Main include file for libtds. More...

#include <stdarg.h>
#include <stdio.h>
#include <time.h>
#include <freetds/version.h>
#include <freetds/sysdep_private.h>
#include <freetds/sysdep_types.h>
#include <freetds/thread.h>
#include <freetds/bool.h>
#include <freetds/macros.h>
#include <freetds/utils/string.h>
#include <freetds/replacements.h>
#include <freetds/pushvis.h>
#include <freetds/proto.h>
#include <freetds/popvis.h>

Include dependency graph for tds.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	tds5_colinfo

union	tds_align_struct

struct	tds_authentication

struct	tds_bcpcoldata

struct	tds_bcpinfo

struct	tds_blob
	Information about blobs (e.g. More...

struct	tds_capabilities

struct	tds_capability_type

struct	tds_column
	Metadata about columns in regular and compute rows. More...

struct	tds_column_funcs

struct	tds_compiletime_settings
	A structure to hold all the compile-time settings. More...

struct	tds_connection

struct	tds_context

struct	tds_cursor
	Holds informations about a cursor. More...

struct	tds_cursor_status

struct	TDS_DATETIMEALL
	this structure is not directed connected to a TDS protocol but keeps any DATE/TIME information. More...

struct	tds_dynamic
	Holds information for a dynamic (also called prepared) query. More...

struct	tds_encoding
	Information relevant to libiconv. More...

struct	tds_env
	Current environment as reported by the server. More...

struct	tds_freeze

struct	tds_headers

struct	tds_locale

struct	tds_login

struct	tds_message

struct	tds_multiple

union	tds_option_arg

struct	tds_packet

struct	tds_poll_wakeup

struct	tds_result_info
	Hold information for any results. More...

struct	tds_socket
	Information for a server connection. More...

struct	tds_tvp

struct	tds_tvp_row

struct	tds_upd_col

struct	tds_variant
	Store variant informations. More...

struct	tdsdaterec
	Used by tds_datecrack. More...

struct	tdsdump_off_item

Macros
#define	is_ascii_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_ASCII) != 0)

#define	is_binary_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_BINARY) != 0)

#define	is_blob_col(x) ((x)->column_varint_size > 2)

#define	is_blob_type(x) ((x)==SYBTEXT \|\| (x)==SYBIMAGE \|\| (x)==SYBNTEXT)

#define	is_char_type(x) ((tds_type_flags_ms[x] & (TDS_TYPEFLAG_ASCII\|TDS_TYPEFLAG_UNICODE)) != 0)

#define	is_collate_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_COLLATE) != 0)

#define	is_datetime_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_DATETIME) != 0)
	return true if type is a datetime (but not date or time)

#define	is_end_token(x) ((x) >= TDS_DONE_TOKEN && (x) <= TDS_DONEINPROC_TOKEN)

#define	is_fixed_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_FIXED) != 0)

#define	is_nullable_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_NULLABLE) != 0)

#define	is_numeric_type(x) ((x)==SYBNUMERIC \|\| (x)==SYBDECIMAL)

#define	is_similar_type(x, y) (is_char_type(x) && is_char_type(y))

#define	IS_TDS42(x) (x->tds_version==0x402)

#define	IS_TDS46(x) (x->tds_version==0x406)

#define	IS_TDS50(x) (x->tds_version==0x500)

#define	IS_TDS50_PLUS(x) ((x)->tds_version>=0x500)

#define	IS_TDS70(x) (x->tds_version==0x700)

#define	IS_TDS71(x) (x->tds_version==0x701)

#define	IS_TDS71_PLUS(x) ((x)->tds_version>=0x701)

#define	IS_TDS72(x) (x->tds_version==0x702)

#define	IS_TDS72_PLUS(x) ((x)->tds_version>=0x702)

#define	IS_TDS73(x) (x->tds_version==0x703)

#define	IS_TDS73_PLUS(x) ((x)->tds_version>=0x703)

#define	IS_TDS74_PLUS(x) ((x)->tds_version>=0x704)

#define	IS_TDS7_PLUS(x) ((x)->tds_version>=0x700)

#define	IS_TDSDEAD(x) (((x) == NULL) \|\| (x)->state == TDS_DEAD)

#define	is_unicode_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_UNICODE) != 0)

#define	is_variable_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_VARIABLE) != 0)

#define	is_variant_inner_type(x) ((tds_type_flags_ms[x] & TDS_TYPEFLAG_VARIANT) != 0)

#define	MAXPRECISION 77

#define	TDS_ALIGN_SIZE sizeof(tds_align_struct)

#define	TDS_BYTE_SWAP16(value)

#define	TDS_BYTE_SWAP32(value)

#define	TDS_CANCELLED ((TDSRET)-2)

#define	tds_capability_has_req(conn, cap) tds_capability_enabled(&conn->capabilities.types[0], cap)

#define	tds_capability_has_res(conn, cap) tds_capability_enabled(&conn->capabilities.types[1], cap)

#define	TDS_CMD_DONE 4046

#define	TDS_CMD_FAIL 4048

#define	TDS_CMD_SUCCEED 4047

#define	TDS_COMPUTE_RESULT 4045

#define	TDS_COMPUTEFMT_RESULT 4050

#define	tds_convert_string_free(original, converted) do { if (original != converted) free((char*) converted); } while(0)

#define	TDS_DBG_ERROR __FILE__, ((__LINE__ << 4) \| 2)

#define	TDS_DBG_FUNC __FILE__, ((__LINE__ << 4) \| 7)

#define	TDS_DBG_HEADER __FILE__, ((__LINE__ << 4) \| 10)

#define	TDS_DBG_INFO1 __FILE__, ((__LINE__ << 4) \| 5)

#define	TDS_DBG_INFO2 __FILE__, ((__LINE__ << 4) \| 6)

#define	TDS_DBG_LOGIN __FILE__, ((__LINE__ << 4) \| 11)

#define	TDS_DBG_NETWORK __FILE__, ((__LINE__ << 4) \| 4)

#define	TDS_DBG_SEVERE __FILE__, ((__LINE__ << 4) \| 1)

#define	TDS_DBG_WARN __FILE__, ((__LINE__ << 4) \| 3)

#define	TDS_DBGFLAG_ALL 0xfff

#define	TDS_DBGFLAG_ERROR 0x04

#define	TDS_DBGFLAG_FUNC 0x80

#define	TDS_DBGFLAG_HEADER 0x0400

#define	TDS_DBGFLAG_INFO1 0x20

#define	TDS_DBGFLAG_INFO2 0x40

#define	TDS_DBGFLAG_LOGIN 0x0800

#define	TDS_DBGFLAG_NETWORK 0x10

#define	TDS_DBGFLAG_PID 0x1000

#define	TDS_DBGFLAG_SEVERE 0x02

#define	TDS_DBGFLAG_SOURCE 0x4000

#define	TDS_DBGFLAG_THREAD 0x8000

#define	TDS_DBGFLAG_TIME 0x2000

#define	TDS_DBGFLAG_WARN 0x08

#define	TDS_DEF_BLKSZ 512

#define	TDS_DEF_CHARSET "iso_1"

#define	TDS_DEF_LANG "us_english"

#define	TDS_DEF_PORT 1433

#define	TDS_DEF_SERVER "SYBASE"

#define	TDS_DEFAULT_VERSION 0x000

#define	TDS_DESCRIBE_RESULT 4051

#define	TDS_DONE_RESULT 4052

#define	TDS_DONEINPROC_RESULT 4054

#define	TDS_DONEPROC_RESULT 4053

#define	TDS_END_LEN while(0); } while(tds_freeze_close(current_freeze), 0); } while(0);

#define	TDS_FAIL ((TDSRET)-1)

#define	TDS_FAILED(rc) ((rc)<0)

#define	tds_get_ctx(tds) ((tds)->conn->tds_ctx)

#define	tds_get_int(tds) ((TDS_INT) tds_get_uint(tds))

#define	tds_get_int8(tds) ((TDS_INT8) tds_get_uint8(tds))

#define	tds_get_parent(tds) ((tds)->parent)

#define	tds_get_s(tds) ((tds)->conn->s)

#define	tds_get_smallint(tds) ((TDS_SMALLINT) tds_get_usmallint(tds))

#define	TDS_GSSAPI_DELEGATION "enable gssapi delegation"

#define	TDS_INT_CANCEL 2

#define	TDS_INT_CONTINUE 1

#define	TDS_INT_TIMEOUT 3

#define	TDS_INVALID_TYPE ((TDS_SERVER_TYPE) 0)

#define	TDS_IS_MSSQL(x) (((x)->conn->product_version & 0x80000000u)!=0)
	Check if product is Microsft SQL Server.

