628 lines
14 KiB
Perl
628 lines
14 KiB
Perl
#!/usr/local/bin/perl
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use Config;
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use File::Basename qw(&basename &dirname);
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use Cwd;
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# List explicitly here the variables you want Configure to
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# generate. Metaconfig only looks for shell variables, so you
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# have to mention them as if they were shell variables, not
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# %Config entries. Thus you write
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# $startperl
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# to ensure Configure will look for $Config{startperl}.
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# This forces PL files to create target in same directory as PL file.
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# This is so that make depend always knows where to find PL derivatives.
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$origdir = cwd;
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chdir dirname($0);
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$file = basename($0, '.PL');
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$file .= '.com' if $^O eq 'VMS';
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open OUT,">$file" or die "Can't create $file: $!";
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print "Extracting $file (with variable substitutions)\n";
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# In this section, perl variables will be expanded during extraction.
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# You can use $Config{...} to use Configure variables.
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print OUT <<"!GROK!THIS!";
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$Config{startperl}
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eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
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if \$running_under_some_shell;
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\$startperl = "$Config{startperl}";
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\$perlpath = "$Config{perlpath}";
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!GROK!THIS!
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# In the following, perl variables are not expanded during extraction.
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print OUT <<'!NO!SUBS!';
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#
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# Modified September 26, 1993 to provide proper handling of years after 1999
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# Tom Link <tml+@pitt.edu>
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# University of Pittsburgh
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#
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# Modified April 7, 1998 with nasty hacks to implement the troublesome -follow
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# Billy Constantine <wdconsta@cs.adelaide.edu.au> <billy@smug.adelaide.edu.au>
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# University of Adelaide, Adelaide, South Australia
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#
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while ($ARGV[0] =~ /^[^-!(]/) {
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push(@roots, shift);
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}
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@roots = ('.') unless @roots;
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for (@roots) { $_ = "e($_); }
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$roots = join(',', @roots);
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$indent = 1;
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$stat = 'lstat';
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$decl = '';
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while (@ARGV) {
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$_ = shift;
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s/^-// || /^[()!]/ || die "Unrecognized switch: $_\n";
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if ($_ eq '(') {
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$out .= &tab . "(\n";
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$indent++;
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next;
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}
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elsif ($_ eq ')') {
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$indent--;
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$out .= &tab . ")";
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}
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elsif ($_ eq 'follow') {
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$stat = 'stat';
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$decl = '%already_seen = ();';
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$out .= &tab . '(not $already_seen{"$dev,$ino"}) &&';
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$out .= "\n" . &tab . '(($already_seen{"$dev,$ino"} = !(-d _)) || 1)';
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}
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elsif ($_ eq '!') {
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$out .= &tab . "!";
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next;
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}
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elsif ($_ eq 'name') {
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$out .= &tab;
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$pat = &fileglob_to_re(shift);
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$out .= '/' . $pat . "/";
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}
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elsif ($_ eq 'perm') {
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$onum = shift;
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die "Malformed -perm argument: $onum\n" unless $onum =~ /^-?[0-7]+$/;
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if ($onum =~ s/^-//) {
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$onum = '0' . sprintf("%o", oct($onum) & 017777); # s/b 07777 ?
