95 lines
1.9 KiB
C
Executable File
95 lines
1.9 KiB
C
Executable File
#include "mb_wc_common.h"
|
|
#include <wchar.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#include <windows.h>
|
|
|
|
|
|
static int __MINGW_ATTRIB_NONNULL(1)
|
|
__wcrtomb_cp (char *dst, wchar_t wc, const unsigned int cp,
|
|
const unsigned int mb_max)
|
|
{
|
|
if (wc > 255)
|
|
{
|
|
errno = EILSEQ;
|
|
return -1;
|
|
}
|
|
|
|
if (cp == 0)
|
|
{
|
|
*dst = (char) wc;
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
int invalid_char = 0;
|
|
|
|
int size = WideCharToMultiByte(get_cp_from_locale(),
|
|
0 /* Is this correct flag? */,
|
|
&wc, 1, dst, mb_max,
|
|
NULL, &invalid_char);
|
|
if (size == 0 || invalid_char)
|
|
{
|
|
errno = EILSEQ;
|
|
return -1;
|
|
}
|
|
return size;
|
|
}
|
|
}
|
|
|
|
size_t
|
|
wcrtomb (char *dst, wchar_t wc, mbstate_t * __UNUSED_PARAM (ps))
|
|
{
|
|
char byte_bucket [MB_LEN_MAX];
|
|
char* tmp_dst = dst ? dst : byte_bucket;
|
|
return (size_t)__wcrtomb_cp (tmp_dst, wc, get_cp_from_locale (),
|
|
MB_CUR_MAX);
|
|
}
|
|
|
|
size_t wcsrtombs (char *dst, const wchar_t **src, size_t len,
|
|
mbstate_t * __UNUSED_PARAM (ps))
|
|
{
|
|
int ret = 0;
|
|
size_t n = 0;
|
|
const unsigned int cp = get_cp_from_locale();
|
|
const unsigned int mb_max = MB_CUR_MAX;
|
|
|
|
if (src == NULL || *src == NULL) /* undefined behavior */
|
|
return 0;
|
|
|
|
if (dst != NULL)
|
|
{
|
|
const wchar_t ** saved_src = src;
|
|
while (n < len)
|
|
{
|
|
if ((ret = __wcrtomb_cp (dst, **src, cp, mb_max)) <= 0)
|
|
return (size_t) -1;
|
|
n += ret;
|
|
dst += ret;
|
|
if (*(dst - 1) == '\0')
|
|
{
|
|
*saved_src = (wchar_t) NULL;;
|
|
return (n - 1);
|
|
}
|
|
*src++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char byte_bucket [MB_LEN_MAX];
|
|
while (n < len)
|
|
{
|
|
if ((ret = __wcrtomb_cp (byte_bucket, **src, cp, mb_max))
|
|
<= 0)
|
|
return (size_t) -1;
|
|
n += ret;
|
|
if (byte_bucket [ret - 1] == '\0')
|
|
return (n - 1);
|
|
*src++;
|
|
}
|
|
}
|
|
return n;
|
|
}
|