dlls/msvcrt/string.c

   1 /*
   2  * MSVCRT string functions
   3  *
   4  * Copyright 1996,1998 Marcus Meissner
   5  * Copyright 1996 Jukka Iivonen
   6  * Copyright 1997,2000 Uwe Bonnes
   7  * Copyright 2000 Jon Griffiths
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #define _ISOC99_SOURCE
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <math.h>
  31 #include <limits.h>
  32 #include <errno.h>
  33 #include "msvcrt.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  37
  38 /*********************************************************************
  39  *              _mbsdup (MSVCRT.@)
  40  *              _strdup (MSVCRT.@)
  41  */
  42 char* CDECL _strdup(const char* str)
  43 {
  44     if(str)
  45     {
  46       char * ret = MSVCRT_malloc(strlen(str)+1);
  47       if (ret) strcpy( ret, str );
  48       return ret;
  49     }
  50     else return 0;
  51 }
  52
  53 /*********************************************************************
  54  *              _strlwr_s (MSVCRT.@)
  55  */
  56 int CDECL _strlwr_s(char *str, MSVCRT_size_t len)
  57 {
  58     char *ptr = str;
  59
  60     if (!str || !len)
  61     {
  62         *MSVCRT__errno() = MSVCRT_EINVAL;
  63         return MSVCRT_EINVAL;
  64     }
  65
  66     while (len && *ptr)
  67     {
  68         len--;
  69         ptr++;
  70     }
  71
  72     if (!len)
  73     {
  74         str[0] = '\0';
  75         *MSVCRT__errno() = MSVCRT_EINVAL;
  76         return MSVCRT_EINVAL;
  77     }
  78
  79     while (*str)
  80     {
  81         *str = tolower(*str);
  82         str++;
  83     }
  84
  85     return 0;
  86 }
  87
  88 /*********************************************************************
  89  *              _strnset (MSVCRT.@)
  90  */
  91 char* CDECL MSVCRT__strnset(char* str, int value, MSVCRT_size_t len)
  92 {
  93   if (len > 0 && str)
  94     while (*str && len--)
  95       *str++ = value;
  96   return str;
  97 }
  98
  99 /*********************************************************************
 100  *              _strrev (MSVCRT.@)
 101  */
 102 char* CDECL _strrev(char* str)
 103 {
 104   char * p1;
 105   char * p2;
 106
 107   if (str && *str)
 108     for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
 109     {
 110       *p1 ^= *p2;
 111       *p2 ^= *p1;
 112       *p1 ^= *p2;
 113     }
 114
 115   return str;
 116 }
 117
 118 /*********************************************************************
 119  *              _strset (MSVCRT.@)
 120  */
 121 char* CDECL _strset(char* str, int value)
 122 {
 123   char *ptr = str;
 124   while (*ptr)
 125     *ptr++ = value;
 126
 127   return str;
 128 }
 129
 130 /*********************************************************************
 131  *              strtok  (MSVCRT.@)
 132  */
 133 char * CDECL MSVCRT_strtok( char *str, const char *delim )
 134 {
 135     thread_data_t *data = msvcrt_get_thread_data();
 136     char *ret;
 137
 138     if (!str)
 139         if (!(str = data->strtok_next)) return NULL;
 140
 141     while (*str && strchr( delim, *str )) str++;
 142     if (!*str) return NULL;
 143     ret = str++;
 144     while (*str && !strchr( delim, *str )) str++;
 145     if (*str) *str++ = 0;
 146     data->strtok_next = str;
 147     return ret;
 148 }
 149
 150 /*********************************************************************
 151  *              strtok_s  (MSVCRT.@)
 152  */
 153 char * CDECL MSVCRT_strtok_s(char *str, const char *delim, char **ctx)
 154 {
 155     if (!MSVCRT_CHECK_PMT(delim != NULL) || !MSVCRT_CHECK_PMT(ctx != NULL) ||
 156         !MSVCRT_CHECK_PMT(str != NULL || *ctx != NULL)) {
 157         *MSVCRT__errno() = MSVCRT_EINVAL;
 158         return NULL;
 159     }
 160
 161     if(!str)
 162         str = *ctx;
 163
 164     while(*str && strchr(delim, *str))
 165         str++;
 166     if(!*str)
 167         return NULL;
 168
 169     *ctx = str+1;
 170     while(**ctx && !strchr(delim, **ctx))
 171         (*ctx)++;
 172     if(**ctx)
 173         *(*ctx)++ = 0;
 174
 175     return str;
 176 }
 177
 178 /*********************************************************************
 179  *              _swab (MSVCRT.@)
 180  */
 181 void CDECL MSVCRT__swab(char* src, char* dst, int len)
 182 {
 183   if (len > 1)
 184   {
 185     len = (unsigned)len >> 1;
 186
 187     while (len--) {
 188       char s0 = src[0];
 189       char s1 = src[1];
 190       *dst++ = s1;
 191       *dst++ = s0;
 192       src = src + 2;
 193     }
 194   }
 195 }
 196
 197 /*********************************************************************
 198  *              strtod_l  (MSVCRT.@)
 199  */
 200 double CDECL MSVCRT_strtod_l( const char *str, char **end, MSVCRT__locale_t locale)
