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-rw-r--r--perl-install/commands.pm381
1 files changed, 381 insertions, 0 deletions
diff --git a/perl-install/commands.pm b/perl-install/commands.pm
new file mode 100644
index 000000000..8448a9f24
--- /dev/null
+++ b/perl-install/commands.pm
@@ -0,0 +1,381 @@
+package commands;
+
+use diagnostics;
+use strict;
+use vars qw($printable_chars);
+
+use common qw(:common :file :system :constant);
+
+my $BUFFER_SIZE = 1024;
+
+1;
+
+
+sub getopts {
+ my $o = shift;
+ my @r = map { '' } (@_ = split //, $_[0]);
+ while (1) {
+ local $_ = $o->[0];
+ $_ && /^-/ or return @r;
+ for (my $i = 0; $i < @_; $i++) { /$_[$i]/ and $r[$i] = $_[$i]; }
+ shift @$o;
+ }
+ @r;
+}
+
+sub cat { @ARGV = @_; print while <> }
+sub which { ARG: foreach (@_) { foreach my $c (split /:/, $ENV{PATH}) { -x "$c/$_" and print("$c/$_\n"), next ARG; }}}
+sub dirname_ { print dirname(@_), "\n" }
+sub basename_ { print basename(@_), "\n" }
+sub rmdir_ { foreach (@_) { rmdir $_ or die "rmdir: can't remove $_\n" } }
+sub lsmod { print "Module Size Used by\n"; cat("/proc/modules"); }
+
+sub grep_ {
+ my ($h, $v) = getopts(\@_, qw(hv));
+ my $r = shift and !$h or die "usage: grep <regexp> [files...]\n";
+ @ARGV = @_; (/$r/ ? $v || print : $v && print) while <>
+}
+
+sub tr_ {
+ my ($s, $c, $d) = getopts(\@_, qw(s c d));
+ @_ >= 1 + (!$d || $s) or die "usage: tr [-c] [-s [-d]] <set1> <set2> [files...]\n or tr [-c] -d <set1> [files...]\n";
+ my $set1 = shift;
+ my $set2; !$d || $s and $set2 = shift;
+ @ARGV = @_;
+ eval "(tr/$set1/$set2/$s$d$c, print) while <>";
+}
+
+sub mount {
+ @_ or return cat("/proc/mounts");
+ my ($t) = getopts(\@_, qw(t));
+ my $fs = $t ? shift : $_[0] =~ /:/ ? "nfs" : "ext2";
+
+ @_ == 2 or die "usage: mount [-t <fs>] <device> <dir>\n",
+ " (if /dev/ is left off the device name, a temporary node will be created)\n";
+
+ require 'fs.pm';
+ fs::mount(@_, $fs, 0, 1);
+}
+
+sub umount {
+ @_ == 1 or die "umount expects a single argument\n";
+
+ require 'fs.pm';
+ fs::umount($_[0]);
+}
+
+sub mkdir_ {
+ my $rec; $_[0] eq '-p' and $rec = shift;
+
+ my $mkdir; $mkdir = sub {
+ my $root = dirname $_[0];
+ if (-e $root) {
+ -d $root or die "mkdir: error creating directory $_[0]: $root is a file and i won't delete it\n";
+ } else {
+ $rec or die "mkdir: $root does not exist (try option -p)\n";
+ &$mkdir($root);
+ }
+ mkdir $_[0], 0755 or die "mkdir: error creating directory $_: $!\n";
+ };
+ foreach (@_) { &$mkdir($_); }
+}
+
+
+sub mknod {
+ if (@_ == 1) {
+ require 'devices.pm';
+ eval { devices::make($_[0]) }; $@ and die "mknod: failed to create $_[0]\n";
+ } elsif (@_ == 4) {
+ require 'c.pm';
+ my $mode = $ {{"b" => c::S_IFBLK(), "c" => c::S_IFCHR()}}{$_[1]} or die "unknown node type $_[1]\n";
+ syscall_('mknod', my $a = $_[0], $mode | 0600, makedev($_[2], $_[3])) or die "mknod failed: $!\n";
+ } else { die "usage: mknod <path> [b|c] <major> <minor> or mknod <path>\n"; }
+}
+
+sub ln {
+ my ($force, $soft, $i);
+
+ while ($i = shift) {
+ if ($i eq '-f') { $force = 1; }
+ elsif ($i eq '-s') { $soft = 1; }
+ elsif ($i eq '-fs' || $i eq '-sf') { $force = $soft = 1; }
+ else { last }
+ }
+
+ my $source = $i or die "usage: ln [-s] [-f] <source> [<dest>]\n";
+ my $dest = shift || basename($source);
+
+ $force and unlink $dest;
+
+
+ ($soft ? symlink($source, $dest) : link($source, $dest)) or die "ln failed: $!\n";
+}
+
+sub rm {
+ my $rec; $_[0] eq '-r' and $rec = shift;
+
+ my $rm; $rm = sub {
+ foreach (@_) {
