Subversion Repositories openrisc_me

#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 */