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Re: filepath-on-device to BSD-devpath-of-that-device

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Re: filepath-on-device to BSD-devpath-of-that-device

Subject: Re: filepath-on-device to BSD-devpath-of-that-device
From: Mo McRoberts <email@hidden>
Date: Wed, 25 Apr 2007 20:41:48 +0100


On 25-Apr-2007, at 20:38, Chase wrote:

How do I get a BSD device path string (eg: "/dev/rdisk3") that represents the path to the device that holds a file for which I have a path string (eg: "/Volumes/SOME_DATA_CD/A_SUB_FOLDER/THE_FILE.txt")?

I can get the dev_t number of the device using stat(), but I'm not sure what to do with that number to get an actual path to the raw device.
... or maybe the stat() step is unnecessary altogether.
So (to sum up)... How do I get a string like "/dev/rdisk3" starting with only the string "/Volumes/SOME_DATA_CD/A_SUB_FOLDER/THE_FILE.txt" ?


I'm no expert, but I would have thought getfsstat() and friends.

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  >filepath-on-device to BSD-devpath-of-that-device (From: "Chase" <email@hidden>)




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	>filepath-on-device to BSD-devpath-of-that-device (From: "Chase" <email@hidden>)