1/*
2 * Copyright (C) 1999-2001, 2007 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, write to the Free Software Foundation, Inc., 51 Franklin Street,
18 * Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21/*
22 * EUC-KR
23 */
24
25/* Specification: RFC 1557 */
26
27static int
28euc_kr_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
29{
30  unsigned char c = *s;
31  /* Code set 0 (ASCII or KS C 5636-1993) */
32  if (c < 0x80)
33    return ascii_mbtowc(conv,pwc,s,n);
34  /* Code set 1 (KS C 5601-1992, now KS X 1001:2002) */
35  if (c >= 0xa1 && c < 0xff) {
36    if (n < 2)
37      return RET_TOOFEW(0);
38    {
39      unsigned char c2 = s[1];
40      if (c2 >= 0xa1 && c2 < 0xff) {
41        unsigned char buf[2];
42        buf[0] = c-0x80; buf[1] = c2-0x80;
43        return ksc5601_mbtowc(conv,pwc,buf,2);
44      } else
45        return RET_ILSEQ;
46    }
47  }
48  return RET_ILSEQ;
49}
50
51static int
52euc_kr_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
53{
54  unsigned char buf[2];
55  int ret;
56
57  /* Code set 0 (ASCII or KS C 5636-1993) */
58  ret = ascii_wctomb(conv,r,wc,n);
59  if (ret != RET_ILUNI)
60    return ret;
61
62  /* Code set 1 (KS C 5601-1992, now KS X 1001:2002) */
63  ret = ksc5601_wctomb(conv,buf,wc,2);
64  if (ret != RET_ILUNI) {
65    if (ret != 2) abort();
66    if (n < 2)
67      return RET_TOOSMALL;
68    r[0] = buf[0]+0x80;
69    r[1] = buf[1]+0x80;
70    return 2;
71  }
72
73  return RET_ILUNI;
74}
75