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File://backup/ebm/home/mysql_old/include/mysql/mysql_com.h

/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

/*
** Common definition between mysql server & client
*/

#ifndef _mysql_com_h
#define _mysql_com_h

#define HOSTNAME_LENGTH 60
#define SYSTEM_CHARSET_MBMAXLEN 3
#define NAME_CHAR_LEN	64              /* Field/table name length */
#define USERNAME_CHAR_LENGTH 16
#define NAME_LEN                (NAME_CHAR_LEN*SYSTEM_CHARSET_MBMAXLEN)
#define USERNAME_LENGTH         (USERNAME_CHAR_LENGTH*SYSTEM_CHARSET_MBMAXLEN)

#define SERVER_VERSION_LENGTH 60
#define SQLSTATE_LENGTH 5

/*
  USER_HOST_BUFF_SIZE -- length of string buffer, that is enough to contain
  username and hostname parts of the user identifier with trailing zero in
  MySQL standard format:
  user_name_part@host_name_part\0
*/
#define USER_HOST_BUFF_SIZE HOSTNAME_LENGTH + USERNAME_LENGTH + 2

#define LOCAL_HOST	"localhost"
#define LOCAL_HOST_NAMEDPIPE "."


#if defined(__WIN__) && !defined( _CUSTOMCONFIG_)
#define MYSQL_NAMEDPIPE "MySQL"
#define MYSQL_SERVICENAME "MySQL"
#endif /* __WIN__ */

/*
  You should add new commands to the end of this list, otherwise old
  servers won't be able to handle them as 'unsupported'.
*/

enum enum_server_command
{
  COM_SLEEP, COM_QUIT, COM_INIT_DB, COM_QUERY, COM_FIELD_LIST,
  COM_CREATE_DB, COM_DROP_DB, COM_REFRESH, COM_SHUTDOWN, COM_STATISTICS,
  COM_PROCESS_INFO, COM_CONNECT, COM_PROCESS_KILL, COM_DEBUG, COM_PING,
  COM_TIME, COM_DELAYED_INSERT, COM_CHANGE_USER, COM_BINLOG_DUMP,
  COM_TABLE_DUMP, COM_CONNECT_OUT, COM_REGISTER_SLAVE,
  COM_STMT_PREPARE, COM_STMT_EXECUTE, COM_STMT_SEND_LONG_DATA, COM_STMT_CLOSE,
  COM_STMT_RESET, COM_SET_OPTION, COM_STMT_FETCH, COM_DAEMON,
  /* don't forget to update const char *command_name[] in sql_parse.cc */

  /* Must be last */
  COM_END
};


/*
  Length of random string sent by server on handshake; this is also length of
  obfuscated password, recieved from client
*/
#define SCRAMBLE_LENGTH 20
#define SCRAMBLE_LENGTH_323 8
/* length of password stored in the db: new passwords are preceeded with '*' */
#define SCRAMBLED_PASSWORD_CHAR_LENGTH (SCRAMBLE_LENGTH*2+1)
#define SCRAMBLED_PASSWORD_CHAR_LENGTH_323 (SCRAMBLE_LENGTH_323*2)


#define NOT_NULL_FLAG	1		/* Field can't be NULL */
#define PRI_KEY_FLAG	2		/* Field is part of a primary key */
#define UNIQUE_KEY_FLAG 4		/* Field is part of a unique key */
#define MULTIPLE_KEY_FLAG 8		/* Field is part of a key */
#define BLOB_FLAG	16		/* Field is a blob */
#define UNSIGNED_FLAG	32		/* Field is unsigned */
#define ZEROFILL_FLAG	64		/* Field is zerofill */
#define BINARY_FLAG	128		/* Field is binary   */

