56 lines
1.3 KiB
Bash
Executable File
56 lines
1.3 KiB
Bash
Executable File
#!/bin/sh -f
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
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#
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OPTS=""
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USAGE="Usage: xfs_info [-V] [-t mtab] [mountpoint|device|file]"
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# Try to find a loop device associated with a file. We only want to return
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# one loopdev (multiple loop devices can attach to a single file) so we grab
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# the last line and return it if it's actually a block device.
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try_find_loop_dev_for_file() {
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local x="$(losetup -O NAME -j "$1" 2> /dev/null | tail -n 1)"
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test -b "$x" && echo "$x"
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}
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while getopts "t:V" c
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do
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case $c in
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t) OPTS="-t $OPTARG" ;;
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V) xfs_spaceman -p xfs_info -V
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status=$?
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exit $status
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;;
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*) echo $USAGE 1>&2
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exit 2
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;;
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esac
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done
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set -- extra "$@"
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shift $OPTIND
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case $# in
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1)
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arg="$1"
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# See if we can map the arg to a loop device
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loopdev="$(try_find_loop_dev_for_file "${arg}")"
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test -n "${loopdev}" && arg="${loopdev}"
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# If we find a mountpoint for the device, do a live query;
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# otherwise try reading the fs with xfs_db.
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if mountpt="$(findmnt -t xfs -f -n -o TARGET "${arg}" 2> /dev/null)"; then
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xfs_spaceman -p xfs_info -c "info" $OPTS "${mountpt}"
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status=$?
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else
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xfs_db -p xfs_info -c "info" $OPTS "${arg}"
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status=$?
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fi
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;;
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*) echo $USAGE 1>&2
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exit 2
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;;
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esac
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exit $status
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