static int cmd_device_scan(int argc, char **argv)
{
int i;
int devstart;
int all = 0;
int ret = 0;
optind = 0;
while (1) {
int c;
static const struct option long_options[] = {
{ "all-devices", no_argument, NULL, 'd'},
{ NULL, 0, NULL, 0}
};
c = getopt_long(argc, argv, "d", long_options, NULL);
if (c < 0)
break;
switch (c) {
case 'd':
all = 1;
break;
default:
usage(cmd_device_scan_usage);
}
}
devstart = optind;
if (all && check_argc_max(argc - optind, 1))
usage(cmd_device_scan_usage);
if (all || argc - optind == 0) {
printf("Scanning for Btrfs filesystems\n");
ret = btrfs_scan_devices();
error_on(ret, "error %d while scanning", ret);
ret = btrfs_register_all_devices();
error_on(ret, "there are %d errors while registering devices", ret);
goto out;
}
for( i = devstart ; i < argc ; i++ ){
char *path;
if (is_block_device(argv[i]) != 1) {
error("not a block device: %s", argv[i]);
ret = 1;
goto out;
}
path = canonicalize_path(argv[i]);
if (!path) {
error("could not canonicalize path '%s': %m", argv[i]);
ret = 1;
goto out;
}
printf("Scanning for Btrfs filesystems in '%s'\n", path);
if (btrfs_register_one_device(path) != 0) {
ret = 1;
free(path);
goto out;
}
free(path);
}
out:
return !!ret;
}
static int cmd_scan_dev(int argc, char **argv)
{
int i;
int devstart = 1;
int all = 0;
int ret = 0;
optind = 1;
while (1) {
int c;
static const struct option long_options[] = {
{ "all-devices", no_argument, NULL, 'd'},
{ NULL, 0, NULL, 0}
};
c = getopt_long(argc, argv, "d", long_options, NULL);
if (c < 0)
break;
switch (c) {
case 'd':
all = 1;
break;
default:
usage(cmd_scan_dev_usage);
}
}
if (all && check_argc_max(argc, 2))
usage(cmd_scan_dev_usage);
if (all || argc == 1) {
printf("Scanning for Btrfs filesystems\n");
ret = btrfs_scan_lblkid();
if (ret)
fprintf(stderr, "ERROR: error %d while scanning\n", ret);
ret = btrfs_register_all_devices();
if (ret)
fprintf(stderr, "ERROR: error %d while registering\n", ret);
goto out;
}
for( i = devstart ; i < argc ; i++ ){
char *path;
if (!is_block_device(argv[i])) {
fprintf(stderr,
"ERROR: %s is not a block device\n", argv[i]);
ret = 1;
goto out;
}
path = canonicalize_path(argv[i]);
if (!path) {
fprintf(stderr,
"ERROR: Could not canonicalize path '%s': %s\n",
argv[i], strerror(errno));
ret = 1;
goto out;
}
printf("Scanning for Btrfs filesystems in '%s'\n", path);
if (btrfs_register_one_device(path) != 0) {
ret = 1;
free(path);
goto out;
}
free(path);
}
out:
return !!ret;
}
