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136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
/*
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* Copyright (C) 2006 Free Software Foundation, Inc.
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* Copyright (C) 2002, 2005 Fabio Fiorina
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*
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* This file is part of LIBTASN1.
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*
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* The LIBTASN1 library is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#include <int.h>
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#include "errors.h"
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#ifdef STDC_HEADERS
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# include <stdarg.h>
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#endif
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#define LIBTASN1_ERROR_ENTRY(name) \
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{ #name, name }
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struct MHD__libtasn1_error_entry
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{
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const char *name;
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int number;
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};
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typedef struct MHD__libtasn1_error_entry MHD__libtasn1_error_entry;
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static const MHD__libtasn1_error_entry error_algorithms[] = {
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LIBTASN1_ERROR_ENTRY (ASN1_SUCCESS),
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LIBTASN1_ERROR_ENTRY (ASN1_FILE_NOT_FOUND),
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LIBTASN1_ERROR_ENTRY (ASN1_ELEMENT_NOT_FOUND),
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LIBTASN1_ERROR_ENTRY (ASN1_IDENTIFIER_NOT_FOUND),
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LIBTASN1_ERROR_ENTRY (ASN1_DER_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_VALUE_NOT_FOUND),
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LIBTASN1_ERROR_ENTRY (ASN1_GENERIC_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_VALUE_NOT_VALID),
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LIBTASN1_ERROR_ENTRY (ASN1_TAG_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_TAG_IMPLICIT),
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LIBTASN1_ERROR_ENTRY (ASN1_ERROR_TYPE_ANY),
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LIBTASN1_ERROR_ENTRY (ASN1_SYNTAX_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_MEM_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_MEM_ALLOC_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_DER_OVERFLOW),
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LIBTASN1_ERROR_ENTRY (ASN1_NAME_TOO_LONG),
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LIBTASN1_ERROR_ENTRY (ASN1_ARRAY_ERROR),
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LIBTASN1_ERROR_ENTRY (ASN1_ELEMENT_NOT_EMPTY),
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{0}
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};
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#define LIBTASN1_ERROR_LOOP(b) \
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const MHD__libtasn1_error_entry *p; \
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for(p = error_algorithms; p->name != NULL; p++) { b ; }
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#define LIBTASN1_ERROR_ALG_LOOP(a) \
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LIBTASN1_ERROR_LOOP( if(p->number == error) { a; break; } )
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/**
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* MHD__libtasn1_perror - prints a string to stderr with a description of an error
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* @error: is an error returned by a libtasn1 function.
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*
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* This function is like perror(). The only difference is that it
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* accepts an error returned by a libtasn1 function.
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**/
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void
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MHD__libtasn1_perror (MHD__asn1_retCode error)
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{
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const char *ret = NULL;
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/* avoid prefix */
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LIBTASN1_ERROR_ALG_LOOP (ret = p->name + sizeof ("ASN1_") - 1);
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fprintf (stderr, "LIBTASN1 ERROR: %s\n", ret);
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}
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/**
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* MHD__libtasn1_strerror - Returns a string with a description of an error
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* @error: is an error returned by a libtasn1 function.
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*
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* This function is similar to strerror(). The only difference is
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* that it accepts an error (number) returned by a libtasn1 function.
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*
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* Returns: Pointer to static zero-terminated string describing error
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* code.
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**/
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const char *
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MHD__libtasn1_strerror (MHD__asn1_retCode error)
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{
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const char *ret = NULL;
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/* avoid prefix */
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LIBTASN1_ERROR_ALG_LOOP (ret = p->name + sizeof ("ASN1_") - 1);
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return ret;
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}
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/* this function will output a message.
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*/
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#ifdef LIBTASN1_DEBUG
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void
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MHD__libtasn1_log (const char *fmt, ...)
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{
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va_list args;
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char str[MAX_LOG_SIZE];
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va_start (args, fmt);
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vsprintf (str, fmt, args); /* Flawfinder: ignore */
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va_end (args);
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fprintf (stderr, str);
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return;
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}
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#else /* not DEBUG */
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void
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MHD__libtasn1_log (const char *fmt, ...)
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{
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return;
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}
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#endif /* DEBUG */
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