89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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zip_stat_index.c -- get information about file by index
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Copyright (C) 1999-2009 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 <libzip@nih.at>
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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_EXTERN int
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zip_stat_index(struct zip *za, zip_uint64_t index, zip_flags_t flags,
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struct zip_stat *st)
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{
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const char *name;
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struct zip_dirent *de;
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if ((de=_zip_get_dirent(za, index, flags, NULL)) == NULL)
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return -1;
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if ((name=zip_get_name(za, index, flags)) == NULL)
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return -1;
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if ((flags & ZIP_FL_UNCHANGED) == 0
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&& ZIP_ENTRY_DATA_CHANGED(za->entry+index)) {
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if (zip_source_stat(za->entry[index].source, st) < 0) {
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_zip_error_set(&za->error, ZIP_ER_CHANGED, 0);
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return -1;
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}
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}
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else {
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zip_stat_init(st);
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st->crc = de->crc;
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st->size = de->uncomp_size;
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st->mtime = de->last_mod;
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st->comp_size = de->comp_size;
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st->comp_method = (zip_uint16_t)de->comp_method;
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if (de->bitflags & ZIP_GPBF_ENCRYPTED) {
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if (de->bitflags & ZIP_GPBF_STRONG_ENCRYPTION) {
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/* TODO */
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st->encryption_method = ZIP_EM_UNKNOWN;
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}
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else
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st->encryption_method = ZIP_EM_TRAD_PKWARE;
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}
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else
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st->encryption_method = ZIP_EM_NONE;
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st->valid = ZIP_STAT_CRC|ZIP_STAT_SIZE|ZIP_STAT_MTIME
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|ZIP_STAT_COMP_SIZE|ZIP_STAT_COMP_METHOD|ZIP_STAT_ENCRYPTION_METHOD;
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}
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st->index = index;
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st->name = name;
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st->valid |= ZIP_STAT_INDEX|ZIP_STAT_NAME;
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return 0;
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}
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