#define	TDS_IS_SYBASE(x) (!((x)->conn->product_version & 0x80000000u))
	Check if product is Sybase (such as Adaptive Server Enterrprice).

#define	TDS_MAJOR(x) ((x)->tds_version >> 8)

#define	TDS_MAX_CAPABILITY 32

#define	TDS_MAX_CONN 4096

#define	TDS_MAX_DYNID_LEN 30

#define	TDS_MAX_LOGIN_STR_SZ 128

#define	TDS_MINOR(x) ((x)->tds_version & 0xff)

#define	TDS_MS_VER(maj, min, x) (0x80000000u\|((maj)<<24)\|((min)<<16)\|(x))
	Calc a version number for mssql.

#define	TDS_MSG_RESULT 4044

#define	tds_new(type, n) ((type ) malloc(sizeof(type) (n)))

#define	tds_new0(type, n) ((type *) calloc(n, sizeof(type)))

#define	TDS_NO_COUNT -1

#define	TDS_NO_MORE_RESULTS ((TDSRET)1)

#define	TDS_NULLTERM -9

#define	TDS_OTHERS_RESULT 4055

#define	tds_packet_get_data_start(pkt) 0

#define	tds_packet_zero_data_start(pkt) do { } while(0)

#define	TDS_PARAM_RESULT 4042

#define	TDS_PROPAGATE(rc) do { TDSRET _tds_ret = (rc); if (TDS_FAILED(_tds_ret)) return _tds_ret; } while(0)

#define	TDS_PUT_BYTE(tds, v) tds_put_byte((tds), ((unsigned char)(v)))

#define	TDS_PUT_INT(tds, v) tds_put_int((tds), ((TDS_INT)(v)))

#define	TDS_PUT_SMALLINT(tds, v) tds_put_smallint((tds), ((TDS_SMALLINT)(v)))

#define	tds_put_tinyint(tds, ti) tds_put_byte(tds,ti)
	Output a tinyint value.

#define	TDS_RESIZE(p, n_elem) tds_realloc((void *) &(p), sizeof((p)) * (size_t) (n_elem))

#define	TDS_ROW_RESULT 4040

#define	TDS_ROWFMT_RESULT 4049

#define	tds_set_ctx(tds, val) do { ((tds)->conn->tds_ctx) = (val); } while(0)

#define	tds_set_parent(tds, val) do { ((tds)->parent) = (val); } while(0)

#define	tds_set_s(tds, val) do { ((tds)->conn->s) = (val); } while(0)

#define	TDS_START_LEN_GENERIC(tds_socket, len)

#define	TDS_START_LEN_TINYINT(tds_socket) TDS_START_LEN_GENERIC(tds_socket, 1)

#define	TDS_START_LEN_UINT(tds_socket) TDS_START_LEN_GENERIC(tds_socket, 4)

#define	TDS_START_LEN_USMALLINT(tds_socket) TDS_START_LEN_GENERIC(tds_socket, 2)

#define	TDS_STATUS_RESULT 4043

#define	TDS_STR_APPENDMODE "dump file append"

#define	TDS_STR_ASA_DATABASE "asa database"

#define	TDS_STR_BLKSZ "initial block size"

#define	TDS_STR_CAFILE "ca file"

#define	TDS_STR_CHARSET "charset"

#define	TDS_STR_CHECKSSLHOSTNAME "check certificate hostname"

#define	TDS_STR_CLCHARSET "client charset"

#define	TDS_STR_CONNTIMEOUT "connect timeout"

#define	TDS_STR_CRLFILE "crl file"

#define	TDS_STR_DATABASE "database"

#define	TDS_STR_DATEFMT "date-only format"

#define	TDS_STR_DATETIMEFMT "date format"

#define	TDS_STR_DBFILENAME "database filename"

#define	TDS_STR_DEBUGFLAGS "debug flags"

#define	TDS_STR_DEBUGLVL "debug level"

#define	TDS_STR_DUMPFILE "dump file"

#define	TDS_STR_EMUL_LE "emulate little endian"

#define	TDS_STR_ENABLE_TLS_V1 "enable tls v1"

#define	TDS_STR_ENCRYPTION "encryption"

#define	TDS_STR_ENCRYPTION_OFF "off"

#define	TDS_STR_ENCRYPTION_REQUEST "request"

#define	TDS_STR_ENCRYPTION_REQUIRE "require"

#define	TDS_STR_HOST "host"

#define	TDS_STR_HOSTNAME "hostname"

#define	TDS_STR_INSTANCE "instance"

#define	TDS_STR_LANGUAGE "language"

#define	TDS_STR_MUTUAL_AUTHENTICATION "mutual authentication"

#define	TDS_STR_PORT "port"

#define	TDS_STR_QUERY_TIMEOUT "query timeout"

#define	TDS_STR_READONLY_INTENT "read-only intent"

#define	TDS_STR_REALM "realm"

#define	TDS_STR_SPN "spn"

#define	TDS_STR_SWAPDT "swap broken dates"

#define	TDS_STR_TEXTSZ "text size"

#define	TDS_STR_TIMEFMT "time-only format"

#define	TDS_STR_TIMEOUT "timeout"

#define	TDS_STR_USE_UTF_16 "use utf-16"

#define	TDS_STR_USELANMAN "use lanman"

#define	TDS_STR_USENTLMV2 "use ntlmv2"

#define	TDS_STR_VERSION "tds version"

#define	TDS_SUCCEED(rc) ((rc)>=0)

#define	TDS_SUCCESS ((TDSRET)0)

#define	TDS_SYB_VER(maj, min, x) (((maj)<<24)\|((min)<<16)\|(x)<<8)
	Calc a version number for Sybase.

#define	TDS_TOKEN_FLAG(flag) TDS_RETURN_##flag = (1 << (TDS_TOKEN_RES_##flag2)), TDS_STOPAT_##flag = (2 << (TDS_TOKEN_RES_##flag2))

#define	TDSDUMP_BUF_FAST if (TDS_UNLIKELY(tds_write_dump)) tdsdump_dump_buf

#define	tdsdump_dump_buf TDSDUMP_BUF_FAST

#define	tdsdump_log TDSDUMP_LOG_FAST

#define	TDSDUMP_LOG_FAST if (TDS_UNLIKELY(tds_write_dump)) tdsdump_log

#define	TDSSELREAD POLLIN

#define	TDSSELWRITE POLLOUT

#define	TLS_STR_OPENSSL_CIPHERS "openssl ciphers"

Typedefs
typedef struct tds_bcpcoldata	BCPCOLDATA

typedef int(*	err_handler_t) (const TDSCONTEXT , TDSSOCKET , TDSMESSAGE *)

typedef struct tds5_colinfo	TDS5COLINFO

typedef TDSRET(*	tds_bcp_get_col_data) (TDSBCPINFO bulk, TDSCOLUMN bcpcol, int offset)

typedef void(*	tds_bcp_null_error) (TDSBCPINFO *bulk, int index, int offset)

typedef struct tds_capabilities	TDS_CAPABILITIES

typedef struct tds_capability_type	TDS_CAPABILITY_TYPE

typedef char	TDS_CHAR

typedef struct tds_compiletime_settings	TDS_COMPILETIME_SETTINGS
	A structure to hold all the compile-time settings.

typedef enum tds_cursor_fetch	TDS_CURSOR_FETCH

typedef enum tds_cursor_operation	TDS_CURSOR_OPERATION

typedef struct tds_cursor_status	TDS_CURSOR_STATUS

typedef struct tds_encoding	TDS_ENCODING
	Information relevant to libiconv.