 201 {
 202     unsigned __int64 d=0, hlp;
 203     unsigned fpcontrol;
 204     int exp=0, sign=1;
 205     const char *p;
 206     double ret;
 207     BOOL found_digit = FALSE;
 208
 209     if (!MSVCRT_CHECK_PMT(str != NULL)) {
 210         *MSVCRT__errno() = MSVCRT_EINVAL;
 211         return 0;
 212     }
 213
 214     if(!locale)
 215         locale = get_locale();
 216
 217     /* FIXME: use *_l functions */
 218     p = str;
 219     while(isspace(*p))
 220         p++;
 221
 222     if(*p == '-') {
 223         sign = -1;
 224         p++;
 225     } else  if(*p == '+')
 226         p++;
 227
 228     while(isdigit(*p)) {
 229         found_digit = TRUE;
 230         hlp = d*10+*(p++)-'0';
 231         if(d>MSVCRT_UI64_MAX/10 || hlp<d) {
 232             exp++;
 233             break;
 234         } else
 235             d = hlp;
 236     }
 237     while(isdigit(*p)) {
 238         exp++;
 239         p++;
 240     }
 241
 242     if(*p == *locale->locinfo->lconv->decimal_point)
 243         p++;
 244
 245     while(isdigit(*p)) {
 246         found_digit = TRUE;
 247         hlp = d*10+*(p++)-'0';
 248         if(d>MSVCRT_UI64_MAX/10 || hlp<d)
 249             break;
 250
 251         d = hlp;
 252         exp--;
 253     }
 254     while(isdigit(*p))
 255         p++;
 256
 257     if(!found_digit) {
 258         if(end)
 259             *end = (char*)str;
 260         return 0.0;
 261     }
 262
 263     if(*p=='e' || *p=='E' || *p=='d' || *p=='D') {
 264         int e=0, s=1;
 265
 266         p++;
 267         if(*p == '-') {
 268             s = -1;
 269             p++;
 270         } else if(*p == '+')
 271             p++;
 272
 273         if(isdigit(*p)) {
 274             while(isdigit(*p)) {
 275                 if(e>INT_MAX/10 || (e=e*10+*p-'0')<0)
 276                     e = INT_MAX;
 277                 p++;
 278             }
 279             e *= s;
 280
 281             if(exp<0 && e<0 && exp+e>=0) exp = INT_MIN;
 282             else if(exp>0 && e>0 && exp+e<0) exp = INT_MAX;
 283             else exp += e;
 284         } else {
 285             if(*p=='-' || *p=='+')
 286                 p--;
 287             p--;
 288         }
 289     }
 290
 291     fpcontrol = _control87(0, 0);
 292     _control87(MSVCRT__EM_DENORMAL|MSVCRT__EM_INVALID|MSVCRT__EM_ZERODIVIDE
 293             |MSVCRT__EM_OVERFLOW|MSVCRT__EM_UNDERFLOW|MSVCRT__EM_INEXACT, 0xffffffff);
 294
 295     if(exp>0)
 296         ret = (double)sign*d*pow(10, exp);
 297     else
 298         ret = (double)sign*d/pow(10, -exp);
 299
 300     _control87(fpcontrol, 0xffffffff);
 301
 302     if((d && ret==0.0) || isinf(ret))
 303         *MSVCRT__errno() = MSVCRT_ERANGE;
 304
 305     if(end)
 306         *end = (char*)p;
 307
 308     return ret;
 309 }
 310
 311 /*********************************************************************
 312  *              strtod  (MSVCRT.@)
 313  */
 314 double CDECL MSVCRT_strtod( const char *str, char **end )
 315 {
 316     return MSVCRT_strtod_l( str, end, NULL );
 317 }
 318
 319 /*********************************************************************
 320  *              atof  (MSVCRT.@)
 321  */
 322 double CDECL MSVCRT_atof( const char *str )
 323 {
 324     return MSVCRT_strtod_l(str, NULL, NULL);
 325 }
 326
 327 /*********************************************************************
 328  *              _atof_l  (MSVCRT.@)
 329  */
 330 double CDECL MSVCRT__atof_l( const char *str, MSVCRT__locale_t locale)
 331 {
 332     return MSVCRT_strtod_l(str, NULL, locale);
 333 }
 334
 335 /*********************************************************************
 336  *              _atoflt_l  (MSVCRT.@)
 337  */
 338 int CDECL MSVCRT__atoflt_l( MSVCRT__CRT_FLOAT *value, char *str, MSVCRT__locale_t locale)
 339 {
 340     unsigned __int64 d=0, hlp;
 341     unsigned fpcontrol;
 342     int exp=0, sign=1;
 343     const char *p;
 344     int ret=0;
 345     BOOL found_digit = FALSE;
 346
 347     if(!locale)
 348         locale = get_locale();
 349
 350     /* FIXME: use *_l functions */
 351     p = str;
 352     while(isspace(*p))
 353         p++;
 354
 355     if(*p == '-') {
 356         sign = -1;
 357         p++;
 358     } else if(*p == '+')
 359         p++;
 360
 361     while(isdigit(*p)) {
 362         found_digit = TRUE;
 363         hlp = d*10+*(p++)-'0';
 364         if(d>MSVCRT_UI64_MAX/10 || hlp<d) {
 365             exp++;
 366             break;
 367         } else
 368             d = hlp;
 369     }
 370     while(isdigit(*p)) {
 371         exp++;
 372         p++;
 373     }
 374
 375     if(*p == *locale->locinfo->lconv->decimal_point)
 376         p++;
 377
 378     while(isdigit(*p)) {
 379         found_digit = TRUE;
