Subversion Repositories Scribus

Rev

Rev 3728 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
598 cbradney 1
#!/usr/bin/perl -w
2
 
3
use DB_File;
4
use Fcntl ':flock';
5
 
6
if (!defined($ARGV[0])) {
7
    print "usage: requires .class dump as parameter!\n";
8
    exit;
9
}
10
 
11
sub bailout
12
{
13
    untie %bcheckdb if(defined(%bcheckdb));
14
 
15
    if(defined(MYLOCK)) {
16
        flock MYLOCK, LOCK_UN;
17
        close(MYLOCK);
18
    }
19
 
20
    print @_;
21
    exit 5;
22
}
23
 
24
sub ask_user
25
{
26
    my ($dbkey, $dbchunk) = @_;
27
 
28
    if (defined($ENV{"BCHECK_UPDATE"})) {
29
        $bcheckdb{$dbkey} = $dbchunk;
30
        return;
31
    }
32
 
33
    &bailout("BC problem detected") if (! -t STDIN);
34
 
35
    print "(I)gnore / (Q)uit / (U)pdate: ";
36
 
37
    my $key;
38
    while(defined(read STDIN, $key, 1)) {
39
        $key = lc($key);
40
 
41
        print "got: >$key<\n";
42
 
43
        return if ($key eq 'i');
44
 
45
        &bailout("BC problem. aborted") if ($key eq 'q');
46
 
47
        if ($key eq 'u') {
48
            $bcheckdb{$dbkey} = $dbchunk;
49
            return;
50
        }
51
        print "\n(I)gnore / (Q)uit / (U)pdate: ";
52
    }
53
}
54
 
55
sub diff_chunk($$)
56
{
57
    my ($oldl, $newl) = @_;
58
    my @old = split /^/m, $oldl;
59
    my @new = split /^/m, $newl;
60
    my $haschanges = 0;
61
    my $max = $#old > $#new ? $#old : $#new;
62
 
63
    die "whoops. key different" if ($old[0] ne $new[0]);
64
 
65
    if ($#old != $#new) {
66
        warn ("Structural difference.\n");
67
        print @old;
68
        print "-----------------------------------------------\n";
69
        print @new;
70
        $haschanges = 1;
71
        return $haschanges;
72
    }
73
 
74
    print $old[0];
75
 
76
    my ($class) = ($old[0] =~ /^(?:Class |Vtable for )(\S+)/);
77
 
78
    my $c = 1;
79
    while ($c < $max) {
80
        my ($o, $n) = ($old[$c], $new[$c]);
81
        chomp $o;
82
        chomp $n;
83
        $c++;
84
        next if ($o eq $n);
85
 
86
        if(defined($class) and $n =~ /^(\d+\s+)\w+(::\S+\s*.*)$/) {
87
            next if ($n eq "$1$class$2");
88
        }
89
 
90
        $haschanges = 1;
91
 
92
        print "-$o\n+$n\n\n";
93
    }
94
 
95
    return $haschanges;
96
}
97
 
98
local $dblock = $ENV{"HOME"} . "/bcheck.lock";
99
my $dbfile = $ENV{"HOME"} . "/bcheck.db";
100
my $cdump  = $ARGV[0];
101
 
102
die "file $cdump is not readable: $!" if (! -f $cdump);
103
 
104
# make sure the advisory lock exists
105
open(MYLOCK, ">$dblock");
106
print MYLOCK "";
107
 
108
flock MYLOCK, LOCK_EX;
109
 
110
tie %bcheckdb, 'DB_File', $dbfile;
111
 
112
my $chunk = "";
113
 
114
open (IN, "<$cdump") or die "cannot open $cdump: $!";
115
while (<IN>) {
116
 
117
    chop;
118
 
119
    s/0x[0-9a-fA-F]+/0x......../g;
120
    s/base size=/size=/g;
3875 mrdocs 121
    s/\(\)\s*$//g;
598 cbradney 122
    s/base align=/align=/g;
123
 
124
    $chunk .= $_ . "\n";
125
 
126
    if(/^\s*$/) {
127
        my @lines = split /^/m, $chunk;
128
        my $key = $lines[0];
129
        chomp $key;
130
 
131
        if($key !~ /<anonymous struct>/ &&
132
           $key !~ /<anonymous union>/) {
133
            if(defined($bcheckdb{$key})) {
134
                my $dbversion = $bcheckdb{$key};
135
 
136
                if($dbversion ne $chunk) {
137
                     &ask_user($key, $chunk) if(&diff_chunk($dbversion, $chunk));
138
                }
139
            }
140
            else {
141
                $bcheckdb{$key} = $chunk;
142
                print "NEW: $key\n";
143
            }
144
        }
145
 
146
        $chunk = "";
147
        next;
148
    }
149
 
150
}
151
close(IN);
152
 
153
untie %bcheckdb;
154
flock MYLOCK, LOCK_UN;
155
close(MYLOCK);
156
 
157
exit 0;