/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB      This library 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 of the License, or (at your option) any later version.      This library 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 library; 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 NAME_LEN	64		/* Field/table name length */#define HOSTNAME_LENGTH 60#define USERNAME_LENGTH 16#define LOCAL_HOST	"localhost"#define LOCAL_HOST_NAMEDPIPE "."#if defined(__EMX__) || defined(__OS2__)#undef MYSQL_UNIX_ADDR#define MYSQL_OS2_ADDR "\\socket\\MySQL"#define MYSQL_UNIX_ADDR MYSQL_OS2_ADDR#endif#if defined(__WIN__) && !defined( _CUSTOMCONFIG_)#define MYSQL_NAMEDPIPE "MySQL"#define MYSQL_SERVICENAME "MySql"#endif /* __WIN__ */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};#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/* 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 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 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 status variables */#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 */#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_CHANGE_USER	512	/* Support the mysql_change_user() */#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	8196	/* Client knows about transactions */#define SERVER_STATUS_IN_TRANS  1	/* Transaction has started */#define SERVER_STATUS_AUTOCOMMIT 2	/* Server in auto_commit mode */#define MYSQL_ERRMSG_SIZE	200#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 */#ifndef Vio_defined#define Vio_defined#ifdef HAVE_VIOclass Vio;					/* Fill Vio class in C++ */#elsestruct st_vio;					/* Only C */typedef struct st_vio Vio;#endif#endiftypedef struct st_net {  Vio* vio;  my_socket fd;					/* For Perl DBI/dbd */  int fcntl;  unsigned char *buff,*buff_end,*write_pos,*read_pos;  char last_error[MYSQL_ERRMSG_SIZE];  unsigned int last_errno,max_packet,timeout,pkt_nr;  unsigned char error;  my_bool return_errno,compress;  my_bool no_send_ok; /* needed 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 int *return_status;  unsigned char reading_or_writing;  char save_char;} NET;#define packet_error ((unsigned int) -1)enum enum_field_types { FIELD_TYPE_DECIMAL, FIELD_TYPE_TINY,			FIELD_TYPE_SHORT,  FIELD_TYPE_LONG,			FIELD_TYPE_FLOAT,  FIELD_TYPE_DOUBLE,			FIELD_TYPE_NULL,   FIELD_TYPE_TIMESTAMP,			FIELD_TYPE_LONGLONG,FIELD_TYPE_INT24,			FIELD_TYPE_DATE,   FIELD_TYPE_TIME,			FIELD_TYPE_DATETIME, FIELD_TYPE_YEAR,			FIELD_TYPE_NEWDATE,			FIELD_TYPE_ENUM=247,			FIELD_TYPE_SET=248,			FIELD_TYPE_TINY_BLOB=249,			FIELD_TYPE_MEDIUM_BLOB=250,			FIELD_TYPE_LONG_BLOB=251,			FIELD_TYPE_BLOB=252,			FIELD_TYPE_VAR_STRING=253,			FIELD_TYPE_STRING=254};#define FIELD_TYPE_CHAR FIELD_TYPE_TINY		/* For compability */#define FIELD_TYPE_INTERVAL FIELD_TYPE_ENUM	/* For compability */extern unsigned long max_allowed_packet;extern unsigned long net_buffer_length;#define net_new_transaction(net) ((net)->pkt_nr=0)int	my_net_init(NET *net, Vio* vio);void	net_end(NET *net);void	net_clear(NET *net);int	net_flush(NET *net);int	my_net_write(NET *net,const char *packet,unsigned long len);int	net_write_command(NET *net,unsigned char command,const char *packet,			  unsigned long len);int	net_real_write(NET *net,const char *packet,unsigned long len);unsigned int	my_net_read(NET *net);struct rand_struct {  unsigned long seed1,seed2,max_value;  double max_value_dbl;};  /* The following is for user defined functions */enum Item_result {STRING_RESULT,REAL_RESULT,INT_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 */} 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 int max_length;		/* For string functions */  char	  *ptr;				/* free pointer for function data */  my_bool const_item;			/* 0 if result is independent of arguments */} UDF_INIT;  /* 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 __cplusplusextern "C" {#endif  void randominit(struct rand_struct *,unsigned long seed1,		unsigned long seed2);double rnd(struct rand_struct *);void make_scrambled_password(char *to,const char *password);void get_salt_from_password(unsigned long *res,const char *password);void make_password_from_salt(char *to, unsigned long *hash_res);char *scramble(char *to,const char *message,const char *password,	       my_bool old_ver);my_bool check_scramble(const char *, const char *message,		       unsigned long *salt,my_bool old_ver);char *get_tty_password(char *opt_message);void hash_password(unsigned long *result, const char *password);#ifdef __cplusplus}#endif/* Some other useful functions */void my_init(void);void load_defaults(const char *conf_file, const char **groups,		   int *argc, char ***argv);#define NULL_LENGTH ((unsigned long) ~0) /* For net_store_length */#ifdef __WIN__#define socket_errno WSAGetLastError()#else#define socket_errno errno#endif#endif