static int cmd_device_usage(int argc, char **argv)
{
unsigned unit_mode;
int ret = 0;
int i;
unit_mode = get_unit_mode_from_arg(&argc, argv, 1);
clean_args_no_options(argc, argv, cmd_device_usage_usage);
if (check_argc_min(argc - optind, 1))
usage(cmd_device_usage_usage);
for (i = optind; i < argc; i++) {
int fd;
DIR *dirstream = NULL;
if (i > 1)
printf("\n");
fd = btrfs_open_dir(argv[i], &dirstream, 1);
if (fd < 0) {
ret = 1;
break;
}
ret = _cmd_device_usage(fd, argv[i], unit_mode);
close_file_or_dir(fd, dirstream);
if (ret)
break;
}
return !!ret;
}
int cmd_device_usage(int argc, char **argv)
{
unsigned unit_mode = UNITS_DEFAULT;
int ret = 0;
int i, more_than_one = 0;
optind = 1;
while (1) {
int c;
static const struct option long_options[] = {
{ "raw", no_argument, NULL, 'b'},
{ "kbytes", no_argument, NULL, 'k'},
{ "mbytes", no_argument, NULL, 'm'},
{ "gbytes", no_argument, NULL, 'g'},
{ "tbytes", no_argument, NULL, 't'},
{ "si", no_argument, NULL, GETOPT_VAL_SI},
{ "iec", no_argument, NULL, GETOPT_VAL_IEC},
{ "human-readable", no_argument, NULL,
GETOPT_VAL_HUMAN_READABLE},
{ NULL, 0, NULL, 0 }
};
c = getopt_long(argc, argv, "bhHkmgt", long_options, NULL);
if (c < 0)
break;
switch (c) {
case 'b':
unit_mode = UNITS_RAW;
break;
case 'k':
units_set_base(&unit_mode, UNITS_KBYTES);
break;
case 'm':
units_set_base(&unit_mode, UNITS_MBYTES);
break;
case 'g':
units_set_base(&unit_mode, UNITS_GBYTES);
break;
case 't':
units_set_base(&unit_mode, UNITS_TBYTES);
break;
case GETOPT_VAL_HUMAN_READABLE:
case 'h':
unit_mode = UNITS_HUMAN_BINARY;
break;
case 'H':
unit_mode = UNITS_HUMAN_DECIMAL;
break;
case GETOPT_VAL_SI:
units_set_mode(&unit_mode, UNITS_DECIMAL);
break;
case GETOPT_VAL_IEC:
units_set_mode(&unit_mode, UNITS_BINARY);
break;
default:
usage(cmd_device_usage_usage);
}
}
if (check_argc_min(argc - optind, 1))
usage(cmd_device_usage_usage);
for (i = optind; i < argc ; i++) {
int fd;
DIR *dirstream = NULL;
if (more_than_one)
printf("\n");
fd = open_file_or_dir(argv[i], &dirstream);
if (fd < 0) {
fprintf(stderr, "ERROR: can't access '%s'\n",
argv[1]);
ret = 1;
goto out;
}
ret = _cmd_device_usage(fd, argv[i], unit_mode);
close_file_or_dir(fd, dirstream);
if (ret)
goto out;
more_than_one = 1;
}
out:
return !!ret;
}
