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/* 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 NAME_LEN 64 /* Field/table name length */
#define HOSTNAME_LENGTH 60
#define USERNAME_LENGTH 16
#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,
/* 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 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 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)
#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
#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 8192 /* 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 */
unsigned long max_packet,max_packet_size;
unsigned int pkt_nr,compress_pkt_nr;
unsigned int write_timeout, read_timeout, retry_count;
int fcntl;
my_bool compress;
/*
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 int *return_status;
unsigned char reading_or_writing;
char save_char;
my_bool no_send_ok; /* For SPs and other things that do multiple stmts */
my_bool no_send_eof; /* For SPs' first version read-only cursors */
/*
Set if OK packet is already sent, and we do not need to send error
messages
*/
my_bool no_send_error;
/*
Pointer to query object in query cache, do not equal NULL (0) for
queries in cache that have not stored its results yet
*/
#endif
char last_error[MYSQL_ERRMSG_SIZE], sqlstate[SQLSTATE_LENGTH+1];
unsigned int last_errno;
unsigned char error;
/*
'query_cache_query' should be accessed only via query cache
functions and methods to maintain proper locking.
*/
gptr query_cache_query;
my_bool report_error; /* We should report error (we have unreported error) */
my_bool return_errno;
#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 net_realloc(NET *net, unsigned long length);
my_bool net_flush(NET *net);
my_bool my_net_write(NET *net,const char *packet,unsigned long len);
my_bool net_write_command(NET *net,unsigned char command,
const char *header, unsigned long head_len,
const char *packet, unsigned long len);
int net_real_write(NET *net,const char *packet,unsigned long 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 */
} 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 */
} 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(char *opt_message);
const char *mysql_errno_to_sqlstate(unsigned int mysql_errno);
/* Some other useful functions */
my_bool my_init(void);
extern int modify_defaults_file(const char *file_location, const char *option,
const char *option_value,
const char *section_name, int remove_option);
int load_defaults(const char *conf_file, const char **groups,
int *argc, char ***argv);
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);
char *net_store_length(char *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