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2a0d2fef51
cause ROLLBACK of statement", part 1. Review fixes.
Do not send OK/EOF packets to the client until we reached the end of
the current statement.
This is a consolidation, to keep the functionality that is shared by all
SQL statements in one place in the server.
Currently this functionality includes:
- close_thread_tables()
- log_slow_statement().
After this patch and the subsequent patch for Bug#12713, it shall also include:
- ha_autocommit_or_rollback()
- net_end_statement()
- query_cache_end_of_result().
In future it may also include:
- mysql_reset_thd_for_next_command().
include/mysql_com.h:
Rename now unused members of NET: no_send_ok, no_send_error, report_error.
These were server-specific variables related to the client/server
protocol. They have been made obsolete by this patch.
Previously the same members of NET were used to store the error message
both on the client and on the server.
The error message was stored in net.last_error (client: mysql->net.last_error,
server: thd->net.last_error).
The error code was stored in net.last_errno (client: mysql->net.last_errno,
server: thd->net.last_errno).
The server error code and message are now stored elsewhere
(in the Diagnostics_area), thus NET members are no longer used by the
server.
Rename last_error to client_last_error, last_errno to client_last_errno
to avoid potential bugs introduced by merges.
include/mysql_h.ic:
Update the ABI file to reflect a rename.
Renames do not break the binary compatibility.
libmysql/libmysql.c:
Rename last_error to client_last_error, last_errno to client_last_errno.
This is necessary to ensure no unnoticed bugs introduced by merged
changesets.
Remove net.report_error, net.no_send_ok, net.no_send_error.
libmysql/manager.c:
Rename net.last_errno to net.client_last_errno.
libmysqld/lib_sql.cc:
Rename net.last_errno to net.client_last_errno.
Update the embedded implementation of the client-server protocol to
reflect the refactoring of protocol.cc.
libmysqld/libmysqld.c:
Rename net.last_errno to net.client_last_errno.
mysql-test/r/events.result:
Update to reflect the change in mysql_rm_db(). Now we drop stored
routines and events for a given database name only if there
is a directory for this database name. ha_drop_database() and
query_cache_invalidate() are called likewise.
Previously we would attempt to drop routines/events even if database
directory was not found (it worked, since routines and events are stored
in tables). This fixes Bug 29958 "Weird message on DROP DATABASE if mysql.proc
does not exist".
The change was done because the previous code used to call send_ok()
twice, which led to an assertion failure when asserts against it were
added by this patch.
mysql-test/r/grant.result:
Fix the patch for Bug 16470, now FLUSH PRIVILEGES produces an error
if mysql.procs_priv is missing.
This fixes the assert that send_ok() must not called after send_error()
(the original patch for Bug 16470 was prone to this).
mysql-test/suite/rpl/r/rpl_row_tabledefs_2myisam.result:
Produce a more detailed error message.
mysql-test/suite/rpl/r/rpl_row_tabledefs_3innodb.result:
Produce a more detailed error message.
mysql-test/t/grant.test:
Update the test, now FLUSH PRIVILEGES returns an error if mysql.procs_priv
is missing.
server-tools/instance-manager/mysql_connection.cc:
Rename net.last_errno to net.client_last_errno.
sql/ha_ndbcluster_binlog.cc:
Add asserts.
Use getters to access statement status information.
Add a comment why run_query() is broken. Reset the diagnostics area
in the end of run_query() to fulfill the invariant that the diagnostics_area
is never assigned twice per statement (see the comment in the code
when this can happen). We still do not clear thd->is_fatal_error and
thd->is_slave_error, which may lead to bugs, I consider the whole affair
as something to be dealt with separately.
sql/ha_partition.cc:
fatal_error() doesn't set an error by itself. Perhaps we should
remove this method altogether and instead add a flag to my_error
to set thd->is_fatal_error property.
Meanwhile, this change is a part of inspection made to the entire source
code with the goal to ensure that fatal_error()
is always accompanied by my_error().
sql/item_func.cc:
There is no net.last_error anymore. Remove the obsolete assignment.
sql/log_event.cc:
Use getters to access statement error status information.
sql/log_event_old.cc:
Use getters to access statement error status information.
sql/mysqld.cc:
Previously, if a continue handler for an error was found, my_message_sql()
would not set an error in THD. Since the current statement
must be aborted in any case, find_handler() had a hack to assign
thd->net.report_error to 1.
Remove this hack. Set an error in my_message_sql() even if the continue
handler is found. The error will be cleared anyway when the handler
is executed. This is one action among many in this patch to ensure the
invariant that whenever thd->is_error() is TRUE, we have a message in
thd->main_da.message().
sql/net_serv.cc:
Use a full-blown my_error() in net_serv.cc to report an error,
instead of just setting net->last_errno. This ensures the invariant that
whenever thd->is_error() returns TRUE, we have a message in
thd->main_da.message().
Remove initialization of removed NET members.
sql/opt_range.cc:
Use my_error() instead of just raising thd->net.report_error.
This ensures the invariant that whenever thd->is_error() returns TRUE,
there is a message in thd->main_da.message().
sql/opt_sum.cc:
Move invocation of fatal_error() right next to the place where
we set the error message. That makes it easier to track that whenever
fatal_error() is called, there is a message in THD.
sql/protocol.cc:
Rename send_ok() and send_eof() to net_send_ok() and net_send_eof()
respectively. These functions write directly to the network and are not
for use anywhere outside the client/server protocol code.
Remove the code that was responsible for cases when either there is
no error code, or no error message, or both.
Instead the calling code ensures that they are always present. Asserts
are added to enforce the invariant.
Instead of a direct access to thd->server_status and thd->total_warn_count
use function parameters, since these from now on don't always come directly
from THD.
Introduce net_end_statement(), the single-entry-point replacement API for
send_ok(), send_eof() and net_send_error().
Implement Protocol::end_partial_result_set to use in select_send::abort()
when there is a continue handler.
sql/protocol.h:
Update declarations.
sql/repl_failsafe.cc:
Use getters to access statement status information in THD.
Rename net.last_error to net.client_last_error.
sql/rpl_record.cc:
Set an error message in prepare_record() if there is no default
value for the field -- later we do print this message to the client.
sql/rpl_rli.cc:
Use getters to access statement status information in THD.
sql/slave.cc:
In create_table_from_dump() (a common function that is used in
LOAD MASTER TABLE SQL statement and COM_LOAD_MASTER_DATA), instead of hacks
with no_send_ok, clear the diagnostics area when mysql_rm_table() succeeded.
Update has_temporary_error() to work correctly when no error is set.
This is the case when Incident_log_event is executed: it always returns
an error but does not set an error message.
Use getters to access error status information.
sql/sp_head.cc:
Instead of hacks with no_send_error, work through the diagnostics area
interface to suppress sending of OK/ERROR packets to the client.
Move query_cache_end_of_result before log_slow_statement(), similarly
to how it's done in dispatch_command().
sql/sp_rcontext.cc:
Remove hacks with assignment of thd->net.report_error, they are not
necessary any more (see the changes in mysqld.cc).
sql/sql_acl.cc:
Use getters to access error status information in THD.
sql/sql_base.cc:
Access thd->main_da.sql_errno() only if there is an error. This fixes
a bug when auto-discovery, that was effectively disabled under pre-locking.
sql/sql_binlog.cc:
Remove hacks with no_send_ok/no_send_error, they are not necessary
anymore: the caller is responsible for network communication.
sql/sql_cache.cc:
Disable sending of OK/ERROR/EOF packet in the end of dispatch_command
if the response has been served from the query cache. This raises the
question whether we should store EOF packet in the query cache at all,
or generate it anew for each statement (we should generate it anew), but
this is to be addressed separately.
sql/sql_class.cc:
Implement class Diagnostics_area. Please see comments in sql_class.h
for details.
Fix a subtle coding mistake in select_send::send_data: when on slave,
an error in Item::send() was ignored.
The problem became visible due to asserts that the diagnostics area is
never double assigned.
Remove initialization of removed NET members.
In select_send::abort() do not call select_send::send_eof(). This is
not inheritance-safe. Even if a stored procedure continue handler is
found, the current statement is aborted, not succeeded.
Instead introduce a Protocol API to send the required response,
Protocol::end_partial_result_set().
This simplifies implementation of select_send::send_eof(). No need
to add more asserts that there is no error, there is an assert inside
Diagnostics_area::set_ok_status() already.
Leave no trace of no_send_* in the code.
sql/sql_class.h:
Declare class Diagnostics_area.
Remove the hack with no_send_ok from
Substatement_state.
Provide inline implementations of send_ok/send_eof.
Add commetns.
sql/sql_connect.cc:
Remove hacks with no_send_error.
Since now an error in THD is always set if net->error, it's not necessary
to check both net->error and thd->is_error() in the do_command loop.
Use thd->main_da.message() instead of net->last_errno.
Remove the hack with is_slave_error in sys_init_connect. Since now we do not
reset the diagnostics area in net_send_error (it's reset at the beginning
of the next statement), we can access it safely even after
execute_init_command.
sql/sql_db.cc:
Update the code to satisfy the invariant that the diagnostics area is never
assigned twice.
Incidentally, this fixes Bug 29958 "Weird message on DROP DATABASE if
mysql.proc does not exist".
sql/sql_delete.cc:
Change multi-delete to abort in abort(), as per select_send protocol.
Fixes the merge error with the test for Bug 29136
sql/sql_derived.cc:
Use getters to access error information.
sql/sql_insert.cc:
Use getters to access error information.
sql-common/client.c:
Rename last_error to client_last_error, last_errno to client_last_errno.
sql/sql_parse.cc:
Remove hacks with no_send_error. Deploy net_end_statement().
The story of COM_SHUTDOWN is interesting. Long story short, the server
would become on its death's door, and only no_send_ok/no_send_error assigned
by send_ok()/net_send_error() would hide its babbling from the client.
First of all, COM_QUIT does not require a response. So, the comment saying
"Let's send a response to possible COM_QUIT" is not only groundless
(even mysqladmin shutdown/mysql_shutdown() doesn't send COM_QUIT after
COM_SHUTDOWN), it's plainly incorrect.
Secondly, besides this additional 'OK' packet to respond to a hypothetical
COM_QUIT, there was the following code in dispatch_command():
if (thd->killed)
thd->send_kill_message();
if (thd->is_error()
net_send_error(thd);
This worked out really funny for the thread through which COM_SHUTDOWN
was delivered: we would get COM_SHUTDOWN, say okay, say okay again,
kill everybody, get the kill signal ourselves, and then attempt to say
"Server shutdown in progress" to the client that is very likely long gone.
This all became visible when asserts were added that the Diagnostics_area
is not assigned twice.
Move query_cache_end_of_result() to the end of dispatch_command(), since
net_send_eof() has been moved there. This is safe, query_cache_end_of_result()
is a no-op if there is no started query in the cache.
Consistently use select_send interface to call abort() or send_eof()
depending on the operation result.
Remove thd->fatal_error() from reset_master(), it was a no-op.
in hacks with no_send_error woudl save us
from complete breakage of the client/server protocol.
Consistently use select_send::abort() whenever there is an error,
and select_send::send_eof() in case of success.
The issue became visible due to added asserts.
sql/sql_partition.cc:
Always set an error in THD whenever there is a call to fatal_error().
sql/sql_prepare.cc:
Deploy class Diagnostics_area.
Remove the unnecessary juggling with the protocol in
Select_fetch_protocol_binary::send_eof(). EOF packet format is
protocol-independent.
sql/sql_select.cc:
Call fatal_error() directly in opt_sum_query.
Call my_error() whenever we call thd->fatal_error().
sql/sql_servers.cc:
Use getters to access error information in THD.
sql/sql_show.cc:
Use getters to access error information in THD.
Add comments.
Call my_error() whenever we call fatal_error().
sql/sql_table.cc:
Replace hacks with no_send_ok with the interface of the diagnostics area.
Clear the error if ENOENT error in ha_delete_table().
sql/sql_update.cc:
Introduce multi_update::abort(), which is the proper way to abort a
multi-update. This fixes the merge conflict between this patch and
the patch for Bug 29136.
sql/table.cc:
Use a getter to access error information in THD.
sql/tztime.cc:
Use a getter to access error information in THD.
3160 lines
93 KiB
C
3160 lines
93 KiB
C
/* Copyright (C) 2000-2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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This file is included by both libmysql.c (the MySQL client C API)
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and the mysqld server to connect to another MYSQL server.
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The differences for the two cases are:
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- Things that only works for the client:
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- Trying to automaticly determinate user name if not supplied to
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mysql_real_connect()
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- Support for reading local file with LOAD DATA LOCAL
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- SHARED memory handling
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- Protection against sigpipe
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- Prepared statements
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- Things that only works for the server
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- Alarm handling on connect
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In all other cases, the code should be idential for the client and
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server.
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*/
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#include <my_global.h>
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#include "mysql.h"
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/* Remove client convenience wrappers */
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#undef max_allowed_packet
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#undef net_buffer_length
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#ifdef EMBEDDED_LIBRARY
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#undef MYSQL_SERVER
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#ifndef MYSQL_CLIENT
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#define MYSQL_CLIENT
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#endif
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#define CLI_MYSQL_REAL_CONNECT STDCALL cli_mysql_real_connect
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#undef net_flush
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my_bool net_flush(NET *net);
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#else /*EMBEDDED_LIBRARY*/
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#define CLI_MYSQL_REAL_CONNECT STDCALL mysql_real_connect
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#endif /*EMBEDDED_LIBRARY*/
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#include <my_sys.h>
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#include <mysys_err.h>
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#include <m_string.h>
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#include <m_ctype.h>
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#include "mysql_version.h"
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#include "mysqld_error.h"
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#include "errmsg.h"
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#include <violite.h>
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#if defined(THREAD) && !defined(__WIN__)
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#include <my_pthread.h> /* because of signal() */
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#endif /* defined(THREAD) && !defined(__WIN__) */
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#include <sys/stat.h>
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#include <signal.h>
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#include <time.h>
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#ifdef HAVE_PWD_H
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#include <pwd.h>
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#endif
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#if !defined(MSDOS) && !defined(__WIN__)
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#ifdef HAVE_SELECT_H
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# include <select.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#endif /*!defined(MSDOS) && !defined(__WIN__) */
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#ifdef HAVE_SYS_UN_H
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# include <sys/un.h>
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#endif
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#if defined(MSDOS) || defined(__WIN__)
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#define perror(A)
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#else
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#include <errno.h>
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#define SOCKET_ERROR -1
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#endif
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#ifdef __WIN__
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#define CONNECT_TIMEOUT 20
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#else
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#define CONNECT_TIMEOUT 0
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#endif
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#include "client_settings.h"
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#include <sql_common.h>
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uint mysql_port=0;
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char *mysql_unix_port= 0;
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const char *unknown_sqlstate= "HY000";
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const char *not_error_sqlstate= "00000";
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#ifdef HAVE_SMEM
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char *shared_memory_base_name= 0;
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const char *def_shared_memory_base_name= default_shared_memory_base_name;
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#endif
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static void mysql_close_free_options(MYSQL *mysql);
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static void mysql_close_free(MYSQL *mysql);
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#if !(defined(__WIN__) || defined(__NETWARE__))
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static int wait_for_data(my_socket fd, uint timeout);
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#endif
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CHARSET_INFO *default_client_charset_info = &my_charset_latin1;
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/****************************************************************************
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A modified version of connect(). my_connect() allows you to specify
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a timeout value, in seconds, that we should wait until we
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derermine we can't connect to a particular host. If timeout is 0,
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my_connect() will behave exactly like connect().
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Base version coded by Steve Bernacki, Jr. <steve@navinet.net>
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*****************************************************************************/
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int my_connect(my_socket fd, const struct sockaddr *name, uint namelen,
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uint timeout)
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{
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#if defined(__WIN__) || defined(__NETWARE__)
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return connect(fd, (struct sockaddr*) name, namelen);
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#else
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int flags, res, s_err;
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/*
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If they passed us a timeout of zero, we should behave
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exactly like the normal connect() call does.
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*/
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if (timeout == 0)
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return connect(fd, (struct sockaddr*) name, namelen);
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flags = fcntl(fd, F_GETFL, 0); /* Set socket to not block */
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#ifdef O_NONBLOCK
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fcntl(fd, F_SETFL, flags | O_NONBLOCK); /* and save the flags.. */
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#endif
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res= connect(fd, (struct sockaddr*) name, namelen);
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s_err= errno; /* Save the error... */
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fcntl(fd, F_SETFL, flags);
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if ((res != 0) && (s_err != EINPROGRESS))
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{
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errno= s_err; /* Restore it */
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return(-1);
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}
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if (res == 0) /* Connected quickly! */
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return(0);
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return wait_for_data(fd, timeout);
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#endif
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}
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/*
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Wait up to timeout seconds for a connection to be established.
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We prefer to do this with poll() as there is no limitations with this.