 380         hlp = d*10+*(p++)-'0';
 381         if(d>MSVCRT_UI64_MAX/10 || hlp<d)
 382             break;
 383
 384         d = hlp;
 385         exp--;
 386     }
 387     while(isdigit(*p))
 388         p++;
 389
 390     if(!found_digit) {
 391         value->f = 0.0;
 392         return 0;
 393     }
 394
 395     if(*p=='e' || *p=='E' || *p=='d' || *p=='D') {
 396         int e=0, s=1;
 397
 398         p++;
 399         if(*p == '-') {
 400             s = -1;
 401             p++;
 402         } else if(*p == '+')
 403             p++;
 404
 405         if(isdigit(*p)) {
 406             while(isdigit(*p)) {
 407                 if(e>INT_MAX/10 || (e=e*10+*p-'0')<0)
 408                     e = INT_MAX;
 409                 p++;
 410             }
 411             e *= s;
 412
 413             if(exp<0 && e<0 && exp+e>=0) exp = INT_MIN;
 414             else if(exp>0 && e>0 && exp+e<0) exp = INT_MAX;
 415             else exp += e;
 416         } else {
 417             if(*p=='-' || *p=='+')
 418                 p--;
 419             p--;
 420         }
 421     }
 422
 423     fpcontrol = _control87(0, 0);
 424     _control87(MSVCRT__EM_DENORMAL|MSVCRT__EM_INVALID|MSVCRT__EM_ZERODIVIDE
 425             |MSVCRT__EM_OVERFLOW|MSVCRT__EM_UNDERFLOW|MSVCRT__EM_INEXACT, 0xffffffff);
 426
 427     if(exp>0)
 428         value->f = (float)sign*d*powf(10, exp);
 429     else
 430         value->f = (float)sign*d/powf(10, -exp);
 431
 432     _control87(fpcontrol, 0xffffffff);
 433
 434     if((d && value->f==0.0) || isinf(value->f))
 435         ret = exp > 0 ? MSVCRT__OVERFLOW : MSVCRT__UNDERFLOW;
 436
 437     return ret;
 438 }
 439
 440 /*********************************************************************
 441  *              strcoll (MSVCRT.@)
 442  */
 443 int CDECL MSVCRT_strcoll( const char* str1, const char* str2 )
 444 {
 445     /* FIXME: handle Windows locale */
 446     return strcoll( str1, str2 );
 447 }
 448
 449 /*********************************************************************
 450  *      strcpy_s (MSVCRT.@)
 451  */
 452 int CDECL MSVCRT_strcpy_s( char* dst, MSVCRT_size_t elem, const char* src )
 453 {
 454     MSVCRT_size_t i;
 455     if(!elem) return MSVCRT_EINVAL;
 456     if(!dst) return MSVCRT_EINVAL;
 457     if(!src)
 458     {
 459         dst[0] = '\0';
 460         return MSVCRT_EINVAL;
 461     }
 462
 463     for(i = 0; i < elem; i++)
 464     {
 465         if((dst[i] = src[i]) == '\0') return 0;
 466     }
 467     dst[0] = '\0';
 468     return MSVCRT_ERANGE;
 469 }
 470
 471 /*********************************************************************
 472  *      strcat_s (MSVCRT.@)
 473  */
 474 int CDECL MSVCRT_strcat_s( char* dst, MSVCRT_size_t elem, const char* src )
 475 {
 476     MSVCRT_size_t i, j;
 477     if(!dst) return MSVCRT_EINVAL;
 478     if(elem == 0) return MSVCRT_EINVAL;
 479     if(!src)
 480     {
 481         dst[0] = '\0';
 482         return MSVCRT_EINVAL;
 483     }
 484
 485     for(i = 0; i < elem; i++)
 486     {
 487         if(dst[i] == '\0')
 488         {
 489             for(j = 0; (j + i) < elem; j++)
 490             {
 491                 if((dst[j + i] = src[j]) == '\0') return 0;
 492             }
 493         }
 494     }
 495     /* Set the first element to 0, not the first element after the skipped part */
 496     dst[0] = '\0';
 497     return MSVCRT_ERANGE;
 498 }
 499
 500 /*********************************************************************
 501  *      strncat_s (MSVCRT.@)
 502  */
 503 int CDECL MSVCRT_strncat_s( char* dst, MSVCRT_size_t elem, const char* src, MSVCRT_size_t count )
 504 {
 505     MSVCRT_size_t i, j;
 506     if(!MSVCRT_CHECK_PMT(dst != 0) || !MSVCRT_CHECK_PMT(elem != 0))
 507         return MSVCRT_EINVAL;
 508     if(!MSVCRT_CHECK_PMT(src != 0))
 509     {
 510         dst[0] = '\0';
 511         return MSVCRT_EINVAL;
 512     }
 513
 514     for(i = 0; i < elem; i++)
 515     {
 516         if(dst[i] == '\0')
 517         {
 518             for(j = 0; (j + i) < elem; j++)
 519             {
 520                 if(count == MSVCRT__TRUNCATE && j + i == elem - 1)
 521                 {
 522                     dst[j + i] = '\0';
 523                     return MSVCRT_STRUNCATE;
 524                 }
 525                 if(j == count || (dst[j + i] = src[j]) == '\0')
 526                 {
 527                     dst[j + i] = '\0';
 528                     return 0;
 529                 }
 530             }
 531         }
 532     }
 533     /* Set the first element to 0, not the first element after the skipped part */
 534     dst[0] = '\0';
 535     return MSVCRT_ERANGE;
 536 }
 537
 538 /*********************************************************************