/* The following are only sent to new clients */
#define ENUM_FLAG	256		/* field is an enum */
#define AUTO_INCREMENT_FLAG 512		/* field is a autoincrement field */
#define TIMESTAMP_FLAG	1024		/* Field is a timestamp */
#define SET_FLAG	2048		/* field is a set */
#define NO_DEFAULT_VALUE_FLAG 4096	/* Field doesn't have default value */
#define ON_UPDATE_NOW_FLAG 8192         /* Field is set to NOW on UPDATE */
#define NUM_FLAG	32768		/* Field is num (for clients) */
#define PART_KEY_FLAG	16384		/* Intern; Part of some key */
#define GROUP_FLAG	32768		/* Intern: Group field */
#define UNIQUE_FLAG	65536		/* Intern: Used by sql_yacc */
#define BINCMP_FLAG	131072		/* Intern: Used by sql_yacc */
#define GET_FIXED_FIELDS_FLAG (1 << 18) /* Used to get fields in item tree */
#define FIELD_IN_PART_FUNC_FLAG (1 << 19)/* Field part of partition func */
#define FIELD_IN_ADD_INDEX (1<< 20)	/* Intern: Field used in ADD INDEX */
#define FIELD_IS_RENAMED (1<< 21)       /* Intern: Field is being renamed */

#define REFRESH_GRANT		1	/* Refresh grant tables */
#define REFRESH_LOG		2	/* Start on new log file */
#define REFRESH_TABLES		4	/* close all tables */
#define REFRESH_HOSTS		8	/* Flush host cache */
#define REFRESH_STATUS		16	/* Flush status variables */
#define REFRESH_THREADS		32	/* Flush thread cache */
#define REFRESH_SLAVE           64      /* Reset master info and restart slave
					   thread */
#define REFRESH_MASTER          128     /* Remove all bin logs in the index
					   and truncate the index */

/* The following can't be set with mysql_refresh() */
#define REFRESH_READ_LOCK	16384	/* Lock tables for read */
#define REFRESH_FAST		32768	/* Intern flag */

/* RESET (remove all queries) from query cache */
#define REFRESH_QUERY_CACHE	65536
#define REFRESH_QUERY_CACHE_FREE 0x20000L /* pack query cache */
#define REFRESH_DES_KEY_FILE	0x40000L
#define REFRESH_USER_RESOURCES	0x80000L

#define CLIENT_LONG_PASSWORD	1	/* new more secure passwords */
#define CLIENT_FOUND_ROWS	2	/* Found instead of affected rows */
#define CLIENT_LONG_FLAG	4	/* Get all column flags */
#define CLIENT_CONNECT_WITH_DB	8	/* One can specify db on connect */
#define CLIENT_NO_SCHEMA	16	/* Don't allow database.table.column */
#define CLIENT_COMPRESS		32	/* Can use compression protocol */
#define CLIENT_ODBC		64	/* Odbc client */
#define CLIENT_LOCAL_FILES	128	/* Can use LOAD DATA LOCAL */
#define CLIENT_IGNORE_SPACE	256	/* Ignore spaces before '(' */
#define CLIENT_PROTOCOL_41	512	/* New 4.1 protocol */
#define CLIENT_INTERACTIVE	1024	/* This is an interactive client */
#define CLIENT_SSL              2048	/* Switch to SSL after handshake */
#define CLIENT_IGNORE_SIGPIPE   4096    /* IGNORE sigpipes */
#define CLIENT_TRANSACTIONS	8192	/* Client knows about transactions */
#define CLIENT_RESERVED         16384   /* Old flag for 4.1 protocol  */
#define CLIENT_SECURE_CONNECTION 32768  /* New 4.1 authentication */
#define CLIENT_MULTI_STATEMENTS (1UL << 16) /* Enable/disable multi-stmt support */
#define CLIENT_MULTI_RESULTS    (1UL << 17) /* Enable/disable multi-results */

#define CLIENT_SSL_VERIFY_SERVER_CERT (1UL << 30)
#define CLIENT_REMEMBER_OPTIONS (1UL << 31)

/* Gather all possible capabilites (flags) supported by the server */
#define CLIENT_ALL_FLAGS  (CLIENT_LONG_PASSWORD | \
                           CLIENT_FOUND_ROWS | \
                           CLIENT_LONG_FLAG | \
                           CLIENT_CONNECT_WITH_DB | \
                           CLIENT_NO_SCHEMA | \
                           CLIENT_COMPRESS | \
                           CLIENT_ODBC | \
                           CLIENT_LOCAL_FILES | \
                           CLIENT_IGNORE_SPACE | \
                           CLIENT_PROTOCOL_41 | \
                           CLIENT_INTERACTIVE | \
                           CLIENT_SSL | \
                           CLIENT_IGNORE_SIGPIPE | \
                           CLIENT_TRANSACTIONS | \
                           CLIENT_RESERVED | \
                           CLIENT_SECURE_CONNECTION | \
                           CLIENT_MULTI_STATEMENTS | \
                           CLIENT_MULTI_RESULTS | \
                           CLIENT_SSL_VERIFY_SERVER_CERT | \
                           CLIENT_REMEMBER_OPTIONS)

