Fix missing backslash in last change.
[glibc.git] / iconv / iconv_open.c
bloba9fe30cd980a8b4be997cea4743800387dfa8f27
1 /* Get descriptor for character set conversion.
2 Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <errno.h>
22 #include <iconv.h>
23 #include <stdlib.h>
24 #include <string.h>
26 #include <gconv_int.h>
27 #include "gconv_charset.h"
30 iconv_t
31 iconv_open (const char *tocode, const char *fromcode)
33 char *tocode_conv;
34 char *fromcode_conv;
35 size_t tocode_len;
36 size_t fromcode_len;
37 __gconv_t cd;
38 int res;
40 /* Normalize the name. We remove all characters beside alpha-numeric,
41 '_', '-', '/', and '.'. */
42 tocode_len = strlen (tocode);
43 tocode_conv = alloca (tocode_len + 3);
44 strip (tocode_conv, tocode);
45 tocode = tocode_conv[2] == '\0' ? upstr (tocode_conv, tocode) : tocode_conv;
47 fromcode_len = strlen (fromcode);
48 fromcode_conv = alloca (fromcode_len + 3);
49 strip (fromcode_conv, fromcode);
50 fromcode = (fromcode_conv[2] == '\0'
51 ? upstr (fromcode_conv, fromcode) : fromcode_conv);
53 res = __gconv_open (tocode, fromcode, &cd, 0);
55 if (__builtin_expect (res, __GCONV_OK) != __GCONV_OK)
57 /* We must set the error number according to the specs. */
58 if (res == __GCONV_NOCONV || res == __GCONV_NODB)
59 __set_errno (EINVAL);
61 return (iconv_t) -1;
64 return (iconv_t) cd;