How to find the format of a disk volume

Question

I am updating a backup utility I have written and have on the Mac App store.

In a Macintosh Cocoa application, how do I find how a disk volume is formatted? The only official thing I find, is doing a GetResourceValue: for 'NSURLVolumeLocalizedFormatDescriptionKey', but that is language dependent.

My utility does not support volumes formatted for FAT32. My utility needs to do special handling for XSan drives.

Answer 1

statfs(2) will give you a non-localized name:

struct statfs volinfo;
if(statfs("/path/to/your/volume", &volinfo) != 0)
{
  perror("statfs");
  return -1;
}

fprintf(stderr, "%s\n", volinfo.f_fstypename);

See /System/Library/Filesystems for the names that will be returned in f_fstypename .

Answer 2

This question has been answered but I'll throw my 2 cents in...

/sbin/mount | grep acfs | awk '{print $3}'

This outputs

/Volumes/XsanVolumeName1
/Volumes/XsanVolumeName2