Line data Source code
1 : /* strerror-sym.c - Describing an error code 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-codes-sym.h"
30 : #include "errnos-sym.h"
31 :
32 : /* Return a pointer to a string containing the name of the symbol of
33 : the error code in the error value ERR. Returns NULL if the error
34 : code is not known. */
35 : const char *
36 0 : gpg_strerror_sym (gpg_error_t err)
37 : {
38 : gpg_err_code_t code = gpg_err_code (err);
39 :
40 0 : if (code & GPG_ERR_SYSTEM_ERROR)
41 : {
42 : int idx;
43 :
44 0 : code &= ~GPG_ERR_SYSTEM_ERROR;
45 0 : idx = errnos_msgidxof (code);
46 0 : if (idx >= 0)
47 0 : return errnos_msgstr + errnos_msgidx[idx];
48 : else
49 : return NULL;
50 : }
51 :
52 0 : if (msgidxof (code) == msgidxof (GPG_ERR_CODE_DIM))
53 : return NULL;
54 :
55 0 : return msgstr + msgidx[msgidxof (code)];
56 : }
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