+ if (-d $_) {
+ $rec or die "$_ is a directory\n";
+ &$rm(glob_($_));
+ rmdir $_ or die "can't remove directory $_: $!\n";
+ } else { unlink $_ or die "rm of $_ failed: $!\n" }
+ }
+ };
+ &$rm(@_);
+}
+
+sub chmod_ {
+ @_ >= 2 or die "usage: chmod <mode> <files>\n";
+
+ my $mode = shift;
+ $mode =~ /^[0-7]+$/ or die "illegal mode $mode\n";
+
+ foreach (@_) { chmod oct($mode), $_ or die "chmod failed $_: $!\n" }
+}
+
+sub chown_ {
+ my $rec; $_[0] eq '-r' and $rec = shift;
+ local $_ = shift or die "usage: chown [-r] name[.group] <files>\n";
+
+ my ($name, $group) = (split('\.'), $_);
+
+ my ($uid, $gid) = (getpwnam($name) || $name, getgrnam($group) || $group);
+
+ my $chown; $chown = sub {
+ foreach (@_) {
+ chown $uid, $gid, $_ or die "chown of file $_ failed: $!\n";
+ -d $_ && $rec and &$chown(glob_($_));
+ }
+ };
+ &$chown(@_);
+}
+
+sub mkswap {
+ @_ == 1 or die "mkswap <device>\n";
+
+ require 'swap.pm';
+ swap::enable($_[0], 0);
+}
+
+sub swapon {
+ @_ == 1 or die "swapon <file>\n";
+
+ require 'swap.pm';
+ swap::swapon($_[0]);
+}
+sub swapoff {
+ @_ == 1 or die "swapoff <file>\n";
+ require 'swap.pm';
+ swap::swapoff($_[0]);
+}
+
+sub uncpio {
+ @_ and die "uncpio reads from stdin\n";
+
+# cpioInstallArchive(gzdopen(0, "r"), NULL, 0, NULL, NULL, &fail);
+}
+
+
+sub rights {
+ my $r = '-' x 9;
+ my @rights = (qw(x w r x w r x w r), ['t', 0], ['s', 3], ['s', 6]);
+ for (my $i = 0; $i < @rights; $i++) {
+ if (vec(pack("S", $_[0]), $i, 1)) {
+ my ($val, $place) = $i >= 9 ? @{$rights[$i]} : ($rights[$i], $i);
+ my $old = \substr($r, 8 - $place, 1);
+ $$old = ($$old eq '-' && $i >= 9) ? uc $val : $val;
+ }
+ }
+ my @types = split //, "_pc_d_b_-_l_s";
+ $types[$_[0] >> 12 & 0xf] . $r;
+}
+
+sub ls {
+ my ($l , $h) = getopts(\@_, qw(lh));
+ $h and die "usage: ls [-l] <files...>\n";
+
+ @_ or @_ = '.';
+ @_ == 1 && -d $_[0] and @_ = glob_($_[0]);
+ foreach (sort @_) {
+ if ($l) {
+ my @s = lstat or warn("can't stat file $_\n"), next;
+ formline(
+"@<<<<<<<<< @<<<<<<< @<<<<<<< @>>>>>>>> @>>>>>>>>>>>>>>> @*\n",
+ rights($s[2]), getpwuid $s[4] || $s[4], getgrgid $s[5] || $s[5],
+ $s[6] ? join ", ", unmakedev($s[6]) : $s[7],
+ scalar localtime $s[9], -l $_ ? "$_ -> " . readlink $_ : $_);
+ print $^A; $^A = '';
+ } else { print "$_\n"; }
+ }
+}
+
+sub cp {
+ my ($force) = getopts(\@_, qw(f));
+ @_ >= 2 or die "usage: cp [-f] <sources> <dest>\n(this cp does -Rl by default)\n";
+
+ my $cp; $cp = sub {
+ my $dest = pop @_;
+
+ @_ or return;
+ @_ == 1 || -d $dest or die "cp: copying multiple files, but last argument ($dest) is not a directory\n";
+
+ foreach my $src (@_) {
+ my $dest = $dest;
+ -d $dest and $dest .= "/" . basename($src);
+
+ if (-e $dest) {
+ $force ? unlink $dest : die "file $dest already exist\n";
+ }
+
+ if (-d $src) {
+ -d $dest or mkdir $dest, mode($src) or die "mkdir: can't create directory $dest: $!\n";
+ &$cp(glob_($src), $dest);
+ } elsif (-l $src) {
+ symlink((readlink($src) || die "readlink failed: $!"), $dest) or die "symlink: can't create symlink $dest: $!\n";
+ } else {
+ local (*F, *G);
+ open F, $src or die "can't open $src for reading: $!\n";
+ open G, "> $dest" or $force or die "can't create $dest : $!\n";
+ foreach (<F>) { print G $_ }
+ chmod mode($src), $dest;
+ }
+ }
+ };
+ &$cp(@_);
+}
+
+sub ps {
+ @_ and die "usage: ps\n";
+ my ($pid, $cmd);
+
+ local (*STDOUT_TOP, *STDOUT);
+ format STDOUT_TOP =
+ PID CMD
+.
+ format =
+@>>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+$pid, $cmd
+.
