Line data    Source code

       1             : /* code-to-errno.c - Mapping error codes to errnos.
       2             :    Copyright (C) 2003 g10 Code GmbH
       3             : 
       4             :    This file is part of libgpg-error.
       5             : 
       6             :    libgpg-error is free software; you can redistribute it and/or
       7             :    modify it under the terms of the GNU Lesser General Public License
       8             :    as published by the Free Software Foundation; either version 2.1 of
       9             :    the License, or (at your option) any later version.
      10             : 
      11             :    libgpg-error is distributed in the hope that it will be useful, but
      12             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :    Lesser General Public License for more details.
      15             : 
      16             :    You should have received a copy of the GNU Lesser General Public
      17             :    License along with libgpg-error; if not, write to the Free
      18             :    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
      19             :    02111-1307, USA.  */
      20             : 
      21             : #if HAVE_CONFIG_H
      22             : #include <config.h>
      23             : #endif
      24             : 
      25             : #include <gpg-error.h>
      26             : 
      27             : #include "code-to-errno.h"
      28             : 
      29             : /* Retrieve the system error for the error code CODE.  This returns 0
      30             :    if CODE is not a system error code.  */
      31             : int
      32           0 : _gpg_err_code_to_errno (gpg_err_code_t code)
      33             : {
      34           0 :   if (!(code & GPG_ERR_SYSTEM_ERROR))
      35             :     return 0;
      36           0 :   code &= ~GPG_ERR_SYSTEM_ERROR;
      37             : 
      38           0 :   if (code < sizeof (err_code_to_errno) / sizeof (err_code_to_errno[0]))
      39           0 :     return err_code_to_errno[code];
      40             :   else
      41             :     return 0;
      42             : }