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If not, we will use select()
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*/
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#if !(defined(__WIN__) || defined(__NETWARE__))
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static int wait_for_data(my_socket fd, uint timeout)
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{
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#ifdef HAVE_POLL
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struct pollfd ufds;
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int res;
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ufds.fd= fd;
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ufds.events= POLLIN | POLLPRI;
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if (!(res= poll(&ufds, 1, (int) timeout*1000)))
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{
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errno= EINTR;
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return -1;
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}
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if (res < 0 || !(ufds.revents & (POLLIN | POLLPRI)))
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return -1;
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return 0;
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#else
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SOCKOPT_OPTLEN_TYPE s_err_size = sizeof(uint);
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fd_set sfds;
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struct timeval tv;
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time_t start_time, now_time;
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int res, s_err;
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if (fd >= FD_SETSIZE) /* Check if wrong error */
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return 0; /* Can't use timeout */
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/*
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Our connection is "in progress." We can use the select() call to wait
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up to a specified period of time for the connection to suceed.
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If select() returns 0 (after waiting howevermany seconds), our socket
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never became writable (host is probably unreachable.) Otherwise, if
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select() returns 1, then one of two conditions exist:
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1. An error occured. We use getsockopt() to check for this.
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2. The connection was set up sucessfully: getsockopt() will
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return 0 as an error.
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Thanks goes to Andrew Gierth <andrew@erlenstar.demon.co.uk>
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who posted this method of timing out a connect() in
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comp.unix.programmer on August 15th, 1997.
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*/
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FD_ZERO(&sfds);
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FD_SET(fd, &sfds);
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/*
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select could be interrupted by a signal, and if it is,
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the timeout should be adjusted and the select restarted
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to work around OSes that don't restart select and
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implementations of select that don't adjust tv upon
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failure to reflect the time remaining
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*/
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start_time= my_time(0);
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for (;;)
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{
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tv.tv_sec = (long) timeout;
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tv.tv_usec = 0;
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#if defined(HPUX10) && defined(THREAD)
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if ((res = select(fd+1, NULL, (int*) &sfds, NULL, &tv)) > 0)
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break;
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#else
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if ((res = select(fd+1, NULL, &sfds, NULL, &tv)) > 0)
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break;
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#endif
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if (res == 0) /* timeout */
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return -1;
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now_time= my_time(0);
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timeout-= (uint) (now_time - start_time);
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if (errno != EINTR || (int) timeout <= 0)
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return -1;
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}
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/*
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select() returned something more interesting than zero, let's
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see if we have any errors. If the next two statements pass,
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we've got an open socket!
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*/
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s_err=0;
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if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (char*) &s_err, &s_err_size) != 0)
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return(-1);
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if (s_err)
|
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{ /* getsockopt could succeed */
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errno = s_err;
|
|
return(-1); /* but return an error... */
|
|
}
|
|
return (0); /* ok */
|
|
#endif /* HAVE_POLL */
|
|
}
|
|
#endif /* defined(__WIN__) || defined(__NETWARE__) */
|
|
|
|
/**
|
|
Set the internal error message to mysql handler
|
|
|
|
@param mysql connection handle (client side)
|
|
@param errcode CR_ error code, passed to ER macro to get
|
|
error text
|
|
@parma sqlstate SQL standard sqlstate
|
|
*/
|
|
|
|
void set_mysql_error(MYSQL *mysql, int errcode, const char *sqlstate)
|
|
{
|
|
NET *net;
|
|
DBUG_ENTER("set_mysql_error");
|
|
DBUG_PRINT("enter", ("error :%d '%s'", errcode, ER(errcode)));
|
|
DBUG_ASSERT(mysql != 0);
|
|
|
|
net= &mysql->net;
|
|
net->client_last_errno= errcode;
|
|
strmov(net->client_last_error, ER(errcode));
|
|
strmov(net->sqlstate, sqlstate);
|
|
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
/**
|
|
Clear possible error state of struct NET
|
|
|
|
@param net clear the state of the argument
|
|
*/
|
|
|
|
void net_clear_error(NET *net)
|
|
{
|
|
net->client_last_errno= 0;
|
|
net->client_last_error[0]= '\0';
|
|
strmov(net->sqlstate, not_error_sqlstate);
|
|
}
|
|
|
|
/**
|
|
Set an error message on the client.
|
|
|
|
@param mysql connection handle
|
|
@param errcode CR_* errcode, for client errors
|
|
@param sqlstate SQL standard sql state, unknown_sqlstate for the
|
|
majority of client errors.
|
|
@param format error message template, in sprintf format
|
|
@param ... variable number of arguments
|
|
*/
|
|
|
|
static void set_mysql_extended_error(MYSQL *mysql, int errcode,
|
|
const char *sqlstate,
|
|
const char *format, ...)
|
|
{
|
|
NET *net;
|
|
va_list args;
|
|
DBUG_ENTER("set_mysql_extended_error");
|
|
DBUG_PRINT("enter", ("error :%d '%s'", errcode, format));
|
|
DBUG_ASSERT(mysql != 0);
|
|
|
|
net= &mysql->net;
|
|
net->client_last_errno= errcode;
|
|
va_start(args, format);
|
|
my_vsnprintf(net->client_last_error, sizeof(net->client_last_error)-1,
|
|
format, args);
|
|
va_end(args);
|
|
strmov(net->sqlstate, sqlstate);
|
|
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
Create a named pipe connection
|
|
*/
|
|
|
|
#ifdef __WIN__
|
|
|
|
HANDLE create_named_pipe(MYSQL *mysql, uint connect_timeout, char **arg_host,
|
|
char **arg_unix_socket)
|
|
{
|
|
HANDLE hPipe=INVALID_HANDLE_VALUE;
|
|
char pipe_name[1024];
|
|
DWORD dwMode;
|
|
int i;
|
|
my_bool testing_named_pipes=0;
|
|
char *host= *arg_host, *unix_socket= *arg_unix_socket;
|
|
|
|
if ( ! unix_socket || (unix_socket)[0] == 0x00)
|
|
unix_socket = mysql_unix_port;
|
|
if (!host || !strcmp(host,LOCAL_HOST))
|
|
host=LOCAL_HOST_NAMEDPIPE;
|
|
|
|
|
|
pipe_name[sizeof(pipe_name)-1]= 0; /* Safety if too long string */
|
|
strxnmov(pipe_name, sizeof(pipe_name)-1, "\\\\", host, "\\pipe\\",
|
|
unix_socket, NullS);
|
|
DBUG_PRINT("info",("Server name: '%s'. Named Pipe: %s", host, unix_socket));
|
|
|
|
for (i=0 ; i < 100 ; i++) /* Don't retry forever */
|
|
{
|
|
if ((hPipe = CreateFile(pipe_name,
|
|
GENERIC_READ | GENERIC_WRITE,
|
|
0,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
0,
|
|
NULL )) != INVALID_HANDLE_VALUE)
|
|
break;
|
|
if (GetLastError() != ERROR_PIPE_BUSY)
|
|
{
|
|
set_mysql_extended_error(mysql, CR_NAMEDPIPEOPEN_ERROR,
|
|
unknown_sqlstate, ER(CR_NAMEDPIPEOPEN_ERROR),
|
|
host, unix_socket, (ulong) GetLastError());
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
/* wait for for an other instance */
|
|
if (! WaitNamedPipe(pipe_name, connect_timeout*1000) )
|
|
{
|
|
set_mysql_extended_error(mysql, CR_NAMEDPIPEWAIT_ERROR, unknown_sqlstate,
|
|
ER(CR_NAMEDPIPEWAIT_ERROR),
|
|
host, unix_socket, (ulong) GetLastError());
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
}
|
|
if (hPipe == INVALID_HANDLE_VALUE)
|
|
{
|
|
set_mysql_extended_error(mysql, CR_NAMEDPIPEOPEN_ERROR, unknown_sqlstate,
|
|
ER(CR_NAMEDPIPEOPEN_ERROR), host, unix_socket,
|
|
(ulong) GetLastError());
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
dwMode = PIPE_READMODE_BYTE | PIPE_WAIT;
|
|
if ( !SetNamedPipeHandleState(hPipe, &dwMode, NULL, NULL) )
|
|
{
|
|
CloseHandle( hPipe );
|
|
set_mysql_extended_error(mysql, CR_NAMEDPIPESETSTATE_ERROR,
|
|
unknown_sqlstate, ER(CR_NAMEDPIPESETSTATE_ERROR),
|
|
host, unix_socket, (ulong) GetLastError());
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
*arg_host=host ; *arg_unix_socket=unix_socket; /* connect arg */
|
|
return (hPipe);
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
Create new shared memory connection, return handler of connection
|
|
|
|
SYNOPSIS
|
|
create_shared_memory()
|
|
mysql Pointer of mysql structure
|
|
net Pointer of net structure
|
|
connect_timeout Timeout of connection
|
|
*/
|
|
|
|
#ifdef HAVE_SMEM
|
|
HANDLE create_shared_memory(MYSQL *mysql,NET *net, uint connect_timeout)
|
|
{
|
|
ulong smem_buffer_length = shared_memory_buffer_length + 4;
|
|
/*
|
|
event_connect_request is event object for start connection actions
|
|
event_connect_answer is event object for confirm, that server put data
|
|
handle_connect_file_map is file-mapping object, use for create shared
|
|
memory
|
|
handle_connect_map is pointer on shared memory
|
|
handle_map is pointer on shared memory for client
|
|
event_server_wrote,
|
|
event_server_read,
|
|
event_client_wrote,
|
|
event_client_read are events for transfer data between server and client
|
|
handle_file_map is file-mapping object, use for create shared memory
|
|
*/
|
|
HANDLE event_connect_request = NULL;
|
|
HANDLE event_connect_answer = NULL;
|
|
HANDLE handle_connect_file_map = NULL;
|
|
char *handle_connect_map = NULL;
|
|
|
|
char *handle_map = NULL;
|
|
HANDLE event_server_wrote = NULL;
|
|
HANDLE event_server_read = NULL;
|
|
HANDLE event_client_wrote = NULL;
|
|
HANDLE event_client_read = NULL;
|
|
HANDLE event_conn_closed = NULL;
|
|
HANDLE handle_file_map = NULL;
|
|
ulong connect_number;
|
|
char connect_number_char[22], *p;
|
|
char *tmp= NULL;
|
|
char *suffix_pos;
|
|
DWORD error_allow = 0;
|
|
DWORD error_code = 0;
|
|
DWORD event_access_rights= SYNCHRONIZE | EVENT_MODIFY_STATE;
|
|
char *shared_memory_base_name = mysql->options.shared_memory_base_name;
|
|
|
|
/*
|
|
get enough space base-name + '_' + longest suffix we might ever send
|
|
*/
|
|
if (!(tmp= (char *)my_malloc(strlen(shared_memory_base_name) + 32L, MYF(MY_FAE))))
|
|
goto err;
|
|
|
|
/*
|
|
The name of event and file-mapping events create agree next rule:
|
|
shared_memory_base_name+unique_part
|
|
Where:
|
|
shared_memory_base_name is unique value for each server
|
|
unique_part is uniquel value for each object (events and file-mapping)
|
|
*/
|
|
suffix_pos = strxmov(tmp, "Global\\", shared_memory_base_name, "_", NullS);
|
|
strmov(suffix_pos, "CONNECT_REQUEST");
|
|
if (!(event_connect_request= OpenEvent(event_access_rights, FALSE, tmp)))
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_CONNECT_REQUEST_ERROR;
|
|
goto err;
|
|
}
|
|
strmov(suffix_pos, "CONNECT_ANSWER");
|
|
if (!(event_connect_answer= OpenEvent(event_access_rights,FALSE,tmp)))
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_CONNECT_ANSWER_ERROR;
|
|
goto err;
|
|
}
|
|
strmov(suffix_pos, "CONNECT_DATA");
|
|
if (!(handle_connect_file_map= OpenFileMapping(FILE_MAP_WRITE,FALSE,tmp)))
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_CONNECT_FILE_MAP_ERROR;
|
|
goto err;
|
|
}
|
|
if (!(handle_connect_map= MapViewOfFile(handle_connect_file_map,
|
|
FILE_MAP_WRITE,0,0,sizeof(DWORD))))
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_CONNECT_MAP_ERROR;
|
|
goto err;
|
|
}
|
|
|
|
/* Send to server request of connection */
|
|
if (!SetEvent(event_connect_request))
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_CONNECT_SET_ERROR;
|
|
goto err;
|
|
}
|
|
|
|
/* Wait of answer from server */
|
|
if (WaitForSingleObject(event_connect_answer,connect_timeout*1000) !=
|
|
WAIT_OBJECT_0)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_CONNECT_ABANDONED_ERROR;
|
|
goto err;
|
|
}
|
|
|
|
/* Get number of connection */
|
|
connect_number = uint4korr(handle_connect_map);/*WAX2*/
|
|
p= int10_to_str(connect_number, connect_number_char, 10);
|
|
|
|
/*
|
|
The name of event and file-mapping events create agree next rule:
|
|
shared_memory_base_name+unique_part+number_of_connection
|
|
|
|
Where:
|
|
shared_memory_base_name is uniquel value for each server
|
|
unique_part is uniquel value for each object (events and file-mapping)
|
|
number_of_connection is number of connection between server and client
|
|
*/
|
|
suffix_pos = strxmov(tmp, "Global\\", shared_memory_base_name, "_", connect_number_char,
|
|
"_", NullS);
|
|
strmov(suffix_pos, "DATA");
|
|
if ((handle_file_map = OpenFileMapping(FILE_MAP_WRITE,FALSE,tmp)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_FILE_MAP_ERROR;
|
|
goto err2;
|
|
}
|
|
if ((handle_map = MapViewOfFile(handle_file_map,FILE_MAP_WRITE,0,0,
|
|
smem_buffer_length)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_MAP_ERROR;
|
|
goto err2;
|
|
}
|
|
|
|
strmov(suffix_pos, "SERVER_WROTE");
|
|
if ((event_server_wrote = OpenEvent(event_access_rights,FALSE,tmp)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_EVENT_ERROR;
|
|
goto err2;
|
|
}
|
|
|
|
strmov(suffix_pos, "SERVER_READ");
|
|
if ((event_server_read = OpenEvent(event_access_rights,FALSE,tmp)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_EVENT_ERROR;
|
|
goto err2;
|
|
}
|
|
|
|
strmov(suffix_pos, "CLIENT_WROTE");
|
|
if ((event_client_wrote = OpenEvent(event_access_rights,FALSE,tmp)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_EVENT_ERROR;
|
|
goto err2;
|
|
}
|
|
|
|
strmov(suffix_pos, "CLIENT_READ");
|
|
if ((event_client_read = OpenEvent(event_access_rights,FALSE,tmp)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_EVENT_ERROR;
|
|
goto err2;
|
|
}
|
|
|
|
strmov(suffix_pos, "CONNECTION_CLOSED");
|
|
if ((event_conn_closed = OpenEvent(event_access_rights,FALSE,tmp)) == NULL)
|
|
{
|
|
error_allow = CR_SHARED_MEMORY_EVENT_ERROR;
|
|
goto err2;
|
|
}
|
|
/*
|
|
Set event that server should send data
|
|
*/
|
|
SetEvent(event_server_read);
|
|
|
|
err2:
|
|
if (error_allow == 0)
|
|
{
|
|
net->vio= vio_new_win32shared_memory(net,handle_file_map,handle_map,
|
|
event_server_wrote,
|
|
event_server_read,event_client_wrote,
|
|
event_client_read,event_conn_closed);
|
|
}
|
|
else
|
|
{
|
|
error_code = GetLastError();
|
|
if (event_server_read)
|
|
CloseHandle(event_server_read);
|
|
if (event_server_wrote)
|
|
CloseHandle(event_server_wrote);
|
|
if (event_client_read)
|
|
CloseHandle(event_client_read);
|
|
if (event_client_wrote)
|
|
CloseHandle(event_client_wrote);
|
|
if (event_conn_closed)
|
|
CloseHandle(event_conn_closed);
|
|
if (handle_map)
|
|
UnmapViewOfFile(handle_map);
|
|
if (handle_file_map)
|
|
CloseHandle(handle_file_map);
|
|
}
|
|
err:
|
|
if (tmp)
|
|
my_free(tmp, MYF(0));
|
|
if (error_allow)
|
|
error_code = GetLastError();
|
|
if (event_connect_request)
|
|
CloseHandle(event_connect_request);
|
|
if (event_connect_answer)
|
|
CloseHandle(event_connect_answer);
|
|
if (handle_connect_map)
|
|
UnmapViewOfFile(handle_connect_map);
|
|
if (handle_connect_file_map)
|
|
CloseHandle(handle_connect_file_map);
|
|
if (error_allow)
|
|
{
|
|
if (error_allow == CR_SHARED_MEMORY_EVENT_ERROR)
|
|
set_mysql_extended_error(mysql, error_allow, unknown_sqlstate,
|
|
ER(error_allow), suffix_pos, error_code);
|
|
else
|
|
set_mysql_extended_error(mysql, error_allow, unknown_sqlstate,
|
|
ER(error_allow), error_code);
|
|
return(INVALID_HANDLE_VALUE);
|
|
}
|
|
return(handle_map);
|
|
}
|
|
#endif
|
|
|
|
/*****************************************************************************
|
|
Read a packet from server. Give error message if socket was down
|
|
or packet is an error message
|
|
*****************************************************************************/
|
|
|
|
ulong
|
|
cli_safe_read(MYSQL *mysql)
|
|
{
|
|
NET *net= &mysql->net;
|
|
ulong len=0;
|
|
init_sigpipe_variables
|
|
|
|
/* Don't give sigpipe errors if the client doesn't want them */
|
|
set_sigpipe(mysql);
|
|
if (net->vio != 0)
|
|
len=my_net_read(net);
|
|
reset_sigpipe(mysql);
|
|
|
|
if (len == packet_error || len == 0)
|
|
{
|
|
DBUG_PRINT("error",("Wrong connection or packet. fd: %s len: %lu",
|
|
vio_description(net->vio),len));
|
|
#ifdef MYSQL_SERVER
|
|
if (net->vio && vio_was_interrupted(net->vio))
|
|
return (packet_error);
|
|
#endif /*MYSQL_SERVER*/
|
|
end_server(mysql);
|
|
set_mysql_error(mysql, net->client_last_errno == ER_NET_PACKET_TOO_LARGE ?
