96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/*
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* Copyright (c) 2007 Vreixo Formoso
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*
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* This file is part of the libisofs project; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See COPYING file for details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "libisofs.h"
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/*
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* Little test program that extracts a file form a given ISO image.
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* Outputs file contents to stdout!
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*/
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int main(int argc, char **argv)
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{
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int res;
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IsoFilesystem *fs;
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IsoFileSource *file;
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struct stat info;
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IsoDataSource *src;
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IsoReadOpts *opts;
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if (argc != 3) {
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fprintf(stderr, "Usage: isocat /path/to/image /path/to/file\n");
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return 1;
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}
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res = iso_init();
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if (res < 0) {
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fprintf(stderr, "Can't init libisofs\n");
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return 1;
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}
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res = iso_data_source_new_from_file(argv[1], &src);
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if (res < 0) {
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fprintf(stderr, "Error creating data source\n");
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return 1;
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}
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res = iso_read_opts_new(&opts, 0);
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if (res < 0) {
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fprintf(stderr, "Error creating read options\n");
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return 1;
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}
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res = iso_image_filesystem_new(src, opts, 1, &fs);
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if (res < 0) {
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fprintf(stderr, "Error creating filesystem\n");
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return 1;
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}
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iso_read_opts_free(opts);
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res = fs->get_by_path(fs, argv[2], &file);
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if (res < 0) {
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fprintf(stderr, "Can't get file, err = %d\n", res);
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return 1;
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}
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res = iso_file_source_lstat(file, &info);
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if (res < 0) {
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fprintf(stderr, "Can't stat file, err = %d\n", res);
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return 1;
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}
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if (S_ISDIR(info.st_mode)) {
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fprintf(stderr, "Path refers to a directory!!\n");
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return 1;
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} else {
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char buf[1024];
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res = iso_file_source_open(file);
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if (res < 0) {
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fprintf(stderr, "Can't open file, err = %d\n", res);
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return 1;
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}
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while ((res = iso_file_source_read(file, buf, 1024)) > 0) {
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fwrite(buf, 1, res, stdout);
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}
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if (res < 0) {
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fprintf(stderr, "Error reading, err = %d\n", res);
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return 1;
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}
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iso_file_source_close(file);
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}
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iso_file_source_unref(file);
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iso_filesystem_unref(fs);
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iso_data_source_unref(src);
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iso_finish();
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return 0;
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}
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