mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-11-23 05:19:56 +00:00
83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/*
|
|
zip_file_set_external_attributes.c -- set external attributes for entry
|
|
Copyright (C) 2013-2019 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 "zipint.h"
|
|
|
|
ZIP_EXTERN int
|
|
zip_file_set_external_attributes(zip_t *za, zip_uint64_t idx, zip_flags_t flags, zip_uint8_t opsys, zip_uint32_t attributes) {
|
|
zip_entry_t *e;
|
|
int changed;
|
|
zip_uint8_t unchanged_opsys;
|
|
zip_uint32_t unchanged_attributes;
|
|
|
|
if (_zip_get_dirent(za, idx, 0, NULL) == NULL)
|
|
return -1;
|
|
|
|
if (ZIP_IS_RDONLY(za)) {
|
|
zip_error_set(&za->error, ZIP_ER_RDONLY, 0);
|
|
return -1;
|
|
}
|
|
|
|
e = za->entry + idx;
|
|
|
|
unchanged_opsys = (e->orig ? (zip_uint8_t)(e->orig->version_madeby >> 8) : (zip_uint8_t)ZIP_OPSYS_DEFAULT);
|
|
unchanged_attributes = e->orig ? e->orig->ext_attrib : ZIP_EXT_ATTRIB_DEFAULT;
|
|
|
|
changed = (opsys != unchanged_opsys || attributes != unchanged_attributes);
|
|
|
|
if (changed) {
|
|
if (e->changes == NULL) {
|
|
if ((e->changes = _zip_dirent_clone(e->orig)) == NULL) {
|
|
zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
|
|
return -1;
|
|
}
|
|
}
|
|
e->changes->version_madeby = (zip_uint16_t)((opsys << 8) | (e->changes->version_madeby & 0xff));
|
|
e->changes->ext_attrib = attributes;
|
|
e->changes->changed |= ZIP_DIRENT_ATTRIBUTES;
|
|
}
|
|
else if (e->changes) {
|
|
e->changes->changed &= ~ZIP_DIRENT_ATTRIBUTES;
|
|
if (e->changes->changed == 0) {
|
|
_zip_dirent_free(e->changes);
|
|
e->changes = NULL;
|
|
}
|
|
else {
|
|
e->changes->version_madeby = (zip_uint16_t)((unchanged_opsys << 8) | (e->changes->version_madeby & 0xff));
|
|
e->changes->ext_attrib = unchanged_attributes;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|