|
|
CR_NET_PACKET_TOO_LARGE: CR_SERVER_LOST, unknown_sqlstate);
|
|
return (packet_error);
|
|
}
|
|
if (net->read_pos[0] == 255)
|
|
{
|
|
if (len > 3)
|
|
{
|
|
char *pos=(char*) net->read_pos+1;
|
|
net->client_last_errno=uint2korr(pos);
|
|
pos+=2;
|
|
len-=2;
|
|
if (protocol_41(mysql) && pos[0] == '#')
|
|
{
|
|
strmake(net->sqlstate, pos+1, SQLSTATE_LENGTH);
|
|
pos+= SQLSTATE_LENGTH+1;
|
|
}
|
|
(void) strmake(net->client_last_error,(char*) pos,
|
|
min((uint) len,(uint) sizeof(net->client_last_error)-1));
|
|
}
|
|
else
|
|
set_mysql_error(mysql, CR_UNKNOWN_ERROR, unknown_sqlstate);
|
|
/*
|
|
Cover a protocol design error: error packet does not
|
|
contain the server status. Therefore, the client has no way
|
|
to find out whether there are more result sets of
|
|
a multiple-result-set statement pending. Luckily, in 5.0 an
|
|
error always aborts execution of a statement, wherever it is
|
|
a multi-statement or a stored procedure, so it should be
|
|
safe to unconditionally turn off the flag here.
|
|
*/
|
|
mysql->server_status&= ~SERVER_MORE_RESULTS_EXISTS;
|
|
|
|
DBUG_PRINT("error",("Got error: %d/%s (%s)",
|
|
net->client_last_errno,
|
|
net->sqlstate,
|
|
net->client_last_error));
|
|
return(packet_error);
|
|
}
|
|
return len;
|
|
}
|
|
|
|
void free_rows(MYSQL_DATA *cur)
|
|
{
|
|
if (cur)
|
|
{
|
|
free_root(&cur->alloc,MYF(0));
|
|
my_free((uchar*) cur,MYF(0));
|
|
}
|
|
}
|
|
|
|
my_bool
|
|
cli_advanced_command(MYSQL *mysql, enum enum_server_command command,
|
|
const uchar *header, ulong header_length,
|
|
const uchar *arg, ulong arg_length, my_bool skip_check,
|
|
MYSQL_STMT *stmt __attribute__((unused)))
|
|
{
|
|
NET *net= &mysql->net;
|
|
my_bool result= 1;
|
|
init_sigpipe_variables
|
|
DBUG_ENTER("cli_advanced_command");
|
|
|
|
/* Don't give sigpipe errors if the client doesn't want them */
|
|
set_sigpipe(mysql);
|
|
|
|
if (mysql->net.vio == 0)
|
|
{ /* Do reconnect if possible */
|
|
if (mysql_reconnect(mysql))
|
|
DBUG_RETURN(1);
|
|
}
|
|
if (mysql->status != MYSQL_STATUS_READY ||
|
|
mysql->server_status & SERVER_MORE_RESULTS_EXISTS)
|
|
{
|
|
DBUG_PRINT("error",("state: %d", mysql->status));
|
|
set_mysql_error(mysql, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
|
|
DBUG_RETURN(1);
|
|
}
|
|
|
|
net_clear_error(net);
|
|
mysql->info=0;
|
|
mysql->affected_rows= ~(my_ulonglong) 0;
|
|
/*
|
|
We don't want to clear the protocol buffer on COM_QUIT, because if
|
|
the previous command was a shutdown command, we may have the
|
|
response for the COM_QUIT already in the communication buffer
|
|
*/
|
|
net_clear(&mysql->net, (command != COM_QUIT));
|
|
|
|
if (net_write_command(net,(uchar) command, header, header_length,
|
|
arg, arg_length))
|
|
{
|
|
DBUG_PRINT("error",("Can't send command to server. Error: %d",
|
|
socket_errno));
|
|
if (net->client_last_errno == ER_NET_PACKET_TOO_LARGE)
|
|
{
|
|
set_mysql_error(mysql, CR_NET_PACKET_TOO_LARGE, unknown_sqlstate);
|
|
goto end;
|
|
}
|
|
end_server(mysql);
|
|
if (mysql_reconnect(mysql))
|
|
goto end;
|
|
if (net_write_command(net,(uchar) command, header, header_length,
|
|
arg, arg_length))
|
|
{
|
|
set_mysql_error(mysql, CR_SERVER_GONE_ERROR, unknown_sqlstate);
|
|
goto end;
|
|
}
|
|
}
|
|
result=0;
|
|
if (!skip_check)
|
|
result= ((mysql->packet_length=cli_safe_read(mysql)) == packet_error ?
|
|
1 : 0);
|
|
end:
|
|
reset_sigpipe(mysql);
|
|
DBUG_PRINT("exit",("result: %d", result));
|
|
DBUG_RETURN(result);
|
|
}
|
|
|
|
void free_old_query(MYSQL *mysql)
|
|
{
|
|
DBUG_ENTER("free_old_query");
|
|
if (mysql->fields)
|
|
free_root(&mysql->field_alloc,MYF(0));
|
|
init_alloc_root(&mysql->field_alloc,8192,0); /* Assume rowlength < 8192 */
|
|
mysql->fields= 0;
|
|
mysql->field_count= 0; /* For API */
|
|
mysql->warning_count= 0;
|
|
mysql->info= 0;
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
/*
|
|
Flush result set sent from server
|
|
*/
|
|
|
|
static void cli_flush_use_result(MYSQL *mysql)
|
|
{
|
|
/* Clear the current execution status */
|
|
DBUG_ENTER("cli_flush_use_result");
|
|
DBUG_PRINT("warning",("Not all packets read, clearing them"));
|
|
for (;;)
|
|
{
|
|
ulong pkt_len;
|
|
if ((pkt_len=cli_safe_read(mysql)) == packet_error)
|
|
break;
|
|
if (pkt_len <= 8 && mysql->net.read_pos[0] == 254)
|
|
{
|
|
if (protocol_41(mysql))
|
|
{
|
|
char *pos= (char*) mysql->net.read_pos + 1;
|
|
mysql->warning_count=uint2korr(pos); pos+=2;
|
|
mysql->server_status=uint2korr(pos); pos+=2;
|
|
}
|
|
break; /* End of data */
|
|
}
|
|
}
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
|
|
#ifdef __WIN__
|
|
static my_bool is_NT(void)
|
|
{
|
|
char *os=getenv("OS");
|
|
return (os && !strcmp(os, "Windows_NT")) ? 1 : 0;
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef CHECK_LICENSE
|
|
/**
|
|
Check server side variable 'license'.
|
|
|
|
If the variable does not exist or does not contain 'Commercial',
|
|
we're talking to non-commercial server from commercial client.
|
|
|
|
@retval 0 success
|
|
@retval !0 network error or the server is not commercial.
|
|
Error code is saved in mysql->net.client_last_errno.
|
|
*/
|
|
|
|
static int check_license(MYSQL *mysql)
|
|
{
|
|
MYSQL_ROW row;
|
|
MYSQL_RES *res;
|
|
NET *net= &mysql->net;
|
|
static const char query[]= "SELECT @@license";
|
|
static const char required_license[]= STRINGIFY_ARG(LICENSE);
|
|
|
|
if (mysql_real_query(mysql, query, sizeof(query)-1))
|
|
{
|
|
if (net->client_last_errno == ER_UNKNOWN_SYSTEM_VARIABLE)
|
|
{
|
|
set_mysql_extended_error(mysql, CR_WRONG_LICENSE, unknown_sqlstate,
|
|
ER(CR_WRONG_LICENSE), required_license);
|
|
}
|
|
return 1;
|
|
}
|
|
if (!(res= mysql_use_result(mysql)))
|
|
return 1;
|
|
row= mysql_fetch_row(res);
|
|
/*
|
|
If no rows in result set, or column value is NULL (none of these
|
|
two is ever true for server variables now), or column value
|
|
mismatch, set wrong license error.
|
|
*/
|
|
if (!net->client_last_errno &&
|
|
(!row || !row[0] ||
|
|
strncmp(row[0], required_license, sizeof(required_license))))
|
|
{
|
|
set_mysql_extended_error(mysql, CR_WRONG_LICENSE, unknown_sqlstate,
|
|
ER(CR_WRONG_LICENSE), required_license);
|
|
}
|
|
mysql_free_result(res);
|
|
return net->client_last_errno;
|
|
}
|
|
#endif /* CHECK_LICENSE */
|
|
|
|
|
|
/**************************************************************************
|
|
Shut down connection
|
|
**************************************************************************/
|
|
|
|
void end_server(MYSQL *mysql)
|
|
{
|
|
int save_errno= errno;
|
|
DBUG_ENTER("end_server");
|
|
if (mysql->net.vio != 0)
|
|
{
|
|
init_sigpipe_variables
|
|
DBUG_PRINT("info",("Net: %s", vio_description(mysql->net.vio)));
|
|
set_sigpipe(mysql);
|
|
vio_delete(mysql->net.vio);
|
|
reset_sigpipe(mysql);
|
|
mysql->net.vio= 0; /* Marker */
|
|
}
|
|
net_end(&mysql->net);
|
|
free_old_query(mysql);
|
|
errno= save_errno;
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
|
|
void STDCALL
|
|
mysql_free_result(MYSQL_RES *result)
|
|
{
|
|
DBUG_ENTER("mysql_free_result");
|
|
DBUG_PRINT("enter",("mysql_res: 0x%lx", (long) result));
|
|
if (result)
|
|
{
|
|
MYSQL *mysql= result->handle;
|
|
if (mysql)
|
|
{
|
|
if (mysql->unbuffered_fetch_owner == &result->unbuffered_fetch_cancelled)
|
|
mysql->unbuffered_fetch_owner= 0;
|
|
if (mysql->status == MYSQL_STATUS_USE_RESULT)
|
|
{
|
|
(*mysql->methods->flush_use_result)(mysql);
|
|
mysql->status=MYSQL_STATUS_READY;
|
|
if (mysql->unbuffered_fetch_owner)
|
|
*mysql->unbuffered_fetch_owner= TRUE;
|
|
}
|
|
}
|
|
free_rows(result->data);
|
|
if (result->fields)
|
|
free_root(&result->field_alloc,MYF(0));
|
|
if (result->row)
|
|
my_free((uchar*) result->row,MYF(0));
|
|
my_free((uchar*) result,MYF(0));
|
|
}
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Get options from my.cnf
|
|
****************************************************************************/
|
|
|
|
static const char *default_options[]=
|
|
{
|
|
"port","socket","compress","password","pipe", "timeout", "user",
|
|
"init-command", "host", "database", "debug", "return-found-rows",
|
|
"ssl-key" ,"ssl-cert" ,"ssl-ca" ,"ssl-capath",
|
|
"character-sets-dir", "default-character-set", "interactive-timeout",
|
|
"connect-timeout", "local-infile", "disable-local-infile",
|
|
"replication-probe", "enable-reads-from-master", "repl-parse-query",
|
|
"ssl-cipher", "max-allowed-packet", "protocol", "shared-memory-base-name",
|
|
"multi-results", "multi-statements", "multi-queries", "secure-auth",
|
|
"report-data-truncation",
|
|
NullS
|
|
};
|
|
|
|
static TYPELIB option_types={array_elements(default_options)-1,
|
|
"options",default_options, NULL};
|
|
|
|
const char *sql_protocol_names_lib[] =
|
|
{ "TCP", "SOCKET", "PIPE", "MEMORY", NullS };
|
|
TYPELIB sql_protocol_typelib = {array_elements(sql_protocol_names_lib)-1,"",
|
|
sql_protocol_names_lib, NULL};
|
|
|
|
static int add_init_command(struct st_mysql_options *options, const char *cmd)
|
|
{
|
|
char *tmp;
|
|
|
|
if (!options->init_commands)
|
|
{
|
|
options->init_commands= (DYNAMIC_ARRAY*)my_malloc(sizeof(DYNAMIC_ARRAY),
|
|
MYF(MY_WME));
|
|
init_dynamic_array(options->init_commands,sizeof(char*),0,5 CALLER_INFO);
|
|
}
|
|
|
|
if (!(tmp= my_strdup(cmd,MYF(MY_WME))) ||
|
|
insert_dynamic(options->init_commands, (uchar*)&tmp))
|
|
{
|
|
my_free(tmp, MYF(MY_ALLOW_ZERO_PTR));
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mysql_read_default_options(struct st_mysql_options *options,
|
|
const char *filename,const char *group)
|
|
{
|
|
int argc;
|
|
char *argv_buff[1],**argv;
|
|
const char *groups[3];
|
|
DBUG_ENTER("mysql_read_default_options");
|
|
DBUG_PRINT("enter",("file: %s group: %s",filename,group ? group :"NULL"));
|
|
|
|
argc=1; argv=argv_buff; argv_buff[0]= (char*) "client";
|
|
groups[0]= (char*) "client"; groups[1]= (char*) group; groups[2]=0;
|
|
|
|
load_defaults(filename, groups, &argc, &argv);
|
|
if (argc != 1) /* If some default option */
|
|
{
|
|
char **option=argv;
|
|
while (*++option)
|
|
{
|
|
/* DBUG_PRINT("info",("option: %s",option[0])); */
|
|
if (option[0][0] == '-' && option[0][1] == '-')
|
|
{
|
|
char *end=strcend(*option,'=');
|
|
char *opt_arg=0;
|
|
if (*end)
|
|
{
|
|
opt_arg=end+1;
|
|
*end=0; /* Remove '=' */
|
|
}
|
|
/* Change all '_' in variable name to '-' */
|
|
for (end= *option ; *(end= strcend(end,'_')) ; )
|
|
*end= '-';
|
|
switch (find_type(*option+2,&option_types,2)) {
|
|
case 1: /* port */
|
|
if (opt_arg)
|
|
options->port=atoi(opt_arg);
|
|
break;
|
|
case 2: /* socket */
|
|
if (opt_arg)
|
|
{
|
|
my_free(options->unix_socket,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->unix_socket=my_strdup(opt_arg,MYF(MY_WME));
|
|
}
|
|
break;
|
|
case 3: /* compress */
|
|
options->compress=1;
|
|
options->client_flag|= CLIENT_COMPRESS;
|
|
break;
|
|
case 4: /* password */
|
|
if (opt_arg)
|
|
{
|
|
my_free(options->password,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->password=my_strdup(opt_arg,MYF(MY_WME));
|
|
}
|
|
break;
|
|
case 5:
|
|
options->protocol = MYSQL_PROTOCOL_PIPE;
|
|
case 20: /* connect_timeout */
|
|
case 6: /* timeout */
|
|
if (opt_arg)
|
|
options->connect_timeout=atoi(opt_arg);
|
|
break;
|
|
case 7: /* user */
|
|
if (opt_arg)
|
|
{
|
|
my_free(options->user,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->user=my_strdup(opt_arg,MYF(MY_WME));
|
|
}
|
|
break;
|
|
case 8: /* init-command */
|
|
add_init_command(options,opt_arg);
|
|
break;
|
|
case 9: /* host */
|
|
if (opt_arg)
|
|
{
|
|
my_free(options->host,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->host=my_strdup(opt_arg,MYF(MY_WME));
|
|
}
|
|
break;
|
|
case 10: /* database */
|
|
if (opt_arg)
|
|
{
|
|
my_free(options->db,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->db=my_strdup(opt_arg,MYF(MY_WME));
|
|
}
|
|
break;
|
|
case 11: /* debug */
|
|
#ifdef MYSQL_CLIENT
|
|
mysql_debug(opt_arg ? opt_arg : "d:t:o,/tmp/client.trace");
|
|
break;
|
|
#endif
|
|
case 12: /* return-found-rows */
|
|
options->client_flag|=CLIENT_FOUND_ROWS;
|
|
break;
|
|
#ifdef HAVE_OPENSSL
|
|
case 13: /* ssl_key */
|
|
my_free(options->ssl_key, MYF(MY_ALLOW_ZERO_PTR));
|
|
options->ssl_key = my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
case 14: /* ssl_cert */
|
|
my_free(options->ssl_cert, MYF(MY_ALLOW_ZERO_PTR));
|
|
options->ssl_cert = my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
case 15: /* ssl_ca */
|
|
my_free(options->ssl_ca, MYF(MY_ALLOW_ZERO_PTR));
|
|
options->ssl_ca = my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
case 16: /* ssl_capath */
|
|
my_free(options->ssl_capath, MYF(MY_ALLOW_ZERO_PTR));
|
|
options->ssl_capath = my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
case 26: /* ssl_cipher */
|
|
my_free(options->ssl_cipher, MYF(MY_ALLOW_ZERO_PTR));
|
|
options->ssl_cipher= my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
#else
|
|
case 13: /* Ignore SSL options */
|
|
case 14:
|
|
case 15:
|
|
case 16:
|
|
case 26:
|
|
break;
|
|
#endif /* HAVE_OPENSSL */
|
|
case 17: /* charset-lib */
|
|
my_free(options->charset_dir,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->charset_dir = my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
case 18:
|
|
my_free(options->charset_name,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->charset_name = my_strdup(opt_arg, MYF(MY_WME));
|
|
break;
|
|
case 19: /* Interactive-timeout */
|
|
options->client_flag|= CLIENT_INTERACTIVE;
|
|
break;
|
|
case 21:
|
|
if (!opt_arg || atoi(opt_arg) != 0)
|
|
options->client_flag|= CLIENT_LOCAL_FILES;
|
|
else
|
|
options->client_flag&= ~CLIENT_LOCAL_FILES;
|
|
break;
|
|
case 22:
|
|
options->client_flag&= ~CLIENT_LOCAL_FILES;
|
|
break;
|
|
case 23: /* replication probe */
|
|
#ifndef TO_BE_DELETED
|
|
options->rpl_probe= 1;
|
|
#endif
|
|
break;
|
|
case 24: /* enable-reads-from-master */
|
|
options->no_master_reads= 0;
|
|
break;
|
|
case 25: /* repl-parse-query */
|
|
#ifndef TO_BE_DELETED
|
|
options->rpl_parse= 1;
|
|
#endif
|
|
break;
|
|
case 27:
|
|
if (opt_arg)
|
|
options->max_allowed_packet= atoi(opt_arg);
|
|
break;
|
|
case 28: /* protocol */
|
|
if ((options->protocol= find_type(opt_arg,
|
|
&sql_protocol_typelib,0)) <= 0)
|
|
{
|
|
fprintf(stderr, "Unknown option to protocol: %s\n", opt_arg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 29: /* shared_memory_base_name */
|
|
#ifdef HAVE_SMEM
|
|
if (options->shared_memory_base_name != def_shared_memory_base_name)
|
|
my_free(options->shared_memory_base_name,MYF(MY_ALLOW_ZERO_PTR));
|
|
options->shared_memory_base_name=my_strdup(opt_arg,MYF(MY_WME));
|
|
#endif
|
|
break;
|
|
case 30:
|
|
options->client_flag|= CLIENT_MULTI_RESULTS;
|
|
break;
|
|
case 31:
|
|
case 32:
|
|
options->client_flag|= CLIENT_MULTI_STATEMENTS | CLIENT_MULTI_RESULTS;
|
|
break;
|
|
case 33: /* secure-auth */
|
|
options->secure_auth= TRUE;
|
|
break;
|
|
case 34: /* report-data-truncation */
|
|
options->report_data_truncation= opt_arg ? test(atoi(opt_arg)) : 1;
|
|
break;
|
|
default:
|
|
DBUG_PRINT("warning",("unknown option: %s",option[0]));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
free_defaults(argv);
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
Get column lengths of the current row
|
|
If one uses mysql_use_result, res->lengths contains the length information,
|
|
else the lengths are calculated from the offset between pointers.
