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/*
* Copyright (C) 2006 Free Software Foundation, Inc.
* Copyright (C) 2002, 2005 Fabio Fiorina
*
* This file is part of LIBTASN1.
*
* The LIBTASN1 library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*/
#include <int.h>
#include "errors.h"
#ifdef STDC_HEADERS
# include <stdarg.h>
#endif
#define LIBTASN1_ERROR_ENTRY(name) \
{ #name, name }
struct libtasn1_error_entry
{
const char *name;
int number;
};
typedef struct libtasn1_error_entry libtasn1_error_entry;
static const libtasn1_error_entry error_algorithms[] = {
LIBTASN1_ERROR_ENTRY (ASN1_SUCCESS),
LIBTASN1_ERROR_ENTRY (ASN1_FILE_NOT_FOUND),
LIBTASN1_ERROR_ENTRY (ASN1_ELEMENT_NOT_FOUND),
LIBTASN1_ERROR_ENTRY (ASN1_IDENTIFIER_NOT_FOUND),
LIBTASN1_ERROR_ENTRY (ASN1_DER_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_VALUE_NOT_FOUND),
LIBTASN1_ERROR_ENTRY (ASN1_GENERIC_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_VALUE_NOT_VALID),
LIBTASN1_ERROR_ENTRY (ASN1_TAG_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_TAG_IMPLICIT),
LIBTASN1_ERROR_ENTRY (ASN1_ERROR_TYPE_ANY),
LIBTASN1_ERROR_ENTRY (ASN1_SYNTAX_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_MEM_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_MEM_ALLOC_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_DER_OVERFLOW),
LIBTASN1_ERROR_ENTRY (ASN1_NAME_TOO_LONG),
LIBTASN1_ERROR_ENTRY (ASN1_ARRAY_ERROR),
LIBTASN1_ERROR_ENTRY (ASN1_ELEMENT_NOT_EMPTY),
{0}
};
#define LIBTASN1_ERROR_LOOP(b) \
const libtasn1_error_entry *p; \
for(p = error_algorithms; p->name != NULL; p++) { b ; }
#define LIBTASN1_ERROR_ALG_LOOP(a) \
LIBTASN1_ERROR_LOOP( if(p->number == error) { a; break; } )
/**
* libtasn1_perror - prints a string to stderr with a description of an error
* @error: is an error returned by a libtasn1 function.
*
* This function is like perror(). The only difference is that it
* accepts an error returned by a libtasn1 function.
**/
void
libtasn1_perror (asn1_retCode error)
{
const char *ret = NULL;
/* avoid prefix */
LIBTASN1_ERROR_ALG_LOOP (ret = p->name + sizeof ("ASN1_") - 1);
fprintf (stderr, "LIBTASN1 ERROR: %s\n", ret);
}
/**
* libtasn1_strerror - Returns a string with a description of an error
* @error: is an error returned by a libtasn1 function.
*
* This function is similar to strerror(). The only difference is
* that it accepts an error (number) returned by a libtasn1 function.
*
* Returns: Pointer to static zero-terminated string describing error
* code.
**/
const char *
libtasn1_strerror (asn1_retCode error)
{
const char *ret = NULL;
/* avoid prefix */
LIBTASN1_ERROR_ALG_LOOP (ret = p->name + sizeof ("ASN1_") - 1);
return ret;
}
/* this function will output a message.
*/
#ifdef LIBTASN1_DEBUG
void
_libtasn1_log (const char *fmt, ...)
{
va_list args;
char str[MAX_LOG_SIZE];
va_start (args, fmt);
vsprintf (str, fmt, args); /* Flawfinder: ignore */
va_end (args);
fprintf (stderr, str);
return;
}
#else /* not DEBUG */
void
_libtasn1_log (const char *fmt, ...)
{
return;
}
#endif /* DEBUG */
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