libblkid-tiny: fix SquashFS version detection on different endian systems

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

diff --git a/libblkid-tiny/squashfs.c b/libblkid-tiny/squashfs.c
index d04f0b1..79588e7 100644 (file)
--- a/libblkid-tiny/squashfs.c
+++ b/libblkid-tiny/squashfs.c
@@ -53,12 +53,12 @@ static int probe_squashfs(blkid_probe pr, const struct blkid_idmag *mag)
        if (strcmp(mag->magic, "sqsh") == 0 ||
            strcmp(mag->magic, "qshs") == 0)
                blkid_probe_sprintf_version(pr, "%u.%u",
-                               sq->s_major,
-                               sq->s_minor);
+                               be16_to_cpu(sq->s_major),
+                               be16_to_cpu(sq->s_minor));
        else
                blkid_probe_sprintf_version(pr, "%u.%u",
-                               swab16(sq->s_major),
-                               swab16(sq->s_minor));
+                               le16_to_cpu(sq->s_major),
+                               le16_to_cpu(sq->s_minor));
        md5_begin(&ctx);
        md5_hash(sq, sizeof(*sq), &ctx);
        md5_end(&md5, &ctx);
@@ -74,12 +74,12 @@ const struct blkid_idinfo squashfs_idinfo =
        .probefunc      = probe_squashfs,
        .magics         =
        {
-               { .magic = "sqsh", .len = 4 },
-               { .magic = "hsqs", .len = 4 }, /* swap */
+               { .magic = "sqsh", .len = 4 }, /* BE legacy squashfs */
+               { .magic = "hsqs", .len = 4 }, /* LE / v4 squashfs */
 
                /* LZMA version */
-               { .magic = "qshs", .len = 4 },
-               { .magic = "shsq", .len = 4 }, /* swap */
+               { .magic = "qshs", .len = 4 }, /* BE legacy squashfs with LZMA */
+               { .magic = "shsq", .len = 4 }, /* LE / v4 squashfs with LZMA */
                { NULL }
        }
 };