Server IP : 85.214.239.14 / Your IP : 18.118.186.156 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /proc/3/cwd/proc/3/cwd/usr/share/perl5/Dpkg/Source/ |
Upload File : |
# Copyright © 2008-2010, 2012-2015 Guillem Jover <guillem@debian.org> # # 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. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. package Dpkg::Source::Functions; use strict; use warnings; our $VERSION = '0.01'; our @EXPORT_OK = qw( erasedir fixperms chmod_if_needed fs_time is_binary ); use Exporter qw(import); use Errno qw(ENOENT); use Dpkg::ErrorHandling; use Dpkg::Gettext; use Dpkg::File; use Dpkg::IPC; sub erasedir { my $dir = shift; if (not lstat($dir)) { return if $! == ENOENT; syserr(g_('cannot stat directory %s (before removal)'), $dir); } system 'rm', '-rf', '--', $dir; subprocerr("rm -rf $dir") if $?; if (not stat($dir)) { return if $! == ENOENT; syserr(g_("unable to check for removal of directory '%s'"), $dir); } error(g_("rm -rf failed to remove '%s'"), $dir); } sub fixperms { my $dir = shift; my ($mode, $modes_set); # Unfortunately tar insists on applying our umask _to the original # permissions_ rather than mostly-ignoring the original # permissions. We fix it up with chmod -R (which saves us some # work) but we have to construct a u+/- string which is a bit # of a palaver. (Numeric doesn't work because we need [ugo]+X # and [ugo]=<stuff> doesn't work because that unsets sgid on dirs.) $mode = 0777 & ~umask; for my $i (0 .. 2) { $modes_set .= ',' if $i; $modes_set .= qw(u g o)[$i]; for my $j (0 .. 2) { $modes_set .= $mode & (0400 >> ($i * 3 + $j)) ? '+' : '-'; $modes_set .= qw(r w X)[$j]; } } system('chmod', '-R', '--', $modes_set, $dir); subprocerr("chmod -R -- $modes_set $dir") if $?; } # Only change the pathname permissions if they differ from the desired. # # To be able to build a source tree, a user needs write permissions on it, # but not necessarily ownership of those files. sub chmod_if_needed { my ($newperms, $pathname) = @_; my $oldperms = (stat $pathname)[2] & 07777; return 1 if $oldperms == $newperms; return chmod $newperms, $pathname; } # Touch the file and read the resulting mtime. # # If the file doesn't exist, create it, read the mtime and unlink it. # # Use this instead of time() when the timestamp is going to be # used to set file timestamps. This avoids confusion when an # NFS server and NFS client disagree about what time it is. sub fs_time($) { my $file = shift; my $is_temp = 0; if (not -e $file) { file_touch($file); $is_temp = 1; } else { utime(undef, undef, $file) or syserr(g_('cannot change timestamp for %s'), $file); } stat($file) or syserr(g_('cannot read timestamp from %s'), $file); my $mtime = (stat(_))[9]; unlink($file) if $is_temp; return $mtime; } sub is_binary($) { my $file = shift; # Perform the same check as diff(1), look for a NUL character in the first # 4 KiB of the file. open my $fh, '<', $file or syserr(g_('cannot open file %s for binary detection'), $file); read $fh, my $buf, 4096, 0; my $res = index $buf, "\0"; close $fh; return $res >= 0; } 1;