Created
April 10, 2013 05:12
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uudecode in bash
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if ! hash uudecode; then | |
uudecode() { | |
bs=0 | |
while read -rs t ; do | |
if [ $bs -eq 1 ] ; then | |
if [ "a$t" = "aend" ] ; then | |
bs=2 | |
else | |
x=1 | |
i=($(printf "%d " "'${t:0:1}" "'${t:1:1}" "'${t:2:1}" "'${t:3:1}" "'${t:4:1}" "'${t:5:1}" "'${t:6:1}" "'${t:7:1}" "'${t:8:1}" "'${t:9:1}" "'${t:10:1}" "'${t:11:1}" "'${t:12:1}" "'${t:13:1}" "'${t:14:1}" "'${t:15:1}" "'${t:16:1}" "'${t:17:1}" "'${t:18:1}" "'${t:19:1}" "'${t:20:1}" "'${t:21:1}" "'${t:22:1}" "'${t:23:1}" "'${t:24:1}" "'${t:25:1}" "'${t:26:1}" "'${t:27:1}" "'${t:28:1}" "'${t:29:1}" "'${t:30:1}" "'${t:31:1}" "'${t:32:1}" "'${t:33:1}" "'${t:34:1}" "'${t:35:1}" "'${t:36:1}" "'${t:37:1}" "'${t:38:1}" "'${t:39:1}" "'${t:40:1}" "'${t:41:1}" "'${t:42:1}" "'${t:43:1}" "'${t:44:1}" "'${t:45:1}" "'${t:46:1}" "'${t:47:1}" "'${t:48:1}" "'${t:49:1}" "'${t:50:1}" "'${t:51:1}" "'${t:52:1}" "'${t:53:1}" "'${t:54:1}" "'${t:55:1}" "'${t:56:1}" "'${t:57:1}" "'${t:58:1}" "'${t:59:1}" "'${t:60:1}")) | |
l=$[${i[0]} -32 & 63 ] | |
while [ $l -gt 0 ] ; do | |
i0=$[${i[$[x++]]} -32 & 63] | |
i1=$[${i[$[x++]]} -32 & 63] | |
i2=$[${i[$[x++]]} -32 & 63] | |
i3=$[${i[$[x++]]} -32 & 63] | |
if [ $l -gt 2 ] ; then | |
echo -ne "\0$[$i0 >> 4]$[$i0 >> 1 & 7]$[$i0 << 2 & 4 | $i1 >> 4]\0$[$i1 >> 2 & 3]$[$i1 << 1 & 6 | $i2 >> 5]$[$i2 >> 2 & 7]\0$[$i2 & 3]$[$i3 >> 3 & 7]$[$i3 & 7]" >>"$name" | |
echo -n . | |
elif [ $l -eq 2 ] ; then | |
echo -ne "\0$[$i0 >> 4]$[$i0 >> 1 & 7]$[$i0 << 2 & 4 | $i1 >> 4]\0$[$i1 >> 2 & 3]$[$i1 << 1 & 6 | $i2 >> 5]$[$i2 >> 2 & 7]" >>"$name" | |
else | |
echo -ne "\0$[$i0 >> 4]$[$i0 >> 1 & 7]$[$i0 << 2 & 4 | $i1 >> 4]" >>"$name" | |
fi | |
l=$[l-3] | |
done | |
fi | |
elif [ "${t:0:5}" = "begin" ]; then | |
bs=1 | |
mode="${t:6:3}" | |
name="${t:10}" | |
rm "$name" | |
fi | |
done | |
chmod $mode "$name" | |
} | |
fi |
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