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$out .= &tab . "((\$mode & $onum) == $onum)";
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}
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else {
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$onum = '0' . $onum unless $onum =~ /^0/;
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$out .= &tab . "((\$mode & 0777) == $onum)";
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}
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}
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elsif ($_ eq 'type') {
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($filetest = shift) =~ tr/s/S/;
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$out .= &tab . "-$filetest _";
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}
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elsif ($_ eq 'print') {
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$out .= &tab . 'print("$name\n")';
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}
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elsif ($_ eq 'print0') {
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$out .= &tab . 'print("$name\0")';
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}
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elsif ($_ eq 'fstype') {
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$out .= &tab;
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$type = shift;
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if ($type eq 'nfs')
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{ $out .= '($dev < 0)'; }
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else
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{ $out .= '($dev >= 0)'; }
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}
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elsif ($_ eq 'user') {
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$uname = shift;
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$out .= &tab . "(\$uid == \$uid{'$uname'})";
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$inituser++;
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}
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elsif ($_ eq 'group') {
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$gname = shift;
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$out .= &tab . "(\$gid == \$gid{'$gname'})";
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$initgroup++;
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}
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elsif ($_ eq 'nouser') {
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$out .= &tab . '!defined $uid{$uid}';
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$inituser++;
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}
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elsif ($_ eq 'nogroup') {
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$out .= &tab . '!defined $gid{$gid}';
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$initgroup++;
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}
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elsif ($_ eq 'links') {
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$out .= &tab . '($nlink ' . &n(shift);
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}
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elsif ($_ eq 'inum') {
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$out .= &tab . '($ino ' . &n(shift);
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}
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elsif ($_ eq 'size') {
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$out .= &tab . '(int(((-s _) + 511) / 512) ' . &n(shift);
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}
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elsif ($_ eq 'atime') {
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$out .= &tab . '(int(-A _) ' . &n(shift);
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}
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elsif ($_ eq 'mtime') {
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$out .= &tab . '(int(-M _) ' . &n(shift);
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}
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elsif ($_ eq 'ctime') {
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$out .= &tab . '(int(-C _) ' . &n(shift);
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}
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elsif ($_ eq 'exec') {
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for (@cmd = (); @ARGV && $ARGV[0] ne ';'; push(@cmd,shift)) { }
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shift;
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$_ = "@cmd";
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if (m#^(/bin/)?rm -f {}$#) {
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if (!@ARGV) {
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$out .= &tab . 'unlink($_)';
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}
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else {
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$out .= &tab . '(unlink($_) || 1)';
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}
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}
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elsif (m#^(/bin/)?rm {}$#) {
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$out .= &tab . '(unlink($_) || warn "$name: $!\n")';
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}
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else {
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for (@cmd) { s/'/\\'/g; }
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$" = "','";
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$out .= &tab . "&exec(0, '@cmd')";
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$" = ' ';
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$initexec++;
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}
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}
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elsif ($_ eq 'ok') {
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for (@cmd = (); @ARGV && $ARGV[0] ne ';'; push(@cmd,shift)) { }
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shift;
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for (@cmd) { s/'/\\'/g; }
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$" = "','";
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$out .= &tab . "&exec(1, '@cmd')";
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$" = ' ';
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$initexec++;
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}
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elsif ($_ eq 'prune') {
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$out .= &tab . '($prune = 1)';
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}
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elsif ($_ eq 'xdev') {
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$out .= &tab . '!($prune |= ($dev != $topdev))';
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}
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elsif ($_ eq 'newer') {
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$out .= &tab;
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$file = shift;
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$newername = 'AGE_OF' . $file;
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$newername =~ s/[^\w]/_/g;
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$newername = "\$$newername";
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$out .= "(-M _ < $newername)";
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$initnewer .= "$newername = -M " . "e($file) . ";\n";
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}
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elsif ($_ eq 'eval') {
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$prog = "e(shift);
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$out .= &tab . "eval $prog";
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}
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elsif ($_ eq 'depth') {
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$depth++;
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next;
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}
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elsif ($_ eq 'ls') {
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$out .= &tab . "&ls";
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$initls++;
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}
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elsif ($_ eq 'tar') {
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$out .= &tab;
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die "-tar must have a filename argument\n" unless @ARGV;
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$file = shift;
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$fh = 'FH' . $file;
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$fh =~ s/[^\w]/_/g;
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$out .= "&tar($fh)";
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$file = '>' . $file;
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$initfile .= "open($fh, " . "e($file) .
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qq{) || die "Can't open $fh: \$!\\n";\n};
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$inittar++;
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$flushall = "\n&tflushall;\n";
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}
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elsif (/^n?cpio$/) {
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$depth++;
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$out .= &tab;
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die "-$_ must have a filename argument\n" unless @ARGV;
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$file = shift;
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$fh = 'FH' . $file;
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$fh =~ s/[^\w]/_/g;
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$out .= "&cpio('" . substr($_,0,1) . "', $fh)";
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$file = '>' . $file;
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$initfile .= "open($fh, " . "e($file) .