/*
  Switch off the flags that are optional and depending on build flags
  If any of the optional flags is supported by the build it will be switched
  on before sending to the client during the connection handshake.
*/
#define CLIENT_BASIC_FLAGS (((CLIENT_ALL_FLAGS & ~CLIENT_SSL) \
                                               & ~CLIENT_COMPRESS) \
                                               & ~CLIENT_SSL_VERIFY_SERVER_CERT)

#define SERVER_STATUS_IN_TRANS     1	/* Transaction has started */
#define SERVER_STATUS_AUTOCOMMIT   2	/* Server in auto_commit mode */
#define SERVER_MORE_RESULTS_EXISTS 8    /* Multi query - next query exists */
#define SERVER_QUERY_NO_GOOD_INDEX_USED 16
#define SERVER_QUERY_NO_INDEX_USED      32
/**
  The server was able to fulfill the clients request and opened a
  read-only non-scrollable cursor for a query. This flag comes
  in reply to COM_STMT_EXECUTE and COM_STMT_FETCH commands.
*/
#define SERVER_STATUS_CURSOR_EXISTS 64
/**
  This flag is sent when a read-only cursor is exhausted, in reply to
  COM_STMT_FETCH command.
*/
#define SERVER_STATUS_LAST_ROW_SENT 128
#define SERVER_STATUS_DB_DROPPED        256 /* A database was dropped */
#define SERVER_STATUS_NO_BACKSLASH_ESCAPES 512
/**
  Sent to the client if after a prepared statement reprepare
  we discovered that the new statement returns a different 
  number of result set columns.
*/
#define SERVER_STATUS_METADATA_CHANGED 1024

/**
  Server status flags that must be cleared when starting
  execution of a new SQL statement.
  Flags from this set are only added to the
  current server status by the execution engine, but 
  never removed -- the execution engine expects them 
  to disappear automagically by the next command.
*/
#define SERVER_STATUS_CLEAR_SET (SERVER_QUERY_NO_GOOD_INDEX_USED| \
                                 SERVER_QUERY_NO_INDEX_USED|\
                                 SERVER_MORE_RESULTS_EXISTS|\
                                 SERVER_STATUS_METADATA_CHANGED)

#define MYSQL_ERRMSG_SIZE	512
#define NET_READ_TIMEOUT	30		/* Timeout on read */
#define NET_WRITE_TIMEOUT	60		/* Timeout on write */
#define NET_WAIT_TIMEOUT	8*60*60		/* Wait for new query */

#define ONLY_KILL_QUERY         1


struct st_vio;					/* Only C */
typedef struct st_vio Vio;

#define MAX_TINYINT_WIDTH       3       /* Max width for a TINY w.o. sign */
#define MAX_SMALLINT_WIDTH      5       /* Max width for a SHORT w.o. sign */
#define MAX_MEDIUMINT_WIDTH     8       /* Max width for a INT24 w.o. sign */
#define MAX_INT_WIDTH           10      /* Max width for a LONG w.o. sign */
#define MAX_BIGINT_WIDTH        20      /* Max width for a LONGLONG */
#define MAX_CHAR_WIDTH		255	/* Max length for a CHAR colum */
#define MAX_BLOB_WIDTH		16777216	/* Default width for blob */