|
|
**************************************************************************/
|
|
|
|
static void cli_fetch_lengths(ulong *to, MYSQL_ROW column,
|
|
unsigned int field_count)
|
|
{
|
|
ulong *prev_length;
|
|
char *start=0;
|
|
MYSQL_ROW end;
|
|
|
|
prev_length=0; /* Keep gcc happy */
|
|
for (end=column + field_count + 1 ; column != end ; column++, to++)
|
|
{
|
|
if (!*column)
|
|
{
|
|
*to= 0; /* Null */
|
|
continue;
|
|
}
|
|
if (start) /* Found end of prev string */
|
|
*prev_length= (ulong) (*column-start-1);
|
|
start= *column;
|
|
prev_length= to;
|
|
}
|
|
}
|
|
|
|
/***************************************************************************
|
|
Change field rows to field structs
|
|
***************************************************************************/
|
|
|
|
MYSQL_FIELD *
|
|
unpack_fields(MYSQL_DATA *data,MEM_ROOT *alloc,uint fields,
|
|
my_bool default_value, uint server_capabilities)
|
|
{
|
|
MYSQL_ROWS *row;
|
|
MYSQL_FIELD *field,*result;
|
|
ulong lengths[9]; /* Max of fields */
|
|
DBUG_ENTER("unpack_fields");
|
|
|
|
field= result= (MYSQL_FIELD*) alloc_root(alloc,
|
|
(uint) sizeof(*field)*fields);
|
|
if (!result)
|
|
{
|
|
free_rows(data); /* Free old data */
|
|
DBUG_RETURN(0);
|
|
}
|
|
bzero((char*) field, (uint) sizeof(MYSQL_FIELD)*fields);
|
|
if (server_capabilities & CLIENT_PROTOCOL_41)
|
|
{
|
|
/* server is 4.1, and returns the new field result format */
|
|
for (row=data->data; row ; row = row->next,field++)
|
|
{
|
|
uchar *pos;
|
|
/* fields count may be wrong */
|
|
DBUG_ASSERT((uint) (field - result) < fields);
|
|
cli_fetch_lengths(&lengths[0], row->data, default_value ? 8 : 7);
|
|
field->catalog= strmake_root(alloc,(char*) row->data[0], lengths[0]);
|
|
field->db= strmake_root(alloc,(char*) row->data[1], lengths[1]);
|
|
field->table= strmake_root(alloc,(char*) row->data[2], lengths[2]);
|
|
field->org_table= strmake_root(alloc,(char*) row->data[3], lengths[3]);
|
|
field->name= strmake_root(alloc,(char*) row->data[4], lengths[4]);
|
|
field->org_name= strmake_root(alloc,(char*) row->data[5], lengths[5]);
|
|
|
|
field->catalog_length= lengths[0];
|
|
field->db_length= lengths[1];
|
|
field->table_length= lengths[2];
|
|
field->org_table_length= lengths[3];
|
|
field->name_length= lengths[4];
|
|
field->org_name_length= lengths[5];
|
|
|
|
/* Unpack fixed length parts */
|
|
pos= (uchar*) row->data[6];
|
|
field->charsetnr= uint2korr(pos);
|
|
field->length= (uint) uint4korr(pos+2);
|
|
field->type= (enum enum_field_types) pos[6];
|
|
field->flags= uint2korr(pos+7);
|
|
field->decimals= (uint) pos[9];
|
|
|
|
if (INTERNAL_NUM_FIELD(field))
|
|
field->flags|= NUM_FLAG;
|
|
if (default_value && row->data[7])
|
|
{
|
|
field->def=strmake_root(alloc,(char*) row->data[7], lengths[7]);
|
|
field->def_length= lengths[7];
|
|
}
|
|
else
|
|
field->def=0;
|
|
field->max_length= 0;
|
|
}
|
|
}
|
|
#ifndef DELETE_SUPPORT_OF_4_0_PROTOCOL
|
|
else
|
|
{
|
|
/* old protocol, for backward compatibility */
|
|
for (row=data->data; row ; row = row->next,field++)
|
|
{
|
|
cli_fetch_lengths(&lengths[0], row->data, default_value ? 6 : 5);
|
|
field->org_table= field->table= strdup_root(alloc,(char*) row->data[0]);
|
|
field->name= strdup_root(alloc,(char*) row->data[1]);
|
|
field->length= (uint) uint3korr(row->data[2]);
|
|
field->type= (enum enum_field_types) (uchar) row->data[3][0];
|
|
|
|
field->catalog=(char*) "";
|
|
field->db= (char*) "";
|
|
field->catalog_length= 0;
|
|
field->db_length= 0;
|
|
field->org_table_length= field->table_length= lengths[0];
|
|
field->name_length= lengths[1];
|
|
|
|
if (server_capabilities & CLIENT_LONG_FLAG)
|
|
{
|
|
field->flags= uint2korr(row->data[4]);
|
|
field->decimals=(uint) (uchar) row->data[4][2];
|
|
}
|
|
else
|
|
{
|
|
field->flags= (uint) (uchar) row->data[4][0];
|
|
field->decimals=(uint) (uchar) row->data[4][1];
|
|
}
|
|
if (INTERNAL_NUM_FIELD(field))
|
|
field->flags|= NUM_FLAG;
|
|
if (default_value && row->data[5])
|
|
{
|
|
field->def=strdup_root(alloc,(char*) row->data[5]);
|
|
field->def_length= lengths[5];
|
|
}
|
|
else
|
|
field->def=0;
|
|
field->max_length= 0;
|
|
}
|
|
}
|
|
#endif /* DELETE_SUPPORT_OF_4_0_PROTOCOL */
|
|
free_rows(data); /* Free old data */
|
|
DBUG_RETURN(result);
|
|
}
|
|
|
|
/* Read all rows (fields or data) from server */
|
|
|
|
MYSQL_DATA *cli_read_rows(MYSQL *mysql,MYSQL_FIELD *mysql_fields,
|
|
unsigned int fields)
|
|
{
|
|
uint field;
|
|
ulong pkt_len;
|
|
ulong len;
|
|
uchar *cp;
|
|
char *to, *end_to;
|
|
MYSQL_DATA *result;
|
|
MYSQL_ROWS **prev_ptr,*cur;
|
|
NET *net = &mysql->net;
|
|
DBUG_ENTER("cli_read_rows");
|
|
|
|
if ((pkt_len= cli_safe_read(mysql)) == packet_error)
|
|
DBUG_RETURN(0);
|
|
if (!(result=(MYSQL_DATA*) my_malloc(sizeof(MYSQL_DATA),
|
|
MYF(MY_WME | MY_ZEROFILL))))
|
|
{
|
|
set_mysql_error(mysql, CR_OUT_OF_MEMORY, unknown_sqlstate);
|
|
DBUG_RETURN(0);
|
|
}
|
|
init_alloc_root(&result->alloc,8192,0); /* Assume rowlength < 8192 */
|
|
result->alloc.min_malloc=sizeof(MYSQL_ROWS);
|
|
prev_ptr= &result->data;
|
|
result->rows=0;
|
|
result->fields=fields;
|
|
|
|
/*
|
|
The last EOF packet is either a single 254 character or (in MySQL 4.1)
|
|
254 followed by 1-7 status bytes.
|
|
|
|
This doesn't conflict with normal usage of 254 which stands for a
|
|
string where the length of the string is 8 bytes. (see net_field_length())
|
|
*/
|
|
|
|
while (*(cp=net->read_pos) != 254 || pkt_len >= 8)
|
|
{
|
|
result->rows++;
|
|
if (!(cur= (MYSQL_ROWS*) alloc_root(&result->alloc,
|
|
sizeof(MYSQL_ROWS))) ||
|
|
!(cur->data= ((MYSQL_ROW)
|
|
alloc_root(&result->alloc,
|
|
(fields+1)*sizeof(char *)+pkt_len))))
|
|
{
|
|
free_rows(result);
|
|
set_mysql_error(mysql, CR_OUT_OF_MEMORY, unknown_sqlstate);
|
|
DBUG_RETURN(0);
|
|
}
|
|
*prev_ptr=cur;
|
|
prev_ptr= &cur->next;
|
|
to= (char*) (cur->data+fields+1);
|
|
end_to=to+pkt_len-1;
|
|
for (field=0 ; field < fields ; field++)
|
|
{
|
|
if ((len=(ulong) net_field_length(&cp)) == NULL_LENGTH)
|
|
{ /* null field */
|
|
cur->data[field] = 0;
|
|
}
|
|
else
|
|
{
|
|
cur->data[field] = to;
|
|
if (len > (ulong) (end_to - to))
|
|
{
|
|
free_rows(result);
|
|
set_mysql_error(mysql, CR_MALFORMED_PACKET, unknown_sqlstate);
|
|
DBUG_RETURN(0);
|
|
}
|
|
memcpy(to,(char*) cp,len); to[len]=0;
|
|
to+=len+1;
|
|
cp+=len;
|
|
if (mysql_fields)
|
|
{
|
|
if (mysql_fields[field].max_length < len)
|
|
mysql_fields[field].max_length=len;
|
|
}
|
|
}
|
|
}
|
|
cur->data[field]=to; /* End of last field */
|
|
if ((pkt_len=cli_safe_read(mysql)) == packet_error)
|
|
{
|
|
free_rows(result);
|
|
DBUG_RETURN(0);
|
|
}
|
|
}
|
|
*prev_ptr=0; /* last pointer is null */
|
|
if (pkt_len > 1) /* MySQL 4.1 protocol */
|
|
{
|
|
mysql->warning_count= uint2korr(cp+1);
|
|
mysql->server_status= uint2korr(cp+3);
|
|
DBUG_PRINT("info",("status: %u warning_count: %u",
|
|
mysql->server_status, mysql->warning_count));
|
|
}
|
|
DBUG_PRINT("exit", ("Got %lu rows", (ulong) result->rows));
|
|
DBUG_RETURN(result);
|
|
}
|
|
|
|
/*
|
|
Read one row. Uses packet buffer as storage for fields.
|
|
When next packet is read, the previous field values are destroyed
|
|
*/
|
|
|
|
|
|
static int
|
|
read_one_row(MYSQL *mysql,uint fields,MYSQL_ROW row, ulong *lengths)
|
|
{
|
|
uint field;
|
|
ulong pkt_len,len;
|
|
uchar *pos, *prev_pos, *end_pos;
|
|
NET *net= &mysql->net;
|
|
|
|
if ((pkt_len=cli_safe_read(mysql)) == packet_error)
|
|
return -1;
|
|
if (pkt_len <= 8 && net->read_pos[0] == 254)
|
|
{
|
|
if (pkt_len > 1) /* MySQL 4.1 protocol */
|
|
{
|
|
mysql->warning_count= uint2korr(net->read_pos+1);
|
|
mysql->server_status= uint2korr(net->read_pos+3);
|
|
}
|
|
return 1; /* End of data */
|
|
}
|
|
prev_pos= 0; /* allowed to write at packet[-1] */
|
|
pos=net->read_pos;
|
|
end_pos=pos+pkt_len;
|
|
for (field=0 ; field < fields ; field++)
|
|
{
|
|
if ((len=(ulong) net_field_length(&pos)) == NULL_LENGTH)
|
|
{ /* null field */
|
|
row[field] = 0;
|
|
*lengths++=0;
|
|
}
|
|
else
|
|
{
|
|
if (len > (ulong) (end_pos - pos))
|
|
{
|
|
set_mysql_error(mysql, CR_UNKNOWN_ERROR, unknown_sqlstate);
|
|
return -1;
|
|
}
|
|
row[field] = (char*) pos;
|
|
pos+=len;
|
|
*lengths++=len;
|
|
}
|
|
if (prev_pos)
|
|
*prev_pos=0; /* Terminate prev field */
|
|
prev_pos=pos;
|
|
}
|
|
row[field]=(char*) prev_pos+1; /* End of last field */
|
|
*prev_pos=0; /* Terminate last field */
|
|
return 0;
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
Init MySQL structure or allocate one
|
|
****************************************************************************/
|
|
|
|
MYSQL * STDCALL
|
|
mysql_init(MYSQL *mysql)
|
|
{
|
|
if (mysql_server_init(0, NULL, NULL))
|
|
return 0;
|
|
if (!mysql)
|
|
{
|
|
if (!(mysql=(MYSQL*) my_malloc(sizeof(*mysql),MYF(MY_WME | MY_ZEROFILL))))
|
|
return 0;
|
|
mysql->free_me=1;
|
|
}
|
|
else
|
|
bzero((char*) (mysql), sizeof(*(mysql)));
|
|
mysql->options.connect_timeout= CONNECT_TIMEOUT;
|
|
mysql->last_used_con= mysql->next_slave= mysql->master = mysql;
|
|
mysql->charset=default_client_charset_info;
|
|
strmov(mysql->net.sqlstate, not_error_sqlstate);
|
|
/*
|
|
By default, we are a replication pivot. The caller must reset it
|
|
after we return if this is not the case.
