~drizzle-trunk/drizzle/development

2472.1.1 by Brian Aker
Formatting, and valgrind cleanups (just mismatch of free/delete).
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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
1712.1.1 by Monty Taylor
Merged libdrizzle directly into tree.
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 * Drizzle Client & Protocol Library
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 *
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 * Copyright (C) 2008 Eric Day (eday@oddments.org)
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 * All rights reserved.
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 *
1971.2.1 by kalebral at gmail
update files that did not have license or had incorrect license structure
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are
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 * met:
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 *
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 *     * Redistributions of source code must retain the above copyright
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 * notice, this list of conditions and the following disclaimer.
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 *
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 *     * Redistributions in binary form must reproduce the above
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 * copyright notice, this list of conditions and the following disclaimer
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 * in the documentation and/or other materials provided with the
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 * distribution.
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 *
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 *     * The names of its contributors may not be used to endorse or
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 * promote products derived from this software without specific prior
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 * written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
1712.1.1 by Monty Taylor
Merged libdrizzle directly into tree.
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 */
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/**
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 * @file
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 * @brief State machine definitions
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 */
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2478.1.2 by Brian Aker
Fix race condition in bison build, also fix NULL issue on FreeBSD.
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#include <libdrizzle/common.h>
1712.1.1 by Monty Taylor
Merged libdrizzle directly into tree.
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drizzle_return_t drizzle_state_loop(drizzle_con_st *con)
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{
2472.1.2 by Brian Aker
Null safety fix for libdrizzle
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  if (con == NULL)
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  {
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    return DRIZZLE_RETURN_INVALID_ARGUMENT;
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  }
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2449.1.4 by Brian Aker
Complete update of libdrizzle
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  while (drizzle_state_none(con) == false)
1712.1.1 by Monty Taylor
Merged libdrizzle directly into tree.
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  {
2449.1.4 by Brian Aker
Complete update of libdrizzle
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    drizzle_return_t ret= con->state_stack[con->state_current - 1](con);
1712.1.1 by Monty Taylor
Merged libdrizzle directly into tree.
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    if (ret != DRIZZLE_RETURN_OK)
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    {
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      if (ret != DRIZZLE_RETURN_IO_WAIT && ret != DRIZZLE_RETURN_PAUSE &&
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          ret != DRIZZLE_RETURN_ERROR_CODE)
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      {
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        drizzle_con_close(con);
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      }
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      return ret;
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    }
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  }
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  return DRIZZLE_RETURN_OK;
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}
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drizzle_return_t drizzle_state_packet_read(drizzle_con_st *con)
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{
2472.1.2 by Brian Aker
Null safety fix for libdrizzle
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  if (con == NULL)
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  {
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    return DRIZZLE_RETURN_INVALID_ARGUMENT;
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  }
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1712.1.1 by Monty Taylor
Merged libdrizzle directly into tree.
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  drizzle_log_debug(con->drizzle, "drizzle_state_packet_read");
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  if (con->buffer_size < 4)
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  {
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    drizzle_state_push(con, drizzle_state_read);
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    return DRIZZLE_RETURN_OK;
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  }
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  con->packet_size= drizzle_get_byte3(con->buffer_ptr);
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  if (con->packet_number != con->buffer_ptr[3])
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  {
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    drizzle_set_error(con->drizzle, "drizzle_state_packet_read",
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                      "bad packet number:%u:%u", con->packet_number,
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                      con->buffer_ptr[3]);
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    return DRIZZLE_RETURN_BAD_PACKET_NUMBER;
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  }
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  drizzle_log_debug(con->drizzle, "packet_size= %zu, packet_number= %u",
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                    con->packet_size, con->packet_number);
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  con->packet_number++;
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  con->buffer_ptr+= 4;
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  con->buffer_size-= 4;
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  drizzle_state_pop(con);
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  return DRIZZLE_RETURN_OK;
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}