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- Committer: Monty Taylor
- Date: 2009-04-09 05:35:58 UTC
- mfrom: (984 merge)
- mto: (992.1.1 mordred)
- mto: This revision was merged to the branch mainline in revision 986.
- Revision ID: mordred@inaugust.com-20090409053558-qi1x0zzsgf1d8f1p
Merged trunk.
- files added:
- drizzled/plugin/protocol.h
- files removed:
- support-files/libdrizzleclient.pc.in
- files renamed:
- libdrizzleclient/ => plugin/oldlibdrizzle/
- drizzled/protocol.cc => plugin/oldlibdrizzle/oldlibdrizzle.cc
- drizzled/protocol.h => plugin/oldlibdrizzle/oldlibdrizzle.h
- tests/r/init_connect.result => tests/suite/broken/r/init_connect.result
- tests/t/init_connect.test => tests/suite/broken/t/init_connect.test
- files modified:
- Makefile.am
added
removed
plugin/oldlibdrizzle/oldlibdrizzle.cc
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/* 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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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2008 Sun Microsystems
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*
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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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*
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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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*
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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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/**
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@file
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Low level functions for storing data to be send to the MySQL client.
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The actual communction is handled by the net_xxx functions in net_serv.cc
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*/
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#include <drizzled/server_includes.h>
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#include <drizzled/error.h>
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#include <drizzled/sql_state.h>
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#include <libdrizzleclient/pack.h>
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#include <libdrizzleclient/errmsg.h>
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#include <drizzled/protocol.h>
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#include <drizzled/session.h>
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#include <drizzled/data_home.h>
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#include "pack.h"
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#include "errmsg.h"
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#include "oldlibdrizzle.h"
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/*
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Function called by drizzleclient_net_init() to set some check variables
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*/
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extern "C" {
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void drizzleclient_net_local_init(NET *net)
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{
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net->max_packet= (uint32_t) global_system_variables.net_buffer_length;
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drizzleclient_net_set_read_timeout(net,
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(uint32_t)global_system_variables.net_read_timeout);
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drizzleclient_net_set_write_timeout(net,
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(uint32_t)global_system_variables.net_write_timeout);
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net->retry_count= (uint32_t) global_system_variables.net_retry_count;
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net->max_packet_size= cmax(global_system_variables.net_buffer_length,
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global_system_variables.max_allowed_packet);
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}
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}
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static const unsigned int PACKET_BUFFER_EXTRA_ALLOC= 1024;
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static void write_eof_packet(Session *session, NET *net,
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uint32_t server_status, uint32_t total_warn_count);
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bool Protocol::io_ok()
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bool ProtocolOldLibdrizzle::isConnected()
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{
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return net.vio != 0;
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}
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void Protocol::set_read_timeout(uint32_t timeout)
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void ProtocolOldLibdrizzle::setReadTimeout(uint32_t timeout)
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{
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drizzleclient_net_set_read_timeout(&net, timeout);
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}
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void Protocol::set_write_timeout(uint32_t timeout)
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void ProtocolOldLibdrizzle::setWriteTimeout(uint32_t timeout)
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{
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drizzleclient_net_set_write_timeout(&net, timeout);
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}
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void Protocol::set_retry_count(uint32_t count)
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void ProtocolOldLibdrizzle::setRetryCount(uint32_t count)
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{
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net.retry_count=count;
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}
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void Protocol::set_error(char error)
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void ProtocolOldLibdrizzle::setError(char error)
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{
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net.error= error;
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}
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bool Protocol::have_error(void)
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bool ProtocolOldLibdrizzle::haveError(void)
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{
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return net.error || net.vio == 0;
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}
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bool Protocol::was_aborted(void)
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bool ProtocolOldLibdrizzle::wasAborted(void)
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{
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return net.error && net.vio != 0;
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}
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bool Protocol::have_more_data(void)
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bool ProtocolOldLibdrizzle::haveMoreData(void)
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{
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return drizzleclient_net_more_data(&net);
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}
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bool Protocol::have_compression(void)
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{
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return net.compress;
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}
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void Protocol::enable_compression(void)
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void ProtocolOldLibdrizzle::enableCompression(void)
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{
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net.compress= true;
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}
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bool Protocol::is_reading(void)
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bool ProtocolOldLibdrizzle::isReading(void)
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{
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return net.reading_or_writing == 1;
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}
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bool Protocol::is_writing(void)
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bool ProtocolOldLibdrizzle::isWriting(void)
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{
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return net.reading_or_writing == 2;
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}
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/*
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* To disable results we set net.vio to 0.
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*/
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void Protocol::disable_results(void)
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{
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save_vio= net.vio;
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net.vio= 0;
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}
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void Protocol::enable_results(void)
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{
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net.vio= save_vio;
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}
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bool Protocol::net_store_data(const unsigned char *from, size_t length)
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bool ProtocolOldLibdrizzle::netStoreData(const unsigned char *from, size_t length)
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{
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size_t packet_length= packet->length();
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/*
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}
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/*
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net_store_data() - extended version with character set conversion.
