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Viewing changes to libclamav/unrar/unrarfilter.c

  • Committer: nervoso
  • Date: 2006-05-21 15:16:39 UTC
  • Revision ID: Arch-1:clamav@arch.ubuntu.com%clamav--MAIN--0--patch-1959
repository moved to cvs.clamav.net

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libclamav/unrar/unrarfilter.c
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/*
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 *  Extract RAR archives
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 *
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 *  Copyright (C) 2005 trog@uncon.org
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 *
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 *  This code is based on the work of Alexander L. Roshal
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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 *  MA 02110-1301, USA.
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 */
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#include <unistd.h>
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#include "unrar.h"
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#include "unrarfilter.h"
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void rar_filter_array_init(rar_filter_array_t *filter_a)
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{
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        filter_a->array = NULL;
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        filter_a->num_items = 0;
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}
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void rar_filter_array_reset(rar_filter_array_t *filter_a)
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{
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        int i;
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        if (!filter_a) {
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                return;
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        }
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        for (i=0 ; i < filter_a->num_items ; i++) {
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                rar_filter_delete(filter_a->array[i]);
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        }
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        if (filter_a->array) {
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                free(filter_a->array);
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        }
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        filter_a->array = NULL;
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        filter_a->num_items = 0;
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}
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int rar_filter_array_add(rar_filter_array_t *filter_a, int num)
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{
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        filter_a->num_items += num;
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        filter_a->array = (struct UnpackFilter **) realloc(filter_a->array,
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                        filter_a->num_items * sizeof(struct UnpackFilter **));
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        if (filter_a->array == NULL) {
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                filter_a->num_items=0;
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                return FALSE;
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        }
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        filter_a->array[filter_a->num_items-1] = NULL;
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        return TRUE;
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}
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struct UnpackFilter *rar_filter_new(void)
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{
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        struct UnpackFilter *filter;
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        filter = (struct UnpackFilter *) malloc(sizeof(struct UnpackFilter));
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        if (!filter) {
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                return NULL;
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        }
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        filter->block_start = 0;
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        filter->block_length = 0;
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        filter->exec_count = 0;
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        filter->next_window = 0;
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        rar_cmd_array_init(&filter->prg.cmd);
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        filter->prg.global_data = NULL;
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        filter->prg.static_data = NULL;
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        filter->prg.global_size = filter->prg.static_size = 0;
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        filter->prg.filtered_data = NULL;
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        filter->prg.filtered_data_size = 0;
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        return filter;
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}
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void rar_filter_delete(struct UnpackFilter *filter)
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{
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        if (!filter) {
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                return;
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        }
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        if (filter->prg.global_data) {
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                free(filter->prg.global_data);
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        }
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        if (filter->prg.static_data) {
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                free(filter->prg.static_data);
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        }
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        rar_cmd_array_reset(&filter->prg.cmd);
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        free(filter);
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}