Klas Lindfors
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
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* Copyright (c) 2014 Yubico AB
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* All rights reserved.
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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, either version 3 of the License, or
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* (at your option) any later version.
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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, see <http://www.gnu.org/licenses/>.
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*
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* Additional permission under GNU GPL version 3 section 7
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*
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* If you modify this program, or any covered work, by linking or
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* combining it with the OpenSSL project's OpenSSL library (or a
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* modified version of that library), containing parts covered by the
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* terms of the OpenSSL or SSLeay licenses, We grant you additional
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* permission to convey the resulting work. Corresponding Source for a
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* non-source form of such a combination shall include the source code
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* for the parts of OpenSSL used as well as that of the covered work.
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*
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*/
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#include "ykpiv.h"
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#include <stddef.h>
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#define ERR(name, desc) { name, #name, desc }
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typedef struct
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{
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ykpiv_rc rc;
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const char *name;
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const char *description;
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} err_t;
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static const err_t errors[] = {
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ERR (YKPIV_OK, "Successful return"),
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ERR (YKPIV_MEMORY_ERROR, "Error allocating memory"),
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ERR (YKPIV_PCSC_ERROR, "Error in PCSC call"),
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ERR (YKPIV_SIZE_ERROR, "Wrong buffer size"),
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ERR (YKPIV_APPLET_ERROR, "No PIV applet found"),
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ERR (YKPIV_AUTHENTICATION_ERROR, "Error during authentication"),
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ERR (YKPIV_RANDOMNESS_ERROR, "Error getting randomness"),
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ERR (YKPIV_GENERIC_ERROR, "Something went wrong."),
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ERR (YKPIV_KEY_ERROR, "Error in key"),
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};
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/**
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* ykpiv_strerror:
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* @err: error code
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*
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* Convert return code to human readable string explanation of the
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* reason for the particular error code.
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*
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* This string can be used to output a diagnostic message to the user.
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*
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* Return value: Returns a pointer to a statically allocated string
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* containing an explanation of the error code @err.
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**/
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const char *ykpiv_strerror(ykpiv_rc err) {
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static const char *unknown = "Unknown ykpiv error";
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const char *p;
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if (-err < 0 || -err >= (int) (sizeof (errors) / sizeof (errors[0])))
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return unknown;
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p = errors[-err].description;
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if (!p)
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p = unknown;
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return p;
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}
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/**
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* ykpiv_strerror_name:
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* @err: error code
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*
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* Convert return code to human readable string representing the error
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* code symbol itself. For example, ykpiv_strerror_name(%YKPIV_OK)
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* returns the string "YKPIV_OK".
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*
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* This string can be used to output a diagnostic message to the user.
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*
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* Return value: Returns a pointer to a statically allocated string
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* containing a string version of the error code @err, or NULL if
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* the error code is not known.
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**/
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const char *ykpiv_strerror_name(ykpiv_rc err) {
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if (-err < 0 || -err >= (int) (sizeof (errors) / sizeof (errors[0])))
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return NULL;
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return errors[-err].name;
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}
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