+
+ foreach $pid (sort {$a <=> $b} grep { /\d+/ } all('/proc')) {
+ (($cmd) = cat_("/proc/$pid/cmdline")) =~ s/\0/ /g;
+ $cmd ||= (split ' ', (cat_("/proc/$pid/stat"))[0])[1];
+ write STDOUT
+ }
+}
+
+
+sub dd {
+ my $u = "usage: dd [-h] [if=<file>] [of=<file>] [bs=<number>] [count=<number>]\n";
+ (getopts(\@_, qw(h)))[0] and die $u;
+ my %h = (if => \*STDIN, of => \*STDOUT, bs => 512, count => undef);
+ foreach (@_) {
+ /(.*?)=(.*)/ && exists $h{$1} or die $u;
+ $h{$1} = $2;
+ }
+ local (*IF, *OF); my ($tmp, $nb, $read);
+ ref $h{if} eq 'GLOB' ? *IF = $h{if} : sysopen(IF, $h{if}, 0 ) || die "error: can't open file $h{if}\n";
+ ref $h{of} eq 'GLOB' ? *OF = $h{of} : sysopen(OF, $h{of}, 0x41) || die "error: can't open file $h{of}\n";
+
+ $h{bs} =~ /(\d+)k$/ and $h{bs} = $1 * 1024;
+ $h{bs} =~ /(\d+)M$/ and $h{bs} = $1 * 1024 * 1024;
+ $h{bs} =~ /(\d+)G$/ and $h{bs} = $1 * 1024 * 1024 * 1024;
+
+ for ($nb = 0; !$h{count} || $nb < $h{count}; $nb++) {
+ $read = sysread(IF, $tmp, $h{bs}) or $h{count} ? die "error: can't read block $nb\n" : last;
+ syswrite(OF, $tmp) or die "error: can't write block $nb\n";
+ $read < $h{bs} and $read = 1, last;
+ }
+ print STDERR "$nb+$read records in\n";
+ print STDERR "$nb+$read records out\n";
+}
+
+sub head_tail {
+ my ($h, $n) = getopts(\@_, qw(hn));
+ $h || @_ > 1 + bool($n) and die "usage: $0 [-h] [-n lines] [<file>]\n";
+ $n = $n ? shift : 10;
+ local *F; @_ ? open(F, $_[0]) || die "error: can't open file $_[0]\n" : (*F = \*STDIN);
+
+ if ($0 eq 'head') {
+ foreach (<F>) { $n-- or return; print }
+ } else {
+ @_ = (); foreach (<F>) { push @_, $_; @_ > $n and shift; }
+ print @_;
+ }
+}
+sub head { $0 = 'head'; &head_tail }
+sub tail { $0 = 'tail'; &head_tail }
+
+sub strings {
+ my ($h, $o, $n) = getopts(\@_, qw(hon));
+ $h and die "usage: strings [-o] [-n min-length] [<files>]\n";
+ $n = $n ? shift : 4;
+ $/ = "\0"; @ARGV = @_; my $l = 0; while (<>) {
+ while (/[$printable_chars]\{$n,}/og) {
+ printf "%07d ", ($l + length $') if $o;
+ print "$&\n" ;
+ }
+ $l += length;
+ } continue { $l = 0 if eof }
+}
+
+sub hexdump {
+ my $i = 0; $/ = \16; @ARGV = @_; while (<>) {
+ printf "%08lX ", $i; $i += 16;
+ print join(" ", map({ sprintf "%02X", $_ } unpack("C*", $_)),
+ ($_ =~ s/[^$printable_chars]/./og, $_)[1]), "\n";
+ }
+}
+
+sub more {
+ @ARGV = @_;
+ require 'devices.pm';
+ my $tty = devices::make('tty');
+ local *IN; open IN, "<$tty" or die "can't open $tty\n";
+ my $n = 0; while (<>) {
+ ++$n == 25 and $n = <IN>, $n = 0;
+ print
+ }
+}
+
+sub pack_ {
+ my $t;
+ foreach (@_) {
+ if (-d $_) {
+ pack_(glob_($_));
+ } else {
+ print -s $_, "\n";
+ print $_, "\n";
+
+ local *F;
+ open F, $_ or die "can't read file $_: $!\n";
+ while (read F, $t, $BUFFER_SIZE) { print $t; }
+ }
+ }
+}
+
+sub unpack_ {
+ my $t;
+ @_ == 1 or die "give me one and only one file to unpack\n";
+ local *F;
+ open F, $_[0] or die "can't open file $_: $!\n";
+ while (1) {
+ my ($size) = chop_(scalar <F>);
+ defined $size or last;
+ $size =~ /^\d+$/ or die "bad format (can't find file size)\n";
+ my ($filename) = chop_(scalar <F>) or die "expecting filename\n";
+
+ print "$filename\n";
+ my $dir = dirname($filename);
+ -d $dir or mkdir_('-p', $dir);
+
+ local *G;
+ open G, "> $filename" or die "can't write file $filename: $!\n";
+ while ($size) {
+ $size -= read(F, $t, min($size, $BUFFER_SIZE)) || die "data for file $filename is missing\n";
+ print G $t or die "error writing to file $filename: $!\n";
+ }
+ }
+}
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