Xref: utzoo comp.bugs.sys5:456 comp.unix.wizards:9042 Path: utzoo!attcan!uunet!husc6!mailrus!ames!oliveb!sun!gorodish!guy From: guy@gorodish.Sun.COM (Guy Harris) Newsgroups: comp.bugs.sys5,comp.unix.wizards Subject: Re: File System Type (statfs, sysfs) Keywords: System V Release 3.1.1 Version 3 for AT&T 3B2 Message-ID: <55038@sun.uucp> Date: 1 Jun 88 19:15:48 GMT References: <479@uniq.UUCP> <681@labtam.OZ> Sender: news@sun.uucp Lines: 13 > If you stat(2) a remote file you get the high order bit of st_dev > turned on so you can tell that it is remote if you want to. Also the > major number tells which machine it resides on. And the minor > number tells which filesystem on the remote machine the file > resides on. Note that, as far as I know, none of this is documented anywhere; therefore, it should be considered a quirk of the implementation, *not* a documented part of the interface. It happens to work under S5R3, but it may break someday. Note also that "remote vs. local" is only one potentially-interesting file system attribute; "/proc" is, arguably, a local file system, but you would rarely want "find /" to go traipsing down it.