|
|
*/
|
|
#ifndef TO_BE_DELETED
|
|
mysql->rpl_pivot = 1;
|
|
#endif
|
|
|
|
/*
|
|
Only enable LOAD DATA INFILE by default if configured with
|
|
--enable-local-infile
|
|
*/
|
|
|
|
#if defined(ENABLED_LOCAL_INFILE) && !defined(MYSQL_SERVER)
|
|
mysql->options.client_flag|= CLIENT_LOCAL_FILES;
|
|
#endif
|
|
|
|
#ifdef HAVE_SMEM
|
|
mysql->options.shared_memory_base_name= (char*) def_shared_memory_base_name;
|
|
#endif
|
|
|
|
mysql->options.methods_to_use= MYSQL_OPT_GUESS_CONNECTION;
|
|
mysql->options.report_data_truncation= TRUE; /* default */
|
|
|
|
/*
|
|
By default we don't reconnect because it could silently corrupt data (after
|
|
reconnection you potentially lose table locks, user variables, session
|
|
variables (transactions but they are specifically dealt with in
|
|
mysql_reconnect()).
|
|
This is a change: < 5.0.3 mysql->reconnect was set to 1 by default.
|
|
How this change impacts existing apps:
|
|
- existing apps which relyed on the default will see a behaviour change;
|
|
they will have to set reconnect=1 after mysql_real_connect().
|
|
- existing apps which explicitely asked for reconnection (the only way they
|
|
could do it was by setting mysql.reconnect to 1 after mysql_real_connect())
|
|
will not see a behaviour change.
|
|
- existing apps which explicitely asked for no reconnection
|
|
(mysql.reconnect=0) will not see a behaviour change.
|
|
*/
|
|
mysql->reconnect= 0;
|
|
|
|
return mysql;
|
|
}
|
|
|
|
|
|
/*
|
|
Fill in SSL part of MYSQL structure and set 'use_ssl' flag.
|
|
NB! Errors are not reported until you do mysql_real_connect.
|
|
*/
|
|
|
|
#define strdup_if_not_null(A) (A) == 0 ? 0 : my_strdup((A),MYF(MY_WME))
|
|
|
|
my_bool STDCALL
|
|
mysql_ssl_set(MYSQL *mysql __attribute__((unused)) ,
|
|
const char *key __attribute__((unused)),
|
|
const char *cert __attribute__((unused)),
|
|
const char *ca __attribute__((unused)),
|
|
const char *capath __attribute__((unused)),
|
|
const char *cipher __attribute__((unused)))
|
|
{
|
|
DBUG_ENTER("mysql_ssl_set");
|
|
#ifdef HAVE_OPENSSL
|
|
mysql->options.ssl_key= strdup_if_not_null(key);
|
|
mysql->options.ssl_cert= strdup_if_not_null(cert);
|
|
mysql->options.ssl_ca= strdup_if_not_null(ca);
|
|
mysql->options.ssl_capath= strdup_if_not_null(capath);
|
|
mysql->options.ssl_cipher= strdup_if_not_null(cipher);
|
|
#endif /* HAVE_OPENSSL */
|
|
DBUG_RETURN(0);
|
|
}
|
|
|
|
|
|
/*
|
|
Free strings in the SSL structure and clear 'use_ssl' flag.
|
|
NB! Errors are not reported until you do mysql_real_connect.
|
|
*/
|
|
|
|
#ifdef HAVE_OPENSSL
|
|
|
|
static void
|
|
mysql_ssl_free(MYSQL *mysql __attribute__((unused)))
|
|
{
|
|
struct st_VioSSLFd *ssl_fd= (struct st_VioSSLFd*) mysql->connector_fd;
|
|
DBUG_ENTER("mysql_ssl_free");
|
|
|
|
my_free(mysql->options.ssl_key, MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.ssl_cert, MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.ssl_ca, MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.ssl_capath, MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.ssl_cipher, MYF(MY_ALLOW_ZERO_PTR));
|
|
if (ssl_fd)
|
|
SSL_CTX_free(ssl_fd->ssl_context);
|
|
my_free(mysql->connector_fd,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.ssl_key = 0;
|
|
mysql->options.ssl_cert = 0;
|
|
mysql->options.ssl_ca = 0;
|
|
mysql->options.ssl_capath = 0;
|
|
mysql->options.ssl_cipher= 0;
|
|
mysql->options.use_ssl = FALSE;
|
|
mysql->connector_fd = 0;
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
#endif /* HAVE_OPENSSL */
|
|
|
|
/*
|
|
Return the SSL cipher (if any) used for current
|
|
connection to the server.
|
|
|
|
SYNOPSYS
|
|
mysql_get_ssl_cipher()
|
|
mysql pointer to the mysql connection
|
|
|
|
*/
|
|
|
|
const char * STDCALL
|
|
mysql_get_ssl_cipher(MYSQL *mysql __attribute__((unused)))
|
|
{
|
|
DBUG_ENTER("mysql_get_ssl_cipher");
|
|
#ifdef HAVE_OPENSSL
|
|
if (mysql->net.vio && mysql->net.vio->ssl_arg)
|
|
DBUG_RETURN(SSL_get_cipher_name((SSL*)mysql->net.vio->ssl_arg));
|
|
#endif /* HAVE_OPENSSL */
|
|
DBUG_RETURN(NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
Check the server's (subject) Common Name against the
|
|
hostname we connected to
|
|
|
|
SYNOPSIS
|
|
ssl_verify_server_cert()
|
|
vio pointer to a SSL connected vio
|
|
server_hostname name of the server that we connected to
|
|
|
|
RETURN VALUES
|
|
0 Success
|
|
1 Failed to validate server
|
|
|
|
*/
|
|
|
|
#ifdef HAVE_OPENSSL
|
|
|
|
static int ssl_verify_server_cert(Vio *vio, const char* server_hostname)
|
|
{
|
|
SSL *ssl;
|
|
X509 *server_cert;
|
|
char *cp1, *cp2;
|
|
char buf[256];
|
|
DBUG_ENTER("ssl_verify_server_cert");
|
|
DBUG_PRINT("enter", ("server_hostname: %s", server_hostname));
|
|
|
|
if (!(ssl= (SSL*)vio->ssl_arg))
|
|
{
|
|
DBUG_PRINT("error", ("No SSL pointer found"));
|
|
DBUG_RETURN(1);
|
|
}
|
|
|
|
if (!server_hostname)
|
|
{
|
|
DBUG_PRINT("error", ("No server hostname supplied"));
|
|
DBUG_RETURN(1);
|
|
}
|
|
|
|
if (!(server_cert= SSL_get_peer_certificate(ssl)))
|
|
{
|
|
DBUG_PRINT("error", ("Could not get server certificate"));
|
|
DBUG_RETURN(1);
|
|
}
|
|
|
|
/*
|
|
We already know that the certificate exchanged was valid; the SSL library
|
|
handled that. Now we need to verify that the contents of the certificate
|
|
are what we expect.
|
|
*/
|
|
|
|
X509_NAME_oneline(X509_get_subject_name(server_cert), buf, sizeof(buf));
|
|
X509_free (server_cert);
|
|
|
|
DBUG_PRINT("info", ("hostname in cert: %s", buf));
|
|
cp1= strstr(buf, "/CN=");
|
|
if (cp1)
|
|
{
|
|
cp1+= 4; /* Skip the "/CN=" that we found */
|
|
/* Search for next / which might be the delimiter for email */
|
|
cp2= strchr(cp1, '/');
|
|
if (cp2)
|
|
*cp2= '\0';
|
|
DBUG_PRINT("info", ("Server hostname in cert: %s", cp1));
|
|
if (!strcmp(cp1, server_hostname))
|
|
{
|
|
/* Success */
|
|
DBUG_RETURN(0);
|
|
}
|
|
}
|
|
DBUG_PRINT("error", ("SSL certificate validation failure"));
|
|
DBUG_RETURN(1);
|
|
}
|
|
|
|
#endif /* HAVE_OPENSSL */
|
|
|
|
|
|
/*
|
|
Note that the mysql argument must be initialized with mysql_init()
|
|
before calling mysql_real_connect !
|
|
*/
|
|
|
|
static my_bool cli_read_query_result(MYSQL *mysql);
|
|
static MYSQL_RES *cli_use_result(MYSQL *mysql);
|
|
|
|
static MYSQL_METHODS client_methods=
|
|
{
|
|
cli_read_query_result, /* read_query_result */
|
|
cli_advanced_command, /* advanced_command */
|
|
cli_read_rows, /* read_rows */
|
|
cli_use_result, /* use_result */
|
|
cli_fetch_lengths, /* fetch_lengths */
|
|
cli_flush_use_result /* flush_use_result */
|
|
#ifndef MYSQL_SERVER
|
|
,cli_list_fields, /* list_fields */
|
|
cli_read_prepare_result, /* read_prepare_result */
|
|
cli_stmt_execute, /* stmt_execute */
|
|
cli_read_binary_rows, /* read_binary_rows */
|
|
cli_unbuffered_fetch, /* unbuffered_fetch */
|
|
NULL, /* free_embedded_thd */
|
|
cli_read_statistics, /* read_statistics */
|
|
cli_read_query_result, /* next_result */
|
|
cli_read_change_user_result, /* read_change_user_result */
|
|
cli_read_binary_rows /* read_rows_from_cursor */
|
|
#endif
|
|
};
|
|
|
|
C_MODE_START
|
|
int mysql_init_character_set(MYSQL *mysql)
|
|
{
|
|
const char *default_collation_name;
|
|
|
|
/* Set character set */
|
|
if (!mysql->options.charset_name)
|
|
{
|
|
default_collation_name= MYSQL_DEFAULT_COLLATION_NAME;
|
|
if (!(mysql->options.charset_name=
|
|
my_strdup(MYSQL_DEFAULT_CHARSET_NAME,MYF(MY_WME))))
|
|
return 1;
|
|
}
|
|
else
|
|
default_collation_name= NULL;
|
|
|
|
{
|
|
const char *save= charsets_dir;
|
|
if (mysql->options.charset_dir)
|
|
charsets_dir=mysql->options.charset_dir;
|
|
mysql->charset=get_charset_by_csname(mysql->options.charset_name,
|
|
MY_CS_PRIMARY, MYF(MY_WME));
|
|
if (mysql->charset && default_collation_name)
|
|
{
|
|
CHARSET_INFO *collation;
|
|
if ((collation=
|
|
get_charset_by_name(default_collation_name, MYF(MY_WME))))
|
|
{
|
|
if (!my_charset_same(mysql->charset, collation))
|
|
{
|
|
my_printf_error(ER_UNKNOWN_ERROR,
|
|
"COLLATION %s is not valid for CHARACTER SET %s",
|
|
MYF(0),
|
|
default_collation_name, mysql->options.charset_name);
|
|
mysql->charset= NULL;
|
|
}
|
|
else
|
|
{
|
|
mysql->charset= collation;
|
|
}
|
|
}
|
|
else
|
|
mysql->charset= NULL;
|
|
}
|
|
charsets_dir= save;
|
|
}
|
|
|
|
if (!mysql->charset)
|
|
{
|
|
if (mysql->options.charset_dir)
|
|
set_mysql_extended_error(mysql, CR_CANT_READ_CHARSET, unknown_sqlstate,
|
|
ER(CR_CANT_READ_CHARSET),
|
|
mysql->options.charset_name,
|
|
mysql->options.charset_dir);
|
|
else
|
|
{
|
|
char cs_dir_name[FN_REFLEN];
|
|
get_charsets_dir(cs_dir_name);
|
|
set_mysql_extended_error(mysql, CR_CANT_READ_CHARSET, unknown_sqlstate,
|
|
ER(CR_CANT_READ_CHARSET),
|
|
mysql->options.charset_name,
|
|
cs_dir_name);
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
C_MODE_END
|
|
|
|
|
|
MYSQL * STDCALL
|
|
CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
|
|
const char *passwd, const char *db,
|
|
uint port, const char *unix_socket,ulong client_flag)
|
|
{
|
|
char buff[NAME_LEN+USERNAME_LENGTH+100];
|
|
char *end,*host_info;
|
|
my_socket sock;
|
|
in_addr_t ip_addr;
|
|
struct sockaddr_in sock_addr;
|
|
ulong pkt_length;
|
|
NET *net= &mysql->net;
|
|
#ifdef MYSQL_SERVER
|
|
thr_alarm_t alarmed;
|
|
ALARM alarm_buff;
|
|
#endif
|
|
#ifdef __WIN__
|
|
HANDLE hPipe=INVALID_HANDLE_VALUE;
|
|
#endif
|
|
#ifdef HAVE_SYS_UN_H
|
|
struct sockaddr_un UNIXaddr;
|
|
#endif
|
|
init_sigpipe_variables
|
|
DBUG_ENTER("mysql_real_connect");
|
|
LINT_INIT(host_info);
|
|
|
|
DBUG_PRINT("enter",("host: %s db: %s user: %s",
|
|
host ? host : "(Null)",
|
|
db ? db : "(Null)",
|
|
user ? user : "(Null)"));
|
|
|
|
/* Don't give sigpipe errors if the client doesn't want them */
|
|
set_sigpipe(mysql);
|
|
mysql->methods= &client_methods;
|
|
net->vio = 0; /* If something goes wrong */
|
|
mysql->client_flag=0; /* For handshake */
|
|
|
|
/* use default options */
|
|
if (mysql->options.my_cnf_file || mysql->options.my_cnf_group)
|
|
{
|
|
mysql_read_default_options(&mysql->options,
|
|
(mysql->options.my_cnf_file ?
