'btrfs fi df' needs exactly one arguments as mount option,
but as 3.17 we can run 'btrfs fi df' without any argument,
and it will error as "ERROR: can't access '%s'" which means
the argument number does not do what it should.
The bug is caused by manually modify the optind and use check_argc_max()
instead of the original check_argc_exact().
This patch fixes it by not modifying the optind and use check_argc_exact()
again.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
DIR *dirstream = NULL;
unsigned unit_mode = UNITS_DEFAULT;
- optind = 1;
while (1) {
int long_index;
static const struct option long_options[] = {
}
}
- if (check_argc_max(argc, optind + 1))
+ if (check_argc_exact(argc, optind + 1))
usage(cmd_df_usage);
path = argv[optind];