File: sardec.cpp

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/* -*- C++ -*-
 *
 *  sardec.cpp - SAR archive decoder
 *
 *  Copyright (c) 2001-2004 Ogapee. All rights reserved.
 *
 *  ogapee@aqua.dti2.ne.jp
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include "SarReader.h"

extern int errno;

int main(int argc, char** argv)
{
    SarReader cSR;
    unsigned long length, buffer_length = 0;
    unsigned char* buffer = NULL;
    char file_name[256], dir_name[256];
    unsigned int i, j, count;
    FILE* fp;
    struct stat file_stat;

    if (argc != 2) {
        fprintf(stderr, "Usage: sardec arc_file\n");
        exit(-1);
    }
    if (cSR.open(argv[1]) != 0) {
        fprintf(stderr, "can't open file %s\n", argv[1]);
        exit(-1);
    }
    count = cSR.getNumFiles();

    SarReader::FileInfo sFI;

    for (i = 0; i < count; i++) {
        sFI = cSR.getFileByIndex(i);

        length = cSR.getFileLength(sFI.name);

        if (length > buffer_length) {
            if (buffer) delete[] buffer;
            buffer = new unsigned char[length];
            buffer_length = length;
        }
        if (cSR.getFile(sFI.name, buffer) != length) {
            fprintf(stderr, "file %s can't be retrieved\n", sFI.name);
            continue;
        }

        strcpy(file_name, sFI.name);
        for (j = 0; j < strlen(file_name); j++) {
            if (file_name[j] == '\\') {
                file_name[j] = '/';
                strncpy(dir_name, file_name, j);
                dir_name[j] = '\0';

                /* If the directory does'nt exist, create it */
                if (stat(dir_name, &file_stat) == -1 && errno == ENOENT)
                    mkdir(dir_name, 00755);
            }
        }

        printf("opening %s\n", file_name);
        if ((fp = fopen(file_name, "wb"))) {
            fwrite(buffer, 1, length, fp);
            fclose(fp);
        }
        else {
            printf(" ... falied\n");
        }
    }

    if (buffer) delete[] buffer;

    exit(0);
}