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Identifying sparse files using getattrlist()
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Identifying sparse files using getattrlist()



Hello All,

I am trying to identify if a particular file is a sparse file using
getattrlist()

I am using this :     attrList.fileattr    = ATTR_FILE_TOTALSIZE |
ATTR_FILE_ALLOCSIZE;

According to the man page if  ATTR_FILE_ALLOCSIZE <
ATTR_FILE_TOTALSIZE the file is a sparse file.

I created the sparse file using dd
#dd if=/dev/zero of=sparse-file bs=1 count=0 seek=3g

However, both AllocSize and TotalSize are returning the same size
while actually AllocSize < TotalSize

I am using UFS

Thanks,
Rohan
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