| /* |
| * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #ifdef HAVE_ICONV |
| |
| /* |
| * Convert data from one encoding to another. Return: |
| * |
| * -2 : memory allocation failed |
| * -1 : unknown encoding |
| * 0 : data was converted exactly |
| * 1 : data was converted inexactly |
| * 2 : data was invalid (but still converted) |
| * |
| * We convert in two steps, via UTF-8, as this is the only |
| * reliable way of distinguishing between invalid input |
| * and valid input which iconv refuses to transliterate. |
| * We convert from UTF-8 twice, because we have no way of |
| * knowing whether the conversion was exact if iconv returns |
| * E2BIG (due to a bug in the specification of iconv). |
| * An alternative approach is to assume that the output of |
| * iconv is never more than 4 times as long as the input, |
| * but I prefer to avoid that assumption if possible. |
| */ |
| |
| int iconvert(const char *fromcode, const char *tocode, |
| const char *from, size_t fromlen, |
| char **to, size_t *tolen) ; |
| |
| #endif /* HAVE_ICONV */ |
