88 lines
1.5 KiB
C
88 lines
1.5 KiB
C
#include <reent.h>
|
|
#include <newlib.h>
|
|
#include <wchar.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
|
|
size_t
|
|
_DEFUN (_wcsrtombs_r, (r, dst, src, len, ps),
|
|
struct _reent *r _AND
|
|
char *dst _AND
|
|
const wchar_t **src _AND
|
|
size_t len _AND
|
|
mbstate_t *ps)
|
|
{
|
|
char *ptr = dst;
|
|
char buff[10];
|
|
wchar_t *pwcs;
|
|
size_t n;
|
|
int i;
|
|
|
|
#ifdef _MB_CAPABLE
|
|
if (ps == NULL)
|
|
{
|
|
_REENT_CHECK_MISC(r);
|
|
ps = &(_REENT_WCSRTOMBS_STATE(r));
|
|
}
|
|
#endif
|
|
|
|
/* If no dst pointer, treat len as maximum possible value. */
|
|
if (dst == NULL)
|
|
len = (size_t)-1;
|
|
|
|
n = 0;
|
|
pwcs = (wchar_t *)(*src);
|
|
|
|
while (n < len)
|
|
{
|
|
int count = ps->__count;
|
|
wint_t wch = ps->__value.__wch;
|
|
int bytes = _wcrtomb_r (r, buff, *pwcs, ps);
|
|
if (bytes == -1)
|
|
{
|
|
r->_errno = EILSEQ;
|
|
ps->__count = 0;
|
|
return (size_t)-1;
|
|
}
|
|
if (n + bytes <= len)
|
|
{
|
|
n += bytes;
|
|
if (dst)
|
|
{
|
|
for (i = 0; i < bytes; ++i)
|
|
*ptr++ = buff[i];
|
|
++(*src);
|
|
}
|
|
if (*pwcs++ == 0x00)
|
|
{
|
|
if (dst)
|
|
*src = NULL;
|
|
ps->__count = 0;
|
|
return n - 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* not enough room, we must back up state to before _wctomb_r call */
|
|
ps->__count = count;
|
|
ps->__value.__wch = wch;
|
|
len = 0;
|
|
}
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
#ifndef _REENT_ONLY
|
|
size_t
|
|
_DEFUN (wcsrtombs, (dst, src, len, ps),
|
|
char *dst _AND
|
|
const wchar_t **src _AND
|
|
size_t len _AND
|
|
mbstate_t *ps)
|
|
{
|
|
return _wcsrtombs_r (_REENT, dst, src, len, ps);
|
|
}
|
|
#endif /* !_REENT_ONLY */
|