1 files changed, 39 insertions, 0 deletions

diff --git a/meta/recipes-devtools/rpm/rpm/rpm2cpio b/meta/recipes-devtools/rpm/rpm/rpm2cpio
new file mode 100755
index 0000000000..6bcef6a4ce
--- /dev/null
+++ b/meta/recipes-devtools/rpm/rpm/rpm2cpio
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+# Prevent gawk >= 4.0.x from getting funny ideas wrt UTF in printf()
+LANG=C
+
+pkg=$1
+if [ "$pkg" = "" -o ! -e "$pkg" ]; then
+    echo "no package supplied" 1>&2
+   exit 1
+fi
+
+leadsize=96
+o=`expr $leadsize + 8`
+set `od -j $o -N 8 -t u1 $pkg`
+il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5`
+dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9`
+# echo "sig il: $il dl: $dl"
+
+sigsize=`expr 8 + 16 \* $il + $dl`
+o=`expr $o + $sigsize + \( 8 - \( $sigsize \% 8 \) \) \% 8 + 8`
+set `od -j $o -N 8 -t u1 $pkg`
+il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5`
+dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9`
+# echo "hdr il: $il dl: $dl"
+
+hdrsize=`expr 8 + 16 \* $il + $dl`
+o=`expr $o + $hdrsize`
+comp=`dd if=$pkg ibs=$o skip=1 count=1 2>/dev/null | dd bs=3 count=1 2> /dev/null`
+
+gz="`echo . | awk '{ printf("%c%c", 0x1f, 0x8b); }'`"
+lzma="`echo . | awk '{ printf("%cLZ", 0xff); }'`"
+xz="`echo . | awk '{ printf("%c7z", 0xfd); }'`"
+case "$comp" in
+    BZh)      dd if="$pkg" ibs=$o skip=1 2>/dev/null | bunzip2 ;;
+    "$gz"*)   dd if="$pkg" ibs=$o skip=1 2>/dev/null | gunzip ;;
+    "$xz"*)   dd if="$pkg" ibs=$o skip=1 2>/dev/null | xzcat ;;
+    "$lzma"*) dd if="$pkg" ibs=$o skip=1 2>/dev/null | unlzma ;;
+    *)        echo "Unrecognized rpm file: $pkg"; exit 1 ;;
+esac