status_t
read_table_of_contents(int fd, scsi_toc_toc *toc, size_t length)
{
status_t status = read_table_of_contents(fd, 1, SCSI_TOC_FORMAT_TOC,
(uint8*)toc, length);
if (status < B_OK)
return status;
// make sure the values in the TOC make sense
int32 lastTrack = toc->last_track + 1 - toc->first_track;
size_t dataLength = B_BENDIAN_TO_HOST_INT16(toc->data_length) + 2;
if (dataLength < sizeof(scsi_toc_toc) || lastTrack <= 0)
return B_BAD_DATA;
if (length > dataLength)
length = dataLength;
length -= sizeof(scsi_toc_general);
if (lastTrack * sizeof(scsi_toc_track) > length)
toc->last_track = length / sizeof(scsi_toc_track) + toc->first_track;
dump_toc(toc);
return B_OK;
}
/* Work through command-line options */
static int parse_cmdline(int argc, char **argv, struct option *options,
int *do_pack)
{
int c;
int status = 0;
int option_index = 0;
entry_lookup_list_t *lookup_entry;
int do_dump = 0;
/* restart parse to process all options. starts at 1. */
optind = 1;
while (1) {
c = getopt_long(argc, argv, "", options, &option_index);
if (c == -1)
break;
switch (c) {
case OPT_TOC_ENTRY:
if (optarg) {
/* Does the option expect a filename. */
lookup_entry = &toc_entry_lookup_list[option_index];
if (lookup_entry->flags & FLAG_FILENAME) {
status = add_file_info_entry(lookup_entry, optarg);
if (status != 0) {
printf("Failed to process %s\n",
options[option_index].name);
return status;
} else {
/* Update package */
*do_pack = 1;
}
}
}
break;
case OPT_DUMP:
do_dump = 1;
continue;
case OPT_HELP:
print_usage();
exit(0);
default:
/* Unrecognised options are caught in get_filename() */
break;
}
}
/* Do not dump toc if we have an error as it could hide the error */
if ((status == 0) && (do_dump)) {
dump_toc();
}
return status;
}
