mirror of
https://github.com/yuzu-emu/mbedtls
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00b2860e8d
After header and footer are read, pem_read_buffer() is able to determine
the length of input data used. This allows calling functions to skip
this PEM bit if an error occurs during its parsing.
(cherry picked from commit 9255e8300e)
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/**
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* \file error.h
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*
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* \brief Error to string translation
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*
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* Copyright (C) 2006-2013, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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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 2 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef POLARSSL_ERROR_H
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#define POLARSSL_ERROR_H
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#include <string.h>
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/**
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* Error code layout.
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*
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* Currently we try to keep all error codes within the negative space of 16
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* bytes signed integers to support all platforms (-0x0000 - -0x8000). In
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* addition we'd like to give two layers of information on the error if
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* possible.
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*
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* For that purpose the error codes are segmented in the following manner:
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*
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* 16 bit error code bit-segmentation
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*
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* 1 bit - Intentionally not used
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* 3 bits - High level module ID
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* 5 bits - Module-dependent error code
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* 6 bits - Low level module errors
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* 1 bit - Intentionally not used
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*
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* Low-level module errors (0x007E-0x0002)
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*
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* Module Nr Codes assigned
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* MPI 7 0x0002-0x0010
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* GCM 2 0x0012-0x0014
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* BLOWFISH 2 0x0016-0x0018
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* AES 2 0x0020-0x0022
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* CAMELLIA 2 0x0024-0x0026
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* XTEA 1 0x0028-0x0028
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* BASE64 2 0x002A-0x002C
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* OID 1 0x002E-0x002E
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* PADLOCK 1 0x0030-0x0030
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* DES 1 0x0032-0x0032
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* CTR_DBRG 3 0x0034-0x003A
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* ENTROPY 3 0x003C-0x0040
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* NET 11 0x0042-0x0056
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* ASN1 7 0x0060-0x006C
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* MD2 1 0x0070-0x0070
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* MD4 1 0x0072-0x0072
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* MD5 1 0x0074-0x0074
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* SHA1 1 0x0076-0x0076
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* SHA2 1 0x0078-0x0078
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* SHA4 1 0x007A-0x007A
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* PBKDF2 1 0x007C-0x007C
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* ECP 1 0x007E-0x007E
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*
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* High-level module nr (3 bits - 0x1...-0x8...)
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* Name ID Nr of Errors
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* PEM 1 9
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* X509 2 21
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* DHM 3 6
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* RSA 4 9
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* ECP 4 1 (Started from top)
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* MD 5 4
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* CIPHER 6 5
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* SSL 6 2 (Started from top)
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* SSL 7 31
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*
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* Module dependent error code (5 bits 0x.08.-0x.F8.)
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief Translate a PolarSSL error code into a string representation,
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* Result is truncated if necessary and always includes a terminating
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* null byte.
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*
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* \param errnum error code
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* \param buffer buffer to place representation in
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* \param buflen length of the buffer
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*/
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void error_strerror( int errnum, char *buffer, size_t buflen );
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#ifdef __cplusplus
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}
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#endif
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#endif /* error.h */
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