extract-ikconfig

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    1 #! /bin/bash -x
    2 # extracts .config info from a [b]zImage file
    3 # uses: binoffset (new), dd, zcat, strings, grep
    4 # $arg1 is [b]zImage filename
    5 
    6 HDR=`binoffset $1 0x1f 0x8b 0x08 0x0`
    7 PID=$$
    8 TMPFILE="$1.vmlin.$PID"
    9 
   10 # dd if=$1 bs=1 skip=$HDR | zcat - | strings /dev/stdin \
   11 # | grep "[A-Za-z_0-9]=[ynm]$" | sed "s/^/CONFIG_/" > $1.oldconfig.$PID
   12 # exit
   13 
   14 dd if=$1 bs=1 skip=$HDR | zcat - > $TMPFILE
   15 strings $TMPFILE | grep "^[\#[:blank:]]*CONFIG_[A-Za-z_0-9]*" > $1.oldconfig.$PID
   16 wc $1.oldconfig.$PID
   17 rm $TMPFILE

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FreeBSD/Linux Kernel Cross Reference sys/scripts/extract-ikconfig

FreeBSD/Linux Kernel Cross Reference
sys/scripts/extract-ikconfig