/usr/sbin/fcopy is in fai-client 3.4.8ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 | #! /usr/bin/perl
# $Id$
#*********************************************************************
#
# fcopy -- copy files using FAI classes and preserve directory structure
#
# This script is part of FAI (Fully Automatic Installation)
# Copyright (C) 2000-2010 Thomas Lange, lange@informatik.uni-koeln.de
# Universitaet zu Koeln
# Copyright (C) 2001-2005 Henning Glawe, glaweh@physik.fu-berlin.de
# Freie Univeritaet Berlin
#
#*********************************************************************
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# A copy of the GNU General Public License is available as
# '/usr/share/common-licences/GPL' in the Debian GNU/Linux distribution
# or on the World Wide Web at http://www.gnu.org/copyleft/gpl.html. You
# can also obtain it by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#*********************************************************************
use strict;
use File::Copy;
use File::Compare;
use File::Find;
use File::Path;
use File::Basename;
use File::Spec;
use File::Temp qw/tempfile/;
use Getopt::Std;
use vars qw/*name/;
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Global variables
my $debug;
my $error = 0;
my $verbose;
my $target;
my $source;
my $logfile;
my @classes;
my $dryrun;
my @opt_modes;
my @rlist;
my %changed;
my %lastclass;
my $modeset;
my $nobackup;
my $opt_update;
my $backupdir;
my @ignoredirs = qw'CVS .svn .arch-ids {arch}';
# getopts:
our ($opt_s, $opt_t, $opt_r, $opt_m, $opt_M, $opt_v, $opt_d, $opt_D, $opt_i);
our ($opt_B, $opt_c, $opt_C, $opt_h, $opt_F, $opt_l, $opt_L, $opt_P, $opt_b);
our ($opt_I, $opt_U, $opt_n);
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub copy_one {
# copy file $prefix/$source/$class to $target/$source
my ($prefix,$source,$target) = @_;
my ($class,$sourcefile,$destfile);
# 'normalize' source filenames: very important for updating !
$source =~ s/^(\.\/|\/)*//;
my $ps = "$prefix/$source";
$ps =~ s#//#/#;
my $tpath = "$target/" . dirname $source;
my $preserve = 0;
my $logcomment = "";
my ($tmpfh,$tmpfile);
warn "copy_one: source: $source: ps: $ps tpath: $tpath\n" if $debug;
# $prefix/$source must be a directory
if (-f $ps) { ewarn("$ps is a file, but must be a directory containing templates.");return };
unless (-d $ps) { ewarn("Nonexisting directory $ps. No files copied.");return }
# use the last class for which a file exists
foreach (@classes) { $class = $_,last if -f "$ps/$_"; }
$destfile = "$target/$source";
my $backupfile = $backupdir ? "$backupdir/$source" : "$destfile.pre_fcopy";
my $bpath = dirname $backupfile;
unless (defined $class) {
ewarn("no matching file for any class for $source defined.");
# do not copy
if ($opt_d and -f $destfile) {
print LOGFILE "$source\tNONE\t# removed (no matching class)\n" if $logfile;
if ($nobackup) {
_unlink($destfile) || ewarn("Could not remove file $destfile");
} else {
_mkpath($bpath,$debug,0755) unless -d $bpath;
_move($destfile,$backupfile) if -d $bpath;;
}
}
return;
}
warn "using class: $class\n" if $debug;
$tmpfile = $sourcefile = "$ps/$class";
# do nothing if source and destination files are equal
if ($opt_update and not -x "$ps/preinst") {
# compare logically
if ($lastclass{$source}) {
# $source has already been copied last time
if ($lastclass{$source} ne $class) {
$logcomment = "\t# changed class" if $logfile;
} else {
if ($changed{"$source/$class"} or
$changed{"$source/postinst"} or
$changed{"$source/file-modes"}) {
$logcomment = "\t# changed file" if $logfile;
} else {
$logcomment = "\t# preserved (logical)" if $logfile;
$preserve = 1;
}
}
} else {
$logcomment = "\t# new (logical)" if $logfile;