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netStoreData() - extended version with character set conversion.
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It is optimized for short strings whose length after
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conversion is garanteed to be less than 251, which accupies
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because column, table, database names fit into this limit.
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*/
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bool Protocol::net_store_data(const unsigned char *from, size_t length,
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bool ProtocolOldLibdrizzle::netStoreData(const unsigned char *from, size_t length,
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const CHARSET_INFO * const from_cs,
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const CHARSET_INFO * const to_cs)
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const CHARSET_INFO * const to_cs)
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{
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uint32_t dummy_errors;
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/* Calculate maxumum possible result length */
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*/
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return (convert->copy((const char*) from, length, from_cs,
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to_cs, &dummy_errors) ||
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net_store_data((const unsigned char*) convert->ptr(), convert->length()));
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netStoreData((const unsigned char*) convert->ptr(), convert->length()));
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}
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size_t packet_length= packet->length();
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The ok packet has the following structure:
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- 0 : Marker (1 byte)
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- affected_rows : Stored in 1-9 bytes
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- id : Stored in 1-9 bytes
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- server_status : Copy of session->server_status; Can be used by client
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- affected_rows : Stored in 1-9 bytes
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- id : Stored in 1-9 bytes
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- server_status : Copy of session->server_status; Can be used by client
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to check if we are inside an transaction.
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New in 4.0 protocol
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- warning_count : Stored in 2 bytes; New in 4.1 protocol
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- message : Stored as packed length (1-9 bytes) + message.
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- warning_count : Stored in 2 bytes; New in 4.1 protocol
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- message : Stored as packed length (1-9 bytes) + message.
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Is not stored if no message.
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@param session Thread handler
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@param affected_rows Number of rows changed by statement
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@param id Auto_increment id for first row (if used)
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@param message Message to send to the client (Used by mysql_status)
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@param session Thread handler
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@param affected_rows Number of rows changed by statement
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@param id Auto_increment id for first row (if used)
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@param message Message to send to the client (Used by mysql_status)
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*/
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static void
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net_send_ok(Session *session, NET *net,
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uint32_t server_status, uint32_t total_warn_count,
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ha_rows affected_rows, uint64_t id, const char *message)
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void ProtocolOldLibdrizzle::sendOK()
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{
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unsigned char buff[DRIZZLE_ERRMSG_SIZE+10],*pos;
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const char *message= NULL;
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uint32_t tmp;
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if (!net->vio) // hack for re-parsing queries
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if (!net.vio) // hack for re-parsing queries
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{
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return;
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}
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buff[0]=0; // No fields
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pos=drizzleclient_net_store_length(buff+1,affected_rows);
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pos=drizzleclient_net_store_length(pos, id);
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int2store(pos, server_status);
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pos+=2;
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buff[0]=0; // No fields
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if (session->main_da.status() == Diagnostics_area::DA_OK)
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{
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pos=drizzleclient_net_store_length(buff+1,session->main_da.affected_rows());
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pos=drizzleclient_net_store_length(pos, session->main_da.last_insert_id());
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int2store(pos, session->main_da.server_status());
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pos+=2;
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tmp= cmin(session->main_da.total_warn_count(), (uint32_t)65535);
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message= session->main_da.message();
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}
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else
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{
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pos=drizzleclient_net_store_length(buff+1,0);
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pos=drizzleclient_net_store_length(pos, 0);
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int2store(pos, session->server_status);
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pos+=2;
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tmp= cmin(session->total_warn_count, (uint32_t)65535);
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}
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/* We can only return up to 65535 warnings in two bytes */
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uint32_t tmp= cmin(total_warn_count, (uint32_t)65535);
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int2store(pos, tmp);
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pos+= 2;
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memcpy(pos,(unsigned char*) message,length);
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pos+=length;
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}
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drizzleclient_net_write(net, buff, (size_t) (pos-buff));
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drizzleclient_net_flush(net);
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drizzleclient_net_write(&net, buff, (size_t) (pos-buff));
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drizzleclient_net_flush(&net);
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session->main_da.can_overwrite_status= false;
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}
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The eof packet has the following structure:
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- 254 (DRIZZLE_PROTOCOL_NO_MORE_DATA) : Marker (1 byte)
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- warning_count : Stored in 2 bytes; New in 4.1 protocol
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- status_flag : Stored in 2 bytes;
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- 254 (DRIZZLE_PROTOCOL_NO_MORE_DATA) : Marker (1 byte)
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- warning_count : Stored in 2 bytes; New in 4.1 protocol
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- status_flag : Stored in 2 bytes;
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For flags like SERVER_MORE_RESULTS_EXISTS.
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Note that the warning count will not be sent if 'no_flush' is set as
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we don't want to report the warning count until all data is sent to the
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client.
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@param session Thread handler
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@param no_flush Set to 1 if there will be more data to the client,
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like in send_fields().
