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bug#48960: stat v8.30 - device number in decimal shown as 16bit number i

From: Wolfgang Rohm
Subject: bug#48960: stat v8.30 - device number in decimal shown as 16bit number instead of to converted 8bit
Date: Fri, 11 Jun 2021 09:37:54 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0


Stat prints the device number, major and minor, in hex and decimal. They are both 8bit numbers clamped together. While the hex number is perfectly fine, the decimal doesn't respect how this number has come to existence. There is no meaning in the decimal value, if the the hex value is taken as one 16bit number and then converted.

For example "fd00h" is converted to "64768d". There is no major device with 647 and no minor device with 768. Its just completely wrong.

So instead of converting fd00h to 64768d, both 8bit hex numbers must be converted each, meaning alone. The right number would be therefore 253000, major 253 and minor 0. While the hex number needs two digits each (the first 0 can be ommited), the decimal needs three digits each (the first and second 0 can be omitted).

|stat (GNU coreutils) 8.30
Copyright © 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Geschrieben von Michael Meskes.

Mit freundlichen Grüßen
Wolfgang Rohm

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