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32 lines
537 B
Bash
Executable File
32 lines
537 B
Bash
Executable File
#!/bin/sh
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# Usage: block_loop [bind file|unbind node]
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#
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# The file argument to the bind command is the file we are to bind to a
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# loop device. We print the path to the loop device node to stdout.
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#
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# The node argument to unbind is the name of the device node we are to
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# unbind.
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case $1 in
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bind)
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for dev in /dev/loop*; do
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if losetup $dev $2; then
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echo $dev
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exit 0
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fi
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done
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exit 1
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;;
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unbind)
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losetup -d $2
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exit 0
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;;
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*)
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echo 'Unknown command: ' $1
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echo 'Valid commands are: bind, unbind'
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exit 1
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esac
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