typedef struct st_net {
#if !defined(CHECK_EMBEDDED_DIFFERENCES) || !defined(EMBEDDED_LIBRARY)
  Vio *vio;
  unsigned char *buff,*buff_end,*write_pos,*read_pos;
  my_socket fd;					/* For Perl DBI/dbd */
  /*
    The following variable is set if we are doing several queries in one
    command ( as in LOAD TABLE ... FROM MASTER ),
    and do not want to confuse the client with OK at the wrong time
  */
  unsigned long remain_in_buf,length, buf_length, where_b;
  unsigned long max_packet,max_packet_size;
  unsigned int pkt_nr,compress_pkt_nr;
  unsigned int write_timeout, read_timeout, retry_count;
  int fcntl;
  unsigned int *return_status;
  unsigned char reading_or_writing;
  char save_char;
  my_bool unused0; /* Please remove with the next incompatible ABI change. */
  my_bool unused; /* Please remove with the next incompatible ABI change */
  my_bool compress;
  my_bool unused1; /* Please remove with the next incompatible ABI change. */
  /*
    Pointer to query object in query cache, do not equal NULL (0) for
    queries in cache that have not stored its results yet
  */
#endif
  /*
    'query_cache_query' should be accessed only via query cache
    functions and methods to maintain proper locking.
  */
  unsigned char *query_cache_query;
  unsigned int last_errno;
  unsigned char error; 
  my_bool unused2; /* Please remove with the next incompatible ABI change. */
  my_bool return_errno;
  /** Client library error message buffer. Actually belongs to struct MYSQL. */
  char last_error[MYSQL_ERRMSG_SIZE];
  /** Client library sqlstate buffer. Set along with the error message. */
  char sqlstate[SQLSTATE_LENGTH+1];
  void *extension;
#if defined(MYSQL_SERVER) && !defined(EMBEDDED_LIBRARY)
  /*
    Controls whether a big packet should be skipped.

    Initially set to FALSE by default. Unauthenticated sessions must have
    this set to FALSE so that the server can't be tricked to read packets
    indefinitely.
  */
  my_bool skip_big_packet;
#endif
} NET;


#define packet_error (~(unsigned long) 0)

enum enum_field_types { MYSQL_TYPE_DECIMAL, MYSQL_TYPE_TINY,
			MYSQL_TYPE_SHORT,  MYSQL_TYPE_LONG,
			MYSQL_TYPE_FLOAT,  MYSQL_TYPE_DOUBLE,
			MYSQL_TYPE_NULL,   MYSQL_TYPE_TIMESTAMP,
			MYSQL_TYPE_LONGLONG,MYSQL_TYPE_INT24,
			MYSQL_TYPE_DATE,   MYSQL_TYPE_TIME,
			MYSQL_TYPE_DATETIME, MYSQL_TYPE_YEAR,
			MYSQL_TYPE_NEWDATE, MYSQL_TYPE_VARCHAR,
			MYSQL_TYPE_BIT,
                        MYSQL_TYPE_NEWDECIMAL=246,
			MYSQL_TYPE_ENUM=247,
			MYSQL_TYPE_SET=248,
			MYSQL_TYPE_TINY_BLOB=249,
			MYSQL_TYPE_MEDIUM_BLOB=250,
			MYSQL_TYPE_LONG_BLOB=251,
			MYSQL_TYPE_BLOB=252,
			MYSQL_TYPE_VAR_STRING=253,
			MYSQL_TYPE_STRING=254,
			MYSQL_TYPE_GEOMETRY=255

};

