dlls/msvcr100/msvcr100.c

   1 /*
   2  * msvcr100 specific functions
   3  *
   4  * Copyright 2010 Detlef Riekenberg
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #include "stdio.h"
  24 #include "stdlib.h"
  25 #include "errno.h"
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wine/debug.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  31
  32 #define INVALID_PMT(x,err)   (*_errno() = (err), _invalid_parameter(NULL, NULL, NULL, 0, 0))
  33 #define CHECK_PMT_ERR(x,err) ((x) || (INVALID_PMT( 0, (err) ), FALSE))
  34 #define CHECK_PMT(x)         CHECK_PMT_ERR((x), EINVAL)
  35
  36  /*********************************************************************
  37  *              wmemcpy_s (MSVCR100.@)
  38  */
  39 int CDECL wmemcpy_s(wchar_t *dest, size_t numberOfElements, const wchar_t *src, size_t count)
  40 {
  41     TRACE("(%p %lu %p %lu)\n", dest, (unsigned long)numberOfElements, src, (unsigned long)count);
  42
  43     if (!count)
  44         return 0;
  45
  46     if (!CHECK_PMT(dest != NULL)) return EINVAL;
  47
  48     if (!CHECK_PMT(src != NULL)) {
  49         memset(dest, 0, numberOfElements*sizeof(wchar_t));
  50         return EINVAL;
  51     }
  52     if (!CHECK_PMT_ERR(count <= numberOfElements, ERANGE)) {
  53         memset(dest, 0, numberOfElements*sizeof(wchar_t));
  54         return ERANGE;
  55     }
  56
  57     memcpy(dest, src, sizeof(wchar_t)*count);
  58     return 0;
  59 }
  60
  61  /*********************************************************************
  62  *              wmemmove_s (MSVCR100.@)
  63  */
  64 int CDECL wmemmove_s(wchar_t *dest, size_t numberOfElements, const wchar_t *src, size_t count)
  65 {
  66     TRACE("(%p %lu %p %lu)\n", dest, (unsigned long)numberOfElements, src, (unsigned long)count);
  67
  68     if (!count)
  69         return 0;
  70
  71     /* Native does not seem to conform to 6.7.1.2.3 in
  72      * http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1225.pdf
  73      * in that it does not zero the output buffer on constraint violation.
  74      */
  75     if (!CHECK_PMT(dest != NULL)) return EINVAL;
  76     if (!CHECK_PMT(src != NULL)) return EINVAL;
  77     if (!CHECK_PMT_ERR(count <= numberOfElements, ERANGE)) return ERANGE;
  78
  79     memmove(dest, src, sizeof(wchar_t)*count);
  80     return 0;
  81 }
  82
  83 /*********************************************************************
  84  *  DllMain (MSVCR100.@)
  85  */
  86 BOOL WINAPI DllMain(HINSTANCE hdll, DWORD reason, LPVOID reserved)
  87 {
  88     switch (reason)
  89     {
  90     case DLL_WINE_PREATTACH:
  91         return FALSE;  /* prefer native version */
  92
  93     case DLL_PROCESS_ATTACH:
  94         DisableThreadLibraryCalls(hdll);
  95         _set_printf_count_output(0);
  96     }
  97     return TRUE;
  98 }