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author | Bruno Haible <bruno@clisp.org> | 2007-01-27 00:47:44 +0000 |
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committer | Bruno Haible <bruno@clisp.org> | 2007-01-27 00:47:44 +0000 |
commit | 2b5d5f86a9426eda473497f3afc96af0cfbd52be (patch) | |
tree | fb3b1f5097ddd4622774eac2beea7dda584e08cd /lib/uniconv/u8-strconv-to-enc.c | |
parent | e614ca0fb88f7c5c59e1ec22817dca9e9bbc71af (diff) | |
download | gnulib-2b5d5f86a9426eda473497f3afc96af0cfbd52be.tar.gz |
New module 'uniconv/u8-strconv-to-enc'.
Diffstat (limited to 'lib/uniconv/u8-strconv-to-enc.c')
-rw-r--r-- | lib/uniconv/u8-strconv-to-enc.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/lib/uniconv/u8-strconv-to-enc.c b/lib/uniconv/u8-strconv-to-enc.c new file mode 100644 index 0000000000..7dee051a77 --- /dev/null +++ b/lib/uniconv/u8-strconv-to-enc.c @@ -0,0 +1,81 @@ +/* Conversion from UTF-8 to legacy encodings. + Copyright (C) 2002, 2006-2007 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2, 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library 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. */ + +/* Written by Bruno Haible <bruno@clisp.org>. */ + +#include <config.h> + +/* Specification. */ +#include "uniconv.h" + +#include <errno.h> +#include <stdlib.h> +#include <string.h> + +#include "c-strcaseeq.h" +#include "striconveha.h" +#include "unistr.h" + +char * +u8_strconv_to_encoding (const uint8_t *string, + const char *tocode, + enum iconv_ilseq_handler handler) +{ + char *result; + size_t length; + + if (STRCASEEQ (tocode, "UTF-8", 'U','T','F','-','8',0,0,0,0)) + { + /* Conversion from UTF-8 to UTF-8. No need to go through iconv(). */ + length = u8_strlen (string) + 1; +#if CONFIG_UNICODE_SAFETY + if (u8_check (string, length)) + { + errno = EILSEQ; + return NULL; + } +#endif + result = (char *) malloc (length); + if (result == NULL) + { + errno = ENOMEM; + return NULL; + } + memcpy (result, (const char *) string, length); + return result; + } + else + { + result = NULL; + length = 0; + if (mem_iconveha (string, u8_strlen (string) + 1, + "UTF-8", tocode, + handler == iconveh_question_mark, handler, + NULL, &result, &length) < 0) + return NULL; + /* Verify the result has exactly one NUL byte, at the end. */ + if (!(length > 0 && result[length-1] == '\0' + && strlen (result) == length-1)) + { + free (result); + errno = EILSEQ; + return NULL; + } + return result; + } +} |