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https://github.com/tcsenpai/UWINE.git
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43 lines
936 B
Bash
Executable File
43 lines
936 B
Bash
Executable File
#! /bin/sh
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# Usage: tarcat volume1 volume2 ...
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# concatenates a GNU tar multi-volume archive into a single tar archive.
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# Author: Bruno Haible <bruno@clisp.org>, Sergey Poznyakoff <gray@gnu.org.ua>
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# dump_type FILE [N]
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# Print type character from block N (default 0) of tar archive FILE
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dump_type() {
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dd if="$1" skip=${2:-0} bs=512 count=1 2>/dev/null |
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tr '\0' ' ' |
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cut -c157
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}
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case `dump_type "$1"` in
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[gx]) PAX=1;;
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esac
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cat "$1"
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shift
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for f
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do
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SKIP=0
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T=`dump_type "$f"`
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if [ -n "$PAX" ]; then
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if [ "$T" = "g" ]; then
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# Global extended header.... 2 blocks
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# Extended header........... 2 blocks
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# Ustar header.............. 1 block
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# FIXME: This calculation is will fail for very long file names.
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SKIP=5
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fi
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else
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if [ "$T" = "V" ]; then
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T=`dump_type "$f" 1`
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fi
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if [ "$T" = "M" ]; then
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SKIP=$(($SKIP + 1))
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fi
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fi
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dd skip=$SKIP if="$f"
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done
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