mirror of
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18 lines
509 B
Bash
18 lines
509 B
Bash
#! /bin/bash -x
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# extracts .config info from a [b]zImage file
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# uses: binoffset (new), dd, zcat, strings, grep
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# $arg1 is [b]zImage filename
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HDR=`binoffset $1 0x1f 0x8b 0x08 0x0`
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PID=$$
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TMPFILE="$1.vmlin.$PID"
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# dd if=$1 bs=1 skip=$HDR | zcat - | strings /dev/stdin \
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# | grep "[A-Za-z_0-9]=[ynm]$" | sed "s/^/CONFIG_/" > $1.oldconfig.$PID
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# exit
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dd if=$1 bs=1 skip=$HDR | zcat - > $TMPFILE
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strings $TMPFILE | grep "^[\#[:blank:]]*CONFIG_[A-Za-z_0-9]*" > $1.oldconfig.$PID
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wc $1.oldconfig.$PID
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rm $TMPFILE
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