}
} else {
# compare literally
if ( -x "$ps/preinst" ) {
warn "preinst script found, switching to literal change detection" if
($opt_P and $debug);
($tmpfh,$tmpfile)=tempfile("fcopy.XXXXXX",DIR=>File::Spec->tmpdir());
warn "preinst script found, copying $sourcefile to $tmpfile" if $debug;
ewarn("copying $sourcefile for preinst processing failed !") unless
_copy($sourcefile,$tmpfh);
if (runscript("preinst",$ps,$tmpfile,$class)) {
ewarn("preinst for $sourcefile failed; not proceeding");
_unlink($tmpfile);
return 0;
}
}
if ( compare($tmpfile,$destfile)) {
$logcomment="\t# new (literal)";
} else {
$logcomment="\t# preserved (literal)" if $logfile;
$preserve = 1;
}
}
#if a package is being purged, our information about its config files is
#wrong, so first check if they exist. if not, don't preserve, but copy
if ($preserve && ! -e $destfile) {
$logcomment="\t# magically disappeared (maybe purged)";
$preserve=0;
}
print LOGFILE "$source\t$class$logcomment\n" if $logfile;
if ($preserve) {
warn "preserving $source \n";
_unlink($tmpfile) unless ($tmpfile eq $sourcefile);
set_mode($ps,$destfile,$class); # set mode even no file was copied
return;
}
# if destination is a symlink and -l is given, complain about it
if ($opt_l && -l $destfile) {
ewarn("Destination $destfile is a symlink");
_unlink($tmpfile) unless ($tmpfile eq $sourcefile);
return;
}
# create subdirectories if they do not exist
_mkpath($tpath,$debug,0755) unless -d $tpath;
# save existing file, add suffix .pre_fcopy
# what should I do if $destfile is a symlink?
$nobackup or (-f $destfile and
(-d $bpath or _mkpath($bpath,$debug,0755)) and _move($destfile,$backupfile));
if (_copy($tmpfile,$destfile)) {
print "fcopy: copied $sourcefile to $destfile\n" ;
set_mode($ps,$destfile,$class);
runscript("postinst",$ps,$destfile,$class);
} else {
ewarn("copy $sourcefile to $destfile failed. $!") ;
}
_unlink($tmpfile) unless ($tmpfile eq $sourcefile);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub _mkpath {
return 1 if $dryrun; # do not execute if -n or FCOPY_DRYRUN was given
mkpath(@_);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub _unlink {
return 1 if $dryrun; # do not execute if -n or FCOPY_DRYRUN was given
unlink(@_);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub _move {
return 1 if $dryrun; # do not execute if -n or FCOPY_DRYRUN was given
move(@_);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub _copy {
return 1 if $dryrun; # do not execute if -n or FCOPY_DRYRUN was given
copy(@_);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub runscript {
# returns 0 on success, 1 if the script failed
my ($scriptname,$sourcefile,$destfile,$class) = @_;
return 1 unless -x "$sourcefile/$scriptname";
warn "executing $sourcefile/$scriptname $class $destfile\n" if $debug;
return 0 if $dryrun; # do not execute if -n or FCOPY_DRYRUN was given
system "$sourcefile/$scriptname $class $destfile";
my $rc = $?>>8;
if ($rc) {
warn "ERROR: $scriptname returned code $rc\n";
$error=1;
return 1;
}
return 0;
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub name2num {
# convert names to numeric uid, gid
my ($user, $group) = @_;
my ($uid, $gid);
if( !defined( $ENV{ROOTCMD} ) || $ENV{ROOTCMD} =~ /^\s*$/ )
{
$uid = ($user =~ /^\d+$/) ? $user : getpwnam $user;
$gid = ($group =~ /^\d+$/) ? $group : getgrnam $group;
}
else
{
$uid = ($user =~ /^\d+$/) ? $user : `$ENV{ROOTCMD} perl -e '\$uid = getpwnam "$user"; print \$uid'`;
$gid = ($group =~ /^\d+$/) ? $group : `$ENV{ROOTCMD} perl -e '\$gid = getgrnam "$group"; print \$gid'`;
}
warn "name2num $user = $uid ; $group = $gid\n" if $debug;
return ($uid,$gid);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub set_mode {
