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| author | DLL125 <134442578+DLL125@users.noreply.github.com> | 2023-05-25 12:52:53 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-05-25 12:52:53 +0200 |
| commit | 1fc4168b81f565feab409b92ccb61c57a1c550eb (patch) | |
| tree | f5b54c9699aabb120f4cfa3240164fc17fd1d075 /src/Common/libzip/zip_file_set_encryption.c | |
| parent | b872702309b20f2467d58652c3b00493ac4058bd (diff) | |
| download | VeraCrypt-1fc4168b81f565feab409b92ccb61c57a1c550eb.tar.gz VeraCrypt-1fc4168b81f565feab409b92ccb61c57a1c550eb.zip | |
Update Libzip to latest 1.9.2 (#1071)
* Libzip 1.9.2
Updated Libzip to latest version 1.9.2 and changed version number in the config.h from 1.7.3 to 1.9.2. Not sure if anything else needs to be tweaked :)
* Modified Libzip to work with Visual studio
* Update README.md
Update libzip copyright.
* Added the missing files.
I've added the missing files zipconf.h and config.h, I've missed those sorry for that!
Diffstat (limited to 'src/Common/libzip/zip_file_set_encryption.c')
| -rw-r--r-- | src/Common/libzip/zip_file_set_encryption.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/Common/libzip/zip_file_set_encryption.c b/src/Common/libzip/zip_file_set_encryption.c new file mode 100644 index 00000000..41392c1f --- /dev/null +++ b/src/Common/libzip/zip_file_set_encryption.c @@ -0,0 +1,116 @@ +/* + zip_file_set_encryption.c -- set encryption for file in archive + Copyright (C) 2016-2021 Dieter Baron and Thomas Klausner + + This file is part of libzip, a library to manipulate ZIP archives. + 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 + are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + 3. The names of the authors may not be used to endorse or promote + products derived from this software without specific prior + written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS + OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#include "zipint.h" + +#include <stdlib.h> +#include <string.h> + +ZIP_EXTERN int +zip_file_set_encryption(zip_t *za, zip_uint64_t idx, zip_uint16_t method, const char *password) { + zip_entry_t *e; + zip_uint16_t old_method; + + if (idx >= za->nentry) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (ZIP_IS_RDONLY(za)) { + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + + if (method != ZIP_EM_NONE && _zip_get_encryption_implementation(method, ZIP_CODEC_ENCODE) == NULL) { + zip_error_set(&za->error, ZIP_ER_ENCRNOTSUPP, 0); + return -1; + } + + e = za->entry + idx; + + old_method = (e->orig == NULL ? ZIP_EM_NONE : e->orig->encryption_method); + + if (method == old_method && password == NULL) { + if (e->changes) { + if (e->changes->changed & ZIP_DIRENT_PASSWORD) { + _zip_crypto_clear(e->changes->password, strlen(e->changes->password)); + free(e->changes->password); + e->changes->password = (e->orig == NULL ? NULL : e->orig->password); + } + e->changes->changed &= ~(ZIP_DIRENT_ENCRYPTION_METHOD | ZIP_DIRENT_PASSWORD); + if (e->changes->changed == 0) { + _zip_dirent_free(e->changes); + e->changes = NULL; + } + } + } + else { + char *our_password = NULL; + + if (password) { + if ((our_password = strdup(password)) == NULL) { + zip_error_set(&za->error, ZIP_ER_MEMORY, 0); + return -1; + } + } + + if (e->changes == NULL) { + if ((e->changes = _zip_dirent_clone(e->orig)) == NULL) { + if (our_password) { + _zip_crypto_clear(our_password, strlen(our_password)); + } + free(our_password); + zip_error_set(&za->error, ZIP_ER_MEMORY, 0); + return -1; + } + } + + e->changes->encryption_method = method; + e->changes->changed |= ZIP_DIRENT_ENCRYPTION_METHOD; + if (password) { + e->changes->password = our_password; + e->changes->changed |= ZIP_DIRENT_PASSWORD; + } + else { + if (e->changes->changed & ZIP_DIRENT_PASSWORD) { + _zip_crypto_clear(e->changes->password, strlen(e->changes->password)); + free(e->changes->password); + e->changes->password = e->orig ? e->orig->password : NULL; + e->changes->changed &= ~ZIP_DIRENT_PASSWORD; + } + } + } + + return 0; +} |