typedef enum tds_encryption_level	TDS_ENCRYPTION_LEVEL

typedef tds_sysdep_real64_type	TDS_FLOAT

typedef int	tds_func_check(const TDSCOLUMN *col)

typedef TDSRET	tds_func_get_data(TDSSOCKET tds, TDSCOLUMN col)

typedef TDSRET	tds_func_get_info(TDSSOCKET tds, TDSCOLUMN col)

typedef TDSRET	tds_func_put_data(TDSSOCKET tds, TDSCOLUMN col, int bcp7)

typedef TDSRET	tds_func_put_info(TDSSOCKET tds, TDSCOLUMN col)

typedef TDS_INT	tds_func_row_len(TDSCOLUMN *col)

typedef int32_t	TDS_INT

typedef int64_t	TDS_INT8

typedef enum tds_operations	TDS_OPERATION

typedef union tds_option_arg	TDS_OPTION_ARG

typedef tds_sysdep_real32_type	TDS_REAL

typedef int16_t	TDS_SMALLINT

typedef enum tds_states	TDS_STATE
	values for tds->state

typedef uint8_t	TDS_TINYINT

typedef struct tds_tvp	TDS_TVP

typedef struct tds_tvp_row	TDS_TVP_ROW

typedef uint8_t	TDS_UCHAR

typedef uint32_t	TDS_UINT

typedef uint64_t	TDS_UINT8

typedef uint16_t	TDS_USMALLINT

typedef struct tds_authentication	TDSAUTHENTICATION

typedef struct tds_bcpinfo	TDSBCPINFO

typedef struct tds_blob	TDSBLOB
	Information about blobs (e.g.

typedef struct tds_column	TDSCOLUMN

typedef struct tds_column_funcs	TDSCOLUMNFUNCS

typedef struct tds_result_info	TDSCOMPUTEINFO

typedef void(*	TDSCONFPARSE) (const char option, const char value, void *param)

typedef struct tds_connection	TDSCONNECTION

typedef struct tds_context	TDSCONTEXT

typedef struct tds_cursor	TDSCURSOR
	Holds informations about a cursor.

typedef struct tdsdaterec	TDSDATEREC
	Used by tds_datecrack.

typedef struct tdsdump_off_item	TDSDUMP_OFF_ITEM

typedef struct tds_dynamic	TDSDYNAMIC
	Holds information for a dynamic (also called prepared) query.

typedef struct tds_env	TDSENV
	Current environment as reported by the server.

typedef struct tds_freeze	TDSFREEZE

typedef struct tds_headers	TDSHEADERS

typedef struct tdsiconvinfo	TDSICONV

typedef struct tds_locale	TDSLOCALE

typedef struct tds_login	TDSLOGIN

typedef struct tds_message	TDSMESSAGE

typedef struct tds_multiple	TDSMULTIPLE

typedef struct tds_packet	TDSPACKET

typedef TDSRESULTINFO	TDSPARAMINFO

typedef struct tds_poll_wakeup	TDSPOLLWAKEUP

typedef struct tds_result_info	TDSRESULTINFO
	Hold information for any results.

typedef int	TDSRET

typedef struct tds_socket	TDSSOCKET

typedef struct tds_upd_col	TDSUPDCOL

typedef struct tds_variant	TDSVARIANT
	Store variant informations.

Enumerations
enum	{ TDS_CUR_ISTAT_UNUSED = 0x00 , TDS_CUR_ISTAT_DECLARED = 0x01 , TDS_CUR_ISTAT_OPEN = 0x02 , TDS_CUR_ISTAT_CLOSED = 0x04 , TDS_CUR_ISTAT_RDONLY = 0x08 , TDS_CUR_ISTAT_UPDATABLE = 0x10 , TDS_CUR_ISTAT_ROWCNT = 0x20 , TDS_CUR_ISTAT_DEALLOC = 0x40 }

enum	{ TDS_TYPEFLAG_INVALID = 0 , TDS_TYPEFLAG_NULLABLE = 1 , TDS_TYPEFLAG_FIXED = 2 , TDS_TYPEFLAG_VARIABLE = 4 , TDS_TYPEFLAG_COLLATE = 8 , TDS_TYPEFLAG_ASCII = 16 , TDS_TYPEFLAG_UNICODE = 32 , TDS_TYPEFLAG_BINARY = 64 , TDS_TYPEFLAG_DATETIME = 128 , TDS_TYPEFLAG_NUMERIC = 256 , TDS_TYPEFLAG_VARIANT = 512 }

enum	tds_bcp_directions { TDS_BCP_IN = 1 , TDS_BCP_OUT = 2 , TDS_BCP_QUERYOUT = 3 }
	bcp direction

enum	tds_cursor_fetch { TDS_CURSOR_FETCH_NEXT = 1 , TDS_CURSOR_FETCH_PREV , TDS_CURSOR_FETCH_FIRST , TDS_CURSOR_FETCH_LAST , TDS_CURSOR_FETCH_ABSOLUTE , TDS_CURSOR_FETCH_RELATIVE }

enum	tds_cursor_operation { TDS_CURSOR_POSITION = 0 , TDS_CURSOR_UPDATE = 1 , TDS_CURSOR_DELETE = 2 , TDS_CURSOR_INSERT = 4 }

enum	TDS_CURSOR_STATE { TDS_CURSOR_STATE_UNACTIONED = 0 , TDS_CURSOR_STATE_REQUESTED = 1 , TDS_CURSOR_STATE_SENT = 2 , TDS_CURSOR_STATE_ACTIONED = 3 }

enum	tds_encryption_level { TDS_ENCRYPTION_DEFAULT , TDS_ENCRYPTION_OFF , TDS_ENCRYPTION_REQUEST , TDS_ENCRYPTION_REQUIRE }

enum	tds_end { TDS_DONE_FINAL = 0x00 , TDS_DONE_MORE_RESULTS = 0x01 , TDS_DONE_ERROR = 0x02 , TDS_DONE_INXACT = 0x04 , TDS_DONE_PROC = 0x08 , TDS_DONE_COUNT = 0x10 , TDS_DONE_CANCELLED = 0x20 , TDS_DONE_EVENT = 0x40 , TDS_DONE_SRVERROR = 0x100 , TDS_DONE_NO_TRAN = 0 , TDS_DONE_TRAN_SUCCEED = 1 , TDS_DONE_TRAN_PROGRESS = 2 , TDS_DONE_STMT_ABORT = 3 , TDS_DONE_TRAN_ABORT = 4 }
	Flags returned in TDS_DONE token. More...

enum	TDS_ICONV_ENTRY { client2ucs2 , client2server_chardata , initial_char_conv_count }

enum	TDS_MULTIPLE_TYPE { TDS_MULTIPLE_QUERY , TDS_MULTIPLE_EXECUTE , TDS_MULTIPLE_RPC }

enum	tds_operations { TDS_OP_NONE = 0 , TDS_OP_CURSOR = TDS_SP_CURSOR , TDS_OP_CURSOROPEN = TDS_SP_CURSOROPEN , TDS_OP_CURSORPREPARE = TDS_SP_CURSORPREPARE , TDS_OP_CURSOREXECUTE = TDS_SP_CURSOREXECUTE , TDS_OP_CURSORPREPEXEC = TDS_SP_CURSORPREPEXEC , TDS_OP_CURSORUNPREPARE = TDS_SP_CURSORUNPREPARE , TDS_OP_CURSORFETCH = TDS_SP_CURSORFETCH , TDS_OP_CURSOROPTION = TDS_SP_CURSOROPTION , TDS_OP_CURSORCLOSE = TDS_SP_CURSORCLOSE , TDS_OP_EXECUTESQL = TDS_SP_EXECUTESQL , TDS_OP_PREPARE = TDS_SP_PREPARE , TDS_OP_EXECUTE = TDS_SP_EXECUTE , TDS_OP_PREPEXEC = TDS_SP_PREPEXEC , TDS_OP_PREPEXECRPC = TDS_SP_PREPEXECRPC , TDS_OP_UNPREPARE = TDS_SP_UNPREPARE , TDS_OP_DYN_DEALLOC = 100 }

enum	tds_states { TDS_IDLE , TDS_WRITING , TDS_SENDING , TDS_PENDING , TDS_READING , TDS_DEAD }
	values for tds->state More...