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*/
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static void
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net_send_eof(Session *session, NET *net, uint32_t server_status, uint32_t total_warn_count)
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void ProtocolOldLibdrizzle::sendEOF()
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{
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/* Set to true if no active vio, to work well in case of --init-file */
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if (net->vio != 0)
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if (net.vio != 0)
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{
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session->main_da.can_overwrite_status= true;
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write_eof_packet(session, net, server_status, total_warn_count);
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drizzleclient_net_flush(net);
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write_eof_packet(session, &net, session->main_da.server_status(),
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session->main_da.total_warn_count());
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drizzleclient_net_flush(&net);
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session->main_da.can_overwrite_status= false;
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}
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}
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drizzleclient_net_write(net, buff, 5);
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}
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void Protocol_text::send_error_packet(uint32_t sql_errno, const char *err)
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void ProtocolOldLibdrizzle::sendError(uint32_t sql_errno, const char *err)
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{
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uint32_t length;
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/*
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*/
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unsigned char buff[2+1+SQLSTATE_LENGTH+DRIZZLE_ERRMSG_SIZE], *pos;
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assert(sql_errno);
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assert(err && err[0]);
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/*
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It's one case when we can push an error even though there
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is an OK or EOF already.
314
*/
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session->main_da.can_overwrite_status= true;
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/* Abort multi-result sets */
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session->server_status&= ~SERVER_MORE_RESULTS_EXISTS;
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/**
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Send a error string to client.
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For SIGNAL/RESIGNAL and GET DIAGNOSTICS functionality it's
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critical that every error that can be intercepted is issued in one
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place only, my_message_sql.
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*/
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if (net.vio == 0)
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{
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return;
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err= (char*) buff;
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drizzleclient_net_write_command(&net,(unsigned char) 255, (unsigned char*) "", 0, (unsigned char*) err, length);
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return;
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}
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/**
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Send a error string to client.
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Design note:
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net_printf_error and net_send_error are low-level functions
363
that shall be used only when a new connection is being
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established or at server startup.
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For SIGNAL/RESIGNAL and GET DIAGNOSTICS functionality it's
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critical that every error that can be intercepted is issued in one
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place only, my_message_sql.
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*/
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void Protocol_text::send_error(uint32_t sql_errno, const char *err)
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{
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assert(sql_errno);
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assert(err && err[0]);
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/*
376
It's one case when we can push an error even though there
377
is an OK or EOF already.
378
*/
379
session->main_da.can_overwrite_status= true;
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/* Abort multi-result sets */
382
session->server_status&= ~SERVER_MORE_RESULTS_EXISTS;
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send_error_packet(sql_errno, err);
385
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session->main_da.can_overwrite_status= false;
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}
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352
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/**
391
Send the status of the current statement execution over network.
392
393
@param session in fact, carries two parameters, NET for the transport and
394
Diagnostics_area as the source of status information.
395
396
In MySQL, there are two types of SQL statements: those that return
397
a result set and those that return status information only.
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If a statement returns a result set, it consists of 3 parts:
400
- result set meta-data
401
- variable number of result set rows (can be 0)
402
- followed and terminated by EOF or ERROR packet
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404
Once the client has seen the meta-data information, it always
405
expects an EOF or ERROR to terminate the result set. If ERROR is
406
received, the result set rows are normally discarded (this is up
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to the client implementation, libmysql at least does discard them).
408
EOF, on the contrary, means "successfully evaluated the entire
409
result set". Since we don't know how many rows belong to a result
410
set until it's evaluated, EOF/ERROR is the indicator of the end
411
of the row stream. Note, that we can not buffer result set rows
412
on the server -- there may be an arbitrary number of rows. But
413
we do buffer the last packet (EOF/ERROR) in the Diagnostics_area and
414
delay sending it till the very end of execution (here), to be able to
415
change EOF to an ERROR if commit failed or some other error occurred
416
during the last cleanup steps taken after execution.
417
418
A statement that does not return a result set doesn't send result
419
set meta-data either. Instead it returns one of:
420
- OK packet
421
- ERROR packet.
422
Similarly to the EOF/ERROR of the previous statement type, OK/ERROR
423
packet is "buffered" in the diagnostics area and sent to the client
424
in the end of statement.
425
426
@pre The diagnostics area is assigned or disabled. It can not be empty
427
-- we assume that every SQL statement or COM_* command
428
generates OK, ERROR, or EOF status.
429
430
@post The status information is encoded to protocol format and sent to the
431
client.
432
433
@return We conventionally return void, since the only type of error
434
that can happen here is a NET (transport) error, and that one
435
will become visible when we attempt to read from the NET the
436
next command.
437
Diagnostics_area::is_sent is set for debugging purposes only.
