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- #!/usr/bin/perl
-
- eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
- if $running_under_some_shell;
-
- $bin = "/usr/bin";
-
-
- while ($ARGV[0] =~ /^[^-!(]/) {
- push(@roots, shift);
- }
- @roots = ('.') unless @roots;
- for (@roots) { $_ = "e($_); }
- $roots = join(',', @roots);
-
- $indent = 1;
-
- while (@ARGV) {
- $_ = shift;
- s/^-// || /^[()!]/ || die "Unrecognized switch: $_\n";
- if ($_ eq '(') {
- $out .= &tab . "(\n";
- $indent++;
- next;
- }
- elsif ($_ eq ')') {
- $indent--;
- $out .= &tab . ")";
- }
- elsif ($_ eq '!') {
- $out .= &tab . "!";
- next;
- }
- elsif ($_ eq 'name') {
- $out .= &tab;
- $pat = &fileglob_to_re(shift);
- $out .= '/' . $pat . "/";
- }
- elsif ($_ eq 'perm') {
- $onum = shift;
- die "Malformed -perm argument: $onum\n" unless $onum =~ /^-?[0-7]+$/;
- if ($onum =~ s/^-//) {
- $onum = '0' . sprintf("%o", oct($onum) & 017777); # s/b 07777 ?
- $out .= &tab . "((\$mode & $onum) == $onum)";
- }
- else {
- $onum = '0' . $onum unless $onum =~ /^0/;
- $out .= &tab . "((\$mode & 0777) == $onum)";
- }
- }
- elsif ($_ eq 'type') {
- ($filetest = shift) =~ tr/s/S/;
- $out .= &tab . "-$filetest _";
- }
- elsif ($_ eq 'print') {
- $out .= &tab . 'print("$name\n")';
- }
- elsif ($_ eq 'print0') {
- $out .= &tab . 'print("$name\0")';
- }
- elsif ($_ eq 'fstype') {
- $out .= &tab;
- $type = shift;
- if ($type eq 'nfs')
- { $out .= '$dev < 0'; }
- else
- { $out .= '$dev >= 0'; }
- }
- elsif ($_ eq 'user') {
- $uname = shift;
- $out .= &tab . "\$uid == \$uid{'$uname'}";
- $inituser++;
- }
- elsif ($_ eq 'group') {
- $gname = shift;
- $out .= &tab . "\$gid == \$gid{'$gname'}";
- $initgroup++;
- }
- elsif ($_ eq 'nouser') {
- $out .= &tab . '!defined $uid{$uid}';
- $inituser++;
- }
- elsif ($_ eq 'nogroup') {
- $out .= &tab . '!defined $gid{$gid}';
- $initgroup++;
- }
- elsif ($_ eq 'links') {
- $out .= &tab . '$nlink ' . &n(shift);
- }
- elsif ($_ eq 'inum') {
- $out .= &tab . '$ino ' . &n(shift);
- }
- elsif ($_ eq 'size') {
- $out .= &tab . 'int((-s _ + 511) / 512) ' . &n(shift);
- }
- elsif ($_ eq 'atime') {
- $out .= &tab . 'int(-A _) ' . &n(shift);
- }
- elsif ($_ eq 'mtime') {
- $out .= &tab . 'int(-M _) ' . &n(shift);
- }
- elsif ($_ eq 'ctime') {
- $out .= &tab . 'int(-C _) ' . &n(shift);
- }
- elsif ($_ eq 'exec') {
- for (@cmd = (); @ARGV && $ARGV[0] ne ';'; push(@cmd,shift)) { }
- shift;
- $_ = "@cmd";
- if (m#^(/bin/)?rm -f {}$#) {
- if (!@ARGV) {
- $out .= &tab . 'unlink($_)';
- }
- else {
- $out .= &tab . '(unlink($_) || 1)';
- }
- }
- elsif (m#^(/bin/)?rm {}$#) {
- $out .= &tab . '(unlink($_) || warn "$name: $!\n")';
- }
- else {
- for (@cmd) { s/'/\\'/g; }
- $" = "','";
- $out .= &tab . "&exec(0, '@cmd')";
- $" = ' ';
- $initexec++;
- }
- }
- elsif ($_ eq 'ok') {
- for (@cmd = (); @ARGV && $ARGV[0] ne ';'; push(@cmd,shift)) { }
- shift;
- for (@cmd) { s/'/\\'/g; }
- $" = "','";
- $out .= &tab . "&exec(1, '@cmd')";
- $" = ' ';
- $initexec++;
- }
- elsif ($_ eq 'prune') {
- $out .= &tab . '($prune = 1)';
- }
- elsif ($_ eq 'xdev') {
- $out .= &tab . '(($prune |= ($dev != $topdev)),1)';
- }
- elsif ($_ eq 'newer') {
- $out .= &tab;
- $file = shift;
- $newername = 'AGE_OF' . $file;
- $newername =~ s/[^\w]/_/g;
- $newername = '$' . $newername;
- $out .= "-M _ < $newername";
- $initnewer .= "$newername = -M " . "e($file) . ";\n";
- }
- elsif ($_ eq 'eval') {
- $prog = "e(shift);
- $out .= &tab . "eval $prog";
- }
- elsif ($_ eq 'depth') {
- $depth++;
- next;
- }
- elsif ($_ eq 'ls') {
- $out .= &tab . "&ls";
- $initls++;
- }
- elsif ($_ eq 'tar') {
- $out .= &tab;
- die "-tar must have a filename argument\n" unless @ARGV;
- $file = shift;
- $fh = 'FH' . $file;
- $fh =~ s/[^\w]/_/g;
- $out .= "&tar($fh)";
- $file = '>' . $file;
- $initfile .= "open($fh, " . "e($file) .