# set target file's owner, group, mode and time
# use owner,group,mode from -m or from the file file-modes or
# use the values from the source file
my ($sourcefile,$destfile,$class) = @_;
my ($uid,$gid,$owner,$group,$mode);
# get mtime,uid,gid,mode from source file
my ($stime,@defmodes) = (stat("$sourcefile/$class"))[9,4,5,2];
if ($modeset) { # use -m values
($owner,$group,$mode) = @opt_modes;
} elsif (-f "$sourcefile/file-modes"){
($owner,$group,$mode) = read_file_mode("$sourcefile/file-modes",$class);
} else { # use values from source file
($owner,$group,$mode) = @defmodes;
}
($uid,$gid) = name2num($owner,$group);
warn "chown/chmod u:$uid g:$gid m:$mode $destfile\n" if $debug;
return if $dryrun; # do not execute if -n or FCOPY_DRYRUN was given
chown ($uid,$gid, $destfile) || ewarn("chown $owner $group $destfile failed. $!");
chmod ($mode, $destfile) || ewarn("chmod $mode $destfile failed. $!");
utime ($stime,$stime, $destfile) || ewarn("utime for $destfile failed. $!");
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub check_mopt {
# save and check -m options
$modeset = 1;
my $n = @opt_modes = split(/,/,$opt_m);
($n != 3) &&
die "fcopy: wrong number of options for -m. Exact 3 comma separated items needed.\n";
unless ($opt_modes[2] =~/^[0-7]+$/) {
die "fcopy: file mode should be an octal number. Value is: $opt_modes[2]\n";
}
$opt_modes[2] = oct($opt_modes[2]);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub read_file_mode {
my ($modefile,$class) = @_;
my ($owner,$group,$mode,$fclass,@defaults);
warn "reading $modefile\n" if $verbose;
open (MODEFILE,"<$modefile") || die "fcopy: can't open $modefile\n";
while (<MODEFILE>) {
# skip empty lines
next if /^\s*$/;
# skip comment lines
next if /^#/;
($owner,$group,$mode,$fclass) = split;
$mode = oct($mode);
# class found
return ($owner,$group,$mode) if ($fclass eq $class);
# when no class is specified use data for all classes
$fclass or @defaults = ($owner,$group,$mode);
}
close MODEFILE;
return @defaults if @defaults;
ewarn("no modes found for $class in $modefile");
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub read_classes {
# read class names from a file
my $file = shift;
my @classes;
open(CLASS,$file) || die "fcopy: can't open class file $file. $!\n";
while (<CLASS>) {
next if /^#/;
push @classes, split;
}
close CLASS;
return @classes;
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub ewarn {
# print warnings and set error to 1
$error = 1;
warn "fcopy: @_\n";
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub read_status {
my $n = my @status_files=split(/,/,$opt_update);
($n != 2) && die "fcopy: need both log and changes file\n";
open(LASTLOG,$status_files[0]) || die "Can't open status file $status_files[0]\n";
while (<LASTLOG>) {
s/\#.*//g;
chomp;
my ($source,$class) = split(/\s/,$_,2);
$class=~s/\s*//g;
$lastclass{$source} = $class;
}
close(LASTLOG);
$_=$source; /([^\/]+)$/;
my $source_base = $1;
open(CHANGES,$status_files[1]) || die "Can't open status file $status_files[1]\n";
while (<CHANGES>) {
s/\#.*//g;
chomp;
m#$source_base/(\S+)$# and $changed{$1} = 1;
}
close(CHANGES);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub read_files {
# read list of files
# lines starting with # are comments
my $file = shift;
my @list;
open(LIST,"<$file") || die "fcopy: Can't open file $file\n";
while (<LIST>) {
next if /^#/;
chomp;
push @list, $_;
}
return @list;
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub usage {
print << "EOF";
fcopy, copy files using classes.
Copyright (C) 2001-2010 by Thomas Lange
Usage: fcopy [OPTION] ... SOURCE ...
-B Remove backup file.
-c class[,class] Define classes.
