mirror of https://github.com/PCSX2/pcsx2.git
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
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/*
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zip_get_encryption_implementation.c -- get encryption implementation
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Copyright (C) 2009-2021 Dieter Baron and Thomas Klausner
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This file is part of libzip, a library to manipulate ZIP archives.
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The authors can be contacted at <info@libzip.org>
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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
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are met:
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1. 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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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. The names of the authors may not be used to endorse or promote
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products derived from this software without specific prior
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written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "zipint.h"
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zip_encryption_implementation
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_zip_get_encryption_implementation(zip_uint16_t em, int operation) {
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switch (em) {
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case ZIP_EM_TRAD_PKWARE:
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return operation == ZIP_CODEC_DECODE ? zip_source_pkware_decode : zip_source_pkware_encode;
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#if defined(HAVE_CRYPTO)
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case ZIP_EM_AES_128:
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case ZIP_EM_AES_192:
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case ZIP_EM_AES_256:
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return operation == ZIP_CODEC_DECODE ? zip_source_winzip_aes_decode : zip_source_winzip_aes_encode;
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#endif
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default:
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return NULL;
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}
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}
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ZIP_EXTERN int
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zip_encryption_method_supported(zip_uint16_t method, int encode) {
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if (method == ZIP_EM_NONE) {
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return 1;
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}
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return _zip_get_encryption_implementation(method, encode ? ZIP_CODEC_ENCODE : ZIP_CODEC_DECODE) != NULL;
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}
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