diff options
Diffstat (limited to 'src/Common/libzip/zip_get_encryption_implementation.c')
| -rw-r--r-- | src/Common/libzip/zip_get_encryption_implementation.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/Common/libzip/zip_get_encryption_implementation.c b/src/Common/libzip/zip_get_encryption_implementation.c index c9d52ad5..72e48fe8 100644 --- a/src/Common/libzip/zip_get_encryption_implementation.c +++ b/src/Common/libzip/zip_get_encryption_implementation.c @@ -1,9 +1,9 @@ /* zip_get_encryption_implementation.c -- get encryption implementation - Copyright (C) 2009-2019 Dieter Baron and Thomas Klausner + Copyright (C) 2009-2021 Dieter Baron and Thomas Klausner This file is part of libzip, a library to manipulate ZIP archives. - The authors can be contacted at <libzip@nih.at> + The authors can be contacted at <info@libzip.org> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions @@ -39,19 +39,24 @@ zip_encryption_implementation _zip_get_encryption_implementation(zip_uint16_t em, int operation) { switch (em) { case ZIP_EM_TRAD_PKWARE: - if (operation == ZIP_CODEC_ENCODE) { - return NULL; - } - return zip_source_pkware; + return operation == ZIP_CODEC_DECODE ? zip_source_pkware_decode : zip_source_pkware_encode; #if defined(HAVE_CRYPTO) case ZIP_EM_AES_128: case ZIP_EM_AES_192: case ZIP_EM_AES_256: - return operation == ZIP_CODEC_DECODE ? zip_source_winzip_aes_decode : zip_source_winzip_aes_encode; + return operation == ZIP_CODEC_DECODE ? zip_source_winzip_aes_decode : zip_source_winzip_aes_encode; #endif default: - return NULL; + return NULL; } } + +ZIP_EXTERN int +zip_encryption_method_supported(zip_uint16_t method, int encode) { + if (method == ZIP_EM_NONE) { + return 1; + } + return _zip_get_encryption_implementation(method, encode ? ZIP_CODEC_ENCODE : ZIP_CODEC_DECODE) != NULL; +} |