view ffstools/tiffs-mkfs/main.c @ 921:74d284add54d

fc-fsio: guard against bogus readdir results from the target If the FFS being operated on contains SE K2x0 extended filenames, readdir will return strings that are bad for printing. We need to guard against this possibility, and also against possible other bogosity that could be sent by other alien firmwares.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Dec 2022 22:55:23 +0000
parents 178ed445021d
children
line wrap: on
line source

#include <sys/types.h>
#include <sys/param.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "struct.h"
#include "globals.h"

void
process_cmdline(argc, argv)
	char **argv;
{
	extern int optind;
	extern char *optarg;
	int c;

	while ((c = getopt(argc, argv, "c:f:j:Jm:")) != EOF)
		switch (c) {
		case 'c':
			chunk_size_max = strtoul(optarg, 0, 0);
			continue;
		case 'f':
			if (*optarg != '/') {
				fprintf(stderr,
				"error: format name must begin with \'/\'\n");
				exit(1);
			}
			format_name = optarg;
			continue;
		case 'j':
			journal_size = strtoul(optarg, 0, 0);
			continue;
		case 'J':
			no_journal = 1;
			continue;
		case 'm':
			block_files_max = strtoul(optarg, 0, 0);
			continue;
		default:
usage:			fprintf(stderr,
			"usage: %s [options] <org> <srcdir> <outfile>\n",
				argv[0]);
			exit(1);
		}
	if (argc - optind != 3)
		goto usage;
	parse_org_arg(argv[optind]);
	input_host_dir = argv[optind+1];
	output_filename = argv[optind+2];
}

main(argc, argv)
	char **argv;
{
	process_cmdline(argc, argv);
	if (!format_name)
		format_name = "/";
	preen_chunk_size_max();
	preen_journal_size();
	preen_block_files_max();
	/* input phase */
	read_dir_level(&root, input_host_dir, 0);
	sort_dir_level(&root);
	/* output phase */
	prepare_output_buffers();
	open_output_file();
	create_root_dir();
	process_dir_level(&root);
	if (!no_journal)
		create_journal();
	finish_output();
	close(output_fd);
	exit(0);
}