Klas Lindfors
107 lines
3.5 KiB
C
107 lines
3.5 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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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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ERR (YKPIV_PARSE_ERROR, "Parse error"),
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ERR (YKPIV_WRONG_PIN, "Wrong PIN code"),
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ERR (YKPIV_INVALID_OBJECT, "Object invalid"),
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ERR (YKPIV_ALGORITHM_ERROR, "Algorithm error"),
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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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