/* For backward compatibility */
#define CLIENT_MULTI_QUERIES    CLIENT_MULTI_STATEMENTS    
#define FIELD_TYPE_DECIMAL     MYSQL_TYPE_DECIMAL
#define FIELD_TYPE_NEWDECIMAL  MYSQL_TYPE_NEWDECIMAL
#define FIELD_TYPE_TINY        MYSQL_TYPE_TINY
#define FIELD_TYPE_SHORT       MYSQL_TYPE_SHORT
#define FIELD_TYPE_LONG        MYSQL_TYPE_LONG
#define FIELD_TYPE_FLOAT       MYSQL_TYPE_FLOAT
#define FIELD_TYPE_DOUBLE      MYSQL_TYPE_DOUBLE
#define FIELD_TYPE_NULL        MYSQL_TYPE_NULL
#define FIELD_TYPE_TIMESTAMP   MYSQL_TYPE_TIMESTAMP
#define FIELD_TYPE_LONGLONG    MYSQL_TYPE_LONGLONG
#define FIELD_TYPE_INT24       MYSQL_TYPE_INT24
#define FIELD_TYPE_DATE        MYSQL_TYPE_DATE
#define FIELD_TYPE_TIME        MYSQL_TYPE_TIME
#define FIELD_TYPE_DATETIME    MYSQL_TYPE_DATETIME
#define FIELD_TYPE_YEAR        MYSQL_TYPE_YEAR
#define FIELD_TYPE_NEWDATE     MYSQL_TYPE_NEWDATE
#define FIELD_TYPE_ENUM        MYSQL_TYPE_ENUM
#define FIELD_TYPE_SET         MYSQL_TYPE_SET
#define FIELD_TYPE_TINY_BLOB   MYSQL_TYPE_TINY_BLOB
#define FIELD_TYPE_MEDIUM_BLOB MYSQL_TYPE_MEDIUM_BLOB
#define FIELD_TYPE_LONG_BLOB   MYSQL_TYPE_LONG_BLOB
#define FIELD_TYPE_BLOB        MYSQL_TYPE_BLOB
#define FIELD_TYPE_VAR_STRING  MYSQL_TYPE_VAR_STRING
#define FIELD_TYPE_STRING      MYSQL_TYPE_STRING
#define FIELD_TYPE_CHAR        MYSQL_TYPE_TINY
#define FIELD_TYPE_INTERVAL    MYSQL_TYPE_ENUM
#define FIELD_TYPE_GEOMETRY    MYSQL_TYPE_GEOMETRY
#define FIELD_TYPE_BIT         MYSQL_TYPE_BIT


/* Shutdown/kill enums and constants */ 

/* Bits for THD::killable. */
#define MYSQL_SHUTDOWN_KILLABLE_CONNECT    (unsigned char)(1 << 0)
#define MYSQL_SHUTDOWN_KILLABLE_TRANS      (unsigned char)(1 << 1)
#define MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE (unsigned char)(1 << 2)
#define MYSQL_SHUTDOWN_KILLABLE_UPDATE     (unsigned char)(1 << 3)

enum mysql_enum_shutdown_level {
  /*
    We want levels to be in growing order of hardness (because we use number
    comparisons). Note that DEFAULT does not respect the growing property, but
    it's ok.
  */
  SHUTDOWN_DEFAULT = 0,
  /* wait for existing connections to finish */
  SHUTDOWN_WAIT_CONNECTIONS= MYSQL_SHUTDOWN_KILLABLE_CONNECT,
  /* wait for existing trans to finish */
  SHUTDOWN_WAIT_TRANSACTIONS= MYSQL_SHUTDOWN_KILLABLE_TRANS,
  /* wait for existing updates to finish (=> no partial MyISAM update) */
  SHUTDOWN_WAIT_UPDATES= MYSQL_SHUTDOWN_KILLABLE_UPDATE,
  /* flush InnoDB buffers and other storage engines' buffers*/
  SHUTDOWN_WAIT_ALL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1),
  /* don't flush InnoDB buffers, flush other storage engines' buffers*/
  SHUTDOWN_WAIT_CRITICAL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1) + 1,
  /* Now the 2 levels of the KILL command */
#if MYSQL_VERSION_ID >= 50000
  KILL_QUERY= 254,
#endif
  KILL_CONNECTION= 255
};


enum enum_cursor_type
{
  CURSOR_TYPE_NO_CURSOR= 0,
  CURSOR_TYPE_READ_ONLY= 1,
  CURSOR_TYPE_FOR_UPDATE= 2,
  CURSOR_TYPE_SCROLLABLE= 4
};


/* options for mysql_set_option */
enum enum_mysql_set_option
{
  MYSQL_OPTION_MULTI_STATEMENTS_ON,
  MYSQL_OPTION_MULTI_STATEMENTS_OFF
};

#define net_new_transaction(net) ((net)->pkt_nr=0)