|
|
mysql->options.my_cnf_file : "my"),
|
|
mysql->options.my_cnf_group);
|
|
my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.my_cnf_file=mysql->options.my_cnf_group=0;
|
|
}
|
|
|
|
/* Some empty-string-tests are done because of ODBC */
|
|
if (!host || !host[0])
|
|
host=mysql->options.host;
|
|
if (!user || !user[0])
|
|
{
|
|
user=mysql->options.user;
|
|
if (!user)
|
|
user= "";
|
|
}
|
|
if (!passwd)
|
|
{
|
|
passwd=mysql->options.password;
|
|
#if !defined(DONT_USE_MYSQL_PWD) && !defined(MYSQL_SERVER)
|
|
if (!passwd)
|
|
passwd=getenv("MYSQL_PWD"); /* get it from environment */
|
|
#endif
|
|
if (!passwd)
|
|
passwd= "";
|
|
}
|
|
if (!db || !db[0])
|
|
db=mysql->options.db;
|
|
if (!port)
|
|
port=mysql->options.port;
|
|
if (!unix_socket)
|
|
unix_socket=mysql->options.unix_socket;
|
|
|
|
mysql->server_status=SERVER_STATUS_AUTOCOMMIT;
|
|
|
|
/*
|
|
Part 0: Grab a socket and connect it to the server
|
|
*/
|
|
#if defined(HAVE_SMEM)
|
|
if ((!mysql->options.protocol ||
|
|
mysql->options.protocol == MYSQL_PROTOCOL_MEMORY) &&
|
|
(!host || !strcmp(host,LOCAL_HOST)))
|
|
{
|
|
if ((create_shared_memory(mysql,net, mysql->options.connect_timeout)) ==
|
|
INVALID_HANDLE_VALUE)
|
|
{
|
|
DBUG_PRINT("error",
|
|
("host: '%s' socket: '%s' shared memory: %s have_tcpip: %d",
|
|
host ? host : "<null>",
|
|
unix_socket ? unix_socket : "<null>",
|
|
(int) mysql->options.shared_memory_base_name,
|
|
(int) have_tcpip));
|
|
if (mysql->options.protocol == MYSQL_PROTOCOL_MEMORY)
|
|
goto error;
|
|
/* Try also with PIPE or TCP/IP */
|
|
}
|
|
else
|
|
{
|
|
mysql->options.protocol=MYSQL_PROTOCOL_MEMORY;
|
|
sock=0;
|
|
unix_socket = 0;
|
|
host=mysql->options.shared_memory_base_name;
|
|
my_snprintf(host_info=buff, sizeof(buff)-1,
|
|
ER(CR_SHARED_MEMORY_CONNECTION), host);
|
|
}
|
|
}
|
|
#endif /* HAVE_SMEM */
|
|
#if defined(HAVE_SYS_UN_H)
|
|
if (!net->vio &&
|
|
(!mysql->options.protocol ||
|
|
mysql->options.protocol == MYSQL_PROTOCOL_SOCKET) &&
|
|
(unix_socket || mysql_unix_port) &&
|
|
(!host || !strcmp(host,LOCAL_HOST)))
|
|
{
|
|
host=LOCAL_HOST;
|
|
if (!unix_socket)
|
|
unix_socket=mysql_unix_port;
|
|
host_info=(char*) ER(CR_LOCALHOST_CONNECTION);
|
|
DBUG_PRINT("info",("Using UNIX sock '%s'",unix_socket));
|
|
if ((sock = socket(AF_UNIX,SOCK_STREAM,0)) == SOCKET_ERROR)
|
|
{
|
|
set_mysql_extended_error(mysql, CR_SOCKET_CREATE_ERROR,
|
|
unknown_sqlstate,
|
|
ER(CR_SOCKET_CREATE_ERROR),
|
|
socket_errno);
|
|
goto error;
|
|
}
|
|
net->vio= vio_new(sock, VIO_TYPE_SOCKET,
|
|
VIO_LOCALHOST | VIO_BUFFERED_READ);
|
|
bzero((char*) &UNIXaddr,sizeof(UNIXaddr));
|
|
UNIXaddr.sun_family = AF_UNIX;
|
|
strmake(UNIXaddr.sun_path, unix_socket, sizeof(UNIXaddr.sun_path)-1);
|
|
if (my_connect(sock,(struct sockaddr *) &UNIXaddr, sizeof(UNIXaddr),
|
|
mysql->options.connect_timeout))
|
|
{
|
|
DBUG_PRINT("error",("Got error %d on connect to local server",
|
|
socket_errno));
|
|
set_mysql_extended_error(mysql, CR_CONNECTION_ERROR,
|
|
unknown_sqlstate,
|
|
ER(CR_CONNECTION_ERROR),
|
|
unix_socket, socket_errno);
|
|
goto error;
|
|
}
|
|
mysql->options.protocol=MYSQL_PROTOCOL_SOCKET;
|
|
}
|
|
#elif defined(__WIN__)
|
|
if (!net->vio &&
|
|
(mysql->options.protocol == MYSQL_PROTOCOL_PIPE ||
|
|
(host && !strcmp(host,LOCAL_HOST_NAMEDPIPE)) ||
|
|
(! have_tcpip && (unix_socket || !host && is_NT()))))
|
|
{
|
|
sock=0;
|
|
if ((hPipe= create_named_pipe(mysql, mysql->options.connect_timeout,
|
|
(char**) &host, (char**) &unix_socket)) ==
|
|
INVALID_HANDLE_VALUE)
|
|
{
|
|
DBUG_PRINT("error",
|
|
("host: '%s' socket: '%s' have_tcpip: %d",
|
|
host ? host : "<null>",
|
|
unix_socket ? unix_socket : "<null>",
|
|
(int) have_tcpip));
|
|
if (mysql->options.protocol == MYSQL_PROTOCOL_PIPE ||
|
|
(host && !strcmp(host,LOCAL_HOST_NAMEDPIPE)) ||
|
|
(unix_socket && !strcmp(unix_socket,MYSQL_NAMEDPIPE)))
|
|
goto error;
|
|
/* Try also with TCP/IP */
|
|
}
|
|
else
|
|
{
|
|
net->vio=vio_new_win32pipe(hPipe);
|
|
my_snprintf(host_info=buff, sizeof(buff)-1,
|
|
ER(CR_NAMEDPIPE_CONNECTION), unix_socket);
|
|
}
|
|
}
|
|
#endif
|
|
if (!net->vio &&
|
|
(!mysql->options.protocol ||
|
|
mysql->options.protocol == MYSQL_PROTOCOL_TCP))
|
|
{
|
|
unix_socket=0; /* This is not used */
|
|
if (!port)
|
|
port=mysql_port;
|
|
if (!host)
|
|
host=LOCAL_HOST;
|
|
my_snprintf(host_info=buff,sizeof(buff)-1,ER(CR_TCP_CONNECTION),host);
|
|
DBUG_PRINT("info",("Server name: '%s'. TCP sock: %d", host,port));
|
|
#ifdef MYSQL_SERVER
|
|
thr_alarm_init(&alarmed);
|
|
thr_alarm(&alarmed, mysql->options.connect_timeout, &alarm_buff);
|
|
#endif
|
|
/* _WIN64 ; Assume that the (int) range is enough for socket() */
|
|
sock = (my_socket) socket(AF_INET,SOCK_STREAM,0);
|
|
#ifdef MYSQL_SERVER
|
|
thr_end_alarm(&alarmed);
|
|
#endif
|
|
if (sock == SOCKET_ERROR)
|
|
{
|
|
set_mysql_extended_error(mysql, CR_IPSOCK_ERROR, unknown_sqlstate,
|
|
ER(CR_IPSOCK_ERROR), socket_errno);
|
|
goto error;
|
|
}
|
|
net->vio= vio_new(sock, VIO_TYPE_TCPIP, VIO_BUFFERED_READ);
|
|
bzero((char*) &sock_addr,sizeof(sock_addr));
|
|
sock_addr.sin_family = AF_INET;
|
|
|
|
/*
|
|
The server name may be a host name or IP address
|
|
*/
|
|
|
|
if ((int) (ip_addr = inet_addr(host)) != (int) INADDR_NONE)
|
|
{
|
|
memcpy_fixed(&sock_addr.sin_addr,&ip_addr,sizeof(ip_addr));
|
|
}
|
|
else
|
|
{
|
|
int tmp_errno;
|
|
struct hostent tmp_hostent,*hp;
|
|
char buff2[GETHOSTBYNAME_BUFF_SIZE];
|
|
hp = my_gethostbyname_r(host,&tmp_hostent,buff2,sizeof(buff2),
|
|
&tmp_errno);
|
|
if (!hp)
|
|
{
|
|
my_gethostbyname_r_free();
|
|
set_mysql_extended_error(mysql, CR_UNKNOWN_HOST, unknown_sqlstate,
|
|
ER(CR_UNKNOWN_HOST), host, tmp_errno);
|
|
goto error;
|
|
}
|
|
memcpy(&sock_addr.sin_addr, hp->h_addr,
|
|
min(sizeof(sock_addr.sin_addr), (size_t) hp->h_length));
|
|
my_gethostbyname_r_free();
|
|
}
|
|
sock_addr.sin_port = (ushort) htons((ushort) port);
|
|
if (my_connect(sock,(struct sockaddr *) &sock_addr, sizeof(sock_addr),
|
|
mysql->options.connect_timeout))
|
|
{
|
|
DBUG_PRINT("error",("Got error %d on connect to '%s'",socket_errno,
|
|
host));
|
|
set_mysql_extended_error(mysql, CR_CONN_HOST_ERROR, unknown_sqlstate,
|
|
ER(CR_CONN_HOST_ERROR), host, socket_errno);
|
|
goto error;
|
|
}
|
|
}
|
|
if (!net->vio)
|
|
{
|
|
DBUG_PRINT("error",("Unknow protocol %d ",mysql->options.protocol));
|
|
set_mysql_error(mysql, CR_CONN_UNKNOW_PROTOCOL, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
|
|
if (my_net_init(net, net->vio))
|
|
{
|
|
vio_delete(net->vio);
|
|
net->vio = 0;
|
|
set_mysql_error(mysql, CR_OUT_OF_MEMORY, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
vio_keepalive(net->vio,TRUE);
|
|
|
|
/* If user set read_timeout, let it override the default */
|
|
if (mysql->options.read_timeout)
|
|
my_net_set_read_timeout(net, mysql->options.read_timeout);
|
|
|
|
/* If user set write_timeout, let it override the default */
|
|
if (mysql->options.write_timeout)
|
|
my_net_set_write_timeout(net, mysql->options.write_timeout);
|
|
|
|
if (mysql->options.max_allowed_packet)
|
|
net->max_packet_size= mysql->options.max_allowed_packet;
|
|
|
|
/* Get version info */
|
|
mysql->protocol_version= PROTOCOL_VERSION; /* Assume this */
|
|
if (mysql->options.connect_timeout &&
|
|
vio_poll_read(net->vio, mysql->options.connect_timeout))
|
|
{
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"waiting for initial communication packet",
|
|
errno);
|
|
goto error;
|
|
}
|
|
|
|
/*
|
|
Part 1: Connection established, read and parse first packet
|
|
*/
|
|
|
|
if ((pkt_length=cli_safe_read(mysql)) == packet_error)
|
|
{
|
|
if (mysql->net.client_last_errno == CR_SERVER_LOST)
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"reading initial communication packet",
|
|
errno);
|
|
goto error;
|
|
}
|
|
/* Check if version of protocol matches current one */
|
|
|
|
mysql->protocol_version= net->read_pos[0];
|
|
DBUG_DUMP("packet",(char*) net->read_pos,10);
|
|
DBUG_PRINT("info",("mysql protocol version %d, server=%d",
|
|
PROTOCOL_VERSION, mysql->protocol_version));
|
|
if (mysql->protocol_version != PROTOCOL_VERSION)
|
|
{
|
|
set_mysql_extended_error(mysql, CR_VERSION_ERROR, unknown_sqlstate,
|
|
ER(CR_VERSION_ERROR), mysql->protocol_version,
|
|
PROTOCOL_VERSION);
|
|
goto error;
|
|
}
|
|
end=strend((char*) net->read_pos+1);
|
|
mysql->thread_id=uint4korr(end+1);
|
|
end+=5;
|
|
/*
|
|
Scramble is split into two parts because old clients does not understand
|
|
long scrambles; here goes the first part.
|
|
*/
|
|
strmake(mysql->scramble, end, SCRAMBLE_LENGTH_323);
|
|
end+= SCRAMBLE_LENGTH_323+1;
|
|
|
|
if (pkt_length >= (uint) (end+1 - (char*) net->read_pos))
|
|
mysql->server_capabilities=uint2korr(end);
|
|
if (pkt_length >= (uint) (end+18 - (char*) net->read_pos))
|
|
{
|
|
/* New protocol with 16 bytes to describe server characteristics */
|
|
mysql->server_language=end[2];
|
|
mysql->server_status=uint2korr(end+3);
|
|
}
|
|
end+= 18;
|
|
if (pkt_length >= (uint) (end + SCRAMBLE_LENGTH - SCRAMBLE_LENGTH_323 + 1 -
|
|
(char *) net->read_pos))
|
|
strmake(mysql->scramble+SCRAMBLE_LENGTH_323, end,
|
|
SCRAMBLE_LENGTH-SCRAMBLE_LENGTH_323);
|
|
else
|
|
mysql->server_capabilities&= ~CLIENT_SECURE_CONNECTION;
|
|
|
|
if (mysql->options.secure_auth && passwd[0] &&
|
|
!(mysql->server_capabilities & CLIENT_SECURE_CONNECTION))
|
|
{
|
|
set_mysql_error(mysql, CR_SECURE_AUTH, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
|
|
if (mysql_init_character_set(mysql))
|
|
goto error;
|
|
|
|
/* Save connection information */
|
|
if (!my_multi_malloc(MYF(0),
|
|
&mysql->host_info, (uint) strlen(host_info)+1,
|
|
&mysql->host, (uint) strlen(host)+1,
|
|
&mysql->unix_socket,unix_socket ?
|
|
(uint) strlen(unix_socket)+1 : (uint) 1,
|
|
&mysql->server_version,
|
|
(uint) (end - (char*) net->read_pos),
|
|
NullS) ||
|
|
!(mysql->user=my_strdup(user,MYF(0))) ||
|
|
!(mysql->passwd=my_strdup(passwd,MYF(0))))
|
|
{
|
|
set_mysql_error(mysql, CR_OUT_OF_MEMORY, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
strmov(mysql->host_info,host_info);
|
|
strmov(mysql->host,host);
|
|
if (unix_socket)
|
|
strmov(mysql->unix_socket,unix_socket);
|
|
else
|
|
mysql->unix_socket=0;
|
|
strmov(mysql->server_version,(char*) net->read_pos+1);
|
|
mysql->port=port;
|
|
|
|
/*
|
|
Part 2: format and send client info to the server for access check
|
|
*/
|
|
|
|
client_flag|=mysql->options.client_flag;
|
|
client_flag|=CLIENT_CAPABILITIES;
|
|
if (client_flag & CLIENT_MULTI_STATEMENTS)
|
|
client_flag|= CLIENT_MULTI_RESULTS;
|
|
|
|
#ifdef HAVE_OPENSSL
|
|
if (mysql->options.ssl_key || mysql->options.ssl_cert ||
|
|
mysql->options.ssl_ca || mysql->options.ssl_capath ||
|
|
mysql->options.ssl_cipher)
|
|
mysql->options.use_ssl= 1;
|
|
if (mysql->options.use_ssl)
|
|
client_flag|=CLIENT_SSL;
|
|
#endif /* HAVE_OPENSSL */
|
|
if (db)
|
|
client_flag|=CLIENT_CONNECT_WITH_DB;
|
|
|
|
/* Remove options that server doesn't support */
|
|
client_flag= ((client_flag &
|
|
~(CLIENT_COMPRESS | CLIENT_SSL | CLIENT_PROTOCOL_41)) |
|
|
(client_flag & mysql->server_capabilities));
|
|
#ifndef HAVE_COMPRESS
|
|
client_flag&= ~CLIENT_COMPRESS;
|
|
#endif
|
|
|
|
if (client_flag & CLIENT_PROTOCOL_41)
|
|
{
|
|
/* 4.1 server and 4.1 client has a 32 byte option flag */
|
|
int4store(buff,client_flag);
|
|
int4store(buff+4, net->max_packet_size);
|
|
buff[8]= (char) mysql->charset->number;
|
|
bzero(buff+9, 32-9);
|
|
end= buff+32;
|
|
}
|
|
else
|
|
{
|
|
int2store(buff,client_flag);
|
|
int3store(buff+2,net->max_packet_size);
|
|
end= buff+5;
|
|
}
|
|
mysql->client_flag=client_flag;
|
|
|
|
#ifdef HAVE_OPENSSL
|
|
if (client_flag & CLIENT_SSL)
|
|
{
|
|
/* Do the SSL layering. */
|
|
struct st_mysql_options *options= &mysql->options;
|
|
struct st_VioSSLFd *ssl_fd;
|
|
|
|
/*
|
|
Send client_flag, max_packet_size - unencrypted otherwise
|
|
the server does not know we want to do SSL
|
|
*/
|
|
if (my_net_write(net,buff,(uint) (end-buff)) || net_flush(net))
|
|
{
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"sending connection information to server",
|
|
errno);
|
|
goto error;
|
|
}
|
|
|
|
/* Create the VioSSLConnectorFd - init SSL and load certs */
|
|
if (!(ssl_fd= new_VioSSLConnectorFd(options->ssl_key,
|
|
options->ssl_cert,
|
|
options->ssl_ca,
|
|
options->ssl_capath,
|
|
options->ssl_cipher)))
|
|
{
|
|
set_mysql_error(mysql, CR_SSL_CONNECTION_ERROR, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
mysql->connector_fd= (void*)ssl_fd;
|
|
|
|
/* Connect to the server */
|
|
DBUG_PRINT("info", ("IO layer change in progress..."));
|
|
if (sslconnect(ssl_fd, mysql->net.vio,
|
|
(long) (mysql->options.connect_timeout)))
|
|
{
|
|
set_mysql_error(mysql, CR_SSL_CONNECTION_ERROR, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
DBUG_PRINT("info", ("IO layer change done!"));
|
|
|
|
/* Verify server cert */
|
|
if ((client_flag & CLIENT_SSL_VERIFY_SERVER_CERT) &&
|
|
ssl_verify_server_cert(mysql->net.vio, mysql->host))
|
|
{
|
|
set_mysql_error(mysql, CR_SSL_CONNECTION_ERROR, unknown_sqlstate);
|
|
goto error;
|
|
}
|
|
|
|
}
|
|
#endif /* HAVE_OPENSSL */
|
|
|
|
DBUG_PRINT("info",("Server version = '%s' capabilites: %lu status: %u client_flag: %lu",
|
|
mysql->server_version,mysql->server_capabilities,
|
|
mysql->server_status, client_flag));
|
|
/* This needs to be changed as it's not useful with big packets */
|
|
if (user && user[0])
|
|
strmake(end,user,USERNAME_LENGTH); /* Max user name */
|
|
else
|
|
read_user_name((char*) end);
|
|
|
|
/* We have to handle different version of handshake here */
|
|
#ifdef _CUSTOMCONFIG_
|
|
#include "_cust_libmysql.h"
|
|
#endif
|
|
DBUG_PRINT("info",("user: %s",end));
|
|
end= strend(end) + 1;
|
|
if (passwd[0])
|
|
{
|
|
if (mysql->server_capabilities & CLIENT_SECURE_CONNECTION)
|
|
{
|
|
*end++= SCRAMBLE_LENGTH;
|
|
scramble(end, mysql->scramble, passwd);
|
|
end+= SCRAMBLE_LENGTH;
|
|
}
|
|
else
|
|
{
|
|
scramble_323(end, mysql->scramble, passwd);
|
|
end+= SCRAMBLE_LENGTH_323 + 1;
|
|
}
|
|
}
|
|
else
|
|
*end++= '\0'; /* empty password */
|
|
|
|
/* Add database if needed */
|
|
if (db && (mysql->server_capabilities & CLIENT_CONNECT_WITH_DB))
|
|
{
|
|
end= strmake(end, db, NAME_LEN) + 1;
|
|
mysql->db= my_strdup(db,MYF(MY_WME));
|
|
db= 0;
|
|
}
|
|
/* Write authentication package */
|
|
if (my_net_write(net, (uchar*) buff, (size_t) (end-buff)) || net_flush(net))
|
|
{
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"sending authentication information",
|
|
errno);
|
|
goto error;
|
|
}
|
|
|
|
/*
|
|
Part 3: Authorization data's been sent. Now server can reply with
|
|
OK-packet, or re-request scrambled password.
