[dovecot-cvs] dovecot/src/lib-charset .cvsignore,NONE,1.1 Makefile.am,NONE,1.1 charset-ascii.c,NONE,1.1 charset-iconv.c,NONE,1.1 charset-utf8.h,NONE,1.1

[cras at procontrol.fi]

Update of /home/cvs/dovecot/src/lib-charset
In directory danu:/tmp/cvs-serv3305/src/lib-charset

Added Files:
	.cvsignore Makefile.am charset-ascii.c charset-iconv.c 
	charset-utf8.h 
Log Message:
SEARCH CHARSET support. Currently we do it through iconv() and only ASCII   
characters are compared case-insensitively.



--- NEW FILE: .cvsignore ---
*.la
*.lo
*.o
.deps
.libs
Makefile
Makefile.in
so_locations

--- NEW FILE: Makefile.am ---
noinst_LIBRARIES = libcharset.a

INCLUDES = \
	-I$(top_srcdir)/src/lib

libcharset_a_SOURCES = \
	charset-ascii.c \
	charset-iconv.c

noinst_HEADERS = \
	charset-utf8.h

--- NEW FILE: charset-ascii.c ---
/* Copyright (C) 2002 Timo Sirainen */

#include "lib.h"

#ifndef HAVE_ICONV_H

const char *charset_to_ucase_utf8(const unsigned char *data, size_t *size,
				  const char *charset, int *unknown_charset)
{
	if (charset == NULL || strcasecmp(charset, "us-ascii") == 0)
		return str_ucase(t_strdup_noconst(data));

	if (unknown_charset != NULL)
		*unknown_charset = TRUE;
	return NULL;
}

#endif

--- NEW FILE: charset-iconv.c ---
/* Copyright (C) 2002 Timo Sirainen */

#include "lib.h"

#ifdef HAVE_ICONV_H

#include <iconv.h>

const char *charset_to_ucase_utf8(const unsigned char *data, size_t *size,
				  const char *charset, int *unknown_charset)
{
	iconv_t cd;
	char *inbuf, *outbuf, *outpos;
	size_t inleft, outleft, outsize, pos;

	if (charset == NULL || strcasecmp(charset, "us-ascii") == 0)
		return str_ucase(t_strdup_noconst(data));

	cd = iconv_open("UTF8", charset);
	if (cd == (iconv_t)-1) {
		if (unknown_charset != NULL)
			*unknown_charset = TRUE;
		return NULL;
	}

	if (unknown_charset != NULL)
		*unknown_charset = FALSE;

	inbuf = (char *) data;
	inleft = *size;

	outsize = outleft = *size * 2;
	outbuf = outpos = t_buffer_get(outsize + 1);

	while (iconv(cd, &inbuf, &inleft, &outpos, &outleft) == (size_t)-1) {
		if (errno != E2BIG) {
			/* invalid data */
			iconv_close(cd);
			return NULL;
		}

		/* output buffer too small, grow it */
		pos = outsize - outleft;
		outsize *= 2;
		outleft = outsize - pos;

		outbuf = t_buffer_reget(outbuf, outsize + 1);
		outpos = outbuf + pos;
	}

	*size = (size_t) (outpos - outbuf);
	*outpos++ = '\0';
	t_buffer_alloc(*size + 1);

	/* FIXME: this works only for ASCII */
	str_ucase(outbuf);

	iconv_close(cd);
	return outbuf;
}

#endif

--- NEW FILE: charset-utf8.h ---
#ifndef __CHARSET_UTF8_H
#define __CHARSET_UTF8_H

const char *charset_to_ucase_utf8(const unsigned char *data, size_t *size,
				  const char *charset, int *unknown_charset);

#endif