enum	tds_token_flags { TDS_HANDLE_ALL = 0 , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_FLAG =(OTHERS) , TDS_TOKEN_RESULTS = TDS_RETURN_ROWFMT\|TDS_RETURN_COMPUTEFMT\|TDS_RETURN_DONE\|TDS_STOPAT_ROW\|TDS_STOPAT_COMPUTE\|TDS_RETURN_PROC , TDS_TOKEN_TRAILING = TDS_STOPAT_ROWFMT\|TDS_STOPAT_COMPUTEFMT\|TDS_STOPAT_ROW\|TDS_STOPAT_COMPUTE\|TDS_STOPAT_MSG\|TDS_STOPAT_OTHERS }

enum	tds_token_results { TDS_TOKEN_RES_OTHERS , TDS_TOKEN_RES_ROWFMT , TDS_TOKEN_RES_COMPUTEFMT , TDS_TOKEN_RES_PARAMFMT , TDS_TOKEN_RES_DONE , TDS_TOKEN_RES_ROW , TDS_TOKEN_RES_COMPUTE , TDS_TOKEN_RES_PROC , TDS_TOKEN_RES_MSG , TDS_TOKEN_RES_ENV }

enum	TDSERRNO { TDSEOK = TDS_SUCCESS , TDSEVERDOWN = 100 , TDSEINPROGRESS , TDSEICONVIU = 2400 , TDSEICONVAVAIL = 2401 , TDSEICONVO = 2402 , TDSEICONVI = 2403 , TDSEICONV2BIG = 2404 , TDSEPORTINSTANCE = 2500 , TDSESYNC = 20001 , TDSEFCON = 20002 , TDSETIME = 20003 , TDSEREAD = 20004 , TDSEWRIT = 20006 , TDSESOCK = 20008 , TDSECONN = 20009 , TDSEMEM = 20010 , TDSEINTF = 20012 , TDSEUHST = 20013 , TDSEPWD = 20014 , TDSESEOF = 20017 , TDSERPND = 20019 , TDSEBTOK = 20020 , TDSEOOB = 20022 , TDSECLOS = 20056 , TDSEUSCT = 20058 , TDSEUTDS = 20146 , TDSEEUNR = 20185 , TDSECAP = 20203 , TDSENEG = 20210 , TDSEUMSG = 20212 , TDSECAPTYP = 20213 , TDSECONF = 20214 , TDSEBPROBADTYP = 20250 , TDSECLOSEIN = 20292 }

Functions
static bool	is_tds_type_valid (int type)

TDSRET	tds5_gss_send (TDSSOCKET *tds)

TDSAUTHENTICATION *	tds5_negotiate_get_auth (TDSSOCKET *tds)

static void	tds5_negotiate_set_msg_type (TDSAUTHENTICATION *tds_auth, unsigned msg_type)

int	tds5_send_optioncmd (TDSSOCKET tds, TDS_OPTION_CMD tds_command, TDS_OPTION tds_option, TDS_OPTION_ARG tds_argument, TDS_INT *tds_argsize)

TDSRET	tds71_submit_prepexec (TDSSOCKET tds, const char query, const char id, TDSDYNAMIC dyn_out, TDSPARAMINFO params)
	Creates a temporary stored procedure in the server and execute it.

int	tds7_get_instance_port (struct addrinfo addr, const char instance)
	Get port of given instance.

int	tds7_get_instance_ports (FILE output, struct addrinfo addr)
	Get port of all instances.

void	tds7_srv_charset_changed (TDSCONNECTION *conn, TDS_UCHAR collate[5])

const char *	tds_addrinfo2str (struct addrinfo addr, char name, int namemax)

TDSSOCKET *	tds_alloc_additional_socket (TDSCONNECTION *conn)

BCPCOLDATA *	tds_alloc_bcp_column_data (unsigned int column_size)

TDSBCPINFO *	tds_alloc_bcpinfo (void)

char *	tds_alloc_client_sqlstate (int msgno)

TDSCOMPUTEINFO **	tds_alloc_compute_results (TDSSOCKET *tds, TDS_USMALLINT num_cols, TDS_USMALLINT by_cols)

TDSRET	tds_alloc_compute_row (TDSCOMPUTEINFO *res_info)

TDSCONTEXT *	tds_alloc_context (void *parent)

TDSCURSOR *	tds_alloc_cursor (TDSSOCKET tds, const char name, TDS_INT namelen, const char *query, TDS_INT querylen)

TDSDYNAMIC *	tds_alloc_dynamic (TDSCONNECTION conn, const char id)
	Allocate a dynamic statement.

TDSLOCALE *	tds_alloc_locale (void)

TDSLOGIN *	tds_alloc_login (int use_environment)

char *	tds_alloc_lookup_sqlstate (TDSSOCKET *tds, int msgno)

TDSPACKET *	tds_alloc_packet (void *buf, unsigned len)

void *	tds_alloc_param_data (TDSCOLUMN *curparam)
	Allocate data for a parameter.

TDSPARAMINFO *	tds_alloc_param_result (TDSPARAMINFO *old_param)
	Adds a output parameter to TDSPARAMINFO.

TDSRESULTINFO *	tds_alloc_results (TDS_USMALLINT num_cols)

TDSRET	tds_alloc_row (TDSRESULTINFO *res_info)
	Allocate space for row store return NULL on out of memory.

TDSSOCKET *	tds_alloc_socket (TDSCONTEXT *context, unsigned int bufsize)

TDSRET	tds_bcp_done (TDSSOCKET tds, int rows_copied)
	Tell we finished sending BCP data to server.

TDSRET	tds_bcp_fread (TDSSOCKET tds, TDSICONV conv, FILE stream, const char terminator, size_t term_len, char *outbuf, size_t outbytes)
	Read a data file, passing the data through iconv().

TDSRET	tds_bcp_init (TDSSOCKET tds, TDSBCPINFO bcpinfo)
	Initialize BCP information.

TDSRET	tds_bcp_send_record (TDSSOCKET tds, TDSBCPINFO bcpinfo, tds_bcp_get_col_data get_col_data, tds_bcp_null_error null_error, int offset)
	Send one row of data to server.

TDSRET	tds_bcp_start (TDSSOCKET tds, TDSBCPINFO bcpinfo)
	Start sending BCP data to server.

TDSRET	tds_bcp_start_copy_in (TDSSOCKET tds, TDSBCPINFO bcpinfo)
	Start bulk copy to server.

static bool	tds_capability_enabled (const TDS_CAPABILITY_TYPE *cap, unsigned cap_num)

void	tds_close_socket (TDSSOCKET *tds)
	Close current socket.

int	tds_config_boolean (const char option, const char value, TDSLOGIN *login)

TDS_USMALLINT *	tds_config_verstr (const char tdsver, TDSLOGIN login)
	Set TDS version from given string.

int	tds_connect_and_login (TDSSOCKET tds, TDSLOGIN login)

void	tds_connection_close (TDSCONNECTION *conn)

int	tds_connection_read (TDSSOCKET tds, unsigned char buf, int buflen)

int	tds_connection_write (TDSSOCKET tds, const unsigned char buf, int buflen, int final)

const char *	tds_convert_string (TDSSOCKET tds, TDSICONV char_conv, const char s, int len, size_t out_len)
	Convert a string in an allocated buffer.

void	tds_convert_string_free (const char original, const char converted)

int	tds_count_placeholders (const char *query)
	Count the number of placeholders ('?') in a query.

TDSRET	tds_cursor_close (TDSSOCKET tds, TDSCURSOR cursor)

TDSRET	tds_cursor_dealloc (TDSSOCKET tds, TDSCURSOR cursor)
	Send a deallocation request to server.

void	tds_cursor_deallocated (TDSCONNECTION conn, TDSCURSOR cursor)

TDSRET	tds_cursor_declare (TDSSOCKET tds, TDSCURSOR cursor, TDSPARAMINFO params, int send)

TDSRET	tds_cursor_fetch (TDSSOCKET tds, TDSCURSOR cursor, TDS_CURSOR_FETCH fetch_type, TDS_INT i_row)

TDSRET	tds_cursor_get_cursor_info (TDSSOCKET tds, TDSCURSOR cursor, TDS_UINT row_number, TDS_UINT row_count)

TDSRET	tds_cursor_open (TDSSOCKET tds, TDSCURSOR cursor, TDSPARAMINFO params, int send)

TDSRET	tds_cursor_setname (TDSSOCKET tds, TDSCURSOR cursor)

TDSRET	tds_cursor_setrows (TDSSOCKET tds, TDSCURSOR cursor, int *send)

TDSRET	tds_cursor_update (TDSSOCKET tds, TDSCURSOR cursor, TDS_CURSOR_OPERATION op, TDS_INT i_row, TDSPARAMINFO *params)

TDSRET	tds_datecrack (TDS_INT datetype, const void di, TDSDATEREC dr)
	Convert from db date format to a structured date format.

