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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-09-15 10:04:05 +0200 |
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| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-10-17 18:40:06 +0200 |
| commit | 4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629 (patch) | |
| tree | 567350f56dd4ee4dd291d13199610d38dac51879 /src/Common/libzip/zip_unchange.c | |
| parent | 66891638d51351fae5cd82a88c1a64661a025de0 (diff) | |
| download | VeraCrypt-4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629.tar.gz VeraCrypt-4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629.zip | |
Windows: Replace XZip/XUnzip library with zlib and libzip and include the sources of these library into VeraCrypt source tree.
Diffstat (limited to 'src/Common/libzip/zip_unchange.c')
| -rw-r--r-- | src/Common/libzip/zip_unchange.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/Common/libzip/zip_unchange.c b/src/Common/libzip/zip_unchange.c new file mode 100644 index 00000000..5ef54621 --- /dev/null +++ b/src/Common/libzip/zip_unchange.c @@ -0,0 +1,95 @@ +/* + zip_unchange.c -- undo changes to file in zip archive + Copyright (C) 1999-2015 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> + + 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 <stdlib.h> + +#include "zipint.h" + + +ZIP_EXTERN int +zip_unchange(zip_t *za, zip_uint64_t idx) +{ + return _zip_unchange(za, idx, 0); +} + + +int +_zip_unchange(zip_t *za, zip_uint64_t idx, int allow_duplicates) +{ + zip_int64_t i; + const char *orig_name, *changed_name; + + if (idx >= za->nentry) { + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; + } + + if (!allow_duplicates && za->entry[idx].changes && (za->entry[idx].changes->changed & ZIP_DIRENT_FILENAME)) { + if (za->entry[idx].orig != NULL) { + if ((orig_name=_zip_get_name(za, idx, ZIP_FL_UNCHANGED, &za->error)) == NULL) { + return -1; + } + + i = _zip_name_locate(za, orig_name, 0, NULL); + if (i >= 0 && (zip_uint64_t)i != idx) { + zip_error_set(&za->error, ZIP_ER_EXISTS, 0); + return -1; + } + } + else { + orig_name = NULL; + } + + if ((changed_name=_zip_get_name(za, idx, 0, &za->error)) == NULL) { + return -1; + } + + if (orig_name) { + if (_zip_hash_add(za->names, (const zip_uint8_t *)orig_name, idx, 0, &za->error) == false) { + return -1; + } + } + if (_zip_hash_delete(za->names, (const zip_uint8_t *)changed_name, &za->error) == false) { + _zip_hash_delete(za->names, (const zip_uint8_t *)orig_name, NULL); + return -1; + } + } + + _zip_dirent_free(za->entry[idx].changes); + za->entry[idx].changes = NULL; + + _zip_unchange_data(za->entry+idx); + + return 0; +} |