438
*/
439
440
void Protocol::end_statement()
353
ProtocolOldLibdrizzle::ProtocolOldLibdrizzle()
441
354
{
442
assert(! session->main_da.is_sent);
443
444
/* Can not be true, but do not take chances in production. */
445
if (session->main_da.is_sent)
446
return;
447
448
switch (session->main_da.status()) {
449
case Diagnostics_area::DA_ERROR:
450
/* The query failed, send error to log and abort bootstrap. */
451
send_error(session->main_da.sql_errno(),
452
session->main_da.message());
453
break;
454
case Diagnostics_area::DA_EOF:
455
net_send_eof(session, &net,
456
session->main_da.server_status(),
457
session->main_da.total_warn_count());
458
break;
459
case Diagnostics_area::DA_OK:
460
net_send_ok(session, &net,
461
session->main_da.server_status(),
462
session->main_da.total_warn_count(),
463
session->main_da.affected_rows(),
464
session->main_da.last_insert_id(),
465
session->main_da.message());
466
break;
467
case Diagnostics_area::DA_DISABLED:
468
break;
469
case Diagnostics_area::DA_EMPTY:
470
default:
471
//TODO: Something is being masked here by commenting this out
472
// assert(0);
473
net_send_ok(session, &net, session->server_status, session->total_warn_count,
474
0, 0, NULL);
475
break;
476
}
477
session->main_da.is_sent= true;
355
scramble[0]= 0;
356
net.vio= 0;
478
357
}
479
358
480
481
/*****************************************************************************
482
Default Protocol functions
483
*****************************************************************************/
484
485
void Protocol::init(Session *session_arg)
359
void ProtocolOldLibdrizzle::setSession(Session *session_arg)
486
360
{
487
session=session_arg;
361
session= session_arg;
488
362
packet= &session->packet;
489
363
convert= &session->convert_buffer;
490
net.vio= 0;
491
}
492
493
494
bool Protocol::flush()
495
{
496
return drizzleclient_net_flush(&net);
497
364
}
498
365
499
366
502
369
503
370
Sum fields has table name empty and field_name.
504
371
505
@param Session Thread data object
506
@param list List of items to send to client
507
@param flag Bit mask with the following functions:
372
@param Session Thread data object
373
@param list List of items to send to client
374
@param flag Bit mask with the following functions:
508
375
- 1 send number of rows
509
376
- 2 send default values
510
377
- 4 don't write eof packet
511
378
512
379
@retval
513
0 ok
380
0 ok
514
381
@retval
515
1 Error (Note that in this case the error is not sent to the
382
1 Error (Note that in this case the error is not sent to the
516
383
client)
517
384
*/
518
bool Protocol::send_fields(List<Item> *list, uint32_t flags)
385
bool ProtocolOldLibdrizzle::sendFields(List<Item> *list, uint32_t flags)
519
386
{
520
387
List_iterator_fast<Item> it(*list);
521
388
Item *item;
522
389
unsigned char buff[80];
523
390
String tmp((char*) buff,sizeof(buff),&my_charset_bin);
524
String *local_packet= storage_packet();
525
const CHARSET_INFO * const session_charset= default_charset_info;
526
391
527
392
if (flags & SEND_NUM_ROWS)
528
{ // Packet with number of elements
393
{ // Packet with number of elements
529
394
unsigned char *pos= drizzleclient_net_store_length(buff, list->elements);
530
395
(void) drizzleclient_net_write(&net, buff, (size_t) (pos-buff));
531
396
}
537
402
Send_field field;
538
403
item->make_field(&field);
539
404
540
prepare_for_resend();
541
542
543
if (store(STRING_WITH_LEN("def"), cs, session_charset) ||
544
store(field.db_name, (uint32_t) strlen(field.db_name),
545
cs, session_charset) ||
546
store(field.table_name, (uint32_t) strlen(field.table_name),
547
cs, session_charset) ||
548
store(field.org_table_name, (uint32_t) strlen(field.org_table_name),
549
cs, session_charset) ||
550
store(field.col_name, (uint32_t) strlen(field.col_name),
551
cs, session_charset) ||
552
store(field.org_col_name, (uint32_t) strlen(field.org_col_name),
553
cs, session_charset) ||
554
local_packet->realloc(local_packet->length()+12))
405
prepareForResend();
406
407
if (store(STRING_WITH_LEN("def"), cs) ||
408
store(field.db_name, cs) ||
409
store(field.table_name, cs) ||
410
store(field.org_table_name, cs) ||
411
store(field.col_name, cs) ||
412
store(field.org_col_name, cs) ||
413
packet->realloc(packet->length()+12))
555
414
goto err;
556
415
557
416
/* Store fixed length fields */
558
pos= (char*) local_packet->ptr()+local_packet->length();
559
*pos++= 12; // Length of packed fields
560
if (item->collation.collation == &my_charset_bin || session_charset == NULL)
417
pos= (char*) packet->ptr()+packet->length();
418
*pos++= 12; // Length of packed fields
419
if (item->collation.collation == &my_charset_bin)
561
420
{
562
421
/* No conversion */
563
422
int2store(pos, field.charsetnr);
567
426
{
568
427
/* With conversion */
569
428
uint32_t max_char_len;
570
int2store(pos, session_charset->number);
429
int2store(pos, cs->number);
571
430
/*
572
431
For TEXT/BLOB columns, field_length describes the maximum data
573
432
length in bytes. There is no limit to the number of characters
579
438
of characters here is limited by the column definition.