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qq{) || die "Can't open $fh: \$!\\n";\n};
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$initcpio++;
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$flushall = "\n&flushall;\n";
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}
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else {
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die "Unrecognized switch: -$_\n";
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}
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if (@ARGV) {
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if ($ARGV[0] eq '-o') {
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{ local($statdone) = 1; $out .= "\n" . &tab . "||\n"; }
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$statdone = 0 if $indent == 1 && $delayedstat;
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$saw_or++;
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shift;
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}
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else {
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$out .= " &&" unless $ARGV[0] eq ')';
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$out .= "\n";
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shift if $ARGV[0] eq '-a';
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}
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}
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}
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print <<"END";
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$startperl
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eval 'exec $perlpath -S \$0 \${1+"\$@"}'
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if \$running_under_some_shell;
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END
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if ($initls) {
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print <<'END';
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@rwx = ('---','--x','-w-','-wx','r--','r-x','rw-','rwx');
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@moname = (Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec);
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END
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}
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if ($inituser || $initls) {
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print 'while (($name, $pw, $uid) = getpwent) {', "\n";
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print ' $uid{$name} = $uid{$uid} = $uid;', "\n" if $inituser;
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print ' $user{$uid} = $name unless $user{$uid};', "\n" if $initls;
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print "}\n\n";
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}
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if ($initgroup || $initls) {
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print 'while (($name, $pw, $gid) = getgrent) {', "\n";
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print ' $gid{$name} = $gid{$gid} = $gid;', "\n" if $initgroup;
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print ' $group{$gid} = $name unless $group{$gid};', "\n" if $initls;
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print "}\n\n";
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}
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print $initnewer, "\n" if $initnewer;
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print $initfile, "\n" if $initfile;
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$find = $depth ? "finddepth" : "find";
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print <<"END";
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require "$find.pl";
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# Traverse desired filesystems
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$decl
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&$find($roots);
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$flushall
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exit;
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sub wanted {
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$out;
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}
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END
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if ($initexec) {
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print <<'END';
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sub exec {
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local($ok, @cmd) = @_;
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foreach $word (@cmd) {
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$word =~ s#{}#$name#g;
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}
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if ($ok) {
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local($old) = select(STDOUT);
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$| = 1;
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print "@cmd";
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select($old);
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return 0 unless <STDIN> =~ /^y/;
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}
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chdir $cwd; # sigh
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system @cmd;
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chdir $dir;
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return !$?;
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}
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END
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}
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if ($initls) {
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print <<"INTERP", <<'END';
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sub ls {
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(\$dev,\$ino,\$mode,\$nlink,\$uid,\$gid,\$rdev,\$sizemm,
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\$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat\(_\);
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INTERP
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$pname = $name;
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if (defined $blocks) {
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$blocks = int(($blocks + 1) / 2);
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}
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else {
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$blocks = int(($size + 1023) / 1024);
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}