TDSRET	tds_deferred_cursor_dealloc (TDSCONNECTION conn, TDSCURSOR cursor)
	Deallocate cursor on idle.

TDSRET	tds_deferred_unprepare (TDSCONNECTION conn, TDSDYNAMIC dyn)
	Unprepare dynamic on idle.

void	tds_deinit_bcpinfo (TDSBCPINFO *bcpinfo)

void	tds_deinit_tvp (TDS_TVP *table)

void	tds_detach_results (TDSRESULTINFO *info)
	Detach result info from it current socket.

TDSRET	tds_disconnect (TDSSOCKET *tds)

DSTR *	tds_dstr_get (TDSSOCKET tds, DSTR s, size_t len)
	Reads a string from wire and put in a DSTR.

void	tds_dynamic_deallocated (TDSCONNECTION conn, TDSDYNAMIC dyn)

size_t	tds_fix_column_size (TDSSOCKET tds, TDSCOLUMN curcol)
	Get column size for wire.

void	tds_fix_login (TDSLOGIN *login)
	Fix configuration after reading it.

TDSRET	tds_flush_packet (TDSSOCKET *tds)
	Flush packet to server.

void	tds_free_all_results (TDSSOCKET *tds)

void	tds_free_bcp_column_data (BCPCOLDATA *coldata)

void	tds_free_bcpinfo (TDSBCPINFO *bcpinfo)

void	tds_free_context (TDSCONTEXT *locale)

void	tds_free_input_params (TDSDYNAMIC *dyn)
	Frees all allocated input parameters of a dynamic statement.

void	tds_free_locale (TDSLOCALE *locale)

void	tds_free_login (TDSLOGIN *login)

void	tds_free_msg (TDSMESSAGE *message)

void	tds_free_packets (TDSPACKET *packet)

void	tds_free_param_result (TDSPARAMINFO *param_info)
	Delete latest parameter.

void	tds_free_param_results (TDSPARAMINFO *param_info)

void	tds_free_results (TDSRESULTINFO *res_info)

void	tds_free_row (TDSRESULTINFO res_info, unsigned char row)

void	tds_free_socket (TDSSOCKET *tds)

void	tds_freeze (TDSSOCKET tds, TDSFREEZE freeze, unsigned size_len)
	Stop writing to server and cache every packet not sending them to server.

TDSRET	tds_freeze_abort (TDSFREEZE *freeze)
	Discard all data written after the freeze.

TDSRET	tds_freeze_close (TDSFREEZE *freeze)
	Stop keeping data for this specific freeze.

TDSRET	tds_freeze_close_len (TDSFREEZE *freeze, int32_t size)
	Stop keeping data for this specific freeze.

size_t	tds_freeze_written (TDSFREEZE *freeze)
	Compute how many bytes has been written from freeze.

unsigned char	tds_get_byte (TDSSOCKET *tds)
	Return a single byte from the input buffer.

TDS_SERVER_TYPE	tds_get_cardinal_type (TDS_SERVER_TYPE datatype, int usertype)

TDSRET	tds_get_char_data (TDSSOCKET tds, char dest, size_t wire_size, TDSCOLUMN *curcol)
	Fetch character data the wire.

TDSRET	tds_get_column_declaration (TDSSOCKET tds, TDSCOLUMN curcol, char *out)
	Return declaration for column (like "varchar(20)").

const TDS_COMPILETIME_SETTINGS *	tds_get_compiletime_settings (void)
	Return a structure capturing the compile-time settings provided to the configure script.

TDS_SERVER_TYPE	tds_get_conversion_type (TDS_SERVER_TYPE srctype, int colsize)
	Return type suitable for conversions (convert all nullable types to fixed type)

char *	tds_get_home_file (const char *file)
	Return filename from HOME directory.

TDSLOCALE *	tds_get_locale (void)
	Get locale information.

bool	tds_get_n (TDSSOCKET tds, void dest, size_t n)
	Get N bytes from the buffer and return them in the already allocated space given to us.

int	tds_get_size_by_type (TDS_SERVER_TYPE servertype)
	Return the number of bytes needed by specified type.

size_t	tds_get_string (TDSSOCKET tds, size_t string_len, char dest, size_t dest_size)
	Fetch a string from the wire.

TDS_UINT	tds_get_uint (TDSSOCKET *tds)
	Get an int32 from the server.

TDS_UINT8	tds_get_uint8 (TDSSOCKET *tds)
	Get an uint64 from the server.

TDS_USMALLINT	tds_get_usmallint (TDSSOCKET *tds)
	Get an int16 from the server.

int	tds_get_varint_size (TDSCONNECTION *conn, int datatype)
	tds_get_varint_size() returns the size of a variable length integer returned in a result string

void	tds_getmac (TDS_SYS_SOCKET s, unsigned char mac[6])

unsigned int	tds_gettime_ms (void)

int	tds_goodread (TDSSOCKET tds, unsigned char buf, int buflen)
	Loops until we have received some characters return -1 on failure.

int	tds_goodwrite (TDSSOCKET tds, const unsigned char buffer, size_t buflen)

TDSAUTHENTICATION *	tds_gss_get_auth (TDSSOCKET *tds)

int	tds_iconv_alloc (TDSCONNECTION *conn)
	Allocate iconv stuff.

void	tds_iconv_close (TDSCONNECTION *conn)

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)

TDSRET	tds_iconv_open (TDSCONNECTION conn, const char charset, int use_utf16)

TDSLOGIN *	tds_init_login (TDSLOGIN login, TDSLOCALE locale)
	Initialize login structure with locale information and other stuff for connection.

int	tds_init_write_buf (TDSSOCKET *tds)

TDSDYNAMIC *	tds_lookup_dynamic (TDSCONNECTION conn, const char id)
	Finds a dynamic given string id.

struct addrinfo *	tds_lookup_host (const char *servername)
	Get the IP address for a hostname.

TDSRET	tds_lookup_host_set (const char servername, struct addrinfo *addr)

char *	tds_money_to_string (const TDS_MONEY money, char s, bool use_2_digits)

TDSRET	tds_multiple_done (TDSSOCKET tds, TDSMULTIPLE multiple)

TDSRET	tds_multiple_execute (TDSSOCKET tds, TDSMULTIPLE multiple, TDSDYNAMIC *dyn)

TDSRET	tds_multiple_init (TDSSOCKET tds, TDSMULTIPLE multiple, TDS_MULTIPLE_TYPE type, TDSHEADERS *head)

TDSRET	tds_multiple_query (TDSSOCKET tds, TDSMULTIPLE multiple, const char query, TDSPARAMINFO params)

int	tds_needs_unprepare (TDSCONNECTION conn, TDSDYNAMIC dyn)
	Check if dynamic request must be unprepared.

const char *	tds_next_placeholder (const char *start)
	Get position of next placeholder.

TDSAUTHENTICATION *	tds_ntlm_get_auth (TDSSOCKET *tds)
	Build a NTLMSPP packet to send to server.

TDS_INT	tds_numeric_change_prec_scale (TDS_NUMERIC *numeric, unsigned char new_prec, unsigned char new_scale)

TDS_INT	tds_numeric_to_string (const TDS_NUMERIC numeric, char s)

TDSERRNO	tds_open_socket (TDSSOCKET tds, struct addrinfo ipaddr, unsigned int port, int timeout, int *p_oserr)

int	tds_parse_boolean (const char *value, int default_value)

void	tds_parse_conf_section (const char option, const char value, void *param)

unsigned char	tds_peek (TDSSOCKET *tds)
	Reads a byte from the TDS stream without removing it.