580
439
*/
581
440
max_char_len= field.length / item->collation.collation->mbmaxlen;
582
int4store(pos+2, max_char_len * session_charset->mbmaxlen);
441
int4store(pos+2, max_char_len * cs->mbmaxlen);
583
442
}
584
443
pos[6]= field.type;
585
444
int2store(pos+7,field.flags);
586
445
pos[9]= (char) field.decimals;
587
pos[10]= 0; // For the future
588
pos[11]= 0; // For the future
446
pos[10]= 0; // For the future
447
pos[11]= 0; // For the future
589
448
pos+= 12;
590
449
591
local_packet->length((uint32_t) (pos - local_packet->ptr()));
450
packet->length((uint32_t) (pos - packet->ptr()));
592
451
if (flags & SEND_DEFAULTS)
593
item->send(this, &tmp); // Send default value
452
item->send(this, &tmp); // Send default value
594
453
if (write())
595
break; /* purecov: inspected */
454
break; /* purecov: inspected */
596
455
}
597
456
598
457
if (flags & SEND_EOF)
604
463
*/
605
464
write_eof_packet(session, &net, session->server_status, session->total_warn_count);
606
465
}
607
return(prepare_for_send(list));
466
467
field_count= list->elements;
468
return 0;
608
469
609
470
err:
610
471
my_message(ER_OUT_OF_RESOURCES, ER(ER_OUT_OF_RESOURCES),
611
MYF(0)); /* purecov: inspected */
612
return(1); /* purecov: inspected */
472
MYF(0)); /* purecov: inspected */
473
return 1; /* purecov: inspected */
613
474
}
614
475
615
476
616
bool Protocol::write()
477
bool ProtocolOldLibdrizzle::write()
617
478
{
618
479
return(drizzleclient_net_write(&net, (unsigned char*) packet->ptr(),
619
480
packet->length()));
620
481
}
621
482
622
623
/**
624
Send \\0 end terminated string.
625
626
@param from NULL or \\0 terminated string
627
628
@note
629
In most cases one should use store(from, length) instead of this function
630
631
@retval
632
0 ok
633
@retval
634
1 error
635
*/
636
637
bool Protocol::store(const char *from, const CHARSET_INFO * const cs)
638
{
639
if (!from)
640
return store_null();
641
uint32_t length= strlen(from);
642
return store(from, length, cs);
643
}
644
645
646
/**
647
Send a set of strings as one long string with ',' in between.
648
*/
649
650
bool Protocol::store(I_List<i_string>* str_list)
651
{
652
char buf[256];
653
String tmp(buf, sizeof(buf), &my_charset_bin);
654
uint32_t len;
655
I_List_iterator<i_string> it(*str_list);
656
i_string* s;
657
658
tmp.length(0);
659
while ((s=it++))
660
{
661
tmp.append(s->ptr);
662
tmp.append(',');
663
}
664
if ((len= tmp.length()))
665
len--; // Remove last ','
666
return store((char*) tmp.ptr(), len, tmp.charset());
667
}
668
669
670
bool Protocol::store(String *str)
671
{
672
return store((char*) str->ptr(), str->length(), str->charset());
673
}
674
675
void Protocol::free()
483
void ProtocolOldLibdrizzle::free()
676
484
{
677
485
packet->free();
678
486
}
679
487
680
488
681
/****************************************************************************
682
Functions to handle the simple (default) protocol where everything is
683
This protocol is the one that is used by default between the MySQL server
684
and client when you are not using prepared statements.
685
686
All data are sent as 'packed-string-length' followed by 'string-data'
687
****************************************************************************/
688
689
void Protocol_text::init_random(uint64_t seed1, uint64_t seed2)
489
void ProtocolOldLibdrizzle::setRandom(uint64_t seed1, uint64_t seed2)
690
490
{
691
drizzleclient_randominit(&_rand, seed1, seed2);
491
drizzleclient_randominit(&rand, seed1, seed2);
692
492
}
693
493
694
bool Protocol_text::init_file_descriptor(int fd)
494
bool ProtocolOldLibdrizzle::setFileDescriptor(int fd)
695
495
{
696
496
if (drizzleclient_net_init_sock(&net, fd, 0))
697
497
return true;
698
498
return false;
699
499
}
700
500
701
int Protocol_text::file_descriptor(void)
501
int ProtocolOldLibdrizzle::fileDescriptor(void)
702
502
{
703
503
return drizzleclient_net_get_sd(&net);
704
504
}
705
505
706
bool Protocol_text::authenticate()
506
bool ProtocolOldLibdrizzle::authenticate()
707
507
{
708
508
bool connection_is_valid;
709
509
711
511
drizzleclient_net_set_read_timeout(&net, connect_timeout);
712
512
drizzleclient_net_set_write_timeout(&net, connect_timeout);
713
513
714
connection_is_valid= _check_connection();
715
end_statement();
514
connection_is_valid= checkConnection();
716
515
717
if (!connection_is_valid)
516
if (connection_is_valid)
517
sendOK();
518
else
519
{
520
sendError(session->main_da.sql_errno(), session->main_da.message());
718
521
return false;
522
}
719
523
720
524
/* Connect completed, set read/write timeouts back to default */
721
525
drizzleclient_net_set_read_timeout(&net,
725
529
return true;
726
530
}
727
531
728
bool Protocol_text::read_command(char **l_packet, uint32_t *packet_length)
532
bool ProtocolOldLibdrizzle::readCommand(char **l_packet, uint32_t *packet_length)
729
533
{
730
534
/*
731
535
This thread will do a blocking read from the client which
736
540
drizzleclient_net_set_read_timeout(&net,
737
541
session->variables.net_wait_timeout);
738
542
739
/*
740
XXX: this code is here only to clear possible errors of init_connect.