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if (-f _) { $perms = '-'; }
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elsif (-d _) { $perms = 'd'; }
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elsif (-c _) { $perms = 'c'; $sizemm = &sizemm; }
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elsif (-b _) { $perms = 'b'; $sizemm = &sizemm; }
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elsif (-p _) { $perms = 'p'; }
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elsif (-S _) { $perms = 's'; }
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else { $perms = 'l'; $pname .= ' -> ' . readlink($_); }
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$tmpmode = $mode;
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$tmp = $rwx[$tmpmode & 7];
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$tmpmode >>= 3;
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$tmp = $rwx[$tmpmode & 7] . $tmp;
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$tmpmode >>= 3;
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$tmp = $rwx[$tmpmode & 7] . $tmp;
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substr($tmp,2,1) =~ tr/-x/Ss/ if -u _;
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substr($tmp,5,1) =~ tr/-x/Ss/ if -g _;
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substr($tmp,8,1) =~ tr/-x/Tt/ if -k _;
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$perms .= $tmp;
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$user = $user{$uid} || $uid;
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$group = $group{$gid} || $gid;
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($sec,$min,$hour,$mday,$mon,$year) = localtime($mtime);
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$moname = $moname[$mon];
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if (-M _ > 365.25 / 2) {
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$timeyear = $year + 1900;
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}
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else {
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$timeyear = sprintf("%02d:%02d", $hour, $min);
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}
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printf "%5lu %4ld %-10s %2d %-8s %-8s %8s %s %2d %5s %s\n",
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$ino,
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$blocks,
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$perms,
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$nlink,
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$user,
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$group,
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$sizemm,
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$moname,
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$mday,
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$timeyear,
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$pname;
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1;
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}
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sub sizemm {
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sprintf("%3d, %3d", ($rdev >> 8) & 255, $rdev & 255);
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}
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END
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}
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if ($initcpio) {
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print <<'START', <<"INTERP", <<'END';
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sub cpio {
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local($nc,$fh) = @_;
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local($text);
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if ($name eq 'TRAILER!!!') {
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$text = '';
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$size = 0;
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}
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else {
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START
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(\$dev,\$ino,\$mode,\$nlink,\$uid,\$gid,\$rdev,\$size,
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\$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat\(_\);
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INTERP
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if (-f _) {
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open(IN, "./$_\0") || do {
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warn "Couldn't open $name: $!\n";
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return;
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};
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}
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else {
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$text = readlink($_);
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$size = 0 unless defined $text;
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}
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}
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($nm = $name) =~ s#^\./##;
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$nc{$fh} = $nc;
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if ($nc eq 'n') {
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$cpout{$fh} .=
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sprintf("%06o%06o%06o%06o%06o%06o%06o%06o%011lo%06o%011lo%s\0",
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070707,
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$dev & 0777777,
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$ino & 0777777,
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$mode & 0777777,
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$uid & 0777777,
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$gid & 0777777,
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$nlink & 0777777,
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$rdev & 0177777,
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$mtime,
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length($nm)+1,
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$size,
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$nm);
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}
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else {
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$cpout{$fh} .= "\0" if length($cpout{$fh}) & 1;
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$cpout{$fh} .= pack("SSSSSSSSLSLa*",
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070707, $dev, $ino, $mode, $uid, $gid, $nlink, $rdev, $mtime,