TDSRET	tds_process_cancel (TDSSOCKET *tds)

TDSRET	tds_process_login_tokens (TDSSOCKET *tds)
	tds_process_login_tokens() is called after sending the login packet to the server.

TDSRET	tds_process_simple_query (TDSSOCKET *tds)
	Process results for simple query as "SET TEXTSIZE" or "USE dbname" If the statement returns results, beware they are discarded.

TDSRET	tds_process_tokens (TDSSOCKET tds, TDS_INT result_type, int *done_flags, unsigned flag)
	process all streams.

const char *	tds_prtype (int token)
	Returns string representation of the given type.

char *	tds_prwsaerror (int erc)

void	tds_prwsaerror_free (char *s)

int	tds_put_buf (TDSSOCKET tds, const unsigned char buf, int dsize, int ssize)

int	tds_put_byte (TDSSOCKET *tds, unsigned char c)

int	tds_put_cancel (TDSSOCKET *tds)

int	tds_put_int (TDSSOCKET *tds, TDS_INT i)

int	tds_put_int8 (TDSSOCKET *tds, TDS_INT8 i)

int	tds_put_n (TDSSOCKET tds, const void buf, size_t n)

int	tds_put_smallint (TDSSOCKET *tds, TDS_SMALLINT si)

int	tds_put_string (TDSSOCKET tds, const char buf, int len)
	Output a string to wire automatic translate string to unicode if needed.

size_t	tds_quote_id (TDSSOCKET tds, char buffer, const char *id, int idlen)
	Quote an id.

size_t	tds_quote_id_rpc (TDSSOCKET tds, char buffer, const char *id, int idlen)
	Quote an id for a RPC call.

size_t	tds_quote_string (TDSSOCKET tds, char buffer, const char *str, int len)
	Quote a string.

void	tds_random_buffer (unsigned char *out, int len)

bool	tds_read_conf_file (TDSLOGIN login, const char server)
	Read configuration info for given server return 0 on error.

bool	tds_read_conf_section (FILE in, const char section, TDSCONFPARSE tds_conf_parse, void *parse_param)
	Read a section of configuration file (INI style file)

TDSLOGIN *	tds_read_config_info (TDSSOCKET tds, TDSLOGIN login, TDSLOCALE *locale)
	tds_read_config_info() will fill the tds connection structure based on configuration information gathered in the following order: 1) Program specified in TDSLOGIN structure 2) The environment variables TDSVER, TDSDUMP, TDSPORT, TDSQUERY, TDSHOST 3) A config file with the following search order: a) a readable file specified by environment variable FREETDSCONF b) a readable file in ~/.freetds.conf c) a readable file in $prefix/etc/freetds.conf 3) ~/.interfaces if exists 4) $SYBASE/interfaces if exists 5) TDS_DEF_* default values

int	tds_read_packet (TDSSOCKET *tds)
	Read in one 'packet' from the server.

void *	tds_realloc (void **pp, size_t new_size)
	Reallocate a pointer and update it if success.

TDSPACKET *	tds_realloc_packet (TDSPACKET *packet, unsigned len)

TDSSOCKET *	tds_realloc_socket (TDSSOCKET *tds, size_t bufsize)

static void	tds_release_cur_dyn (TDSSOCKET *tds)

void	tds_release_cursor (TDSCURSOR **pcursor)

void	tds_release_dynamic (TDSDYNAMIC **dyn)
	Frees dynamic statement.

int	tds_select (TDSSOCKET *tds, unsigned tds_sel, int timeout_seconds)
	Select on a socket until it's available or the timeout expires.

TDSRET	tds_send_cancel (TDSSOCKET *tds)
	tds_send_cancel() sends an empty packet (8 byte header only) tds_process_cancel should be called directly after this.

bool	tds_set_app (TDSLOGIN tds_login, const char application) TDS_WUR

void	tds_set_bulk (TDSLOGIN *tds_login, bool enabled)

bool	tds_set_client_charset (TDSLOGIN tds_login, const char charset) TDS_WUR

void	tds_set_column_type (TDSCONNECTION conn, TDSCOLUMN curcol, TDS_SERVER_TYPE type)
	Set type of column initializing all dependency.

void	tds_set_cur_dyn (TDSSOCKET tds, TDSDYNAMIC dyn)
	Set current dynamic.

void	tds_set_current_results (TDSSOCKET tds, TDSRESULTINFO info)

static void	tds_set_current_send_packet (TDSSOCKET tds, TDSPACKET pkt)

bool	tds_set_host (TDSLOGIN tds_login, const char hostname) TDS_WUR

TDSRET	tds_set_interfaces_file_loc (const char *interfloc)
	Set the full name of interface file.

bool	tds_set_language (TDSLOGIN tds_login, const char language) TDS_WUR

bool	tds_set_library (TDSLOGIN tds_login, const char library) TDS_WUR

void	tds_set_packet (TDSLOGIN *tds_login, int packet_size)

void	tds_set_param_type (TDSCONNECTION conn, TDSCOLUMN curcol, TDS_SERVER_TYPE type)
	Set type of column initializing all dependency.

bool	tds_set_passwd (TDSLOGIN tds_login, const char password) TDS_WUR

void	tds_set_port (TDSLOGIN *tds_login, int port)

bool	tds_set_server (TDSLOGIN tds_login, const char server) TDS_WUR
	Set the servername in a TDSLOGIN structure.

TDS_STATE	tds_set_state (TDSSOCKET *tds, TDS_STATE state)
	Set state of TDS connection, with logging and checking.

bool	tds_set_user (TDSLOGIN tds_login, const char username) TDS_WUR

void	tds_set_version (TDSLOGIN *tds_login, TDS_TINYINT major_ver, TDS_TINYINT minor_ver)

const char *	tds_skip_comment (const char *s)
	Skip a comment in a query.

const char *	tds_skip_quoted (const char *s)
	Skip quoting string (like 'sfsf', "dflkdj" or [dfkjd])

void	tds_socket_flush (TDS_SYS_SOCKET sock)

int	tds_socket_set_nonblocking (TDS_SYS_SOCKET sock)
	Set socket to non-blocking.

void	tds_srv_charset_changed (TDSCONNECTION conn, const char charset)

void	tds_start_query (TDSSOCKET *tds, unsigned char packet_type)
	Start query packet of a given type.

char *	tds_strndup (const void *s, TDS_INTPTR len)
	Copy a string of length len to a new allocated buffer This function does not read more than len bytes.

TDSRET	tds_submit_begin_tran (TDSSOCKET *tds)
	Send a rollback request.

TDSRET	tds_submit_commit (TDSSOCKET *tds, bool cont)
	Send a commit request.

TDSRET	tds_submit_execdirect (TDSSOCKET tds, const char query, TDSPARAMINFO params, TDSHEADERS head)
	Submit a prepared query with parameters.

TDSRET	tds_submit_execute (TDSSOCKET tds, TDSDYNAMIC dyn)
	Sends a previously prepared dynamic statement to the server.

TDSRET	tds_submit_optioncmd (TDSSOCKET tds, TDS_OPTION_CMD command, TDS_OPTION option, TDS_OPTION_ARG param, TDS_INT param_size)
	Send option commands to server.

TDSRET	tds_submit_prepare (TDSSOCKET tds, const char query, const char id, TDSDYNAMIC dyn_out, TDSPARAMINFO params)
	Creates a temporary stored procedure in the server.

TDSRET	tds_submit_query (TDSSOCKET tds, const char query)
	Sends a language string to the database server for processing.

TDSRET	tds_submit_query_params (TDSSOCKET tds, const char query, TDSPARAMINFO params, TDSHEADERS head)
	Sends a language string to the database server for processing.

TDSRET	tds_submit_queryf (TDSSOCKET tds, const char queryf,...)
	Format and submit a query.

TDSRET	tds_submit_rollback (TDSSOCKET *tds, bool cont)
	Send a rollback request.

TDSRET	tds_submit_rpc (TDSSOCKET tds, const char rpc_name, TDSPARAMINFO params, TDSHEADERS head)
	Calls a RPC from server.