 539  *              strxfrm (MSVCRT.@)
 540  */
 541 MSVCRT_size_t CDECL MSVCRT_strxfrm( char *dest, const char *src, MSVCRT_size_t len )
 542 {
 543     /* FIXME: handle Windows locale */
 544     return strxfrm( dest, src, len );
 545 }
 546
 547 /*********************************************************************
 548  *              _stricoll (MSVCRT.@)
 549  */
 550 int CDECL MSVCRT__stricoll( const char* str1, const char* str2 )
 551 {
 552   /* FIXME: handle collates */
 553   TRACE("str1 %s str2 %s\n", debugstr_a(str1), debugstr_a(str2));
 554   return lstrcmpiA( str1, str2 );
 555 }
 556
 557 /********************************************************************
 558  *              _atoldbl (MSVCRT.@)
 559  */
 560 int CDECL MSVCRT__atoldbl(MSVCRT__LDOUBLE *value, const char *str)
 561 {
 562   /* FIXME needs error checking for huge/small values */
 563 #ifdef HAVE_STRTOLD
 564   long double ld;
 565   TRACE("str %s value %p\n",str,value);
 566   ld = strtold(str,0);
 567   memcpy(value, &ld, 10);
 568 #else
 569   FIXME("stub, str %s value %p\n",str,value);
 570 #endif
 571   return 0;
 572 }
 573
 574 /********************************************************************
 575  *              __STRINGTOLD (MSVCRT.@)
 576  */
 577 int CDECL __STRINGTOLD( MSVCRT__LDOUBLE *value, char **endptr, const char *str, int flags )
 578 {
 579 #ifdef HAVE_STRTOLD
 580     long double ld;
 581     FIXME("%p %p %s %x partial stub\n", value, endptr, str, flags );
 582     ld = strtold(str,0);
 583     memcpy(value, &ld, 10);
 584 #else
 585     FIXME("%p %p %s %x stub\n", value, endptr, str, flags );
 586 #endif
 587     return 0;
 588 }
 589
 590 /******************************************************************
 591  *              strtol (MSVCRT.@)
 592  */
 593 MSVCRT_long CDECL MSVCRT_strtol(const char* nptr, char** end, int base)
 594 {
 595     /* wrapper to forward libc error code to msvcrt's error codes */
 596     long ret;
 597
 598     errno = 0;
 599     ret = strtol(nptr, end, base);
 600     switch (errno)
 601     {
 602     case ERANGE:        *MSVCRT__errno() = MSVCRT_ERANGE;       break;
 603     case EINVAL:        *MSVCRT__errno() = MSVCRT_EINVAL;       break;
 604     default:
 605         /* cope with the fact that we may use 64bit long integers on libc
 606          * while msvcrt always uses 32bit long integers
 607          */
 608         if (ret > MSVCRT_LONG_MAX)
 609         {
 610             ret = MSVCRT_LONG_MAX;
 611             *MSVCRT__errno() = MSVCRT_ERANGE;
 612         }
 613         else if (ret < -MSVCRT_LONG_MAX - 1)
 614         {
 615             ret = -MSVCRT_LONG_MAX - 1;
 616             *MSVCRT__errno() = MSVCRT_ERANGE;
 617         }
 618         break;
 619     }
 620
 621     return ret;
 622 }
 623
 624 /******************************************************************
 625  *              strtoul (MSVCRT.@)
 626  */
 627 MSVCRT_ulong CDECL MSVCRT_strtoul(const char* nptr, char** end, int base)
 628 {
 629     /* wrapper to forward libc error code to msvcrt's error codes */
 630     unsigned long ret;
 631
 632     errno = 0;
 633     ret = strtoul(nptr, end, base);
 634     switch (errno)
 635     {
 636     case ERANGE:        *MSVCRT__errno() = MSVCRT_ERANGE;       break;
 637     case EINVAL:        *MSVCRT__errno() = MSVCRT_EINVAL;       break;
 638     default:
 639         /* cope with the fact that we may use 64bit long integers on libc
 640          * while msvcrt always uses 32bit long integers
 641          */
 642         if (ret > MSVCRT_ULONG_MAX)
 643         {
 644             ret = MSVCRT_ULONG_MAX;
 645             *MSVCRT__errno() = MSVCRT_ERANGE;
 646         }
 647         break;
 648     }
 649
 650     return ret;
 651 }
 652
 653 /******************************************************************
 654  *              strnlen (MSVCRT.@)
 655  */
 656 MSVCRT_size_t CDECL MSVCRT_strnlen(const char *s, MSVCRT_size_t maxlen)
 657 {
 658     MSVCRT_size_t i;
 659
 660     for(i=0; i<maxlen; i++)
 661         if(!s[i]) break;
 662
 663     return i;
 664 }
 665
 666 /*********************************************************************
 667  *  _strtoi64_l (MSVCRT.@)
 668  *
 669  * FIXME: locale parameter is ignored
 670  */
 671 __int64 CDECL MSVCRT_strtoi64_l(const char *nptr, char **endptr, int base, MSVCRT__locale_t locale)
 672 {
 673     BOOL negative = FALSE;
 674     __int64 ret = 0;
 675
 676     TRACE("(%s %p %d %p)\n", nptr, endptr, base, locale);
 677
 678     if (!MSVCRT_CHECK_PMT(nptr != NULL) || !MSVCRT_CHECK_PMT(base == 0 || base >= 2) ||
 679         !MSVCRT_CHECK_PMT(base <= 36)) {
 680         return 0;
 681     }
 682
 683     while(isspace(*nptr)) nptr++;
 684
 685     if(*nptr == '-') {
