OS X: fix raw device size detection.

Each disk has two names: /dev/diskN (block device) and /dev/rdiskN (raw
device).

diff --git a/libexfat/io.c b/libexfat/io.c
index e9672fb..e7dcd79 100644 (file)
--- a/libexfat/io.c
+++ b/libexfat/io.c
@@ -147,7 +147,7 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
        }
 
 #ifdef __APPLE__
-       if (S_ISBLK(stbuf.st_mode))
+       if (!S_ISREG(stbuf.st_mode))
        {
                uint32_t block_size = 0;
                uint64_t blocks = 0;