TDSRET	tds_submit_unprepare (TDSSOCKET tds, TDSDYNAMIC dyn)
	Send a unprepare request for a prepared query.

void	tds_swap_bytes (void *buf, int bytes)

void	tds_unget_byte (TDSSOCKET *tds)
	Unget will always work as long as you don't call it twice in a row.

TDSRET	tds_vstrbuild (char buffer, int buflen, int resultlen, const char text, int textlen, const char formats, int formatlen, va_list ap)

void	tds_wakeup_close (TDSPOLLWAKEUP *wakeup)

static TDS_SYS_SOCKET	tds_wakeup_get_fd (const TDSPOLLWAKEUP *wakeup)

int	tds_wakeup_init (TDSPOLLWAKEUP *wakeup)

void	tds_wakeup_send (TDSPOLLWAKEUP *wakeup, char cancel)

TDSRET	tds_write_packet (TDSSOCKET *tds, unsigned char final)

TDSRET	tds_writetext_continue (TDSSOCKET tds, const TDS_UCHAR text, TDS_UINT size)
	Send some data in the writetext request started by tds_writetext_start.

TDSRET	tds_writetext_end (TDSSOCKET *tds)
	Finish sending writetext data.

TDSRET	tds_writetext_start (TDSSOCKET tds, const char objname, const char textptr, const char timestamp, int with_log, TDS_UINT size)
	Start writing writetext request.

void	tdsdump_close (void)
	Close the TDS dump log file.

void	tdsdump_col (const TDSCOLUMN *col)
	Write a column value to the debug log.

void	tdsdump_dump_buf (const char file, unsigned int level_line, const char msg, const void *buf, size_t length)
	Dump the contents of data into the log file in a human readable format.

int	tdsdump_isopen (void)

void	tdsdump_log (const char file, unsigned int level_line, const char fmt,...)
	Write a message to the debug log.

void	tdsdump_off (TDSDUMP_OFF_ITEM *off_item)
	Temporarily turn off logging for current thread.

void	tdsdump_on (TDSDUMP_OFF_ITEM *off_item)
	Turn logging back on for current thread.

int	tdsdump_open (const char *filename)
	Create and truncate a human readable dump file for the TDS traffic.

int	tdserror (const TDSCONTEXT tds_ctx, TDSSOCKET tds, int msgno, int errnum)
	Call the client library's error handler (for library-generated errors only)

Variables
const char	STD_DATETIME_FMT []

int	tds_debug_flags

int	tds_g_append_mode

const char	tds_hex_digits []

const int	tds_numeric_bytes_per_prec []
	The following little table is indexed by precision and will tell us the number of bytes required to store the specified precision.

const uint16_t	tds_type_flags_ms [256]

int	tds_write_dump
	Tell if TDS debug logging is turned on or off.

Detailed Description

Main include file for libtds.

Macro Definition Documentation

◆ TDS_BYTE_SWAP16

#define TDS_BYTE_SWAP16 ( value )

Value:

(((((uint16_t)value)<<8) & 0xFF00u) | \

((((uint16_t)value)>>8) & 0x00FFu))

◆ TDS_BYTE_SWAP32

#define TDS_BYTE_SWAP32 ( value )

Value:

         (((((uint32_t)value)<<24) & 0xFF000000u)| \
          ((((uint32_t)value)<< 8) & 0x00FF0000u)| \
          ((((uint32_t)value)>> 8) & 0x0000FF00u)| \
          ((((uint32_t)value)>>24) & 0x000000FFu))

◆ TDS_IS_MSSQL

#define TDS_IS_MSSQL ( x ) (((x)->conn->product_version & 0x80000000u)!=0)

Check if product is Microsft SQL Server.

x should be a TDSSOCKET*.

◆ TDS_IS_SYBASE

#define TDS_IS_SYBASE ( x ) (!((x)->conn->product_version & 0x80000000u))

Check if product is Sybase (such as Adaptive Server Enterrprice).

x should be a TDSSOCKET*.

◆ TDS_MS_VER

#define TDS_MS_VER	(	maj,
		min,
		x
	)	(0x80000000u\|((maj)<<24)\|((min)<<16)\|(x))

Calc a version number for mssql.

Use with TDS_MS_VER(7,0,842). For test for a range of version you can use check like if (tds->product_version >= TDS_MS_VER(7,0,0) && tds->product_version < TDS_MS_VER(8,0,0))

◆ TDS_START_LEN_GENERIC

#define TDS_START_LEN_GENERIC	(	tds_socket,
		len
	)

Value:

    do { \
    TDSFREEZE current_freeze[1]; \
    tds_freeze((tds_socket), current_freeze, (len)); do { do

Typedef Documentation

◆ TDS_COMPILETIME_SETTINGS

typedef struct tds_compiletime_settings TDS_COMPILETIME_SETTINGS

A structure to hold all the compile-time settings.

This structure is returned by tds_get_compiletime_settings

◆ TDS_ENCODING

typedef struct tds_encoding TDS_ENCODING

Information relevant to libiconv.

The name is an iconv name, not the same as found in master..syslanguages.

◆ TDSBLOB

typedef struct tds_blob TDSBLOB

Information about blobs (e.g.

text or image). current_row contains this structure.

Enumeration Type Documentation

◆ tds_end

enum tds_end

Flags returned in TDS_DONE token.

Enumerator
TDS_DONE_FINAL	final result set, command completed successfully.
TDS_DONE_MORE_RESULTS	more results follow
TDS_DONE_ERROR	error occurred
TDS_DONE_INXACT	transaction in progress
TDS_DONE_PROC	results are from a stored procedure
TDS_DONE_COUNT	count field in packet is valid
TDS_DONE_CANCELLED	acknowledging an attention command (usually a cancel)
TDS_DONE_SRVERROR	SQL server server error.

◆ tds_states

enum tds_states

values for tds->state

Enumerator
TDS_IDLE	no data expected
TDS_WRITING	client is writing data
TDS_SENDING	client would send data
TDS_PENDING	cilent is waiting for data
TDS_READING	client is reading data
TDS_DEAD	no connection

Function Documentation

◆ tds_bcp_done()

TDSRET tds_bcp_done	(	TDSSOCKET *	tds,
		int *	rows_copied
	)

Tell we finished sending BCP data to server.

Parameters

	tds	A pointer to the TDSSOCKET structure managing a client/server operation.
[out]	rows_copied	number of rows copied to server

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◆ tds_bcp_fread()

TDSRET tds_bcp_fread	(	TDSSOCKET *	tds,
		TDSICONV *	char_conv,
		FILE *	stream,
		const char *	terminator,
		size_t	term_len,
		char **	outbuf,
		size_t *	outbytes
	)

Read a data file, passing the data through iconv().

Return values

TDS_SUCCESS	success
TDS_FAIL	error reading the column
TDS_NO_MORE_RESULTS	end of file detected

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◆ tds_bcp_init()

TDSRET tds_bcp_init	(	TDSSOCKET *	tds,
		TDSBCPINFO *	bcpinfo
	)

Initialize BCP information.

Query structure of the table to server.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.
bcpinfo	BCP information to initialize. Structure should be allocate and table name and direction should be already set.

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◆ tds_bcp_send_record()

TDSRET tds_bcp_send_record	(	TDSSOCKET *	tds,
		TDSBCPINFO *	bcpinfo,
		tds_bcp_get_col_data	get_col_data,
		tds_bcp_null_error	null_error,
		int	offset
	)

Send one row of data to server.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.
bcpinfo	BCP information
get_col_data	function to call to retrieve data to be sent
ignored	function to call if we try to send NULL if not allowed (not used)
offset	passed to get_col_data and null_error to specify the row to get

Returns: TDS_SUCCESS or TDS_FAIL.

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◆ tds_bcp_start()

TDSRET tds_bcp_start	(	TDSSOCKET *	tds,
		TDSBCPINFO *	bcpinfo
	)

Start sending BCP data to server.