741
Consider moving to init_connect() instead.
742
*/
743
session->clear_error(); // Clear error message
543
session->clear_error();
744
544
session->main_da.reset_diagnostics_area();
745
545
746
546
net.pkt_nr=0;
752
552
753
553
if(net.last_errno== CR_NET_PACKET_TOO_LARGE)
754
554
my_error(ER_NET_PACKET_TOO_LARGE, MYF(0));
755
/* Assert is invalid for dirty connection shutdown
756
* assert(session->is_error());
757
*/
758
end_statement();
555
if (session->main_da.status() == Diagnostics_area::DA_ERROR)
556
sendError(session->main_da.sql_errno(), session->main_da.message());
557
else
558
session->protocol->sendOK();
759
559
760
560
if (net.error != 3)
761
561
return false; // We have to close it.
792
592
return true;
793
593
}
794
594
795
void Protocol_text::close(void)
595
void ProtocolOldLibdrizzle::close(void)
796
596
{
797
597
if (net.vio)
798
598
{
801
601
}
802
602
}
803
603
804
void Protocol_text::prepare_for_resend()
604
void ProtocolOldLibdrizzle::prepareForResend()
805
605
{
806
606
packet->length(0);
807
607
}
808
608
809
bool Protocol_text::store_null()
609
bool ProtocolOldLibdrizzle::store(void)
810
610
{
811
611
char buff[1];
812
612
buff[0]= (char)251;
819
619
and store in network buffer.
820
620
*/
821
621
822
bool Protocol::store_string_aux(const char *from, size_t length,
823
const CHARSET_INFO * const fromcs,
824
const CHARSET_INFO * const tocs)
622
bool ProtocolOldLibdrizzle::storeString(const char *from, size_t length,
623
const CHARSET_INFO * const fromcs,
624
const CHARSET_INFO * const tocs)
825
625
{
826
626
/* 'tocs' is set 0 when client issues SET character_set_results=NULL */
827
627
if (tocs && !my_charset_same(fromcs, tocs) &&
829
629
tocs != &my_charset_bin)
830
630
{
831
631
/* Store with conversion */
832
return net_store_data((unsigned char*) from, length, fromcs, tocs);
632
return netStoreData((unsigned char*) from, length, fromcs, tocs);
833
633
}
834
634
/* Store without conversion */
835
return net_store_data((unsigned char*) from, length);
836
}
837
838
839
bool Protocol_text::store(const char *from, size_t length,
840
const CHARSET_INFO * const fromcs,
841
const CHARSET_INFO * const tocs)
842
{
843
return store_string_aux(from, length, fromcs, tocs);
844
}
845
846
847
bool Protocol_text::store(const char *from, size_t length,
635
return netStoreData((unsigned char*) from, length);
636
}
637
638
639
bool ProtocolOldLibdrizzle::store(const char *from, size_t length,
848
640
const CHARSET_INFO * const fromcs)
849
641
{
850
642
const CHARSET_INFO * const tocs= default_charset_info;
851
return store_string_aux(from, length, fromcs, tocs);
852
}
853
854
855
bool Protocol_text::store_tiny(int64_t from)
856
{
857
char buff[20];
858
return net_store_data((unsigned char*) buff,
859
(size_t) (int10_to_str((int) from, buff, -10) - buff));
860
}
861
862
863
bool Protocol_text::store_short(int64_t from)
864
{
865
char buff[20];
866
return net_store_data((unsigned char*) buff,
867
(size_t) (int10_to_str((int) from, buff, -10) -
868
buff));
869
}
870
871
872
bool Protocol_text::store_long(int64_t from)
873
{
874
char buff[20];
875
return net_store_data((unsigned char*) buff,
876
(size_t) (int10_to_str((long int)from, buff,
877
(from <0)?-10:10)-buff));
878
}
879
880
881
bool Protocol_text::store_int64_t(int64_t from, bool unsigned_flag)
643
return storeString(from, length, fromcs, tocs);
644
}
645
646
647
bool ProtocolOldLibdrizzle::store(int32_t from)
648
{
649
char buff[12];
650
return netStoreData((unsigned char*) buff,
651
(size_t) (int10_to_str(from, buff, -10) - buff));
652
}
653
654
bool ProtocolOldLibdrizzle::store(uint32_t from)
655
{
656
char buff[11];
657
return netStoreData((unsigned char*) buff,
