2
* Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
4
* This program is free software; you can redistribute it and/or modify
5
* it under the terms of the GNU General Public License as published by
6
* the Free Software Foundation; either version 2 of the License, or
7
* (at your option) any later version.
9
* This program is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
* GNU General Public License for more details.
14
* You should have received a copy of the GNU General Public License
15
* along with this program; if not, write to the Free Software
16
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26
* Convert data from one encoding to another. Return:
28
* -2 : memory allocation failed
29
* -1 : unknown encoding
30
* 0 : data was converted exactly
31
* 1 : data was converted inexactly
32
* 2 : data was invalid (but still converted)
34
* We convert in two steps, via UTF-8, as this is the only
35
* reliable way of distinguishing between invalid input
36
* and valid input which iconv refuses to transliterate.
37
* We convert from UTF-8 twice, because we have no way of
38
* knowing whether the conversion was exact if iconv returns
39
* E2BIG (due to a bug in the specification of iconv).
40
* An alternative approach is to assume that the output of
41
* iconv is never more than 4 times as long as the input,
42
* but I prefer to avoid that assumption if possible.
45
int iconvert(const char *fromcode, const char *tocode,
46
const char *from, size_t fromlen,
47
char **to, size_t *tolen) ;
49
#endif /* HAVE_ICONV */