wcstombs_nt.c

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#include <ndk/umtypes.h>
#include <ndk/rtlfuncs.h>
 
/*
 * @implemented
 */
int wctomb (char *mbchar, wchar_t wchar)
{
    NTSTATUS Status;
    ULONG Size;
 
    if (mbchar == NULL)
        return 0;
 
    Status = RtlUnicodeToMultiByteN (mbchar,
                                     1,
                                     &Size,
                                     &wchar,
                                     sizeof(WCHAR));
    if (!NT_SUCCESS(Status))
        return -1;
 
    return (int)Size;
}
 
/*
 * @implemented
 */
size_t wcstombs (char *mbstr, const wchar_t *wcstr, size_t count)
{
    NTSTATUS Status;
    ULONG Size;
    ULONG Length;
 
    Length = (ULONG)wcslen (wcstr);
 
    if (mbstr == NULL)
    {
        RtlUnicodeToMultiByteSize (&Size,
                                   (wchar_t*)((size_t)wcstr),
                                   Length * sizeof(WCHAR));
 
        return (size_t)(Size / sizeof(char));
    }
 
    Status = RtlUnicodeToMultiByteN (mbstr,
                                     (ULONG)count,
                                     &Size,
                                     (wchar_t*)((size_t)wcstr),
                                     Length * sizeof(WCHAR));
    if (!NT_SUCCESS(Status))
        return -1;
 
    return (size_t)(Size / sizeof(char));
}
 
/* EOF */