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Viewing changes to drizzled/function/str/load_file.cc

  • Committer: Stewart Smith
  • Date: 2008-07-13 08:00:16 UTC
  • mto: (210.1.1 drizzle)
  • mto: This revision was merged to the branch mainline in revision 211.
  • Revision ID: stewart@flamingspork.com-20080713080016-8qtjv9ypt42azzr6
CRC32() as UDF

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drizzled/function/str/load_file.cc
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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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <drizzled/server_includes.h>
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#include CSTDINT_H
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#include <drizzled/function/str/strfunc.h>
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#include <drizzled/function/str/load_file.h>
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#include <drizzled/error.h>
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#include <drizzled/data_home.h>
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#include <drizzled/session.h>
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String *Item_load_file::val_str(String *str)
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{
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  assert(fixed == 1);
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  String *file_name;
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  File file;
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  struct stat stat_info;
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  char path[FN_REFLEN];
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  if (!(file_name= args[0]->val_str(str)))
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    goto err;
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  (void) fn_format(path, file_name->c_ptr(), drizzle_real_data_home, "",
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                   MY_RELATIVE_PATH | MY_UNPACK_FILENAME);
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  /* Read only allowed from within dir specified by secure_file_priv */
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  if (opt_secure_file_priv &&
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      strncmp(opt_secure_file_priv, path, strlen(opt_secure_file_priv)))
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    goto err;
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  if (stat(path, &stat_info))
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    goto err;
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  if (!(stat_info.st_mode & S_IROTH))
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  {
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    /* my_error(ER_TEXTFILE_NOT_READABLE, MYF(0), file_name->c_ptr()); */
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    goto err;
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  }
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  if (stat_info.st_size > (long) current_session->variables.max_allowed_packet)
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  {
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    push_warning_printf(current_session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
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                        ER_WARN_ALLOWED_PACKET_OVERFLOWED,
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                        ER(ER_WARN_ALLOWED_PACKET_OVERFLOWED),
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                        func_name(), current_session->variables.max_allowed_packet);
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    goto err;
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  }
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  if (tmp_value.alloc((size_t)stat_info.st_size))
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    goto err;
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  if ((file = my_open(file_name->c_ptr(), O_RDONLY, MYF(0))) < 0)
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    goto err;
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  if (my_read(file, (unsigned char*) tmp_value.ptr(), (size_t)stat_info.st_size, MYF(MY_NABP)))
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  {
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    my_close(file, MYF(0));
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    goto err;
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  }
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  tmp_value.length((size_t)stat_info.st_size);
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  my_close(file, MYF(0));
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  null_value = 0;
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  return(&tmp_value);
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err:
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  null_value = 1;
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  return(0);
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}
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