 686         negative = TRUE;
 687         nptr++;
 688     } else if(*nptr == '+')
 689         nptr++;
 690
 691     if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
 692         base = 16;
 693         nptr += 2;
 694     }
 695
 696     if(base == 0) {
 697         if(*nptr=='0')
 698             base = 8;
 699         else
 700             base = 10;
 701     }
 702
 703     while(*nptr) {
 704         char cur = tolower(*nptr);
 705         int v;
 706
 707         if(isdigit(cur)) {
 708             if(cur >= '0'+base)
 709                 break;
 710             v = cur-'0';
 711         } else {
 712             if(cur<'a' || cur>='a'+base-10)
 713                 break;
 714             v = cur-'a'+10;
 715         }
 716
 717         if(negative)
 718             v = -v;
 719
 720         nptr++;
 721
 722         if(!negative && (ret>MSVCRT_I64_MAX/base || ret*base>MSVCRT_I64_MAX-v)) {
 723             ret = MSVCRT_I64_MAX;
 724             *MSVCRT__errno() = MSVCRT_ERANGE;
 725         } else if(negative && (ret<MSVCRT_I64_MIN/base || ret*base<MSVCRT_I64_MIN-v)) {
 726             ret = MSVCRT_I64_MIN;
 727             *MSVCRT__errno() = MSVCRT_ERANGE;
 728         } else
 729             ret = ret*base + v;
 730     }
 731
 732     if(endptr)
 733         *endptr = (char*)nptr;
 734
 735     return ret;
 736 }
 737
 738 /*********************************************************************
 739  *  _strtoi64 (MSVCRT.@)
 740  */
 741 __int64 CDECL MSVCRT_strtoi64(const char *nptr, char **endptr, int base)
 742 {
 743     return MSVCRT_strtoi64_l(nptr, endptr, base, NULL);
 744 }
 745
 746 /*********************************************************************
 747  *  _strtoui64_l (MSVCRT.@)
 748  *
 749  * FIXME: locale parameter is ignored
 750  */
 751 unsigned __int64 CDECL MSVCRT_strtoui64_l(const char *nptr, char **endptr, int base, MSVCRT__locale_t locale)
 752 {
 753     BOOL negative = FALSE;
 754     unsigned __int64 ret = 0;
 755
 756     TRACE("(%s %p %d %p)\n", nptr, endptr, base, locale);
 757
 758     if (!MSVCRT_CHECK_PMT(nptr != NULL) || !MSVCRT_CHECK_PMT(base == 0 || base >= 2) ||
 759         !MSVCRT_CHECK_PMT(base <= 36)) {
 760         return 0;
 761     }
 762
 763     while(isspace(*nptr)) nptr++;
 764
 765     if(*nptr == '-') {
 766         negative = TRUE;
 767         nptr++;
 768     } else if(*nptr == '+')
 769         nptr++;
 770
 771     if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
 772         base = 16;
 773         nptr += 2;
 774     }
 775
 776     if(base == 0) {
 777         if(*nptr=='0')
 778             base = 8;
 779         else
 780             base = 10;
 781     }
 782
 783     while(*nptr) {
 784         char cur = tolower(*nptr);
 785         int v;
 786
 787         if(isdigit(cur)) {
 788             if(cur >= '0'+base)
 789                 break;
 790             v = *nptr-'0';
 791         } else {
 792             if(cur<'a' || cur>='a'+base-10)
 793                 break;
 794             v = cur-'a'+10;
 795         }
 796
 797         nptr++;
 798
 799         if(ret>MSVCRT_UI64_MAX/base || ret*base>MSVCRT_UI64_MAX-v) {
 800             ret = MSVCRT_UI64_MAX;
 801             *MSVCRT__errno() = MSVCRT_ERANGE;
 802         } else
 803             ret = ret*base + v;
 804     }
 805
 806     if(endptr)
 807         *endptr = (char*)nptr;
 808
 809     return negative ? -ret : ret;
 810 }
 811
 812 /*********************************************************************
 813  *  _strtoui64 (MSVCRT.@)
 814  */
 815 unsigned __int64 CDECL MSVCRT_strtoui64(const char *nptr, char **endptr, int base)
 816 {
 817     return MSVCRT_strtoui64_l(nptr, endptr, base, NULL);
 818 }
 819
 820 /*********************************************************************
 821  *  _ltoa_s (MSVCRT.@)
 822  */
 823 int CDECL _ltoa_s(MSVCRT_long value, char *str, MSVCRT_size_t size, int radix)
 824 {
 825     MSVCRT_ulong val;
 826     unsigned int digit;
 827     int is_negative;
 828     char buffer[33], *pos;
 829     size_t len;
 830
 831     if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
 832         !MSVCRT_CHECK_PMT(radix >= 2) || !MSVCRT_CHECK_PMT(radix <= 36))
 833     {
 834         if (str && size)
 835             str[0] = '\0';
 836
 837         *MSVCRT__errno() = MSVCRT_EINVAL;
 838         return MSVCRT_EINVAL;
 839     }
 840
 841     if (value < 0 && radix == 10)
 842     {
 843         is_negative = 1;
 844         val = -value;
 845     }
 846     else
 847     {
 848         is_negative = 0;
 849         val = value;
 850     }
 851
 852     pos = buffer + 32;
 853     *pos = '\0';
 854
 855     do
 856     {
 857         digit = val % radix;
 858         val /= radix;
