File: strsource-sym.c

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/* strsource-sym.c - Describing an error source with its symbol name.
   Copyright (C) 2003, 2004 g10 Code GmbH

   This file is part of libgpg-error.
 
   libgpg-error is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public License
   as published by the Free Software Foundation; either version 2.1 of
   the License, or (at your option) any later version.
 
   libgpg-error is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with libgpg-error; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */

#if HAVE_CONFIG_H
#include <config.h>
#endif

#include <stddef.h>

#include <gpg-error.h>

#include "err-sources-sym.h"

/* Return a pointer to a string containing the name of the symbol of
   the error source in the error value ERR.  Returns NULL if the error
   code is not known.  */
const char *
gpg_strsource_sym (gpg_error_t err)
{
  gpg_err_source_t source = gpg_err_source (err);

  if (msgidxof (source) == msgidxof (GPG_ERR_SOURCE_DIM))
    return NULL;

  return msgstr + msgidx[msgidxof (source)];
}