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91 lines
3 KiB
C
91 lines
3 KiB
C
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/*
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zip_stat_index.c -- get information about file by index
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Copyright (C) 1999-2007 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, int index, int flags, struct zip_stat *st)
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{
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const char *name;
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if (index < 0 || index >= za->nentry) {
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_zip_error_set(&za->error, ZIP_ER_INVAL, 0);
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return -1;
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}
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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 (za->entry[index].source->f(za->entry[index].source->ud,
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st, sizeof(*st), ZIP_SOURCE_STAT) < 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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if (za->cdir == NULL || index >= za->cdir->nentry) {
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_zip_error_set(&za->error, ZIP_ER_INVAL, 0);
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return -1;
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}
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st->crc = za->cdir->entry[index].crc;
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st->size = za->cdir->entry[index].uncomp_size;
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st->mtime = za->cdir->entry[index].last_mod;
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st->comp_size = za->cdir->entry[index].comp_size;
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st->comp_method = za->cdir->entry[index].comp_method;
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if (za->cdir->entry[index].bitflags & ZIP_GPBF_ENCRYPTED) {
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if (za->cdir->entry[index].bitflags & ZIP_GPBF_STRONG_ENCRYPTION) {
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/* XXX */
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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->bitflags = za->cdir->entry[index].bitflags; */
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}
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st->index = index;
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st->name = name;
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return 0;
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}
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