diff options
Diffstat (limited to 'meta/recipes-devtools/rpm/rpm/rpm2cpio')
-rwxr-xr-x | meta/recipes-devtools/rpm/rpm/rpm2cpio | 51 |
1 files changed, 51 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..00c4ec549e --- /dev/null +++ b/meta/recipes-devtools/rpm/rpm/rpm2cpio | |||
@@ -0,0 +1,51 @@ | |||
1 | #!/bin/sh | ||
2 | |||
3 | pkg=$1 | ||
4 | if [ "$pkg" = "" -o ! -e "$pkg" ]; then | ||
5 | echo "no package supplied" 1>&2 | ||
6 | exit 1 | ||
7 | fi | ||
8 | |||
9 | leadsize=96 | ||
10 | o=`expr $leadsize + 8` | ||
11 | set `od -j $o -N 8 -t u1 $pkg` | ||
12 | il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5` | ||
13 | dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9` | ||
14 | # echo "sig il: $il dl: $dl" | ||
15 | |||
16 | sigsize=`expr 8 + 16 \* $il + $dl` | ||
17 | o=`expr $o + $sigsize + \( 8 - \( $sigsize \% 8 \) \) \% 8 + 8` | ||
18 | set `od -j $o -N 8 -t u1 $pkg` | ||
19 | il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5` | ||
20 | dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9` | ||
21 | # echo "hdr il: $il dl: $dl" | ||
22 | |||
23 | hdrsize=`expr 8 + 16 \* $il + $dl` | ||
24 | o=`expr $o + $hdrsize` | ||
25 | EXTRACTOR="dd if=$pkg ibs=$o skip=1" | ||
26 | |||
27 | COMPRESSION=`($EXTRACTOR |file -) 2>/dev/null` | ||
28 | if echo $COMPRESSION |grep -q gzip; then | ||
29 | DECOMPRESSOR=gunzip | ||
30 | elif echo $COMPRESSION |grep -q bzip2; then | ||
31 | DECOMPRESSOR=bunzip2 | ||
32 | elif echo $COMPRESSION |grep -q xz; then | ||
33 | DECOMPRESSOR=unxz | ||
34 | elif echo $COMPRESSION |grep -q cpio; then | ||
35 | DECOMPRESSOR=cat | ||
36 | else | ||
37 | # Most versions of file don't support LZMA, therefore we assume | ||
38 | # anything not detected is LZMA | ||
39 | DECOMPRESSOR=`which unlzma 2>/dev/null` | ||
40 | case "$DECOMPRESSOR" in | ||
41 | /* ) ;; | ||
42 | * ) DECOMPRESSOR=`which lzmash 2>/dev/null` | ||
43 | case "$DECOMPRESSOR" in | ||
44 | /* ) DECOMPRESSOR="lzmash -d -c" ;; | ||
45 | * ) DECOMPRESSOR=cat ;; | ||
46 | esac | ||
47 | ;; | ||
48 | esac | ||
49 | fi | ||
50 | |||
51 | $EXTRACTOR 2>/dev/null | $DECOMPRESSOR | ||