Initialize stream to accept data.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.
bcpinfo	BCP information already prepared

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◆ tds_bcp_start_copy_in()

TDSRET tds_bcp_start_copy_in	(	TDSSOCKET *	tds,
		TDSBCPINFO *	bcpinfo
	)

Start bulk copy to server.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.
bcpinfo	BCP information already prepared

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◆ tds_get_conversion_type()

TDS_SERVER_TYPE tds_get_conversion_type	(	TDS_SERVER_TYPE	srctype,
		int	colsize
	)

Return type suitable for conversions (convert all nullable types to fixed type)

Parameters

srctype	type to convert
colsize	size of type

Returns: type for conversion

◆ tds_get_locale()

TDSLOCALE * tds_get_locale ( void )

Get locale information.

Returns: allocated structure with all information or NULL if error

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◆ tds_iconv_alloc()

int tds_iconv_alloc ( TDSCONNECTION * conn )

Allocate iconv stuff.

Returns: 0 for success

◆ tds_numeric_to_string()

TDS_INT tds_numeric_to_string	(	const TDS_NUMERIC *	numeric,
		char *	s
	)

Returns: <0 if error

◆ tds_set_column_type()

void tds_set_column_type	(	TDSCONNECTION *	conn,
		TDSCOLUMN *	curcol,
		TDS_SERVER_TYPE	type
	)

Set type of column initializing all dependency.

column_usertype should already be set.

Parameters

curcol	column to set
type	type to set

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◆ tds_set_param_type()

void tds_set_param_type	(	TDSCONNECTION *	conn,
		TDSCOLUMN *	curcol,
		TDS_SERVER_TYPE	type
	)

Set type of column initializing all dependency.

Parameters

tds	state information for the socket and the TDS protocol
curcol	column to set
type	type to set

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◆ tds_set_server()

bool tds_set_server	(	TDSLOGIN *	tds_login,
		const char *	server
	)

Set the servername in a TDSLOGIN structure.

Normally copies server into tds_login. If server does not point to a plausible name, the environment variables TDSQUERY and DSQUERY are used, in that order. If they don't exist, the "default default" servername is "SYBASE" (although the utility of that choice is a bit murky).

Parameters

tds_login	points to a TDSLOGIN structure
server	the servername, or NULL, or a zero-length string

Todo:: open the log file earlier, so these messages can be seen.

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◆ tds_set_state()

TDS_STATE tds_set_state	(	TDSSOCKET *	tds,
		TDS_STATE	state
	)

Set state of TDS connection, with logging and checking.

Parameters

tds	state information for the socket and the TDS protocol
state	the new state of the connection, cf. TDS_STATE.

Returns: the new state, which might not be state.

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◆ tds_strndup()

char * tds_strndup	(	const void *	s,
		TDS_INTPTR	len
	)

Copy a string of length len to a new allocated buffer This function does not read more than len bytes.

Please note that some system implementations of strndup do not assure they don't read past len bytes as they use still strlen to check length to copy limiting after strlen to size passed. String returned is NUL terminated.

Parameters

s	string to copy from
len	length to copy

Returns: string copied or NULL if errors

◆ tds_writetext_continue()

TDSRET tds_writetext_continue	(	TDSSOCKET *	tds,
		const TDS_UCHAR *	text,
		TDS_UINT	size
	)

Send some data in the writetext request started by tds_writetext_start.

You should write in total (with multiple calls to this function) all bytes declared calling tds_writetext_start.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.
text	data to write
size	data size in bytes

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◆ tds_writetext_end()

TDSRET tds_writetext_end ( TDSSOCKET * tds )

Finish sending writetext data.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.

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◆ tds_writetext_start()

TDSRET tds_writetext_start	(	TDSSOCKET *	tds,
		const char *	objname,
		const char *	textptr,
		const char *	timestamp,
		int	with_log,
		TDS_UINT	size
	)

Start writing writetext request.

This request start a bulk session.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.
objname	table name
textptr	TEXTPTR (see sql documentation)
timestamp	data timestamp
with_log	is log is enabled during insert
size	bytes to be inserted

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◆ tdsdump_col()

void tdsdump_col ( const TDSCOLUMN * col )

Write a column value to the debug log.

Parameters

col	column to dump

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◆ tdsdump_dump_buf()

void tdsdump_dump_buf	(	const char *	file,
		unsigned int	level_line,
		const char *	msg,
		const void *	buf,
		size_t	length
	)

Dump the contents of data into the log file in a human readable format.

Parameters

file	source file name
level_line	line and level combined. This and file are automatically computed by TDS_DBG_* macros.
msg	message to print before dump
buf	buffer to dump
length	number of bytes in the buffer

◆ tdsdump_log()

void tdsdump_log	(	const char *	file,
		unsigned int	level_line,
		const char *	fmt,
			...
	)

Write a message to the debug log.

Parameters

file	name of the log file
level_line	kind of detail to be included
fmt	printf-like format string

◆ tdsdump_off()

void tdsdump_off ( TDSDUMP_OFF_ITEM * off_item )

Temporarily turn off logging for current thread.

Parameters

off_item List item to be used by the function. The item will be initialized by the function. It's retained till is removed with tdsdump_on so it must be kept alive.

◆ tdsdump_on()

void tdsdump_on ( TDSDUMP_OFF_ITEM * off_item )

Turn logging back on for current thread.

Parameters

off_item List item to remove from global list. Previously used by tdsdump_off().

◆ tdsdump_open()

int tdsdump_open ( const char * filename )

Create and truncate a human readable dump file for the TDS traffic.

The name of the file is specified by the filename parameter. If that is given as NULL or an empty string, any existing log file will be closed.

Returns: true if the file was opened, false if it couldn't be opened.

◆ tdserror()

int tdserror	(	const TDSCONTEXT *	tds_ctx,
		TDSSOCKET *	tds,
		int	msgno,
		int	errnum
	)

Call the client library's error handler (for library-generated errors only)

The client library error handler may return: TDS_INT_CANCEL – Return TDS_FAIL to the calling function. For TDSETIME, closes the connection first. TDS_INT_CONTINUE – For TDSETIME only, retry the network read/write operation. Else invalid. TDS_INT_TIMEOUT – For TDSETIME only, send a TDSCANCEL packet. Else invalid.

These are Sybase semantics, but they serve all purposes.
The application tells the library to quit, fail, retry, or attempt to cancel. In the event of a network timeout, a failed operation necessarily means the connection becomes unusable, because no cancellation dialog was concluded with the server.

It is the client library's duty to call the error handler installed by the application, if any, and to interpret the installed handler's return code. It may return to this function one of the above codes only. This function will not check the return code because there's nothing that can be done here except abort. It is merely passed to the calling function, which will (we hope) DTRT.

Parameters

tds_ctx	points to a TDSCONTEXT structure
tds	the connection structure, may be NULL if not connected
msgno	an enumerated libtds msgno, cf. tds.h
errnum	the OS errno, if it matters, else zero

Returns: client library function's return code

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Variable Documentation

◆ tds_numeric_bytes_per_prec

const int tds_numeric_bytes_per_prec[]

extern

The following little table is indexed by precision and will tell us the number of bytes required to store the specified precision.

Support precision up to 77 digits

Classes

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ TDS_BYTE_SWAP16

◆ TDS_BYTE_SWAP32

◆ TDS_IS_MSSQL

◆ TDS_IS_SYBASE

◆ TDS_MS_VER

◆ TDS_START_LEN_GENERIC

Typedef Documentation

◆ TDS_COMPILETIME_SETTINGS

◆ TDS_ENCODING

◆ TDSBLOB

Enumeration Type Documentation

◆ tds_end

◆ tds_states

Function Documentation

◆ tds_bcp_done()

◆ tds_bcp_fread()

◆ tds_bcp_init()

◆ tds_bcp_send_record()

◆ tds_bcp_start()

◆ tds_bcp_start_copy_in()

◆ tds_get_conversion_type()

◆ tds_get_locale()

◆ tds_iconv_alloc()

◆ tds_numeric_to_string()

◆ tds_set_column_type()

◆ tds_set_param_type()

◆ tds_set_server()

◆ tds_set_state()

◆ tds_strndup()

◆ tds_writetext_continue()

◆ tds_writetext_end()

◆ tds_writetext_start()

◆ tdsdump_col()

◆ tdsdump_dump_buf()

◆ tdsdump_log()

◆ tdsdump_off()

◆ tdsdump_on()

◆ tdsdump_open()

◆ tdserror()

Variable Documentation

◆ tds_numeric_bytes_per_prec