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
27 static int
euc_kr_mbtowc(conv_t conv,ucs4_t * pwc,const unsigned char * s,int n)28 euc_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
51 static int
euc_kr_wctomb(conv_t conv,unsigned char * r,ucs4_t wc,int n)52 euc_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