-C file Read classes from file.
-d Remove target file if no class applies.
-D Create debug output.
-F file Read list of sources from file.
-h Show summary of options.
-i Exit with 0 when no class applies.
-I dir[,dir] Override default list of ignored subdirectories
-l Do not copy if destination is a symbolic link.
-L file Log destination and used class to file
-m user,group,mode Set user, group and mode for copied files.
-M Same as -m root,root,0644
-n Print the commands, but do not execute them.
-P log,changes Copy if class or source for class has changed since
previous run
-r Copy recursivly but skip ignored directories.
-s source_dir Look for source files relative to source_dir.
-t target_dir Copy files relativ to target_dir.
-b backup_dir Where to save backups of overwritten files
-v Create verbose output.
EOF
exit 0;
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# main program
$|=1;
getopts('Ms:t:rm:vidDc:C:hF:lL:P:Bb:I:Un') || usage;
$opt_h && usage;
$dryrun = $ENV{FCOPY_DRYRUN} || $opt_n || 0; # is true if in dry-run mode
$dryrun and warn "Dry-run only! Nothing is really executed.\n";
$opt_M and $opt_m = "root,root,0644"; # set default modes
$opt_m && check_mopt();
$nobackup = $opt_B || $ENV{FCOPY_NOBACKUP} || 0;
$verbose = $opt_v || $ENV{verbose} || 0;
$debug = $opt_D || $ENV{debug} || 0;
$source = $opt_s || $ENV{FAI} && "$ENV{FAI}/files" || `pwd`;
chomp $source; # since pwd contains a newline
$target = $opt_t || $ENV{FAI_ROOT} || $ENV{target};
$target eq "/" or $ENV{'ROOTCMD'}="chroot $target";
$logfile = $opt_L || $ENV{LOGDIR} && "$ENV{LOGDIR}/fcopy.log" || 0;
$logfile and (open(LOGFILE,">> $logfile") || die "can't open logfile: $!");
$backupdir = $opt_b || $ENV{FAI_BACKUPDIR};
if ($opt_U && -f "/var/run/fai/fai_softupdate_is_running" ) {
print "Skipping this fcopy command during softupdate." if $verbose;
exit 0;
}
if ($ENV{FCOPY_LASTLOG} and $ENV{FCOPY_UPDATELOG}) {
$opt_update = "$ENV{FCOPY_LASTLOG},$ENV{FCOPY_UPDATELOG}";
}
$opt_P and $opt_update=$opt_P;
$opt_update and read_status();
#for postinst scripts
$ENV{'FAI_ROOT'} = $ENV{'target'} = $target;
# last class has highest priority
$ENV{classes} and @classes = split /\s+/,$ENV{classes};
$opt_c and @classes = split /,/,$opt_c;
$opt_C and @classes = read_classes($opt_C);
warn join ' ','Classes:',@classes,"\n" if $debug;
@classes = reverse @classes;
$opt_F and @ARGV = read_files($opt_F);
$ENV{'FCOPY_IGNOREDIRS'} and @ignoredirs = split /\s+/,$ENV{'FCOPY_IGNOREDIRS'};
$opt_I and @ignoredirs = split /,/,$opt_I;
die "fcopy: source undefined\n" unless $source;
die "fcopy: target undefined\n" unless $target;
if ($opt_r) {
foreach (@ARGV) { $_="$source/$_"; } # add prefix to list of directories
my %has_subdirs;
my %ignoredirs;
map $ignoredirs{$_}=1,@ignoredirs;
File::Find::find({
wanted=>sub{ $has_subdirs{$File::Find::dir} |= -d},
preprocess=>sub{grep ! (-d and exists($ignoredirs{$_})),@_}},
@ARGV);
foreach (keys %has_subdirs) {
unless ($has_subdirs{$_}) {
# remove prefix from all files found
s#^\Q$source/##;
push @rlist,$_;
}
}
warn "List of all files found by File::Find::find: @rlist" if $debug;
@ARGV = @rlist;
}
foreach (@ARGV) { copy_one($source,$_,$target); }
$opt_i && exit 0; # ignore any warning
exit $error;
|