diff options
author | Wang Shilong <wangsl.fnst@cn.fujitsu.com> | 2014-02-20 09:30:52 +0800 |
---|---|---|
committer | Chris Mason <clm@fb.com> | 2014-03-21 06:23:20 -0700 |
commit | 64fddab8ac0ad7970cf713cfecba5ab6ae90b09c (patch) | |
tree | 2687a0eb2c5810bfafe6314e0e9718f6e3d37e56 /btrfs-show-super.c | |
parent | 86da12ff869823f4dae20488f3bedeae4a55086d (diff) |
Btrfs-progs: switch to arg_strtou64() part3
Switch to new helper arg_strtou64(), also check if user assign
a valid super copy.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'btrfs-show-super.c')
-rw-r--r-- | btrfs-show-super.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/btrfs-show-super.c b/btrfs-show-super.c index b87f16a4..d4df0ac6 100644 --- a/btrfs-show-super.c +++ b/btrfs-show-super.c @@ -59,17 +59,17 @@ int main(int argc, char **argv) int all = 0; char *filename; int fd = -1; - int arg, i; + int i; + u64 arg; u64 sb_bytenr = btrfs_sb_offset(0); while ((opt = getopt(argc, argv, "ai:")) != -1) { switch (opt) { case 'i': - arg = atoi(optarg); - - if (arg < 0 || arg >= BTRFS_SUPER_MIRROR_MAX) { + arg = arg_strtou64(optarg); + if (arg >= BTRFS_SUPER_MIRROR_MAX) { fprintf(stderr, - "Illegal super_mirror %d\n", + "Illegal super_mirror %llu\n", arg); print_usage(); exit(1); |