1/* strsource-sym.c - Describing an error source with its symbol name.
2   Copyright (C) 2003, 2004 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 <stddef.h>
26
27#include <gpg-error.h>
28
29#include "err-sources-sym.h"
30
31/* Return a pointer to a string containing the name of the symbol of
32   the error source in the error value ERR.  Returns NULL if the error
33   code is not known.  */
34const char *
35gpg_strsource_sym (gpg_error_t err)
36{
37  gpg_err_source_t source = gpg_err_source (err);
38
39  if (msgidxof (source) == msgidxof (GPG_ERR_SOURCE_DIM))
40    return NULL;
41
42  return msgstr + msgidx[msgidxof (source)];
43}
44