|
|
*/
|
|
|
|
if ((pkt_length=cli_safe_read(mysql)) == packet_error)
|
|
{
|
|
if (mysql->net.client_last_errno == CR_SERVER_LOST)
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"reading authorization packet",
|
|
errno);
|
|
goto error;
|
|
}
|
|
|
|
if (pkt_length == 1 && net->read_pos[0] == 254 &&
|
|
mysql->server_capabilities & CLIENT_SECURE_CONNECTION)
|
|
{
|
|
/*
|
|
By sending this very specific reply server asks us to send scrambled
|
|
password in old format.
|
|
*/
|
|
scramble_323(buff, mysql->scramble, passwd);
|
|
if (my_net_write(net, (uchar*) buff, SCRAMBLE_LENGTH_323 + 1) ||
|
|
net_flush(net))
|
|
{
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"sending password information",
|
|
errno);
|
|
goto error;
|
|
}
|
|
/* Read what server thinks about out new auth message report */
|
|
if (cli_safe_read(mysql) == packet_error)
|
|
{
|
|
if (mysql->net.client_last_errno == CR_SERVER_LOST)
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"reading final connect information",
|
|
errno);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (client_flag & CLIENT_COMPRESS) /* We will use compression */
|
|
net->compress=1;
|
|
|
|
#ifdef CHECK_LICENSE
|
|
if (check_license(mysql))
|
|
goto error;
|
|
#endif
|
|
|
|
if (db && mysql_select_db(mysql, db))
|
|
{
|
|
if (mysql->net.client_last_errno == CR_SERVER_LOST)
|
|
set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
|
|
ER(CR_SERVER_LOST_EXTENDED),
|
|
"Setting intital database",
|
|
errno);
|
|
goto error;
|
|
}
|
|
|
|
if (mysql->options.init_commands)
|
|
{
|
|
DYNAMIC_ARRAY *init_commands= mysql->options.init_commands;
|
|
char **ptr= (char**)init_commands->buffer;
|
|
char **end_command= ptr + init_commands->elements;
|
|
|
|
my_bool reconnect=mysql->reconnect;
|
|
mysql->reconnect=0;
|
|
|
|
for (; ptr < end_command; ptr++)
|
|
{
|
|
MYSQL_RES *res;
|
|
if (mysql_real_query(mysql,*ptr, (ulong) strlen(*ptr)))
|
|
goto error;
|
|
if (mysql->fields)
|
|
{
|
|
if (!(res= cli_use_result(mysql)))
|
|
goto error;
|
|
mysql_free_result(res);
|
|
}
|
|
}
|
|
mysql->reconnect=reconnect;
|
|
}
|
|
|
|
#ifndef TO_BE_DELETED
|
|
if (mysql->options.rpl_probe && mysql_rpl_probe(mysql))
|
|
goto error;
|
|
#endif
|
|
|
|
DBUG_PRINT("exit", ("Mysql handler: 0x%lx", (long) mysql));
|
|
reset_sigpipe(mysql);
|
|
DBUG_RETURN(mysql);
|
|
|
|
error:
|
|
reset_sigpipe(mysql);
|
|
DBUG_PRINT("error",("message: %u/%s (%s)",
|
|
net->client_last_errno,
|
|
net->sqlstate,
|
|
net->client_last_error));
|
|
{
|
|
/* Free alloced memory */
|
|
end_server(mysql);
|
|
mysql_close_free(mysql);
|
|
if (!(((ulong) client_flag) & CLIENT_REMEMBER_OPTIONS))
|
|
mysql_close_free_options(mysql);
|
|
}
|
|
DBUG_RETURN(0);
|
|
}
|
|
|
|
|
|
/* needed when we move MYSQL structure to a different address */
|
|
|
|
#ifndef TO_BE_DELETED
|
|
static void mysql_fix_pointers(MYSQL* mysql, MYSQL* old_mysql)
|
|
{
|
|
MYSQL *tmp, *tmp_prev;
|
|
if (mysql->master == old_mysql)
|
|
mysql->master= mysql;
|
|
if (mysql->last_used_con == old_mysql)
|
|
mysql->last_used_con= mysql;
|
|
if (mysql->last_used_slave == old_mysql)
|
|
mysql->last_used_slave= mysql;
|
|
for (tmp_prev = mysql, tmp = mysql->next_slave;
|
|
tmp != old_mysql;tmp = tmp->next_slave)
|
|
{
|
|
tmp_prev= tmp;
|
|
}
|
|
tmp_prev->next_slave= mysql;
|
|
}
|
|
#endif
|
|
|
|
|
|
my_bool mysql_reconnect(MYSQL *mysql)
|
|
{
|
|
MYSQL tmp_mysql;
|
|
DBUG_ENTER("mysql_reconnect");
|
|
DBUG_ASSERT(mysql);
|
|
DBUG_PRINT("enter", ("mysql->reconnect: %d", mysql->reconnect));
|
|
|
|
if (!mysql->reconnect ||
|
|
(mysql->server_status & SERVER_STATUS_IN_TRANS) || !mysql->host_info)
|
|
{
|
|
/* Allow reconnect next time */
|
|
mysql->server_status&= ~SERVER_STATUS_IN_TRANS;
|
|
set_mysql_error(mysql, CR_SERVER_GONE_ERROR, unknown_sqlstate);
|
|
DBUG_RETURN(1);
|
|
}
|
|
mysql_init(&tmp_mysql);
|
|
tmp_mysql.options= mysql->options;
|
|
tmp_mysql.options.my_cnf_file= tmp_mysql.options.my_cnf_group= 0;
|
|
tmp_mysql.rpl_pivot= mysql->rpl_pivot;
|
|
|
|
if (!mysql_real_connect(&tmp_mysql,mysql->host,mysql->user,mysql->passwd,
|
|
mysql->db, mysql->port, mysql->unix_socket,
|
|
mysql->client_flag | CLIENT_REMEMBER_OPTIONS))
|
|
{
|
|
mysql->net.client_last_errno= tmp_mysql.net.client_last_errno;
|
|
strmov(mysql->net.client_last_error, tmp_mysql.net.client_last_error);
|
|
strmov(mysql->net.sqlstate, tmp_mysql.net.sqlstate);
|
|
DBUG_RETURN(1);
|
|
}
|
|
if (mysql_set_character_set(&tmp_mysql, mysql->charset->csname))
|
|
{
|
|
DBUG_PRINT("error", ("mysql_set_character_set() failed"));
|
|
bzero((char*) &tmp_mysql.options,sizeof(tmp_mysql.options));
|
|
mysql_close(&tmp_mysql);
|
|
mysql->net.client_last_errno= tmp_mysql.net.client_last_errno;
|
|
strmov(mysql->net.client_last_error, tmp_mysql.net.client_last_error);
|
|
strmov(mysql->net.sqlstate, tmp_mysql.net.sqlstate);
|
|
DBUG_RETURN(1);
|
|
}
|
|
|
|
DBUG_PRINT("info", ("reconnect succeded"));
|
|
tmp_mysql.reconnect= 1;
|
|
tmp_mysql.free_me= mysql->free_me;
|
|
|
|
/*
|
|
For each stmt in mysql->stmts, move it to tmp_mysql if it is
|
|
in state MYSQL_STMT_INIT_DONE, otherwise close it.
|
|
*/
|
|
{
|
|
LIST *element= mysql->stmts;
|
|
for (; element; element= element->next)
|
|
{
|
|
MYSQL_STMT *stmt= (MYSQL_STMT *) element->data;
|
|
if (stmt->state != MYSQL_STMT_INIT_DONE)
|
|
{
|
|
stmt->mysql= 0;
|
|
}
|
|
else
|
|
{
|
|
tmp_mysql.stmts= list_add(tmp_mysql.stmts, &stmt->list);
|
|
}
|
|
/* No need to call list_delete for statement here */
|
|
}
|
|
mysql->stmts= NULL;
|
|
}
|
|
|
|
/* Don't free options as these are now used in tmp_mysql */
|
|
bzero((char*) &mysql->options,sizeof(mysql->options));
|
|
mysql->free_me=0;
|
|
mysql_close(mysql);
|
|
*mysql=tmp_mysql;
|
|
mysql_fix_pointers(mysql, &tmp_mysql); /* adjust connection pointers */
|
|
net_clear(&mysql->net, 1);
|
|
mysql->affected_rows= ~(my_ulonglong) 0;
|
|
DBUG_RETURN(0);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
Set current database
|
|
**************************************************************************/
|
|
|
|
int STDCALL
|
|
mysql_select_db(MYSQL *mysql, const char *db)
|
|
{
|
|
int error;
|
|
DBUG_ENTER("mysql_select_db");
|
|
DBUG_PRINT("enter",("db: '%s'",db));
|
|
|
|
if ((error=simple_command(mysql,COM_INIT_DB, (const uchar*) db,
|
|
(ulong) strlen(db),0)))
|
|
DBUG_RETURN(error);
|
|
my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->db=my_strdup(db,MYF(MY_WME));
|
|
DBUG_RETURN(0);
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
Send a QUIT to the server and close the connection
|
|
If handle is alloced by mysql connect free it.
|
|
*************************************************************************/
|
|
|
|
static void mysql_close_free_options(MYSQL *mysql)
|
|
{
|
|
DBUG_ENTER("mysql_close_free_options");
|
|
|
|
my_free(mysql->options.user,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.host,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.password,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.unix_socket,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.db,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.charset_dir,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.charset_name,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->options.client_ip,MYF(MY_ALLOW_ZERO_PTR));
|
|
if (mysql->options.init_commands)
|
|
{
|
|
DYNAMIC_ARRAY *init_commands= mysql->options.init_commands;
|
|
char **ptr= (char**)init_commands->buffer;
|
|
char **end= ptr + init_commands->elements;
|
|
for (; ptr<end; ptr++)
|
|
my_free(*ptr,MYF(MY_WME));
|
|
delete_dynamic(init_commands);
|
|
my_free((char*)init_commands,MYF(MY_WME));
|
|
}
|
|
#ifdef HAVE_OPENSSL
|
|
mysql_ssl_free(mysql);
|
|
#endif /* HAVE_OPENSSL */
|
|
#ifdef HAVE_SMEM
|
|
if (mysql->options.shared_memory_base_name != def_shared_memory_base_name)
|
|
my_free(mysql->options.shared_memory_base_name,MYF(MY_ALLOW_ZERO_PTR));
|
|
#endif /* HAVE_SMEM */
|
|
bzero((char*) &mysql->options,sizeof(mysql->options));
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
|
|
static void mysql_close_free(MYSQL *mysql)
|
|
{
|
|
my_free((uchar*) mysql->host_info,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->user,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->passwd,MYF(MY_ALLOW_ZERO_PTR));
|
|
my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
|
|
#if defined(EMBEDDED_LIBRARY) || MYSQL_VERSION_ID >= 50100
|
|
my_free(mysql->info_buffer,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->info_buffer= 0;
|
|
#endif
|
|
/* Clear pointers for better safety */
|
|
mysql->host_info= mysql->user= mysql->passwd= mysql->db= 0;
|
|
}
|
|
|
|
|
|
/*
|
|
Clear connection pointer of every statement: this is necessary
|
|
to give error on attempt to use a prepared statement of closed
|
|
connection.
|
|
|
|
SYNOPSYS
|
|
mysql_detach_stmt_list()
|
|
stmt_list pointer to mysql->stmts
|
|
func_name name of calling function
|
|
|
|
NOTE
|
|
There is similar code in mysql_reconnect(), so changes here
|
|
should also be reflected there.
|
|
*/
|
|
|
|
void mysql_detach_stmt_list(LIST **stmt_list __attribute__((unused)),
|
|
const char *func_name __attribute__((unused)))
|
|
{
|
|
#ifdef MYSQL_CLIENT
|
|
/* Reset connection handle in all prepared statements. */
|
|
LIST *element= *stmt_list;
|
|
char buff[MYSQL_ERRMSG_SIZE];
|
|
DBUG_ENTER("mysql_detach_stmt_list");
|
|
|
|
my_snprintf(buff, sizeof(buff)-1, ER(CR_STMT_CLOSED), func_name);
|
|
for (; element; element= element->next)
|
|
{
|
|
MYSQL_STMT *stmt= (MYSQL_STMT *) element->data;
|
|
set_stmt_error(stmt, CR_STMT_CLOSED, unknown_sqlstate, buff);
|
|
stmt->mysql= 0;
|
|
/* No need to call list_delete for statement here */
|
|
}
|
|
*stmt_list= 0;
|
|
DBUG_VOID_RETURN;
|
|
#endif /* MYSQL_CLIENT */
|
|
}
|
|
|
|
|
|
void STDCALL mysql_close(MYSQL *mysql)
|
|
{
|
|
DBUG_ENTER("mysql_close");
|
|
if (mysql) /* Some simple safety */
|
|
{
|
|
/* If connection is still up, send a QUIT message */
|
|
if (mysql->net.vio != 0)
|
|
{
|
|
free_old_query(mysql);
|
|
mysql->status=MYSQL_STATUS_READY; /* Force command */
|
|
mysql->reconnect=0;
|
|
simple_command(mysql,COM_QUIT,(uchar*) 0,0,1);
|
|
end_server(mysql); /* Sets mysql->net.vio= 0 */
|
|
}
|
|
mysql_close_free_options(mysql);
|
|
mysql_close_free(mysql);
|
|
mysql_detach_stmt_list(&mysql->stmts, "mysql_close");
|
|
#ifndef TO_BE_DELETED
|
|
/* free/close slave list */
|
|
if (mysql->rpl_pivot)
|
|
{
|
|
MYSQL* tmp;
|
|
for (tmp = mysql->next_slave; tmp != mysql; )
|
|
{
|
|
/* trick to avoid following freed pointer */
|
|
MYSQL* tmp1 = tmp->next_slave;
|
|
mysql_close(tmp);
|
|
tmp = tmp1;
|
|
}
|
|
mysql->rpl_pivot=0;
|
|
}
|
|
#endif
|
|
if (mysql != mysql->master)
|
|
mysql_close(mysql->master);
|
|
#ifndef MYSQL_SERVER
|
|
if (mysql->thd)
|
|
(*mysql->methods->free_embedded_thd)(mysql);
|
|
#endif
|
|
if (mysql->free_me)
|
|
my_free((uchar*) mysql,MYF(0));
|
|
}
|
|
DBUG_VOID_RETURN;
|
|
}
|
|
|
|
|
|
static my_bool cli_read_query_result(MYSQL *mysql)
|
|
{
|
|
uchar *pos;
|
|
ulong field_count;
|
|
MYSQL_DATA *fields;
|
|
ulong length;
|
|
DBUG_ENTER("cli_read_query_result");
|
|
|
|
/*
|
|
Read from the connection which we actually used, which
|
|
could differ from the original connection if we have slaves
|
|
*/
|
|
mysql = mysql->last_used_con;
|
|
|
|
if ((length = cli_safe_read(mysql)) == packet_error)
|
|
DBUG_RETURN(1);
|
|
free_old_query(mysql); /* Free old result */
|
|
#ifdef MYSQL_CLIENT /* Avoid warn of unused labels*/
|
|
get_info:
|
|
#endif
|
|
pos=(uchar*) mysql->net.read_pos;
|
|
if ((field_count= net_field_length(&pos)) == 0)
|
|
{
|
|
mysql->affected_rows= net_field_length_ll(&pos);
|
|
mysql->insert_id= net_field_length_ll(&pos);
|
|
DBUG_PRINT("info",("affected_rows: %lu insert_id: %lu",
|
|
(ulong) mysql->affected_rows,
|
|
(ulong) mysql->insert_id));
|
|
if (protocol_41(mysql))
|
|
{
|
|
mysql->server_status=uint2korr(pos); pos+=2;
|
|
mysql->warning_count=uint2korr(pos); pos+=2;
|
|
}
|
|
else if (mysql->server_capabilities & CLIENT_TRANSACTIONS)
|
|
{
|
|
/* MySQL 4.0 protocol */
|
|
mysql->server_status=uint2korr(pos); pos+=2;
|
|
mysql->warning_count= 0;
|
|
}
|
|
DBUG_PRINT("info",("status: %u warning_count: %u",
|
|
mysql->server_status, mysql->warning_count));
|
|
if (pos < mysql->net.read_pos+length && net_field_length(&pos))
|
|
mysql->info=(char*) pos;
|
|
DBUG_RETURN(0);
|
|
}
|
|
#ifdef MYSQL_CLIENT
|
|
if (field_count == NULL_LENGTH) /* LOAD DATA LOCAL INFILE */
|
|
{
|
|
int error=handle_local_infile(mysql,(char*) pos);
|
|
if ((length= cli_safe_read(mysql)) == packet_error || error)
|
|
DBUG_RETURN(1);
|
|
goto get_info; /* Get info packet */
|
|
}
|
|
#endif
|
|
if (!(mysql->server_status & SERVER_STATUS_AUTOCOMMIT))
|
|
mysql->server_status|= SERVER_STATUS_IN_TRANS;
|
|
|
|
if (!(fields=cli_read_rows(mysql,(MYSQL_FIELD*)0, protocol_41(mysql) ? 7:5)))
|
|
DBUG_RETURN(1);
|
|
if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc,
|
|
(uint) field_count,0,
|
|
mysql->server_capabilities)))
|
|
DBUG_RETURN(1);
|
|
mysql->status= MYSQL_STATUS_GET_RESULT;
|
|
mysql->field_count= (uint) field_count;
|
|
DBUG_PRINT("exit",("ok"));
|
|
DBUG_RETURN(0);
|
|
}
|
|
|
|
|
|
/*
|
|
Send the query and return so we can do something else.