 859
 860         if (digit < 10)
 861             *--pos = '0' + digit;
 862         else
 863             *--pos = 'a' + digit - 10;
 864     }
 865     while (val != 0);
 866
 867     if (is_negative)
 868         *--pos = '-';
 869
 870     len = buffer + 33 - pos;
 871     if (len > size)
 872     {
 873         size_t i;
 874         char *p = str;
 875
 876         /* Copy the temporary buffer backwards up to the available number of
 877          * characters. Don't copy the negative sign if present. */
 878
 879         if (is_negative)
 880         {
 881             p++;
 882             size--;
 883         }
 884
 885         for (pos = buffer + 31, i = 0; i < size; i++)
 886             *p++ = *pos--;
 887
 888         str[0] = '\0';
 889         MSVCRT_INVALID_PMT("str[size] is too small");
 890         *MSVCRT__errno() = MSVCRT_ERANGE;
 891         return MSVCRT_ERANGE;
 892     }
 893
 894     memcpy(str, pos, len);
 895     return 0;
 896 }
 897
 898 /*********************************************************************
 899  *  _ltow_s (MSVCRT.@)
 900  */
 901 int CDECL _ltow_s(MSVCRT_long value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
 902 {
 903     MSVCRT_ulong val;
 904     unsigned int digit;
 905     int is_negative;
 906     MSVCRT_wchar_t buffer[33], *pos;
 907     size_t len;
 908
 909     if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
 910         !MSVCRT_CHECK_PMT(radix >= 2) || !MSVCRT_CHECK_PMT(radix <= 36))
 911     {
 912         if (str && size)
 913             str[0] = '\0';
 914
 915         *MSVCRT__errno() = MSVCRT_EINVAL;
 916         return MSVCRT_EINVAL;
 917     }
 918
 919     if (value < 0 && radix == 10)
 920     {
 921         is_negative = 1;
 922         val = -value;
 923     }
 924     else
 925     {
 926         is_negative = 0;
 927         val = value;
 928     }
 929
 930     pos = buffer + 32;
 931     *pos = '\0';
 932
 933     do
 934     {
 935         digit = val % radix;
 936         val /= radix;
 937
 938         if (digit < 10)
 939             *--pos = '0' + digit;
 940         else
 941             *--pos = 'a' + digit - 10;
 942     }
 943     while (val != 0);
 944
 945     if (is_negative)
 946         *--pos = '-';
 947
 948     len = buffer + 33 - pos;
 949     if (len > size)
 950     {
 951         size_t i;
 952         MSVCRT_wchar_t *p = str;
 953
 954         /* Copy the temporary buffer backwards up to the available number of
 955          * characters. Don't copy the negative sign if present. */
 956
 957         if (is_negative)
 958         {
 959             p++;
 960             size--;
 961         }
 962
 963         for (pos = buffer + 31, i = 0; i < size; i++)
 964             *p++ = *pos--;
 965
 966         MSVCRT_INVALID_PMT("str[size] is too small");
 967         str[0] = '\0';
 968         *MSVCRT__errno() = MSVCRT_ERANGE;
 969         return MSVCRT_ERANGE;
 970     }
 971
 972     memcpy(str, pos, len * sizeof(MSVCRT_wchar_t));
 973     return 0;
 974 }
 975
 976 /*********************************************************************
 977  *  _itoa_s (MSVCRT.@)
 978  */
 979 int CDECL _itoa_s(int value, char *str, MSVCRT_size_t size, int radix)
 980 {
 981     return _ltoa_s(value, str, size, radix);
 982 }
 983
 984 /*********************************************************************
 985  *  _itow_s (MSVCRT.@)
 986  */
 987 int CDECL _itow_s(int value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
 988 {
 989     return _ltow_s(value, str, size, radix);
 990 }
 991
 992 /*********************************************************************
 993  *  _ui64toa_s (MSVCRT.@)
 994  */
 995 int CDECL MSVCRT__ui64toa_s(unsigned __int64 value, char *str,
 996         MSVCRT_size_t size, int radix)
 997 {
 998     char buffer[65], *pos;
 999     int digit;
1000
1001     if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
1002         !MSVCRT_CHECK_PMT(radix>=2) || !MSVCRT_CHECK_PMT(radix<=36)) {
1003         *MSVCRT__errno() = MSVCRT_EINVAL;
1004         return MSVCRT_EINVAL;
1005     }
1006
1007     pos = buffer+64;
1008     *pos = '\0';
1009
1010     do {
1011         digit = value%radix;
1012         value /= radix;
1013
1014         if(digit < 10)
1015             *--pos = '0'+digit;
1016         else
1017             *--pos = 'a'+digit-10;
1018     }while(value != 0);
1019
1020     if(buffer-pos+65 > size) {
1021         MSVCRT_INVALID_PMT("str[size] is too small");
1022         *MSVCRT__errno() = MSVCRT_EINVAL;
1023         return MSVCRT_EINVAL;
1024     }
1025
1026     memcpy(str, pos, buffer-pos+65);
1027     return 0;
1028 }
1029
1030 /*********************************************************************
1031  *      _ui64tow_s  (MSVCRT.@)
