reactos/lib/sdk/crt/string/mbstowcs_nt.c

   1 #define WIN32_NO_STATUS
   2 #include <windows.h>
   3 #include <ndk/umtypes.h>
   4 #include <ndk/rtlfuncs.h>
   5 #include <string.h>
   6
   7 /*
   8  * @implemented
   9  */
  10 int mbtowc (wchar_t *wchar, const char *mbchar, size_t count)
  11 {
  12         NTSTATUS Status;
  13         ULONG Size;
  14
  15         if (wchar == NULL)
  16                 return 0;
  17
  18         Status = RtlMultiByteToUnicodeN (wchar,
  19                                          sizeof(WCHAR),
  20                                          &Size,
  21                                          mbchar,
  22                                          count);
  23         if (!NT_SUCCESS(Status))
  24                 return -1;
  25
  26         return (int)Size;
  27 }
  28
  29 /*
  30  * @implemented
  31  */
  32 size_t mbstowcs (wchar_t *wcstr, const char *mbstr, size_t count)
  33 {
  34         NTSTATUS Status;
  35         ULONG Size;
  36         ULONG Length;
  37
  38         Length = strlen (mbstr);
  39
  40         if (wcstr == NULL)
  41         {
  42                 RtlMultiByteToUnicodeSize (&Size,
  43                                            mbstr,
  44                                            Length);
  45
  46                 return (size_t)Size;
  47         }
  48
  49         Status = RtlMultiByteToUnicodeN (wcstr,
  50                                          count,
  51                                          &Size,
  52                                          mbstr,
  53                                          Length);
  54         if (!NT_SUCCESS(Status))
  55                 return -1;
  56
  57         return (size_t)Size;
  58 }
  59
  60 /* EOF */