554     while(*str)
1555     {
1556         for(p = accept; *p; p += (MSVCRT_isleadbyte(*p)?2:1) )
1557         {
1558             if (*p == *str)
1559                 if( !MSVCRT_isleadbyte(*p) || ( *(p+1) == *(str+1) ) )
1560                      return (unsigned char*)str;
1561         }
1562         str += (MSVCRT_isleadbyte(*str)?2:1);
1563     }
1564     return NULL;
1565 }
1566
1567
1568 /*
1569  * Functions depending on locale codepage
1570  */
1571
1572 /*********************************************************************
1573  *              mblen(MSVCRT.@)
1574  * REMARKS
1575  *  Unlike most of the multibyte string functions this function uses
1576  *  the locale codepage, not the codepage set by _setmbcp
1577  */
1578 int CDECL MSVCRT_mblen(const char* str, MSVCRT_size_t size)
1579 {
1580   if (str && *str && size)
1581   {
1582     if(MSVCRT___mb_cur_max == 1)
1583       return 1; /* ASCII CP */
1584
1585     return !MSVCRT_isleadbyte(*str) ? 1 : (size>1 ? 2 : -1);
1586   }
1587   return 0;
1588 }
1589
1590 /*********************************************************************
1591  *              _mbstrlen(MSVCRT.@)
1592  * REMARKS
1593  *  Unlike most of the multibyte string functions this function uses
1594  *  the locale codepage, not the codepage set by _setmbcp
1595  */
1596 MSVCRT_size_t CDECL _mbstrlen(const char* str)
1597 {
1598   if(MSVCRT___mb_cur_max > 1)
1599   {
1600     MSVCRT_size_t len = 0;
1601     while(*str)
1602     {
1603       /* FIXME: According to the documentation we are supposed to test for
1604        * multi-byte character validity. Whatever that means
1605        */
1606       str += MSVCRT_isleadbyte(*str) ? 2 : 1;
1607       len++;
1608     }
1609     return len;
1610   }
1611   return strlen(str); /* ASCII CP */
1612 }