/*
* Like __fputwc_unlock, but handles fake string (__SSTR) files properly.
* File must already be locked.
*/
static wint_t
__xfputwc(wchar_t wc, FILE *fp, locale_t locale)
{
mbstate_t mbs;
char buf[MB_LEN_MAX];
struct __suio uio;
struct __siov iov;
size_t len;
if ((fp->_flags & __SSTR) == 0)
return (__fputwc_unlock(wc, fp, locale));
memset(&mbs, 0, sizeof(mbs));
len = wcrtomb(buf, wc, &mbs);
if (len == (size_t)-1) {
fp->_flags |= __SERR;
errno = EILSEQ;
return (WEOF);
}
uio.uio_iov = &iov;
uio.uio_resid = len;
uio.uio_iovcnt = 1;
iov.iov_base = buf;
iov.iov_len = len;
return (__sfvwrite(fp, &uio) != EOF ? (wint_t)wc : WEOF);
}
wint_t
fputwc(wchar_t wc, FILE *fp)
{
wint_t r;
FLOCKFILE(fp);
r = __fputwc_unlock(wc, fp);
FUNLOCKFILE(fp);
return (r);
}
wint_t
fputwc(wchar_t wc, FILE *fp)
{
wint_t r;
_DIAGASSERT(fp != NULL);
FLOCKFILE(fp);
r = __fputwc_unlock(wc, fp);
FUNLOCKFILE(fp);
return (r);
}
wint_t
fputwc(wchar_t wc, FILE *fp)
{
wint_t r;
_DIAGASSERT(fp != NULL);
if(fp == NULL) {
errno = EINVAL;
return (WEOF);
}
FLOCKFILE(fp);
r = __fputwc_unlock(wc, fp);
FUNLOCKFILE(fp);
return (r);
}