- qq{) || die "Can't open $fh: \$!\\n";\n};
- $inittar++;
- $flushall = "\n&tflushall;\n";
- }
- elsif (/^n?cpio$/) {
- $depth++;
- $out .= &tab;
- die "-$_ must have a filename argument\n" unless @ARGV;
- $file = shift;
- $fh = 'FH' . $file;
- $fh =~ s/[^\w]/_/g;
- $out .= "&cpio('" . substr($_,0,1) . "', $fh)";
- $file = '>' . $file;
- $initfile .= "open($fh, " . "e($file) .
- qq{) || die "Can't open $fh: \$!\\n";\n};
- $initcpio++;
- $flushall = "\n&flushall;\n";
- }
- else {
- die "Unrecognized switch: -$_\n";
- }
- if (@ARGV) {
- if ($ARGV[0] eq '-o') {
- { local($statdone) = 1; $out .= "\n" . &tab . "||\n"; }
- $statdone = 0 if $indent == 1 && $delayedstat;
- $saw_or++;
- shift;
- }
- else {
- $out .= " &&" unless $ARGV[0] eq ')';
- $out .= "\n";
- shift if $ARGV[0] eq '-a';
- }
- }
- }
-
- print <<"END";
- #!$bin/perl
-
- eval 'exec $bin/perl -S \$0 \${1+"\$@"}'
- if \$running_under_some_shell;
-
- END
-
- if ($initls) {
- print <<'END';
- @rwx = ('---','--x','-w-','-wx','r--','r-x','rw-','rwx');
- @moname = (Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec);
-
- END
- }
-
- if ($inituser || $initls) {
- print 'while (($name, $pw, $uid) = getpwent) {', "\n";
- print ' $uid{$name} = $uid{$uid} = $uid;', "\n" if $inituser;
- print ' $user{$uid} = $name unless $user{$uid};', "\n" if $initls;
- print "}\n\n";
- }
-
- if ($initgroup || $initls) {
- print 'while (($name, $pw, $gid) = getgrent) {', "\n";
- print ' $gid{$name} = $gid{$gid} = $gid;', "\n" if $initgroup;
- print ' $group{$gid} = $name unless $group{$gid};', "\n" if $initls;
- print "}\n\n";
- }
-
- print $initnewer, "\n" if $initnewer;
-
- print $initfile, "\n" if $initfile;
-
- $find = $depth ? "finddepth" : "find";
- print <<"END";
- require "$find.pl";
-
- # Traverse desired filesystems
-
- &$find($roots);
- $flushall
- exit;
-
- sub wanted {
- $out;
- }
-
- END
-
- if ($initexec) {
- print <<'END';
- sub exec {
- local($ok, @cmd) = @_;
- foreach $word (@cmd) {
- $word =~ s#{}#$name#g;
- }
- if ($ok) {
- local($old) = select(STDOUT);
- $| = 1;
- print "@cmd";
- select($old);
- return 0 unless <STDIN> =~ /^y/;
- }
- chdir $cwd; # sigh
- system @cmd;
- chdir $dir;
- return !$?;
- }
-
- END
- }
-
- if ($initls) {
- print <<'END';
- sub ls {
- ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$sizemm,
- $atime,$mtime,$ctime,$blksize,$blocks) = lstat(_);
-
- $pname = $name;
-
- if (defined $blocks) {
- $blocks = int(($blocks + 1) / 2);
- }
- else {
- $blocks = int(($size + 1023) / 1024);
- }
-
- if (-f _) { $perms = '-'; }
- elsif (-d _) { $perms = 'd'; }
- elsif (-c _) { $perms = 'c'; $sizemm = &sizemm; }
- elsif (-b _) { $perms = 'b'; $sizemm = &sizemm; }
- elsif (-p _) { $perms = 'p'; }
- elsif (-S _) { $perms = 's'; }
- else { $perms = 'l'; $pname .= ' -> ' . readlink($_); }
-
- $tmpmode = $mode;
- $tmp = $rwx[$tmpmode & 7];
- $tmpmode >>= 3;
- $tmp = $rwx[$tmpmode & 7] . $tmp;
- $tmpmode >>= 3;
- $tmp = $rwx[$tmpmode & 7] . $tmp;
- substr($tmp,2,1) =~ tr/-x/Ss/ if -u _;
- substr($tmp,5,1) =~ tr/-x/Ss/ if -g _;