#ifdef __cplusplus
extern "C" {
#endif

my_bool	my_net_init(NET *net, Vio* vio);
void	my_net_local_init(NET *net);
void	net_end(NET *net);
  void	net_clear(NET *net, my_bool clear_buffer);
my_bool net_realloc(NET *net, size_t length);
my_bool	net_flush(NET *net);
my_bool	my_net_write(NET *net,const unsigned char *packet, size_t len);
my_bool	net_write_command(NET *net,unsigned char command,
			  const unsigned char *header, size_t head_len,
			  const unsigned char *packet, size_t len);
int	net_real_write(NET *net,const unsigned char *packet, size_t len);
unsigned long my_net_read(NET *net);

#ifdef _global_h
void my_net_set_write_timeout(NET *net, uint timeout);
void my_net_set_read_timeout(NET *net, uint timeout);
#endif

/*
  The following function is not meant for normal usage
  Currently it's used internally by manager.c
*/
struct sockaddr;
int my_connect(my_socket s, const struct sockaddr *name, unsigned int namelen,
	       unsigned int timeout);

struct rand_struct {
  unsigned long seed1,seed2,max_value;
  double max_value_dbl;
};

#ifdef __cplusplus
}
#endif

  /* The following is for user defined functions */

enum Item_result {STRING_RESULT=0, REAL_RESULT, INT_RESULT, ROW_RESULT,
                  DECIMAL_RESULT};

typedef struct st_udf_args
{
  unsigned int arg_count;		/* Number of arguments */
  enum Item_result *arg_type;		/* Pointer to item_results */
  char **args;				/* Pointer to argument */
  unsigned long *lengths;		/* Length of string arguments */
  char *maybe_null;			/* Set to 1 for all maybe_null args */
  char **attributes;                    /* Pointer to attribute name */
  unsigned long *attribute_lengths;     /* Length of attribute arguments */
  void *extension;
} UDF_ARGS;

  /* This holds information about the result */

typedef struct st_udf_init
{
  my_bool maybe_null;          /* 1 if function can return NULL */
  unsigned int decimals;       /* for real functions */
  unsigned long max_length;    /* For string functions */
  char *ptr;                   /* free pointer for function data */
  my_bool const_item;          /* 1 if function always returns the same value */
  void *extension;
} UDF_INIT;
/* 
  TODO: add a notion for determinism of the UDF. 
  See Item_udf_func::update_used_tables ()
*/

  /* Constants when using compression */
#define NET_HEADER_SIZE 4		/* standard header size */
#define COMP_HEADER_SIZE 3		/* compression header extra size */

  /* Prototypes to password functions */

#ifdef __cplusplus
extern "C" {
#endif

/*
  These functions are used for authentication by client and server and
  implemented in sql/password.c
*/

void randominit(struct rand_struct *, unsigned long seed1,
                unsigned long seed2);
double my_rnd(struct rand_struct *);
void create_random_string(char *to, unsigned int length, struct rand_struct *rand_st);

void hash_password(unsigned long *to, const char *password, unsigned int password_len);
void make_scrambled_password_323(char *to, const char *password);
void scramble_323(char *to, const char *message, const char *password);
my_bool check_scramble_323(const char *, const char *message,
                           unsigned long *salt);
void get_salt_from_password_323(unsigned long *res, const char *password);
void make_password_from_salt_323(char *to, const unsigned long *salt);

void make_scrambled_password(char *to, const char *password);
void scramble(char *to, const char *message, const char *password);
my_bool check_scramble(const char *reply, const char *message,
                       const unsigned char *hash_stage2);
void get_salt_from_password(unsigned char *res, const char *password);
void make_password_from_salt(char *to, const unsigned char *hash_stage2);
char *octet2hex(char *to, const char *str, unsigned int len);

/* end of password.c */

char *get_tty_password(const char *opt_message);
const char *mysql_errno_to_sqlstate(unsigned int mysql_errno);

/* Some other useful functions */

my_bool my_thread_init(void);
void my_thread_end(void);

#ifdef _global_h
ulong STDCALL net_field_length(uchar **packet);
my_ulonglong net_field_length_ll(uchar **packet);
uchar *net_store_length(uchar *pkg, ulonglong length);
#endif

#ifdef __cplusplus
}
#endif

#define NULL_LENGTH ((unsigned long) ~0) /* For net_store_length */
#define MYSQL_STMT_HEADER       4
#define MYSQL_LONG_DATA_HEADER  6

#endif

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