diff options
| -rw-r--r-- | block/raw-posix.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c index 7b42f37..e474c17 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -1375,7 +1375,20 @@ again: if (size == 0) #endif #if defined(__APPLE__) && defined(__MACH__) - size = LLONG_MAX; + { + uint64_t sectors = 0; + uint32_t sector_size = 0; + + if (ioctl(fd, DKIOCGETBLOCKCOUNT, §ors) == 0 + && ioctl(fd, DKIOCGETBLOCKSIZE, §or_size) == 0) { + size = sectors * sector_size; + } else { + size = lseek(fd, 0LL, SEEK_END); + if (size < 0) { + return -errno; + } + } + } #else size = lseek(fd, 0LL, SEEK_END); if (size < 0) { |