iconv.c File Reference

Handle character conversions to/from server. More...

#include <config.h>
#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include <freetds/tds.h>
#include <freetds/iconv.h>
#include <freetds/bool.h>
#include <freetds/bytes.h>
#include <freetds/encodings.h>
#include <freetds/charset_lookup.h>

Include dependency graph for iconv.c:

Macros
#define	CHARSIZE(charset)
#define	CHUNK_ALLOC   4
#define	TDS_ICONV_ENCODING_TABLES

Enumerations
enum	{ POS_ISO1 , POS_UTF8 , POS_UCS2LE , POS_UCS2BE }

Functions
static void	_iconv_close (iconv_t *cd)
static int	collate2charset (TDSCONNECTION *conn, TDS_UCHAR collate[5])
static size_t	skip_one_input_sequence (iconv_t cd, const TDS_ENCODING *charset, const char **input, size_t *input_size)
	Move the input sequence pointer to the next valid position.
void	tds7_srv_charset_changed (TDSCONNECTION *conn, TDS_UCHAR collation[5])
int	tds_canonical_charset (const char *charset_name)
	Determine canonical iconv character set.
const char *	tds_canonical_charset_name (const char *charset_name)
	Determine canonical iconv character set name.
size_t	tds_iconv (TDSSOCKET *tds, TDSICONV *conv, TDS_ICONV_DIRECTION io, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
	Wrapper around iconv(3).
int	tds_iconv_alloc (TDSCONNECTION *conn)
	Allocate iconv stuff.
void	tds_iconv_close (TDSCONNECTION *conn)
static void	tds_iconv_err (TDSSOCKET *tds, int err)
void	tds_iconv_free (TDSCONNECTION *conn)
TDSICONV *	tds_iconv_from_collate (TDSCONNECTION *conn, TDS_UCHAR collate[5])
	Get iconv information from a LCID (to support different column encoding under MSSQL2K)
TDSICONV *	tds_iconv_get (TDSCONNECTION *conn, const char *client_charset, const char *server_charset)
TDSICONV *	tds_iconv_get_info (TDSCONNECTION *conn, int canonic_client, int canonic_server)
	Get a iconv info structure, allocate and initialize if needed.
static void	tds_iconv_info_close (TDSICONV *char_conv)
static int	tds_iconv_info_init (TDSICONV *char_conv, int client_canonical, int server_canonical)
	Open iconv descriptors to convert between character sets (both directions).
static bool	tds_iconv_init (void)
	Initialize charset searching for UTF-8, UCS-2 and ISO8859-1.
TDSRET	tds_iconv_open (TDSCONNECTION *conn, const char *charset, int use_utf16)
static void	tds_iconv_reset (TDSICONV *conv)
static const char *	tds_set_iconv_name (int charset)
	Get iconv name given canonic.
void	tds_srv_charset_changed (TDSCONNECTION *conn, const char *charset)
static void	tds_srv_charset_changed_num (TDSCONNECTION *conn, int canonic_charset_num)

Variables
static bool	iconv_initialized = false
static const char *	iconv_names [TDS_VECTOR_SIZE(canonic_charsets)]
struct {
char   data [12]
uint32_t   len
}	test_strings [4]
static const char *	ucs2name

Detailed Description

Handle character conversions to/from server.

Macro Definition Documentation

CHARSIZE

#define CHARSIZE

(

charset

)

Value:

                ( ((charset)->min_bytes_per_char == (charset)->max_bytes_per_char )? \
                (charset)->min_bytes_per_char : 0 )

Function Documentation

tds_iconv_alloc()

int tds_iconv_alloc

(

TDSCONNECTION *

conn

)

Allocate iconv stuff.

Returns

0 for success

Variable Documentation

[struct]

const struct { ... } test_strings[4]

Initial value:

= {
    
    { 4, "Ao\xD3\xE5" },
    { 6, "Ao\xC3\x93\xC3\xA5" },
    { 8, "A\x00o\x000\xD3\x00\xE5\x00" },
    { 8, "\x00" "A\x00o\x000\xD3\x00\xE5" },
}