1032  */
1033 int CDECL MSVCRT__ui64tow_s( unsigned __int64 value, MSVCRT_wchar_t *str,
1034                              MSVCRT_size_t size, int radix )
1035 {
1036     MSVCRT_wchar_t buffer[65], *pos;
1037     int digit;
1038
1039     if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
1040         !MSVCRT_CHECK_PMT(radix>=2) || !MSVCRT_CHECK_PMT(radix<=36)) {
1041         *MSVCRT__errno() = MSVCRT_EINVAL;
1042         return MSVCRT_EINVAL;
1043     }
1044
1045     pos = &buffer[64];
1046     *pos = '\0';
1047
1048     do {
1049         digit = value % radix;
1050         value = value / radix;
1051         if (digit < 10)
1052             *--pos = '0' + digit;
1053         else
1054             *--pos = 'a' + digit - 10;
1055     } while (value != 0);
1056
1057     if(buffer-pos+65 > size) {
1058         MSVCRT_INVALID_PMT("str[size] is too small");
1059         *MSVCRT__errno() = MSVCRT_EINVAL;
1060         return MSVCRT_EINVAL;
1061     }
1062
1063     memcpy(str, pos, buffer-pos+65);
1064     return 0;
1065 }
1066
1067 /*********************************************************************
1068  *  _ultoa_s (MSVCRT.@)
1069  */
1070 int CDECL _ultoa_s(MSVCRT_ulong value, char *str, MSVCRT_size_t size, int radix)
1071 {
1072     MSVCRT_ulong digit;
1073     char buffer[33], *pos;
1074     size_t len;
1075
1076     if (!str || !size || radix < 2 || radix > 36)
1077     {
1078         if (str && size)
1079             str[0] = '\0';
1080
1081         *MSVCRT__errno() = MSVCRT_EINVAL;
1082         return MSVCRT_EINVAL;
1083     }
1084
1085     pos = buffer + 32;
1086     *pos = '\0';
1087
1088     do
1089     {
1090         digit = value % radix;
1091         value /= radix;
1092
1093         if (digit < 10)
1094             *--pos = '0' + digit;
1095         else
1096             *--pos = 'a' + digit - 10;
1097     }
1098     while (value != 0);
1099
1100     len = buffer + 33 - pos;
1101     if (len > size)
1102     {
1103         size_t i;
1104         char *p = str;
1105
1106         /* Copy the temporary buffer backwards up to the available number of
1107          * characters. */
1108
1109         for (pos = buffer + 31, i = 0; i < size; i++)
1110             *p++ = *pos--;
1111
1112         str[0] = '\0';
1113         *MSVCRT__errno() = MSVCRT_ERANGE;
1114         return MSVCRT_ERANGE;
1115     }
1116
1117     memcpy(str, pos, len);
1118     return 0;
1119 }
1120
1121 /*********************************************************************
1122  *  _i64toa_s (MSVCRT.@)
1123  */
1124 int CDECL _i64toa_s(__int64 value, char *str, MSVCRT_size_t size, int radix)
1125 {
1126     unsigned __int64 val;
1127     unsigned int digit;
1128     int is_negative;
1129     char buffer[65], *pos;
1130     size_t len;
1131
1132     if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
1133         !MSVCRT_CHECK_PMT(radix >= 2) || !MSVCRT_CHECK_PMT(radix <= 36))
1134     {
1135         if (str && size)
1136             str[0] = '\0';
1137
1138         *MSVCRT__errno() = MSVCRT_EINVAL;
1139         return MSVCRT_EINVAL;
1140     }
1141
1142     if (value < 0 && radix == 10)
1143     {
1144         is_negative = 1;
1145         val = -value;
1146     }
1147     else
1148     {
1149         is_negative = 0;
1150         val = value;
1151     }
1152
1153     pos = buffer + 64;
1154     *pos = '\0';
1155
1156     do
1157     {
1158         digit = val % radix;
1159         val /= radix;
1160
1161         if (digit < 10)
1162             *--pos = '0' + digit;
1163         else
1164             *--pos = 'a' + digit - 10;
1165     }
1166     while (val != 0);
1167
1168     if (is_negative)
1169         *--pos = '-';
1170
1171     len = buffer + 65 - pos;
1172     if (len > size)
1173     {
1174         size_t i;
1175         char *p = str;
1176
1177         /* Copy the temporary buffer backwards up to the available number of
1178          * characters. Don't copy the negative sign if present. */
1179
1180         if (is_negative)
1181         {
1182             p++;
1183             size--;
1184         }
1185
1186         for (pos = buffer + 63, i = 0; i < size; i++)
1187             *p++ = *pos--;
1188
1189         str[0] = '\0';
1190         MSVCRT_INVALID_PMT("str[size] is too small");
1191         *MSVCRT__errno() = MSVCRT_ERANGE;
1192         return MSVCRT_ERANGE;
1193     }
1194
1195     memcpy(str, pos, len);
1196     return 0;
1197 }
1198
1199 /*********************************************************************
1200  *  _i64tow_s (MSVCRT.@)
1201  */
1202 int CDECL _i64tow_s(__int64 value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
1203 {
1204     unsigned __int64 val;
1205     unsigned int digit;
1206     int is_negative;
1207     MSVCRT_wchar_t buffer[65], *pos;
