diff options
Diffstat (limited to 'newlib/libc/stdlib/wcsrtombs.c')
| -rw-r--r-- | newlib/libc/stdlib/wcsrtombs.c | 74 |
1 files changed, 65 insertions, 9 deletions
diff --git a/newlib/libc/stdlib/wcsrtombs.c b/newlib/libc/stdlib/wcsrtombs.c index 22512c0b4..431347866 100644 --- a/newlib/libc/stdlib/wcsrtombs.c +++ b/newlib/libc/stdlib/wcsrtombs.c @@ -5,18 +5,74 @@ #include <errno.h> size_t -wcsrtombs (char *dst, const wchar_t **src, size_t len, mbstate_t *ps) +_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) { - int retval = 0; - _REENT_CHECK_MISC(_REENT); + char *ptr = dst; + char buff[10]; + int i, n; + int count; + wint_t wch; - retval = _wcstombs_r (_REENT, dst, *src, len, ps); +#ifdef MB_CAPABLE + if (ps == NULL) + { + _REENT_CHECK_MISC(r); + ps = &(_REENT_WCSRTOMBS_STATE(r)); + } +#endif - if (retval == -1) + n = (int)len; + + while (n > 0) { - _REENT->_errno = EILSEQ; - return (size_t)(-1); + wchar_t *pwcs = (wchar_t *)(*src); + int count = ps->__count; + wint_t wch = ps->__value.__wch; + int bytes = _wctomb_r (r, buff, *pwcs, ps); + if (bytes == -1) + { + r->_errno = EILSEQ; + ps->__count = 0; + return (size_t)-1; + } + if (bytes <= n) + { + for (i = 0; i < bytes; ++i) + *ptr++ = buff[i]; + + if (*pwcs == 0x00) + { + *src = NULL; + ps->__count = 0; + return (size_t)(ptr - dst - 1); + } + ++(*src); + } + else + { + /* not enough room, we must back up state to before _wctomb_r call */ + ps->__count = count; + ps->__value.__wch = wch; + } + n -= bytes; } - else - return (size_t)retval; + + return (size_t)(ptr - dst); +} + +#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 */ |