1: /*
2: * Copyright (C) 1999-2001, 2016 Free Software Foundation, Inc.
3: * This file is part of the GNU LIBICONV Library.
4: *
5: * The GNU LIBICONV Library is free software; you can redistribute it
6: * and/or modify it under the terms of the GNU Library General Public
7: * License as published by the Free Software Foundation; either version 2
8: * of the License, or (at your option) any later version.
9: *
10: * The GNU LIBICONV Library is distributed in the hope that it will be
11: * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Library General Public License for more details.
14: *
15: * You should have received a copy of the GNU Library General Public
16: * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
17: * If not, see <https://www.gnu.org/licenses/>.
18: */
19:
20: /*
21: * UCS-2BE = UCS-2 big endian
22: */
23:
24: static int
25: ucs2be_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
26: {
27: if (n >= 2) {
28: if (s[0] >= 0xd8 && s[0] < 0xe0) {
29: return RET_ILSEQ;
30: } else {
31: *pwc = (s[0] << 8) + s[1];
32: return 2;
33: }
34: }
35: return RET_TOOFEW(0);
36: }
37:
38: static int
39: ucs2be_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
40: {
41: if (wc < 0x10000 && !(wc >= 0xd800 && wc < 0xe000)) {
42: if (n >= 2) {
43: r[0] = (unsigned char) (wc >> 8);
44: r[1] = (unsigned char) wc;
45: return 2;
46: } else
47: return RET_TOOSMALL;
48: }
49: return RET_ILUNI;
50: }
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