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length($nm)+1, $size, $nm . (length($nm) & 1 ? "\0" : "\0\0"));
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}
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if ($text ne '') {
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$cpout{$fh} .= $text;
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}
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elsif ($size) {
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&flush($fh) while ($l = length($cpout{$fh})) >= 5120;
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while (sysread(IN, $cpout{$fh}, 5120 - $l, $l)) {
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&flush($fh);
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$l = length($cpout{$fh});
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}
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}
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close IN;
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}
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sub flush {
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local($fh) = @_;
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while (length($cpout{$fh}) >= 5120) {
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syswrite($fh,$cpout{$fh},5120);
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++$blocks{$fh};
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substr($cpout{$fh}, 0, 5120) = '';
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}
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}
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sub flushall {
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$name = 'TRAILER!!!';
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foreach $fh (keys %cpout) {
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&cpio($nc{$fh},$fh);
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$cpout{$fh} .= "0" x (5120 - length($cpout{$fh}));
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&flush($fh);
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print $blocks{$fh} * 10, " blocks\n";
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}
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}
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END
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}
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if ($inittar) {
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print <<'START', <<"INTERP", <<'END';
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sub tar {
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local($fh) = @_;
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local($linkname,$header,$l,$slop);
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local($linkflag) = "\0";
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START
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(\$dev,\$ino,\$mode,\$nlink,\$uid,\$gid,\$rdev,\$size,
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\$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat\(_\);
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INTERP
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$nm = $name;
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if ($nlink > 1) {
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if ($linkname = $linkseen{$fh,$dev,$ino}) {
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$linkflag = 1;
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}
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else {
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$linkseen{$fh,$dev,$ino} = $nm;
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}
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}
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if (-f _) {
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open(IN, "./$_\0") || do {
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warn "Couldn't open $name: $!\n";
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return;
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};
|
|
$size = 0 if $linkflag ne "\0";
|
|
}
|
|
else {
|
|
$linkname = readlink($_);
|
|
$linkflag = 2 if defined $linkname;
|
|
$nm .= '/' if -d _;
|
|
$size = 0;
|
|
}
|
|
|
|
$header = pack("a100a8a8a8a12a12a8a1a100",
|
|
$nm,
|
|
sprintf("%6o ", $mode & 0777),
|
|
sprintf("%6o ", $uid & 0777777),
|
|
sprintf("%6o ", $gid & 0777777),
|
|
sprintf("%11o ", $size),
|
|
sprintf("%11o ", $mtime),
|
|
" ",
|
|
$linkflag,
|
|
$linkname);
|
|
$l = length($header) % 512;
|
|
substr($header, 148, 6) = sprintf("%6o", unpack("%16C*", $header));
|
|
substr($header, 154, 1) = "\0"; # blech
|
|
$tarout{$fh} .= $header;
|
|
$tarout{$fh} .= "\0" x (512 - $l) if $l;
|
|
if ($size) {
|
|
&tflush($fh) while ($l = length($tarout{$fh})) >= 10240;
|
|
while (sysread(IN, $tarout{$fh}, 10240 - $l, $l)) {
|
|
$slop = length($tarout{$fh}) % 512;
|
|
$tarout{$fh} .= "\0" x (512 - $slop) if $slop;
|
|
&tflush($fh);
|
|
$l = length($tarout{$fh});
|
|
}
|
|
}
|
|
close IN;
|
|
}
|
|
|
|
sub tflush {
|
|
local($fh) = @_;
|
|
|
|
while (length($tarout{$fh}) >= 10240) {
|
|
syswrite($fh,$tarout{$fh},10240);
|
|
++$blocks{$fh};
|
|
substr($tarout{$fh}, 0, 10240) = '';
|
|
}
|
|
}
|
|
|
|
sub tflushall {
|
|
local($len);
|
|
|
|
foreach $fh (keys %tarout) {
|
|
$len = 10240 - length($tarout{$fh});
|
|
$len += 10240 if $len < 1024;
|
|
$tarout{$fh} .= "\0" x $len;
|
|
&tflush($fh);
|
|
}
|
|
}
|
|
|
|
END
|
|
}
|
|
|
|
exit;
|
|
|
|
############################################################################
|
|
|
|
sub tab {
|
|
local($tabstring);
|
|
|
|
$tabstring = "\t" x ($indent / 2) . ' ' x ($indent % 2 * 4);
|
|
if (!$statdone) {
|
|
if ($_ =~ /^(name|print|prune|exec|ok|\(|\))/) {
|
|
$delayedstat++;
|
|
}
|
|
else {
|
|
if ($saw_or) {
|
|
$tabstring .= <<"ENDOFSTAT" . $tabstring;
|
|
(\$nlink || ((\$dev,\$ino,\$mode,\$nlink,\$uid,\$gid) = $stat\(\$_\))) &&
|
|
ENDOFSTAT
|
|
}
|
|
else {
|
|
$tabstring .= <<"ENDOFSTAT" . $tabstring;
|
|
((\$dev,\$ino,\$mode,\$nlink,\$uid,\$gid) = $stat\(\$_\)) &&
|
|
ENDOFSTAT
|
|
}
|
|
$statdone = 1;
|
|
}
|
|
}
|
|
$tabstring =~ s/^\s+/ / if $out =~ /!$/;
|
|
$tabstring;
|
|
}
|
|
|
|
sub fileglob_to_re {
|
|
local($tmp) = @_;
|
|
|
|
$tmp =~ s#([./^\$()])#\\$1#g;
|
|
$tmp =~ s/([?*])/.$1/g;
|
|
"^$tmp\$";
|
|
}
|
|
|
|
sub n {
|
|
local($n) = @_;
|
|
|
|
$n =~ s/^-/< / || $n =~ s/^\+/> / || $n =~ s/^/== /;
|
|
$n =~ s/ 0*(\d)/ $1/;
|
|
$n . ')';
|
|
}
|
|
|
|
sub quote {
|
|
local($string) = @_;
|
|
$string =~ s/'/\\'/;
|
|
"'$string'";
|
|
}
|
|
!NO!SUBS!
|
|
|
|
close OUT or die "Can't close $file: $!";
|
|
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
|
|
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
|
|
chdir $origdir;
|