1132718Skan/*
290075Sobrien * Copyright (C) 1999-2000 Free Software Foundation, Inc.
3169689Skan * This file is part of the GNU LIBICONV Library.
490075Sobrien *
5169689Skan * The GNU LIBICONV Library is free software; you can redistribute it
690075Sobrien * and/or modify it under the terms of the GNU Library General Public
7132718Skan * License as published by the Free Software Foundation; either version 2
890075Sobrien * of the License, or (at your option) any later version.
990075Sobrien *
1090075Sobrien * The GNU LIBICONV Library is distributed in the hope that it will be
1190075Sobrien * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
1290075Sobrien * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
1390075Sobrien * Library General Public License for more details.
1490075Sobrien *
1590075Sobrien * You should have received a copy of the GNU Library General Public
1690075Sobrien * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
1790075Sobrien * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
1890075Sobrien * Fifth Floor, Boston, MA 02110-1301, USA.
1990075Sobrien */
2090075Sobrien
21169689Skan/*
22169689Skan * UCS-4BE = UCS-4 big endian
2390075Sobrien */
2490075Sobrien
25132718Skanstatic int
26132718Skanucs4be_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
27132718Skan{
2890075Sobrien  if (n >= 4) {
2990075Sobrien    *pwc = (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3];
3090075Sobrien    return 4;
31169689Skan  }
3290075Sobrien  return RET_TOOFEW(0);
3390075Sobrien}
3490075Sobrien
3590075Sobrienstatic int
3690075Sobrienucs4be_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
3790075Sobrien{
38117395Skan  if (n >= 4) {
39132718Skan    r[0] = (unsigned char) (wc >> 24);
4090075Sobrien    r[1] = (unsigned char) (wc >> 16);
4190075Sobrien    r[2] = (unsigned char) (wc >> 8);
4290075Sobrien    r[3] = (unsigned char) wc;
4390075Sobrien    return 4;
4490075Sobrien  } else
4590075Sobrien    return RET_TOOSMALL;
4690075Sobrien}
4790075Sobrien