Contents of /trunk/file-roller/rpm2cpio-file-roller
Parent Directory | Revision Log
Revision 144 -
(show annotations)
(download)
Tue May 8 20:06:05 2007 UTC (17 years, 4 months ago) by niro
File size: 2556 byte(s)
Tue May 8 20:06:05 2007 UTC (17 years, 4 months ago) by niro
File size: 2556 byte(s)
-import
1 | #!/usr/bin/perl |
2 | |
3 | # Copyright (C) 1997,1998,1999, Roger Espel Llima |
4 | # |
5 | # Permission is hereby granted, free of charge, to any person obtaining a copy |
6 | # of this software and any associated documentation files (the "Software"), to |
7 | # deal in the Software without restriction, including without limitation the |
8 | # rights to use, copy, modify, merge, publish, distribute, sublicense, |
9 | # and/or sell copies of the Software, and to permit persons to whom the |
10 | # Software is furnished to do so, subject to the following conditions: |
11 | # |
12 | # The above copyright notice and this permission notice shall be included in |
13 | # all copies or substantial portions of the Software. |
14 | # |
15 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
18 | # SOFTWARE'S COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
20 | # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
21 | # THE SOFTWARE |
22 | |
23 | # (whew, that's done!) |
24 | |
25 | # why does the world need another rpm2cpio? because the existing one |
26 | # won't build unless you have half a ton of things that aren't really |
27 | # required for it, since it uses the same library used to extract RPM's. |
28 | # in particular, it won't build on the HPsUX box i'm on. |
29 | |
30 | |
31 | # add a path if desired |
32 | $gzip = "gzip"; |
33 | |
34 | sub printhelp { |
35 | print "rpm2cpio, perl version by orabidoo <odar\@pobox.com>\n"; |
36 | print "use: rpm2cpio [file.rpm]\n"; |
37 | print "dumps the contents to stdout as a GNU cpio archive\n"; |
38 | exit 0; |
39 | } |
40 | |
41 | if ($#ARGV == -1) { |
42 | printhelp if -t STDIN; |
43 | $f = "STDIN"; |
44 | } elsif ($#ARGV == 0) { |
45 | open(F, "< $ARGV[0]") or die "Can't read file $ARGV[0]\n"; |
46 | $f = 'F'; |
47 | } else { |
48 | printhelp; |
49 | } |
50 | |
51 | printhelp if -t STDOUT; |
52 | |
53 | # gobble the file up |
54 | undef $/; |
55 | $|=1; |
56 | $rpm = <$f>; |
57 | close ($f); |
58 | |
59 | ($magic, $major, $minor, $crap) = unpack("NCC C90", $rpm); |
60 | |
61 | die "Not an RPM\n" if $magic != 0xedabeedb; |
62 | die "Not a version 3 RPM\n" if $major != 3; |
63 | |
64 | $rpm = substr($rpm, 96); |
65 | |
66 | while ($rpm ne '') { |
67 | $rpm =~ s/^\c@*//s; |
68 | ($magic, $crap, $sections, $bytes) = unpack("N4", $rpm); |
69 | $smagic = unpack("n", $rpm); |
70 | last if $smagic eq 0x1f8b; |
71 | die "Error: header not recognized\n" if $magic != 0x8eade801; |
72 | $rpm = substr($rpm, 16*(1+$sections) + $bytes); |
73 | } |
74 | |
75 | die "bogus RPM\n" if $rpm eq ''; |
76 | |
77 | open(ZCAT, "|gzip -cd") || die "can't pipe to gzip\n"; |
78 | print STDERR "CPIO archive found!\n"; |
79 | |
80 | print ZCAT $rpm; |
81 | close ZCAT; |
82 |