|
|
Needs to be followed by mysql_read_query_result() when we want to
|
|
finish processing it.
|
|
*/
|
|
|
|
int STDCALL
|
|
mysql_send_query(MYSQL* mysql, const char* query, ulong length)
|
|
{
|
|
DBUG_ENTER("mysql_send_query");
|
|
DBUG_PRINT("enter",("rpl_parse: %d rpl_pivot: %d",
|
|
mysql->options.rpl_parse, mysql->rpl_pivot));
|
|
#ifndef TO_BE_DELETED
|
|
if (mysql->options.rpl_parse && mysql->rpl_pivot)
|
|
{
|
|
switch (mysql_rpl_query_type(query, length)) {
|
|
case MYSQL_RPL_MASTER:
|
|
DBUG_RETURN(mysql_master_send_query(mysql, query, length));
|
|
case MYSQL_RPL_SLAVE:
|
|
DBUG_RETURN(mysql_slave_send_query(mysql, query, length));
|
|
case MYSQL_RPL_ADMIN:
|
|
break; /* fall through */
|
|
}
|
|
}
|
|
mysql->last_used_con = mysql;
|
|
#endif
|
|
|
|
DBUG_RETURN(simple_command(mysql, COM_QUERY, (uchar*) query, length, 1));
|
|
}
|
|
|
|
|
|
int STDCALL
|
|
mysql_real_query(MYSQL *mysql, const char *query, ulong length)
|
|
{
|
|
DBUG_ENTER("mysql_real_query");
|
|
DBUG_PRINT("enter",("handle: 0x%lx", (long) mysql));
|
|
DBUG_PRINT("query",("Query = '%-.4096s'",query));
|
|
|
|
if (mysql_send_query(mysql,query,length))
|
|
DBUG_RETURN(1);
|
|
DBUG_RETURN((int) (*mysql->methods->read_query_result)(mysql));
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
Alloc result struct for buffered results. All rows are read to buffer.
|
|
mysql_data_seek may be used.
|
|
**************************************************************************/
|
|
|
|
MYSQL_RES * STDCALL mysql_store_result(MYSQL *mysql)
|
|
{
|
|
MYSQL_RES *result;
|
|
DBUG_ENTER("mysql_store_result");
|
|
/* read from the actually used connection */
|
|
mysql = mysql->last_used_con;
|
|
if (!mysql->fields)
|
|
DBUG_RETURN(0);
|
|
if (mysql->status != MYSQL_STATUS_GET_RESULT)
|
|
{
|
|
set_mysql_error(mysql, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
|
|
DBUG_RETURN(0);
|
|
}
|
|
mysql->status=MYSQL_STATUS_READY; /* server is ready */
|
|
if (!(result=(MYSQL_RES*) my_malloc((uint) (sizeof(MYSQL_RES)+
|
|
sizeof(ulong) *
|
|
mysql->field_count),
|
|
MYF(MY_WME | MY_ZEROFILL))))
|
|
{
|
|
set_mysql_error(mysql, CR_OUT_OF_MEMORY, unknown_sqlstate);
|
|
DBUG_RETURN(0);
|
|
}
|
|
result->methods= mysql->methods;
|
|
result->eof=1; /* Marker for buffered */
|
|
result->lengths=(ulong*) (result+1);
|
|
if (!(result->data=
|
|
(*mysql->methods->read_rows)(mysql,mysql->fields,mysql->field_count)))
|
|
{
|
|
my_free((uchar*) result,MYF(0));
|
|
DBUG_RETURN(0);
|
|
}
|
|
mysql->affected_rows= result->row_count= result->data->rows;
|
|
result->data_cursor= result->data->data;
|
|
result->fields= mysql->fields;
|
|
result->field_alloc= mysql->field_alloc;
|
|
result->field_count= mysql->field_count;
|
|
/* The rest of result members is bzeroed in malloc */
|
|
mysql->fields=0; /* fields is now in result */
|
|
clear_alloc_root(&mysql->field_alloc);
|
|
/* just in case this was mistakenly called after mysql_stmt_execute() */
|
|
mysql->unbuffered_fetch_owner= 0;
|
|
DBUG_RETURN(result); /* Data fetched */
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
Alloc struct for use with unbuffered reads. Data is fetched by domand
|
|
when calling to mysql_fetch_row.
|
|
mysql_data_seek is a noop.
|
|
|
|
No other queries may be specified with the same MYSQL handle.
|
|
There shouldn't be much processing per row because mysql server shouldn't
|
|
have to wait for the client (and will not wait more than 30 sec/packet).
|
|
**************************************************************************/
|
|
|
|
static MYSQL_RES * cli_use_result(MYSQL *mysql)
|
|
{
|
|
MYSQL_RES *result;
|
|
DBUG_ENTER("cli_use_result");
|
|
|
|
mysql = mysql->last_used_con;
|
|
|
|
if (!mysql->fields)
|
|
DBUG_RETURN(0);
|
|
if (mysql->status != MYSQL_STATUS_GET_RESULT)
|
|
{
|
|
set_mysql_error(mysql, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
|
|
DBUG_RETURN(0);
|
|
}
|
|
if (!(result=(MYSQL_RES*) my_malloc(sizeof(*result)+
|
|
sizeof(ulong)*mysql->field_count,
|
|
MYF(MY_WME | MY_ZEROFILL))))
|
|
DBUG_RETURN(0);
|
|
result->lengths=(ulong*) (result+1);
|
|
result->methods= mysql->methods;
|
|
if (!(result->row=(MYSQL_ROW)
|
|
my_malloc(sizeof(result->row[0])*(mysql->field_count+1), MYF(MY_WME))))
|
|
{ /* Ptrs: to one row */
|
|
my_free((uchar*) result,MYF(0));
|
|
DBUG_RETURN(0);
|
|
}
|
|
result->fields= mysql->fields;
|
|
result->field_alloc= mysql->field_alloc;
|
|
result->field_count= mysql->field_count;
|
|
result->current_field=0;
|
|
result->handle= mysql;
|
|
result->current_row= 0;
|
|
mysql->fields=0; /* fields is now in result */
|
|
clear_alloc_root(&mysql->field_alloc);
|
|
mysql->status=MYSQL_STATUS_USE_RESULT;
|
|
mysql->unbuffered_fetch_owner= &result->unbuffered_fetch_cancelled;
|
|
DBUG_RETURN(result); /* Data is read to be fetched */
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
Return next row of the query results
|
|
**************************************************************************/
|
|
|
|
MYSQL_ROW STDCALL
|
|
mysql_fetch_row(MYSQL_RES *res)
|
|
{
|
|
DBUG_ENTER("mysql_fetch_row");
|
|
if (!res->data)
|
|
{ /* Unbufferred fetch */
|
|
if (!res->eof)
|
|
{
|
|
MYSQL *mysql= res->handle;
|
|
if (mysql->status != MYSQL_STATUS_USE_RESULT)
|
|
{
|
|
set_mysql_error(mysql,
|
|
res->unbuffered_fetch_cancelled ?
|
|
CR_FETCH_CANCELED : CR_COMMANDS_OUT_OF_SYNC,
|
|
unknown_sqlstate);
|
|
}
|
|
else if (!(read_one_row(mysql, res->field_count, res->row, res->lengths)))
|
|
{
|
|
res->row_count++;
|
|
DBUG_RETURN(res->current_row=res->row);
|
|
}
|
|
DBUG_PRINT("info",("end of data"));
|
|
res->eof=1;
|
|
mysql->status=MYSQL_STATUS_READY;
|
|
/*
|
|
Reset only if owner points to us: there is a chance that somebody
|
|
started new query after mysql_stmt_close():
|
|
*/
|
|
if (mysql->unbuffered_fetch_owner == &res->unbuffered_fetch_cancelled)
|
|
mysql->unbuffered_fetch_owner= 0;
|
|
/* Don't clear handle in mysql_free_result */
|
|
res->handle=0;
|
|
}
|
|
DBUG_RETURN((MYSQL_ROW) NULL);
|
|
}
|
|
{
|
|
MYSQL_ROW tmp;
|
|
if (!res->data_cursor)
|
|
{
|
|
DBUG_PRINT("info",("end of data"));
|
|
DBUG_RETURN(res->current_row=(MYSQL_ROW) NULL);
|
|
}
|
|
tmp = res->data_cursor->data;
|
|
res->data_cursor = res->data_cursor->next;
|
|
DBUG_RETURN(res->current_row=tmp);
|
|
}
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
Get column lengths of the current row
|
|
If one uses mysql_use_result, res->lengths contains the length information,
|
|
else the lengths are calculated from the offset between pointers.
|
|
**************************************************************************/
|
|
|
|
ulong * STDCALL
|
|
mysql_fetch_lengths(MYSQL_RES *res)
|
|
{
|
|
MYSQL_ROW column;
|
|
|
|
if (!(column=res->current_row))
|
|
return 0; /* Something is wrong */
|
|
if (res->data)
|
|
(*res->methods->fetch_lengths)(res->lengths, column, res->field_count);
|
|
return res->lengths;
|
|
}
|
|
|
|
|
|
int STDCALL
|
|
mysql_options(MYSQL *mysql,enum mysql_option option, const void *arg)
|
|
{
|
|
DBUG_ENTER("mysql_option");
|
|
DBUG_PRINT("enter",("option: %d",(int) option));
|
|
switch (option) {
|
|
case MYSQL_OPT_CONNECT_TIMEOUT:
|
|
mysql->options.connect_timeout= *(uint*) arg;
|
|
break;
|
|
case MYSQL_OPT_READ_TIMEOUT:
|
|
mysql->options.read_timeout= *(uint*) arg;
|
|
break;
|
|
case MYSQL_OPT_WRITE_TIMEOUT:
|
|
mysql->options.write_timeout= *(uint*) arg;
|
|
break;
|
|
case MYSQL_OPT_COMPRESS:
|
|
mysql->options.compress= 1; /* Remember for connect */
|
|
mysql->options.client_flag|= CLIENT_COMPRESS;
|
|
break;
|
|
case MYSQL_OPT_NAMED_PIPE: /* This option is depricated */
|
|
mysql->options.protocol=MYSQL_PROTOCOL_PIPE; /* Force named pipe */
|
|
break;
|
|
case MYSQL_OPT_LOCAL_INFILE: /* Allow LOAD DATA LOCAL ?*/
|
|
if (!arg || test(*(uint*) arg))
|
|
mysql->options.client_flag|= CLIENT_LOCAL_FILES;
|
|
else
|
|
mysql->options.client_flag&= ~CLIENT_LOCAL_FILES;
|
|
break;
|
|
case MYSQL_INIT_COMMAND:
|
|
add_init_command(&mysql->options,arg);
|
|
break;
|
|
case MYSQL_READ_DEFAULT_FILE:
|
|
my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.my_cnf_file=my_strdup(arg,MYF(MY_WME));
|
|
break;
|
|
case MYSQL_READ_DEFAULT_GROUP:
|
|
my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.my_cnf_group=my_strdup(arg,MYF(MY_WME));
|
|
break;
|
|
case MYSQL_SET_CHARSET_DIR:
|
|
my_free(mysql->options.charset_dir,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.charset_dir=my_strdup(arg,MYF(MY_WME));
|
|
break;
|
|
case MYSQL_SET_CHARSET_NAME:
|
|
my_free(mysql->options.charset_name,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.charset_name=my_strdup(arg,MYF(MY_WME));
|
|
break;
|
|
case MYSQL_OPT_PROTOCOL:
|
|
mysql->options.protocol= *(uint*) arg;
|
|
break;
|
|
case MYSQL_SHARED_MEMORY_BASE_NAME:
|
|
#ifdef HAVE_SMEM
|
|
if (mysql->options.shared_memory_base_name != def_shared_memory_base_name)
|
|
my_free(mysql->options.shared_memory_base_name,MYF(MY_ALLOW_ZERO_PTR));
|
|
mysql->options.shared_memory_base_name=my_strdup(arg,MYF(MY_WME));
|
|
#endif
|
|
break;
|
|
case MYSQL_OPT_USE_REMOTE_CONNECTION:
|
|
case MYSQL_OPT_USE_EMBEDDED_CONNECTION:
|
|
case MYSQL_OPT_GUESS_CONNECTION:
|
|
mysql->options.methods_to_use= option;
|
|
break;
|
|
case MYSQL_SET_CLIENT_IP:
|
|
mysql->options.client_ip= my_strdup(arg, MYF(MY_WME));
|
|
break;
|
|
case MYSQL_SECURE_AUTH:
|
|
mysql->options.secure_auth= *(my_bool *) arg;
|
|
break;
|
|
case MYSQL_REPORT_DATA_TRUNCATION:
|
|
mysql->options.report_data_truncation= test(*(my_bool *) arg);
|
|
break;
|
|
case MYSQL_OPT_RECONNECT:
|
|
mysql->reconnect= *(my_bool *) arg;
|
|
break;
|
|
case MYSQL_OPT_SSL_VERIFY_SERVER_CERT:
|
|
if (*(my_bool*) arg)
|
|
mysql->options.client_flag|= CLIENT_SSL_VERIFY_SERVER_CERT;
|
|
else
|
|
mysql->options.client_flag&= ~CLIENT_SSL_VERIFY_SERVER_CERT;
|
|
break;
|
|
default:
|
|
DBUG_RETURN(1);
|
|
}
|
|
DBUG_RETURN(0);
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
Functions to get information from the MySQL structure
|
|
These are functions to make shared libraries more usable.
|
|
****************************************************************************/
|
|
|
|
/* MYSQL_RES */
|
|
my_ulonglong STDCALL mysql_num_rows(MYSQL_RES *res)
|
|
{
|
|
return res->row_count;
|
|
}
|
|
|
|
unsigned int STDCALL mysql_num_fields(MYSQL_RES *res)
|
|
{
|
|
return res->field_count;
|
|
}
|
|
|
|
uint STDCALL mysql_errno(MYSQL *mysql)
|
|
{
|
|
return mysql->net.client_last_errno;
|
|
}
|
|
|
|
|
|
const char * STDCALL mysql_error(MYSQL *mysql)
|
|
{
|
|
return mysql->net.client_last_error;
|
|
}
|
|
|
|
|
|
/*
|
|
Get version number for server in a form easy to test on
|
|
|
|
SYNOPSIS
|
|
mysql_get_server_version()
|
|
mysql Connection
|
|
|
|
EXAMPLE
|
|
4.1.0-alfa -> 40100
|
|
|
|
NOTES
|
|
We will ensure that a newer server always has a bigger number.
|
|
|
|
RETURN
|
|
Signed number > 323000
|
|
*/
|
|
|
|
ulong STDCALL
|
|
mysql_get_server_version(MYSQL *mysql)
|
|
{
|
|
uint major, minor, version;
|
|
char *pos= mysql->server_version, *end_pos;
|
|
major= (uint) strtoul(pos, &end_pos, 10); pos=end_pos+1;
|
|
minor= (uint) strtoul(pos, &end_pos, 10); pos=end_pos+1;
|
|
version= (uint) strtoul(pos, &end_pos, 10);
|
|
return (ulong) major*10000L+(ulong) (minor*100+version);
|
|
}
|
|
|
|
|
|
/*
|
|
mysql_set_character_set function sends SET NAMES cs_name to
|
|
the server (which changes character_set_client, character_set_result
|
|
and character_set_connection) and updates mysql->charset so other
|
|
functions like mysql_real_escape will work correctly.
|
|
*/
|
|
int STDCALL mysql_set_character_set(MYSQL *mysql, const char *cs_name)
|
|
{
|
|
struct charset_info_st *cs;
|
|
const char *save_csdir= charsets_dir;
|
|
|
|
if (mysql->options.charset_dir)
|
|
charsets_dir= mysql->options.charset_dir;
|
|
|
|
if (strlen(cs_name) < MY_CS_NAME_SIZE &&
|
|
(cs= get_charset_by_csname(cs_name, MY_CS_PRIMARY, MYF(0))))
|
|
{
|
|
char buff[MY_CS_NAME_SIZE + 10];
|
|
charsets_dir= save_csdir;
|
|
/* Skip execution of "SET NAMES" for pre-4.1 servers */
|
|
if (mysql_get_server_version(mysql) < 40100)
|
|
return 0;
|
|
sprintf(buff, "SET NAMES %s", cs_name);
|
|
if (!mysql_real_query(mysql, buff, strlen(buff)))
|
|
{
|
|
mysql->charset= cs;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char cs_dir_name[FN_REFLEN];
|
|
get_charsets_dir(cs_dir_name);
|
|
set_mysql_extended_error(mysql, CR_CANT_READ_CHARSET, unknown_sqlstate,
|
|
ER(CR_CANT_READ_CHARSET), cs_name, cs_dir_name);
|
|
}
|
|
charsets_dir= save_csdir;
|
|
return mysql->net.client_last_errno;
|
|
}
|
|
|
|
|