- substr($tmp,8,1) =~ tr/-x/Tt/ if -k _;
- $perms .= $tmp;
-
- $user = $user{$uid} || $uid;
- $group = $group{$gid} || $gid;
-
- ($sec,$min,$hour,$mday,$mon,$year) = localtime($mtime);
- $moname = $moname[$mon];
- if (-M _ > 365.25 / 2) {
- $timeyear = '19' . $year;
- }
- else {
- $timeyear = sprintf("%02d:%02d", $hour, $min);
- }
-
- printf "%5lu %4ld %-10s %2d %-8s %-8s %8s %s %2d %5s %s\n",
- $ino,
- $blocks,
- $perms,
- $nlink,
- $user,
- $group,
- $sizemm,
- $moname,
- $mday,
- $timeyear,
- $pname;
- 1;
- }
-
- sub sizemm {
- sprintf("%3d, %3d", ($rdev >> 8) & 255, $rdev & 255);
- }
-
- END
- }
-
- if ($initcpio) {
- print <<'END';
- sub cpio {
- local($nc,$fh) = @_;
- local($text);
-
- if ($name eq 'TRAILER!!!') {
- $text = '';
- $size = 0;
- }
- else {
- ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
- $atime,$mtime,$ctime,$blksize,$blocks) = lstat(_);
- if (-f _) {
- open(IN, "./$_\0") || do {
- warn "Couldn't open $name: $!\n";
- return;
- };
- }
- else {
- $text = readlink($_);
- $size = 0 unless defined $text;
- }
- }
-
- ($nm = $name) =~ s#^\./##;
- $nc{$fh} = $nc;
- if ($nc eq 'n') {
- $cpout{$fh} .=
- sprintf("%06o%06o%06o%06o%06o%06o%06o%06o%011lo%06o%011lo%s\0",
- 070707,
- $dev & 0777777,
- $ino & 0777777,
- $mode & 0777777,
- $uid & 0777777,
- $gid & 0777777,
- $nlink & 0777777,
- $rdev & 0177777,
- $mtime,
- length($nm)+1,
- $size,
- $nm);
- }
- else {
- $cpout{$fh} .= "\0" if length($cpout{$fh}) & 1;
- $cpout{$fh} .= pack("SSSSSSSSLSLa*",
- 070707, $dev, $ino, $mode, $uid, $gid, $nlink, $rdev, $mtime,
- length($nm)+1, $size, $nm . (length($nm) & 1 ? "\0" : "\0\0"));
- }
- if ($text ne '') {
- $cpout{$fh} .= $text;
- }
- elsif ($size) {
- &flush($fh) while ($l = length($cpout{$fh})) >= 5120;
- while (sysread(IN, $cpout{$fh}, 5120 - $l, $l)) {
- &flush($fh);
- $l = length($cpout{$fh});
- }
- }
- close IN;
- }
-
- sub flush {
- local($fh) = @_;
-
- while (length($cpout{$fh}) >= 5120) {
- syswrite($fh,$cpout{$fh},5120);
- ++$blocks{$fh};
- substr($cpout{$fh}, 0, 5120) = '';
- }
- }
-
- sub flushall {
- $name = 'TRAILER!!!';
- foreach $fh (keys %cpout) {
- &cpio($nc{$fh},$fh);
- $cpout{$fh} .= "0" x (5120 - length($cpout{$fh}));
- &flush($fh);
- print $blocks{$fh} * 10, " blocks\n";
- }
- }
-
- END
- }
-
- if ($inittar) {
- print <<'END';
- sub tar {
- local($fh) = @_;
- local($linkname,$header,$l,$slop);
- local($linkflag) = "\0";
-
- ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
- $atime,$mtime,$ctime,$blksize,$blocks) = lstat(_);
- $nm = $name;
- if ($nlink > 1) {
- if ($linkname = $linkseen{$fh,$dev,$ino}) {
- $linkflag = 1;
- }
- else {
- $linkseen{$fh,$dev,$ino} = $nm;
- }
- }
- if (-f _) {
- open(IN, "./$_\0") || do {
- warn "Couldn't open $name: $!\n";
- return;
- };
- $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) = lstat($_))) &&
- ENDOFSTAT
- }
- else {
- $tabstring .= <<'ENDOFSTAT' . $tabstring;
- (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) &&
- 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'";
- }
-