reactos/lib/string/wcstombs.c

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