reactos/lib/string/wcstombs.c

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