1208     size_t len;
1209
1210     if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
1211         !MSVCRT_CHECK_PMT(radix >= 2) || !MSVCRT_CHECK_PMT(radix <= 36))
1212     {
1213         if (str && size)
1214             str[0] = '\0';
1215
1216         *MSVCRT__errno() = MSVCRT_EINVAL;
1217         return MSVCRT_EINVAL;
1218     }
1219
1220     if (value < 0 && radix == 10)
1221     {
1222         is_negative = 1;
1223         val = -value;
1224     }
1225     else
1226     {
1227         is_negative = 0;
1228         val = value;
1229     }
1230
1231     pos = buffer + 64;
1232     *pos = '\0';
1233
1234     do
1235     {
1236         digit = val % radix;
1237         val /= radix;
1238
1239         if (digit < 10)
1240             *--pos = '0' + digit;
1241         else
1242             *--pos = 'a' + digit - 10;
1243     }
1244     while (val != 0);
1245
1246     if (is_negative)
1247         *--pos = '-';
1248
1249     len = buffer + 65 - pos;
1250     if (len > size)
1251     {
1252         size_t i;
1253         MSVCRT_wchar_t *p = str;
1254
1255         /* Copy the temporary buffer backwards up to the available number of
1256          * characters. Don't copy the negative sign if present. */
1257
1258         if (is_negative)
1259         {
1260             p++;
1261             size--;
1262         }
1263
1264         for (pos = buffer + 63, i = 0; i < size; i++)
1265             *p++ = *pos--;
1266
1267         MSVCRT_INVALID_PMT("str[size] is too small");
1268         str[0] = '\0';
1269         *MSVCRT__errno() = MSVCRT_ERANGE;
1270         return MSVCRT_ERANGE;
1271     }
1272
1273     memcpy(str, pos, len * sizeof(MSVCRT_wchar_t));
1274     return 0;
1275 }
1276
1277 #define I10_OUTPUT_MAX_PREC 21
1278 /* Internal structure used by $I10_OUTPUT */
1279 struct _I10_OUTPUT_DATA {
1280     short pos;
1281     char sign;
1282     BYTE len;
1283     char str[I10_OUTPUT_MAX_PREC+1]; /* add space for '\0' */
1284 };
1285
1286 /*********************************************************************
1287  *              $I10_OUTPUT (MSVCRT.@)
1288  * ld80 - long double (Intel 80 bit FP in 12 bytes) to be printed to data
1289  * prec - precision of part, we're interested in
1290  * flag - 0 for first prec digits, 1 for fractional part
1291  * data - data to be populated
1292  *
1293  * return value
1294  *      0 if given double is NaN or INF
1295  *      1 otherwise
1296  *
1297  * FIXME
1298  *      Native sets last byte of data->str to '0' or '9', I don't know what
1299  *      it means. Current implementation sets it always to '0'.
1300  */
1301 int CDECL MSVCRT_I10_OUTPUT(MSVCRT__LDOUBLE ld80, int prec, int flag, struct _I10_OUTPUT_DATA *data)
1302 {
1303     static const char inf_str[] = "1#INF";
1304     static const char nan_str[] = "1#QNAN";
1305
1306     /* MS' long double type wants 12 bytes for Intel's 80 bit FP format.
1307      * Some UNIX have sizeof(long double) == 16, yet only 80 bit are used.
1308      * Assume long double uses 80 bit FP, never seen 128 bit FP. */
1309     long double ld = 0;
1310     double d;
1311     char format[8];
1312     char buf[I10_OUTPUT_MAX_PREC+9]; /* 9 = strlen("0.e+0000") + '\0' */
1313     char *p;
1314
1315     memcpy(&ld, &ld80, 10);
1316     d = ld;
1317     TRACE("(%lf %d %x %p)\n", d, prec, flag, data);
1318
1319     if(d<0) {
1320         data->sign = '-';
1321         d = -d;
1322     } else
1323         data->sign = ' ';
1324
1325     if(isinf(d)) {
1326         data->pos = 1;
1327         data->len = 5;
1328         memcpy(data->str, inf_str, sizeof(inf_str));
1329
1330         return 0;
1331     }
1332
1333     if(isnan(d)) {
1334         data->pos = 1;
1335         data->len = 6;
1336         memcpy(data->str, nan_str, sizeof(nan_str));
1337
1338         return 0;
1339     }
1340
1341     if(flag&1) {
1342         int exp = 1+floor(log10(d));
1343
1344         prec += exp;
1345         if(exp < 0)
1346             prec--;
1347     }
1348     prec--;
1349
1350     if(prec+1 > I10_OUTPUT_MAX_PREC)
1351         prec = I10_OUTPUT_MAX_PREC-1;
1352     else if(prec < 0) {
1353         d = 0.0;
1354         prec = 0;
1355     }
1356
1357     sprintf(format, "%%.%dle", prec);
1358     sprintf(buf, format, d);
1359
1360     buf[1] = buf[0];
1361     data->pos = atoi(buf+prec+3);
1362     if(buf[1] != '0')
1363         data->pos++;
1364
1365     for(p = buf+prec+1; p>buf+1 && *p=='0'; p--);
1366     data->len = p-buf;
1367
1368     memcpy(data->str, buf+1, data->len);
1369     data->str[data->len] = '\0';
1370
1371     if(buf[1]!='0' && prec-data->len+1>0)
1372         memcpy(data->str+data->len+1, buf+data->len+1, prec-data->len+1);
1373
1374     return 1;
1375 }
1376 #undef I10_OUTPUT_MAX_PREC