658
(size_t) (int10_to_str(from, buff, 10) - buff));
659
}
660
661
bool ProtocolOldLibdrizzle::store(int64_t from)
882
662
{
883
663
char buff[22];
884
return net_store_data((unsigned char*) buff,
885
(size_t) (int64_t10_to_str(from,buff,
886
unsigned_flag ? 10 : -10)-
887
buff));
888
}
889
890
891
bool Protocol_text::store_decimal(const my_decimal *d)
892
{
893
char buff[DECIMAL_MAX_STR_LENGTH];
894
String str(buff, sizeof(buff), &my_charset_bin);
895
(void) my_decimal2string(E_DEC_FATAL_ERROR, d, 0, 0, 0, &str);
896
return net_store_data((unsigned char*) str.ptr(), str.length());
897
}
898
899
900
bool Protocol_text::store(float from, uint32_t decimals, String *buffer)
901
{
902
buffer->set_real((double) from, decimals, session->charset());
903
return net_store_data((unsigned char*) buffer->ptr(), buffer->length());
904
}
905
906
907
bool Protocol_text::store(double from, uint32_t decimals, String *buffer)
664
return netStoreData((unsigned char*) buff,
665
(size_t) (int64_t10_to_str(from, buff, -10) - buff));
666
}
667
668
bool ProtocolOldLibdrizzle::store(uint64_t from)
669
{
670
char buff[21];
671
return netStoreData((unsigned char*) buff,
672
(size_t) (int64_t10_to_str(from, buff, 10) - buff));
673
}
674
675
676
bool ProtocolOldLibdrizzle::store(double from, uint32_t decimals, String *buffer)
908
677
{
909
678
buffer->set_real(from, decimals, session->charset());
910
return net_store_data((unsigned char*) buffer->ptr(), buffer->length());
679
return netStoreData((unsigned char*) buffer->ptr(), buffer->length());
911
680
}
912
681
913
682
914
bool Protocol_text::store(Field *field)
683
bool ProtocolOldLibdrizzle::store(Field *from)
915
684
{
916
if (field->is_null())
917
return store_null();
685
if (from->is_null())
686
return store();
918
687
char buff[MAX_FIELD_WIDTH];
919
688
String str(buff,sizeof(buff), &my_charset_bin);
920
689
const CHARSET_INFO * const tocs= default_charset_info;
921
690
922
field->val_str(&str);
923
924
return store_string_aux(str.ptr(), str.length(), str.charset(), tocs);
925
}
926
927
928
/**
929
@todo
930
Second_part format ("%06") needs to change when
931
we support 0-6 decimals for time.
932
*/
933
934
bool Protocol_text::store(DRIZZLE_TIME *tm)
935
{
936
char buff[40];
937
uint32_t length;
938
length= sprintf(buff, "%04d-%02d-%02d %02d:%02d:%02d",
939
(int) tm->year,
940
(int) tm->month,
941
(int) tm->day,
942
(int) tm->hour,
943
(int) tm->minute,
944
(int) tm->second);
945
if (tm->second_part)
946
length+= sprintf(buff+length, ".%06d",
947
(int)tm->second_part);
948
return net_store_data((unsigned char*) buff, length);
949
}
950
951
952
bool Protocol_text::store_date(DRIZZLE_TIME *tm)
953
{
954
char buff[MAX_DATE_STRING_REP_LENGTH];
955
size_t length= my_date_to_str(tm, buff);
956
return net_store_data((unsigned char*) buff, length);
957
}
958
959
960
/**
961
@todo
962
Second_part format ("%06") needs to change when
963
we support 0-6 decimals for time.
964
*/
965
966
bool Protocol_text::store_time(DRIZZLE_TIME *tm)
967
{
968
char buff[40];
969
uint32_t length;
970
uint32_t day= (tm->year || tm->month) ? 0 : tm->day;
971
length= sprintf(buff, "%s%02ld:%02d:%02d",
972
tm->neg ? "-" : "",
973
(long) day*24L+(long) tm->hour,
974
(int) tm->minute,
975
(int) tm->second);
976
if (tm->second_part)
977
length+= sprintf(buff+length, ".%06d", (int)tm->second_part);
978
return net_store_data((unsigned char*) buff, length);
979
}
980
981
bool Protocol_text::_check_connection(void)
691
from->val_str(&str);
692
693
return storeString(str.ptr(), str.length(), str.charset(), tocs);
694
}
695
696
697
/**
698
@todo
699
Second_part format ("%06") needs to change when
700
we support 0-6 decimals for time.
