1 /* 2 * Copyright (C) 1999-2001 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 * UCS-2LE = UCS-2 little endian 23 */ 24 25 static int 26 ucs2le_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) 27 { 28 if (n >= 2) { 29 if (s[1] >= 0xd8 && s[1] < 0xe0) { 30 return RET_ILSEQ; 31 } else { 32 *pwc = s[0] + (s[1] << 8); 33 return 2; 34 } 35 } 36 return RET_TOOFEW(0); 37 } 38 39 static int 40 ucs2le_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) 41 { 42 if (wc < 0x10000 && !(wc >= 0xd800 && wc < 0xe000)) { 43 if (n >= 2) { 44 r[0] = (unsigned char) wc; 45 r[1] = (unsigned char) (wc >> 8); 46 return 2; 47 } else 48 return RET_TOOSMALL; 49 } 50 return RET_ILUNI; 51 } 52