[PATCH 02/17] mkfs: sanitise ftype parameter values.

Jan Ťulák
2015-06-19T11:02:24Z

From: Dave Chinner <dchinner@redhat.com>

Because passing "-n ftype=2" should fail.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Jan Ťulák <jtulak@redhat.com>
---
mkfs/xfs_mkfs.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index d0de90d..1652903 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -1617,12 +1617,15 @@ _("cannot specify both crc and ftype\n"));
reqval('n', nopts, N_FTYPE);
if (nftype)
respec('n', nopts, N_FTYPE);
- dirftype = atoi(value);
+ c = atoi(value);
+ if (c < 0 || c > 1)
+ illegal(value, "n ftype");
if (crcs_enabled) {
fprintf(stderr,
_("cannot specify both crc and ftype\n"));
usage();
}
+ dirftype = c;
nftype = 1;
break;
default:
--
2.1.0