701
*/
702
703
bool ProtocolOldLibdrizzle::store(const DRIZZLE_TIME *tm)
704
{
705
char buff[40];
706
uint32_t length;
707
uint32_t day;
708
709
switch (tm->time_type)
710
{
711
case DRIZZLE_TIMESTAMP_DATETIME:
712
length= sprintf(buff, "%04d-%02d-%02d %02d:%02d:%02d",
713
(int) tm->year,
714
(int) tm->month,
715
(int) tm->day,
716
(int) tm->hour,
717
(int) tm->minute,
718
(int) tm->second);
719
if (tm->second_part)
720
length+= sprintf(buff+length, ".%06d", (int)tm->second_part);
721
break;
722
723
case DRIZZLE_TIMESTAMP_DATE:
724
length= sprintf(buff, "%04d-%02d-%02d",
725
(int) tm->year,
726
(int) tm->month,
727
(int) tm->day);
728
break;
729
730
case DRIZZLE_TIMESTAMP_TIME:
731
day= (tm->year || tm->month) ? 0 : tm->day;
732
length= sprintf(buff, "%s%02ld:%02d:%02d", tm->neg ? "-" : "",
733
(long) day*24L+(long) tm->hour, (int) tm->minute,
734
(int) tm->second);
735
if (tm->second_part)
736
length+= sprintf(buff+length, ".%06d", (int)tm->second_part);
737
break;
738
739
case DRIZZLE_TIMESTAMP_NONE:
740
case DRIZZLE_TIMESTAMP_ERROR:
741
default:
742
assert(0);
743
return false;
744
}
745
746
return netStoreData((unsigned char*) buff, length);
747
}
748
749
bool ProtocolOldLibdrizzle::checkConnection(void)
982
750
{
983
751
uint32_t pkt_len= 0;
984
752
char *end;
1022
790
procedure, scramble is set here. This gives us new scramble for
1023
791
each handshake.
1024
792
*/
1025
drizzleclient_create_random_string(_scramble, SCRAMBLE_LENGTH, &_rand);
793
drizzleclient_create_random_string(scramble, SCRAMBLE_LENGTH, &rand);
1026
794
/*
1027
795
Old clients does not understand long scrambles, but can ignore packet
1028
796
tail: that's why first part of the scramble is placed here, and second
1029
797
part at the end of packet.
1030
798
*/
1031
end= strncpy(end, _scramble, SCRAMBLE_LENGTH_323);
799
end= strncpy(end, scramble, SCRAMBLE_LENGTH_323);
1032
800
end+= SCRAMBLE_LENGTH_323;
1033
801
1034
802
*end++= 0; /* an empty byte for some reason */
1041
809
end+= 18;
1042
810
/* write scramble tail */
1043
811
size_t scramble_len= SCRAMBLE_LENGTH - SCRAMBLE_LENGTH_323;
1044
end= strncpy(end, _scramble + SCRAMBLE_LENGTH_323, scramble_len);
812
end= strncpy(end, scramble + SCRAMBLE_LENGTH_323, scramble_len);
1045
813
end+= scramble_len;
1046
814
1047
815
*end++= 0; /* an empty byte for some reason */
1053
821
, 0
1054
822
, (unsigned char*) buff
1055
823
, (size_t) (end-buff))
1056
|| (pkt_len= drizzleclient_net_read(&net)) == packet_error
824
|| (pkt_len= drizzleclient_net_read(&net)) == packet_error
1057
825
|| pkt_len < MIN_HANDSHAKE_SIZE)
1058
826
{
1059
827
my_error(ER_HANDSHAKE_ERROR, MYF(0), session->security_ctx.ip.c_str());
1090
858
uint32_t user_len= passwd - user - 1;
1091
859
char *l_db= passwd;
1092
860
char db_buff[NAME_LEN + 1]; // buffer to store db in utf8
1093
char user_buff[USERNAME_LENGTH + 1]; // buffer to store user in utf8
861
char user_buff[USERNAME_LENGTH + 1]; // buffer to store user in utf8
1094
862
uint32_t dummy_errors;
1095
863
1096
864
/*
1143
911
1144
912
return session->checkUser(passwd, passwd_len, l_db);
1145
913
}
914
915
static int init(void *p)
916
{
917
ProtocolFactory **factory= static_cast<ProtocolFactory **>(p);
918
*factory= new ProtocolFactoryOldLibdrizzle;
919
return 0;
920
}
921
922
static int deinit(void *p)
923
{
924
ProtocolFactoryOldLibdrizzle *factory= static_cast<ProtocolFactoryOldLibdrizzle *>(p);
925
delete factory;
926
return 0;
927
}
928
929
drizzle_declare_plugin(oldlibdrizzle)
930
{
931
DRIZZLE_PROTOCOL_PLUGIN,
932
"oldlibdrizzle",
933
"0.1",
934
"Eric Day",
935
"Old libdrizzle Protocol",
936
PLUGIN_LICENSE_GPL,
937
init, /* Plugin Init */
938
deinit, /* Plugin Deinit */
939
NULL, /* status variables */
940
NULL, /* system variables */
941
NULL /* config options */
942
}
943
drizzle_declare_plugin_end;
Loggerhead is a web-based interface for Breezy
Version: 2.0.1